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Ramadhani, Saidina, M. Abduh Ulim, and Trisda Kurniawan. "Perlakuan biopriming kombinasi ekstrak tomat dan Trichoderma spp. terhadap viabilitas dan vigor benih terung (Solanum melongena L.) kadaluarsa." Jurnal Ilmiah Mahasiswa Pertanian 3, no. 2 (May 1, 2018): 80–89. http://dx.doi.org/10.17969/jimfp.v3i2.7493.
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Abstrak. Penelitian tentang pengaruh perlakuan biopriming terhadap viabilitas dan vigor benih terung kadaluarsa dilaksanakan di Laboratorium Ilmu dan Teknologi Benih dan Laboratorium Penyakit Tanaman Universitas Syiah Kuala, Banda Aceh pada bulan Agustus sampai dengan Oktober 2017. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi ekstrak buah tomat dan spesies Trichoderma spp. serta interaksi antara konsentrasi ekstrak buah tomat dan spesies Trichoderma spp. terhadap viabilitras dan vigor benih terung kadaluarsa. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Kelompok (RAL) pola faktorial dengan 2 faktor dan 3 ulangan. Faktor pertama yaitu konsentrasi ekstrak buah tomat yang terdiri atas 4 taraf dan faktor kedua yaitu spesies Trichoderma spp. yang terdiri atas 3 taraf. Hasil penelitian menunjukkan bahwa konsentrasi ekstrak buah tomat terbaik dijumpai pada konsentrasi ekstrak buah tomat 10%, baik yang dikombinasikan dengan T. harzianum maupun T. asperellum. Jenis Trichoderma spp. terbaik dijumpai pada T. harzianum pada semua konsentrasi ekstrak buah tomat.Kata kunci: Biopriming, Ekstrak Buah Tomat, Trichoderma spp..Biopriming Treatment Combination of Tomato Extract and Trichoderma spp. to Viability and Vigor of Expired Eggplant Seeds Abstract. Research on the effect of biopriming treatment on viability and vigor of expired eggplant seeds was conducted at the Laboratory of Seed Science and Technology and Plant Disease Laboratory of Syiah Kuala University, Banda Aceh from August to October 2017. This study aims to determine the effect of tomato extract concentration and species Trichoderma spp. as well as the interaction between the concentration of tomato extract and species Trichoderma spp. to viability and vigor of expired eggplant seeds. This research was conducted by using Randomized Block Design (RBD) factorial pattern with 2 factors and 3 replications. The first factor is the concentration of tomato extract consisting of 4 levels and the second factor is species Trichoderma spp. which consists of 3 levels. The results showed that the best concentration of tomato extract was found in the concentration of 10% tomato extract, both combined with T. harzianum and T. asperellum. The best species of Trichoderma spp. found in T. harzianum in all concentrations of tomato extracts.Keywords : Biopriming, Tomato Extract, Trichoderma spp..
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Alaa, Almasri, Azizieh Abdulhakim, and Tlay Rawaa. "Potato and tomato peel extract – A natural antioxidant for retarding lipid peroxidation in lamb meat (Awassi) refrigerator storage." Journal of Food, Nutrition and Agriculture 2, no. 1 (April 22, 2019): 1. http://dx.doi.org/10.21839/jfna.2019.v2i1.179.
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This work examined the utilization of potato and tomato peels, as antioxidants natural source for retarding lipid oxidation in slices of lamb meat (Awassi). Meat slices treated with potato peel extract (PPE) and tomato peel extract (TPE) in two different concentrations (0.1%, 0.5%). Then, lipid peroxidation and pH was determined in samples at three different periods with 5 days. We found low levels of peroxide value in samples due to treatment with natural antioxidants. Potato peel extracts were less effective than tomato peel extracts due to lower phenolic content 96.66 mg of Gallic acid /100 g in potato peel extract vs 130.53 mg of Gallic acid /100 g. We suggest using tomato peel extract for retarding lipid peroxidation in chilled storage of lamb meat.
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Concha-Meyer, Anibal, Iván Palomo, Andrea Plaza, Adriana Gadioli Tarone, Mário Roberto Maróstica Junior, Sonia G. Sáyago-Ayerdi, and Eduardo Fuentes. "Platelet Anti-Aggregant Activity and Bioactive Compounds of Ultrasound-Assisted Extracts from Whole and Seedless Tomato Pomace." Foods 9, no. 11 (October 28, 2020): 1564. http://dx.doi.org/10.3390/foods9111564.
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Tomato paste production generates a residue known as tomato pomace, which corresponds to peels and seeds separated during tomato processing. Currently, there is an opportunity to use tomato pomace to obtain a functional extract with antithrombotic properties, such as platelet anti-aggregant activity. The aim of this study was to evaluate the yield and inhibitory activity of different extracts of tomato pomace on in vitro platelet aggregation, comparing this activity with commercial cardioprotective products, and quantify bioactive compounds. Aqueous or ethanolic/water (1:1) extracts of whole tomato pomace, seedless tomato pomace, tomato pomace supplemented with seeds (50% and 20%), and only seeds were obtained with different ultrasound-assisted extraction times. The inhibition of platelet aggregation was evaluated using a lumi-aggregometer. The quantification of bioactive compounds was determined by HPLC-MS. From 5 g of each type of tomato pomace sample, 0.023–0.22 g of a dry extract was obtained for the platelet aggregation assay. The time of sonication and extraction solvent had a significant role in platelet anti-aggregant activity of some extracts respect the control. Thus, the most active extracts decreased adenosine diphosphate (ADP)-induced platelet aggregation from 87 ± 6% (control) to values between 26 ± 6% and 34 ± 2% (p < 0.05). Furthermore, different ultrasound-assisted extraction conditions of tomato pomace fractions had varied concentration of flavonoids and nucleosides, and had an effect on extract yield.
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Kurniawan, Edy, Idham Halid, and Agustina Agustina. "Antibacterial Activity Of Plants Extract Drug Effective Against Pseudomonas aeruginosa Antibiotics Resistance To Quinolone And Cephalosporine." Medicra (Journal of Medical Laboratory Science/Technology) 5, no. 1 (July 31, 2022): 35–39. http://dx.doi.org/10.21070/medicra.v5i1.1627.
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Antibiotics are empirically used as drugs to treat bacterial infections, but the irrational use of antibiotics causes bacterial resistance to certain antibiotic regimens, therefore solutions are needed to explore alternative drugs. This study aims to explore medicinal plants that are able to inhibit Pseudomonas aeruginosa bacteria that are resistant to quinolones and cephalosporins. The method used is descriptive observational and antibacterial activity test of plant extracts using the well diffusion method. Three plant extracts were used, binahong extract (Andredera cordifolia), tomato fruit extract (Lycopersicon esculentum), and aloe vera extract (Aloe vera). The results showed that only tomato extract inhibited Pseudomonas aeruginosa bacteria with a strong category, while binahong and aloe vera extracts could not inhibit the test bacteria. It was concluded that tomato fruit extract might be an alternative as a medicinal plant because it was able to inhibit P. aeruginosa resistant to quinolones and cephalosporin antibiotics.
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de Leeuw, Peter W., and Aalt Bast. "Tomato Extract for Hypertension?" Cardiovascular Drugs and Therapy 23, no. 2 (February 14, 2009): 107–8. http://dx.doi.org/10.1007/s10557-008-6161-4.
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Khumara, Agustina P., Henry Y. Mandalas, and Vinna K. Sugiaman. "Effect of Servo Tomato (Solanum lycopersicum) extract on Incision Wound Healing." e-GiGi 10, no. 2 (August 7, 2022): 233. http://dx.doi.org/10.35790/eg.v10i2.41503.
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Abstract: Herbal medicines such as Servo tomato containing flavonoids and saponins can increase the number of fibroblasts in the wound tissue, therefore, it can help to speed up wound healing time. This study aimed to determine the effect of servo tomato ethanol extract on wound healing time based on the day of the incision. This was a true laboratory experimental study using 30 male Wistar rats (Rattus Norvegicus) divided into six groups; each group consisted of five rats, Group I was given aquadest as a negative control, Group II was given 10% povidone iodine solution as a positive control, and Groups III-VI were given 25%, 50%, 75%, and 100% solutions of Servo tomato ethanol extract, consecutively. The results showed that there were differences in the length of the incision wounds among groups from time to time as a response of wound healing. Incision wound length in Group VI (100%) after seven days had a mean of zero (0.00 mm). The ANOVA test resulted in a p-value of 0.1537 (<0.05) in the six treatment groups. The mean incision length was the shortest in the group applied with 100% Servo tomato ethanol extract. In conclusion, there was an effect of Servo tomato ethanol extract on incision wound healing time on the labial mucosa of male Wistar rats.Keywords: tomato ethanol extract; incision wound; healing time Abstrak: Tanaman herbal seperti tomat Servo yang mengandung flavonoid dan saponin dapat mening-katkan jumlah fibroblas dalam jaringan luka yang membantu mempercepat waktu penyembuhan luka. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak etanol tomat Servo terhadap waktu penyembuhan luka berdasarkan hari dilakukan insisi. Jenis penelitian ialah eksperimental laboratorik dengan hewan coba tikus Wistar jantan (Rattus norvegicus) berjumlah 30 ekor, dibagi menjadi enam kelompok penelitian; setiap kelompok terdiri dari lima ekor tikus. Kelompok I diberikan larutan aquadest sebagai kontrol negatif, kelompok II diberikan larutan povidone iodine 10% sebagai kontrol positif, dan kelompok III-VI diberikan larutan ekstrak etanol tomat Servo 25%, 50%, 75%, dan 100%. Hasil penelitian mendapatkan perbedaan panjang luka insisi antar kelompok dari waktu ke waktu sebagai respon penyembuhan luka. Panjang luka insisi pada kelompok VI (100%) setelah tujuh hari memiliki rerata nol (0,00 mm). Hasil uji ANOVA mendapatkan nilai p=0,1537<0,05 pada keenam kelompok perlakuan. Jumlah rerata panjang luka insisi paling kecil pada kelompok yang diaplikasikan dengan ekstrak etanol tomat Servo 100%. Simpulan penelitian ini ialah terdapat pengaruh ekstrak etanol tomat Servo (Solanum lycopersicum) terhadap panjang luka selama waktu penyembuhan luka insisi pada mukosa labial tikus Wistar jantan.Kata kunci: ekstrak etanol tomat; luka insisi; waktu penyembuhan
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Stajcic, Sladjana, Gordana Cetkovic, Sonja Djilas, and Jasna Canadanovic-Brunet. "Kinetic study of the DPPH antiradical activity of lipophilic tomato waste extracts." Acta Periodica Technologica, no. 44 (2013): 301–12. http://dx.doi.org/10.2298/apt1344301s.
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In this study, lipophilic tomato waste extracts (obtained from the Knjaz, Backa, Saint Pierre, Rutgers and Novosadski niski genotypes) were analyzed to determine their lycopene and ?-carotene content, as well as their kinetics of antiradical activity. The kinetic behaviour of lipophilic tomato waste extracts and standard antioxidant compound (BHA) were investigated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical test. In addition, correlations between the contents of lycopene and ?-carotene content and antiradical activity of lipophilic tomato waste extracts were also sought. The content of lycopene in tomato waste extracts ranged from 4.29 ? 0.14 mg/g for Rutgers waste exract to 22.64 ? 0.86 mg/g for Knjaz waste extract, while the content of ?-carotene varied from 2.48 ? 0.09 mg/g for Novosadski niski waste exract to 15.93 ? 0.56 mg/g for Knjaz waste extract. Based on the time required for the DPPH radical-extract reaction to reach steady state, the investigated lipophilic extracts, as well as BHA can be classified as the antioxidants with slow (steady state ? 150 min) antiradical behaviour. A comparison of the efficient concentrations at different kinetic times (EC50,t) for the lipophilic tomato waste extracts and BHA showed that the DPPH antiradical activity decreased in the order of BHA > Knjaz > Backa > Saint Pierre > Rutgers > Novosadski niski. The results of the correlation analysis suggest that lycopene is the main individual carotenoid responsible for the EC50,t values of the tomato waste extracts towards the stable DPPH radical.
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Nuraeni, Farida, Leny Heliawati, and Melani Nurastuti. "Antioxidant Activity Test from Vegetable Tomato (Solanum lycopersicum) and Cherry Tomato (Solanum lycopersicum var. Cerasiforme) in Hand and Body Cream." Helium: Journal of Science and Applied Chemistry 2, no. 1 (June 30, 2022): 7–12. http://dx.doi.org/10.33751/helium.v2i1.5302.
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Dry, scaly, rough skin conditions accompanied by wrinkles and black spots characterize the skin that experiences premature aging. One of the causes of premature aging is free radicals. These free radicals can be overcome with natural or artificial antioxidants. Natural antioxidants are found in fruits and vegetables, one of which is tomatoes. Tomatoes in direct use are less effective, so they are made in the form of hand and body cream. Production of vegetable tomato and cherry tomato extracts fruit extraction and maceration using 96% ethanol, then concentrated with a rotary evaporator until the extract is thick. The extracts of vegetable tomatoes and cherry tomatoes were then tested for phytochemical, antioxidant activity, and identification of compounds with LC-MS, then applied to hand and body cream with a concentration of 1% and 3% with codes F0, F1, F2, F3, and F4. Hand and body cream of tomato extract are tested by measuring pH, viscosity, specific gravity, total microbial Contamination, homogeneity and testing for antioxidant activity using the DPPH method. Phytochemical test results showed that flavonoid compounds were present in both extracts. The antioxidant activity of vegetable tomato ethanol extract was obtained with an IC50 value of 947.81ppm, and an IC50 value of 473.51 ppm was obtained for cherry tomato extract. From the LC-MS analysis, the compounds contained in cherry tomatoes, namely esculeoside A and B as cytotoxic activity, dehydrotomat as an antibacterial, kaempferol-3-O-rutinoside as an antioxidant, and tomatidine as an antibiotic. Antioxidant activity of hand and body cream, hand and body cream F4 (964.05 ppm), hand and body cream F3 (1001.97 ppm), hand and body cream F2 (1033.73 ppm), hand body cream F1 (1036.61 ppm), and hand and body cream F0 (1486.14 ppm). Hand and body cream cherry tomato extract 3%, formula 4 (F4), has the highest antioxidant activity. It can be concluded that the addition of extract concentration affects the antioxidant activity value of hand and body cream. Body cream F2 (1033.73 ppm), hand body cream F1 (1036.61 ppm), and hand and body cream F0 (1486.14 ppm). Hand and body cream cherry tomato extract 3%, formula 4 (F4), has the highest antioxidant activity. It can be concluded that the addition of extract concentration affects the antioxidant activity value of hand and body cream. Body cream F2 (1033.73 ppm), hand body cream F1 (1036.61 ppm), and hand and body cream F0 (1486.14 ppm). Hand and body cream cherry tomato extract 3%, formula 4 (F4), has the highest antioxidant activity. It can be concluded that the addition of extract concentration affects the antioxidant activity value of hand and body cream.
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Le Thi, Thuy, and Thu Nguyen Thi Hoai. "Bioefficacy of plant extracts against the diamondback moth (Plutella xylostella L.)." Journal of Science Natural Science 66, no. 1 (March 2021): 157–64. http://dx.doi.org/10.18173/2354-1059.2021-0019.
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This study aimed to evaluate the effect of three types of plant extracts on pest mortality, pest chasing away effects, and antifeedant index. The results released that the rate of chasing diamondback moth reached 53.10% when spraying ginger-garlic-chili extract. This ratio when using the extracts from shallot and tomato leaves was respectively 31.48% and 27.80%. Similarly, with two other research criteria, the use of ginger-garlic-chili extract also brought the strongest efficiency when the pest mortality and antifeedant index were created 86.63% and 94.60%. Spraying the extracts of shallot and tomato leaves showed the low effects on the diamondback moth mortality at the rates of 50.25% and 40.65%. Besides, the antifeedant index of the pest was only 64.23% and 44.45% respectively when using the extracts from the shallot and tomato leaf. These results initially indicated that the ginger-garlic-chili extract had a positive effect on the prevention of diamondback moth.
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Khan, Rashid Iqbal. "Fenugreek extract application improves plant performance of Alternaria solani infected tomato plants." Pakistan Journal of Agricultural Sciences 58, no. 04 (September 1, 2021): 1263–75. http://dx.doi.org/10.21162/pakjas/21.1575.
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Plant extracts (PE’s) has emerged as a safer alternative to manage the fungal pathogens affecting tomato productivity. The current study aimed to evaluate the antimicrobial potential of methanolic fenugreek extract against Alternaria solani, a causal agent of early blight disease in tomato. Fenugreek extract was used at different concentrations of 5%, 10%, 15%, 20% and 25% under in vitro conditions. Results concluded that 25% fenugreek extract significantly reduced the radial growth (2.5 cm) of A. solani under in vitro conditions. Based on in vitro results, three concentrations (5%, 15% and 25%) of fenugreek extract was examined under greenhouse and field conditions. The outcomes expressed that 5% fenugreek extract reduced the disease severity up to 30.19% under greenhouse conditions and up to 40.53% under field trials. Although, application of fenugreek extract had exhibited non-significant impact on vegetative and reproductive growth parameters. However, its application had proved better results as compared to those plants which are infected with A. solani but received zero application of fenugreek extract. Furthermore, the effectiveness of plant extracts was evaluated by variant photosynthetic, antioxidative, polyphenolic and hypersensitive response of A. solani affected tomato plants. The 25% fenugreek extract application had augmented the chlorophyll pigments along with the significant increment of superoxide dismutase (174.16 U mg-1 protein), peroxidase (7.61 µmol min-1 g-1 protein) and catalase activity (4.73 nmol min-1 g-1 protein). Similar outcomes were observed regarding phenolic compounds, where 5% fenugreek extract application had enhanced flavonoid levels (26.62 mg QuE g-1), tannins (1.28 mg TE g-1 extract) and total phenolic contents (2.39 mg GAE g-1) in tomato leaves demonstrating its protective effect against early blight. In dose response, 25% fenugreek extract was most effective in reducing lipid peroxidation and enhancing H2O2 levels. The outcomes of study exhibited the fenugreek extract as an effective strategy to be used against A. solani to control early blight infection in tomato plants. Thus, it can serve as suitable fungicide alternative for resource-poor agriculture areas mainly in developing countries.
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MURTIC, Senad, Rodoljub OLJACA, Mirela SMAJIC MURTIC, Amila VRANAC, Ivana KOLESKA, and Lutvija KARIC. "Effects of seaweed extract on the growth, yield and quality of cherry tomato under different growth conditions." Acta agriculturae Slovenica 111, no. 2 (October 29, 2018): 315. http://dx.doi.org/10.14720/aas.2018.111.2.07.
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<p>An experiment was carried out to determine the effect of foliar application of seaweed extract (0.2 %) on the growth, yield and quality of cherry tomato under stress and non-stress conditions. The greenhouse experiment was set up in a randomized block design with four treatments in three replications. Treatments were as follows: V<sub>1</sub> - seedlings treated by seaweed extract and subjected to drought; V<sub>2</sub> - seedlings treated by seaweed extract and regularly watered; V<sub>3</sub> - non-treated seedlings subjected to drought; V<sub>4</sub> - non-treated seedlings regularly watered. Cherry tomato seedlings treated by seaweed extract had a lower content of proline and higher leaf water potential compared to non-treated seedlings under stress conditions, indicating that application of this fertilizer contributes to better adaptation of cherry tomato seedlings to stress. Treatment with seaweed extract also positively influenced the yield and quality of cherry tomato (total soluble solids, vitamin C, lycopene) under both standard and drought stress conditions as compared to untreated plants in same conditions. Positive effects of seaweed extract on growth and quality of cherry tomato are result of its specific composition, as well as ability of cherry tomato plants to utilize bioactive substances in seaweed extracts for its growth and development.</p>
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El Boukhari, Mohammed El Mehdi, Mustapha Barakate, Nadia Choumani, Youness Bouhia, and Karim Lyamlouli. "Ulva lactuca Extract and Fractions as Seed Priming Agents Mitigate Salinity Stress in Tomato Seedlings." Plants 10, no. 6 (May 30, 2021): 1104. http://dx.doi.org/10.3390/plants10061104.
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The present study investigates the effect of Ulva lactuca extract as seed-priming agent for tomato plants under optimal and salinity stress conditions. The aims of this experiment were to assess the effect of seed priming using Ulva lactuca extract in alleviating the salinity stress tomato plants were subjected to, and to find out the possible mechanism of actions behind such a positive effect via means of fractionation of the crude extract and characterization. Salinity application decreased the plant biomass and altered different physiological traits of tomato. However, the application of Ulva lactuca methanol extract (ME) and its fractions (residual fraction (RF), chloroform fraction (CF), butanol fraction (BF), and hexane fraction (HF)) at 1 mg·mL−1 as seed priming substances attenuated the negative effects of salinity on tomato seedlings. Under salinity stress conditions, RF application increased the tomato fresh weight; while ME, RF, and HF treatments significantly decreased the hydrogen peroxide (H2O2) concentration and antioxidant activity in tomato plants. The biochemical analyses of Ulva lactuca extract and fractions showed that the RF recorded the highest concentration of glycine betaine, while the ME was the part with the highest concentrations of total phenols and soluble sugars. This suggests that these compounds might play a key role in the mechanism by which seaweed extracts mitigate salinity stress on plants.
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Cahyanti, Risma Eva, Yusminah Hala, and A. Mu’nisa. "Determination of total phenolic content and antioxidant activity of fruit mix from Malino, Gowa Regency, South Sulawesi." IOP Conference Series: Earth and Environmental Science 911, no. 1 (November 1, 2021): 012085. http://dx.doi.org/10.1088/1755-1315/911/1/012085.
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Abstract This study aimed to determine the total phenolic content and antioxidant activity of single fruit extracts and mixtures of tomatoes (Solanum lycopersicum), purple passion fruit (Passiflora edulis var. Sims), and strawberries (Fragaria sp.). Tomatoes, purple passion fruit and strawberries were extracted using 96% ethanol as solvent using the maceration method. Determination of total phenolic content using the Folin-ciocalteu method, measurement of antioxidant activity using the DPPH method (1.1 diphenyl-2-picrylhydrazil) spectrophotometrically and measuring the degree of acidity (pH) using a pH meter. Data were analyzed using ANOVA with Tukey’s further test. The results showed that the total phenolic content of tomatoes, purple passion fruit and strawberries before and after mixing were tomato extract (1,731 mg GAE/g), purple passion fruit extract (1,577 mg GAE/g), strawberry extract (1,917 mg GAE)./g), tomato and purple passion fruit extract (1,758 mg GAE/g), tomato and strawberry extract (2,020 mg GAE/g), strawberry and purple passion fruit extract (1,924 mg GAE/g) and tomato, purple passion fruit extract and strawberries (2.107 mg GAE/g). The antioxidant activity showed that there was a significant difference between the purple passion fruit treatments (78.695%), tomatoes and strawberries (86.160%) and tomatoes, purple passion fruit and strawberries (88.328%), but not significantly different from the tomatoes (80.683 %), tomatoes and purple passion fruit (82,059 %) as well as the treatment of strawberries (83.690 %), strawberries and purple passion fruit (84.097 %), but significantly different from the BHA control (93.526 %). It can be concluded that the total phenolic content and antioxidant activity of the mixed extracts of the three fruits, namely tomatoes, purple passion fruit and strawberries, were higher than those of the single fruit extracts without mixing.
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Yusoff, Siti Fairuz, Farah Farhanah Haron, Mahmud Tengku Muda Mohamed, Norhayu Asib, Siti Zaharah Sakimin, Faizah Abu Kassim, and Siti Izera Ismail. "Antifungal Activity and Phytochemical Screening of Vernonia amygdalina Extract against Botrytis cinerea Causing Gray Mold Disease on Tomato Fruits." Biology 9, no. 9 (September 11, 2020): 286. http://dx.doi.org/10.3390/biology9090286.
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Gray mold disease caused by Botrytis cinerea is a damaging postharvest disease in tomato plants, and it is known to be a limiting factor in tomato production. This study aimed to evaluate antifungal activities of Vernonia amygdalina leaf extracts against B. cinerea and to screen the phytochemical compound in the crude extract that had the highest antifungal activity. In this study, crude extracts of hexane, dichloromethane, methanol, and water extracts with concentration levels at 100, 200, 300, 400, and 500 mg/mL were shown to significantly affect the inhibition of B. cinerea. Among the crude extracts, dichloromethane extract was shown to be the most potent in terms of antifungal activities. The SEM observation proved that the treatment altered the fungal morphology, which leads to fungal growth inhibition. For the in vivo bioassay, the fruits treated with dichloromethane extract at 400 and 500 mg/mL showed the lowest disease incidence with mild severity of infection. There were 23 chemical compounds identified in V. amygdalina dichloromethane extract using GCMS analysis. The top five major compounds were dominated by squalene (16.92%), phytol (15.05%), triacontane (11.31%), heptacosane (7.14%), and neophytadiene (6.28%). Some of these significant compounds possess high antifungal activities. This study proved that V. amygdalina from dichloromethane extract could be useful for inhibiting gray mold disease on tomato fruit and has potential as a natural antifungal agent.
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Baldin, Edson LL, Thiago LM Fanela, Luiz ER Pannuti, Massuo J. Kato, Renata Takeara, and Antônio EM Crotti. "Botanical extracts: alternative control for silverleaf whitefly management in tomato Extratos botânicos: controle alternativo para o manejo de mosca-branca em tomateiro." Horticultura Brasileira 33, no. 1 (March 2015): 59–65. http://dx.doi.org/10.1590/s0102-053620150000100010.
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Bemisia tabaci (Hemiptera: Aleyrodidae) biotype B is one of the most limiting pests of tomato crops in the world. Tomato yield is currently dependent on the use of pesticides, which are problematic to farmers, consumers and the environment. A promising alternative to reduce the harmful effects caused by the indiscriminated use of synthetic insecticides is the use of insecticides of botanical origin. This study aimed to evaluate the effect of 3% (w/v) aqueous extracts from different structures of thirteen botanical species on the behavior of B. tabaci biotype B adults, as well as insecticidal activity of such aqueous extracts on B. tabaci eggs, nymphs, and adults infesting tomato plants. A distilled water solution was used as a negative control, and thiamethoxam insecticide (18 g/100 L of water) as a positive control. Leaf extract of Toona ciliata was observed to have the most efficient inhibitory effect in tests of extracts on whitefly behavior. Furthermore, the use of leaf extract of Toona ciliata led to the most drastic reduction in the number of adults and eggs on tomato leaflets. Leaf extract of Piper aduncum led to the greatest observed ovicidal effect (78.00% of non-hatched nymphs); however it was not effective against nymphs and adults. The leaf extracts of Trichilia pallida, Trichilia casaretti, and Toona ciliata showed the highest control indexes (67.9, 60.3, and 55.1%, respectively). For adults mortality, T. pallida was the most effective (72.8%). Our results indicate that application of extracts of T. pallida, T. ciliata, and T. casaretti are promising strategies to manage B. tabaci biotype B on tomato.
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Santo, Eky, Djamilah Djamilah, and Entang Inoriah. "EFEKTIVITAS NEMATISIDA DAUN JARAK PAGAR (Jatropha curcas L.) DALAM MENGHAMBAT SERANGAN NEMATODA PURU AKAR (Meloidogyne spp.) PADA TANAMAN TOMAT." Jurnal Ilmu-Ilmu Pertanian Indonesia 21, no. 1 (June 26, 2019): 1–8. http://dx.doi.org/10.31186/jipi.21.1.1-8.
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[THE EFFECTIVENESS Jatropha curcas (L.) LEAF EXTRACTS IN INHIBIT ROOT-KNOT NEMATODE (Meloidogyne spp.) INJURIES ON TOMATO]. One of the main problems in tomato cultivation is the attack of root purse nematodes (Meloidogyne spp.). Some methods of controlling Meloidogyne spp. which can be done including using plants as vegetable nematicides. This study aims to get the concentration of Jatropha leaf extract which is effective in inhibiting the Meloidogyne spp attack on tomato plants. This study used 48 plants, 24 plants for observation 35 days after planting and 24 plants for observation until the age of 77 days after planting. This study used a Completely Randomized Design (CRD) with the treatment of Jatropha leaf extract concentrations (0%, 10%, 20%, 30%, 40%, 50%), and repeated four times. The results showed Jatropha curcas extract in inhibiting the attack of root purse nematodes (Meloidogyne spp.) can maintain plant height, fruit number, fruit weight, and plant stover wet weight 35 days after planting, but no significant effect on stover wet weight plants 77 days after planting and dry weight of plant stover 35 days after planting and 77 days after planting. The concentration of Jatropha leaf extract tends to increase the concentration, the smaller the rate of infection and the population of Meloidogyne spp on tomato plants. The concentration of Jatropha leaf extract 35% - 45% is the optimum concentration in inhibiting Meloidogyne spp. on tomato plants.
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Mersie, Wondimagegnehu, and Megh Singh. "Effects of Phenolic Acids and Ragweed Parthenium (Parthenium hysterophorus) Extracts on Tomato (Lycopersicon esculentum) Growth and Nutrient and Chlorophyll Content." Weed Science 36, no. 3 (May 1988): 278–81. http://dx.doi.org/10.1017/s0043174500074865.
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The effects of caffeic, vanillic,p-coumaric, chlorogenic, and ferulic acids, ragweed parthenium (Parthenium hysterophorusL. # PTNHY) residue and extracts on the growth, ion uptake, and chlorophyll content of 3-week-old tomatoes (Lycopersicon esculentumMill. ‘Walter’) grown in the greenhouse were determined Vanillic,p-coumaric, chlorogenic, and ferulic acid at 10−3M and parthenium extract at 0.5% (w/v) significantly reduced tomato root and shoot dry weight. Ragweed parthenium residue at 0.5% (w/w) and extract at 0.5% (w/v) significantly reduced tomato shoot and root dry weight. Leaf nitrogen content was reduced by phenolic acids (10−3M) and ragweed parthenium extract (0.5%). Phosphorus content was reduced by all phenolic acids at 10−3M and ragweed parthenium extract at 0.5% (w/v). In addition,p-coumaric and ferulic acids at 10−4M reduced phosphorus content. No consistent relationship between chlorophyll content and tomato growth reduction was observed.
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Brito, Elaine Ferrari de, Edson Luiz Lopes Baldin, Roney de Carvalho Macedo Silva, Leandro do Prado Ribeiro, and José Djair Vendramim. "Bioactivity of Piper extracts on Tuta absoluta (Lepidoptera: Gelechiidae) in tomato." Pesquisa Agropecuária Brasileira 50, no. 3 (March 2015): 196–202. http://dx.doi.org/10.1590/s0100-204x2015000300002.
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The objective of this work was to evaluate the bioactivity of ethanolic leaf extracts from four species of the genus Piper against the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) under laboratory conditions. The evaluated species were: P. amalago var. medium, P. glabratum, P. mikanianum, and P. mollicomum. In the initial screening assay (extract concentration of 2,000 mg L-1), all tested extracts caused significant larval mortality, particularly the extract of P. amalago var. medium; however, no extracts reduced the weight of the surviving larvae. The extract from P. amalago var. medium at the concentration of 1,011 mg L-1 caused a significant lengthening of the larval and pupal stages. The ethanolic leaf extract of P. amalago var. medium is promising for the control of T. absoluta larvae in tomato, since it exhibits acute toxicity toward these caterpillars at the concentration of 2,000 mg L-1 and affects the insect's development by reducing its survival and lengthening the larval and pupal stages.
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O.O, Oduntan,. "Assessment of the Bio Preservative Efficacy of Trametes polyzona (pers.) Extracts on Tomato Fruits." International Journal of Innovative Science and Research Technology 5, no. 6 (July 11, 2020): 1206–21. http://dx.doi.org/10.38124/ijisrt20jun884.
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The present study examined the biopreservative efficacy of Trametes polyzona extracts on tomato fruits. Microorganisms associated with the spoilage of tomato fruits were isolated and identified using standard microbiological methods. Pathogenicity test of all the microbial isolates were also done using standard techniques. Qualitative and quantitative phytochemical constituents of Trametes polyzona was also assessed. Moreover, antimicrobial effect and preservative potential of the extracts of Trametes polyzona on microbial isolates of tomato and the tomato fruits were assessed respectively. The proximate composition of the fresh and preserved tomato fruits were further evaluated and compared after storage. Result obtained from the microbial analysis revealed that Staphylococcus aureus, Bacillus spp, Escherichia coli, Klebsiella spp, Lactobacillus spp, Shigella spp, Pseudomonas spp, Micrococcus spp, Rhizopus stolonifera, Aspergillus niger, A.terreus, A. flavus, and Fusarium spp were found in the spoilt tomato fruits. Qualitative phytochemical screening showed saponin, tannin, phytate, flavonoid, terpenoid, total phenol, and oxalate available in Trametes polyzona extracts, while anthraquinone and phlobatannin were absent. There were variations in the quantity of the phytochemicals present in each extract with values ranging from (0.03 to 9.61mg/g). N-hexane extract of showed inhibitory effect on all the bacterial isolates with zones of inhibition ranging from (2.04 to 27.00mm).
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Mansur, Ahmad, Rudi Prasetyo Ardi, and Nina Mistriani. "Optimalisasi Pengawetan Kurma Tomat Menjadi Serbuk Ekstrak Minuman Guna Meningkatkan Daya Simpan Pangan Nabati." bionature 23, no. 2 (October 27, 2022): 107. http://dx.doi.org/10.35580/bionature.v23i2.37359.
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Abstract. This research was conducted with a quantitative approach and aims to determine which tomato dates will be used as a basic ingredient in the manufacture of extract drinks. The use of this tomato analyzes the tolerance level of tomatoes to exposure to sugar derivatives (glucose and lactose) on shelf life as processed vegetable foods. Analyzing the antioxidant levels of tomato date extract based on storage time. Analyzing the effect of storage time on the organoleptic quality of tomato date extract. Analyzing the tolerance level of tomato date extract to exposure to sugar derivatives (glucose and lactose) and their impact on organoleptic quality. The results showed that the comparison of tomato date extract powder with various treatments had an effect on the parameters tested, including increasing antioxidants and reducing microbial levels and was also favored by research respondents when organoleptic testing was carried out. It can be concluded that the storage time of tomato date extract powder will increase antioxidant levels and will make the total microbial activity relatively decreased.Keywords: Dates Preservation, Beverage Extract, Shelf Life, Vegetable Food.
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Moo-Koh, Felicia Amalia, Jairo Cristóbal-Alejo, José María Tun-Suárez, Irma Leticia Medina-Baizabal, Alejandra Anahi Arjona-Cruz, and Marcela Gamboa-Angulo. "Activity of Aqueous Extracts from Native Plants of the Yucatan Peninsula against Fungal Pathogens of Tomato In Vitro and from Croton chichenensis against Corynespora cassiicola on Tomato." Plants 11, no. 21 (October 24, 2022): 2821. http://dx.doi.org/10.3390/plants11212821.
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Plant extracts are a valuable alternative to control pathogens of horticultural crops. In the present study, four species of pathogenic fungi were isolated from leaf spots on Solanum lycopersicum and identified by traditional and molecular techniques as Alternaria alternata ITC24, Corynespora cassiicola ITC23, Curvularia lunata ITC22, and Fusarium equiseti ITC32. When 11 aqueous extracts from eight native plants of the Yucatan Peninsula were tested against the four fungi in vitro, the extract from Croton chichenensis roots was most active, inhibiting mycelial growth (79–100%), sporulation (100%), and conidial germination (71–100%) at 3% (w/v). A logarithmic–diagrammatic scale of the pathosystem C. cassiicola–S. lycopersicum was established and used to assess disease severity on inoculated tomato plants in a greenhouse after treatment with the aqueous extract from C. chichenensis roots at 12% (w/v). After 21 days, the disease severity was 57% lower than on the control without extract applied. This dose of the extract was not phytotoxic to tomato leaves and was compatible with the beneficial organisms Bacillus subtilis CBCK47 and Trichodema asperellum Ta13-17. The antifungal efficacy of C. chichenensis is highly promising for incorporation into integrated disease management of tomato crops.
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Ghazal, Hamed N., Ayyad W. Al-Shahwany, and Firas T. Al–Dulaimy. "Control of Gray Mold on Tomato plants by Spraying Piper nigrum and Urtica dioica Extracts under Greenhouse Condition." Iraqi Journal of Science 60, no. 5 (May 26, 2019): 961–71. http://dx.doi.org/10.24996/ijs.2019.60.5.4.
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Field experimented were examined the effects of Piper nigrum and Urtica dioica extracts on the gray mold disease in tomato that caused by Botrytis cinerea. To evaluate the inducing resistance of these extracts, many treatments were sprayed on tomato leaves, including methanolic and aquatic extracts, Silver nano particles biosynthesis (AgNPs) and water as (control).
The results indicated that the resistance of tomato plants was increased when tomato plant sprayed first with Methanolic P. nigrum extracts and after 4 hours sprayed with B. cinerea. Also, spraying with methanolic and aquatic AgNPs P. nigrum extract were reduced gray mold disease. These results were showed that P. nigrum AgNPs treatment reduced the gray mold of tomato leaves because of the activities of total phenolic compounds which was infected with Botrytis cinerea.
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Barroroh, Umul, and Umul Aiman. "Pengaruh Macam dan Konsentrasi Ekstrak Tomat Terhadap Pertumbuhan Anggrek Cattleya Secara In Vitro." PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) 1, no. 2 (April 9, 2021): 79–83. http://dx.doi.org/10.18196/pt.v1i2.3122.
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The research was aimed to observe the influence of kinds and dosage of tomato extract on growth of orchid Cattleya planlet in the Murashige and Skoog media. The experiment was arranged in a completely random design (2 x 3) + 1 control with three replications. The first factor was maturity of tomato consisted of 2 levels i.e riped and green tomato. The second factor was dosage of tomato extract consisted of 100 gram/liter, 150 gram/liter, 200 gram/liter, and with no tomato extract as control. Result of the research indicated that application of 100 g/liter of ripening tomato extract gave the better growth of Cattleya orchid than the other treatments.
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Babarinde, Grace O., Gabriel O. Adegoke, Rahman Akinoso, and R. Adekanye Bosede. "Quality characteristics of stored tomato fruit treated with two formulations of African black pepper." Revista Brasileira de Gestão Ambiental e Sustentabilidade 5, no. 9 (2018): 249–59. http://dx.doi.org/10.21438/rbgas.050916.
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Tomato Solanum lycopersicum L. (Solanales: Solanaceae) is highly perishable and requires postharvest treatment to extend its shelf life. Use of synthetic chemicals to control post-harvest loss in tomato has adverse effect on health and there is need to explore natural alternatives to chemical. Two formulations of African black pepper Piper guineense Schumach. (Piperales: Piperaceae), aqueous extract and essential oil, were evaluated as preservatives for Roma type tomato fruit. Tomato fruits were treated with different concentrations of aqueous extracts and undiluted essential oil and stored under refrigeration condition. Samples were taken at 5-days interval and analyzed for weight loss, total soluble solids and ascorbic acid. Total Viable Count (TVC) and total mould count (TMC) were determined. Chemical composition of essential oil was identified using gas chromatography-mass spectrometer. Percent weight loss (PWL) in aqueous extract-treated tomato (0.0%-0.68%) was lower than the control (0.3%-19.97%). The total soluble solid (brix) of samples in untreated fruit was lower than fruit treated with higher of P. guineense. Ascorbic acid contents were higher in aqueous extract-treated samples than the control. Essential oil-treated fruit had lower physiological weight loss TVC and TMC than the control. Twelve compounds were identified in P. guineense essential oil, the most of which were b-sesquiphellandrene (23.7%). The P. guineense aqueous extract or essential oil is recommended as a bio-rational preservative for postharvest storage of tomato.
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Miklavčič Višnjevec, Ana, Paul W. Baker, Kelly Peeters, Matthew Schwarzkopf, Dominik Krienke, and Adam Charlton. "HPLC-DAD-qTOF Compositional Analysis of the Phenolic Compounds Present in Crude Tomato Protein Extracts Derived from Food Processing." Molecules 26, no. 21 (October 23, 2021): 6403. http://dx.doi.org/10.3390/molecules26216403.
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The conversion of raw fruits and vegetables, including tomatoes into processed food products creates side streams of residues that can place a burden on the environment. However, these processed residues are still rich in bioactive compounds and in an effort to valorize these materials in tomato by-product streams, the main aim of this study is to extract proteins and identify the main phenolic compounds present in tomato pomace (TP), peel and skins (TPS) by HPLC-DAD-ESI-QTOF. Forty different phenolic compounds were identified in the different tomato extracts, encompassing different groups of phenolic compounds, including derivatives of simple phenolic acid derivatives, hydroxycinnamoylquinic acid, flavones, flavonones, flavonol, and dihydrochalcone. In the crude protein extract (TPE) derived from tomatoes, most of these compounds were still present, confirming that valuable phenolic compounds were not degraded during food processing of these co-product streams. Moreover, phenolic compounds present in the tomato protein crude extract could provide a valuable contribution to the required daily intake of phenolics that are usually supplied by consuming fresh vegetables and fruits.
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Dasrul, Dasrul, Cut Nila Thasmi, Triva Murtina Lubis, Awaluddin Awaluddin, Winaruddin Winaruddin, Rasmaidar Rasmaidar, and Yola Alifa. "THE POTENTIAL OF TOMATO EXTRACT (Lycopersicum esculentum L.) IN INCREASING THE SERTOLI CELLS AND SPERMATOGENIC CELLS COUNT OF THE CONTRALATERAL TESTICULAR SEMINIFEROUS TUBULES OF RATS (Rattus norvegicus) THAT HAVE TESTICULAR TORSION." Jurnal Kedokteran Hewan - Indonesian Journal of Veterinary Sciences 15, no. 3 (September 3, 2021): 76–83. http://dx.doi.org/10.21157/j.ked.hewan.v15i3.20720.
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The purpose of this study was to analyze the potential of tomato extract (Lycopersicum esculentum L.) in increasing the Sertoli and spermatogenic cells count of the contralateral testis in white rats (Rattus novergicus) with unilateral torsion. A total of 24 male Wistar white rats, aged 3-4 months old with a weight of 180-200 g were used in this study. The rat samples were randomly divided into 4 treatment groups: Group 1 as a negative control (NC) which consisted of rats without testicular torsion and given tomato extract; Group 2 as a positive control (PC) which consisted of rats with unilateral testicular torsion 720° for 6 hours without given tomato extract; Group 3 as treatment 1 (T1) consisted of rats that were subjected to unilateral testicular torsion 720o for 6 hours and were given tomato extract at a dose of 100 mg/kg BW/day; and Group 4 as treatment 2 (T2) consisted of rats that were subjected to unilateral testicular torsion 720° for 6 hours and were given tomato extract at a dose of 200 mg/kg BW/day. Each group consisted of six rats. Tomato extract was administered orally for 30 days. The observations of the number of Sertoli cells and spermatogenic cells (spermatogonia cells, spermatocytes, and spermatids) were carried out histologically with Hematoxylin-Eosin (HE) staining and the slides were examined with a light microscope. The data obtained was analyzed by ANOVA and continued with Duncan's test. The results showed that the administration of tomato extract significantly increased (P0.05) the number of Sertoli cells and spermatogenic cells of the contralateral testicular seminiferous tubule. Giving tomato extract 100 mg/kg BW/day resulted in an increase in the number of Sertoli cells and better spermatogenic cells than tomato extract 200 mg/kg BW/day. In conclusion the administration of tomato extract after detorsion can increase the number of Sertoli cells and spermatogenic cells of the contralateral testicular seminiferous tubules in white rats subjected to unilateral torsion of 720° for 6 hours
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Adler, Michael J., and Carlene A. Chase. "Comparison of the Allelopathic Potential of Leguminous Summer Cover Crops: Cowpea, Sunn Hemp, and Velvetbean." HortScience 42, no. 2 (April 2007): 289–93. http://dx.doi.org/10.21273/hortsci.42.2.289.
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The phytotoxicity of aqueous foliar extracts and ground dried residues of sunn hemp (Crotalaria juncea L.), cowpea [Vigna unguiculata (L.) Walp. cv. Iron Clay], and velvetbean [Mucuna deeringiana (Bort) Merr.] to crop and weed germination and growth was evaluated to compare the allelopathic potential of the cover crops. By 14 days after treatment (DAT), goosegrass [Eleusine indica (L.) Gaertn.] germination with 5% aqueous extracts of all cover crops (w/v fresh weight basis) was similar and greater than 75% of control. However, with the 10% extracts, goosegrass germination was lowest with cowpea extract, intermediate with velvetbean extract, and highest with sunn hemp extract. Livid amaranth (Amaranthus lividus L.) germination declined to ≈50% with cowpea and sunn hemp extracts and even lower to 22% with velvetbean extract. The suppression of livid amaranth germination was greater with the 10% extracts than the 5% extracts. Bell pepper (Capsicum annuum L.) germination was unaffected by velvetbean extract, inhibited more by the 5% cowpea extract than the 10% extract, and was also sensitive to the 10% sunn hemp extract. All cover crop extracts resulted in an initial delay in tomato (Lycopersicon esculentum Mill.) germination, but by 14 DAT, inhibition of germination was apparent only with cowpea extract. The phytotoxicity of ground dried residues of the three cover crops on germination, plant height, and dry weight of goosegrass, smooth amaranth (A. hybridus L.), bell pepper, and tomato was evaluated in greenhouse studies. Goosegrass germination was inhibited in a similar manner by residues of the three cover crops to 80% or less of control. Smooth amaranth germination, plant height, and dry biomass were more sensitive to sunn hemp residues than to cowpea and velvetbean residues. Bell pepper germination, plant height, and dry weight were greater than 90% of control except for dry weight with cowpea residue, which was only 78% of control. The greatest effect of cover crop residue on tomato occurred with dry weight, because dry weights with cowpea and sunn hemp were only 76% and 69% of control, respectively, and lower than with velvetbean. There was more evidence of cover crop phytotoxicity with the weed species than with the crop species and cowpea extracts and residue affected all species more consistently than those of sunn hemp and velvetbean.
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Jang, Hwajin, Sang Tae Kim, and Mee Kyung Sang. "Suppressive Effect of Bioactive Extracts of Bacillus sp. H8-1 and Bacillus sp. K203 on Tomato Wilt Caused by Clavibacter michiganensis subsp. michiganensis." Microorganisms 10, no. 2 (February 9, 2022): 403. http://dx.doi.org/10.3390/microorganisms10020403.
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Tomatoes are cultivated worldwide, and are economically important. Clavibacter michiganensis subsp. michiganensis (Cmm) is a pathogen that causes canker and wilting in tomatoes, resulting in serious damage to tomato plants. We aimed to control Cmm proliferation using substances produced by useful microorganisms. The water extracts of strains H8-1 and K203 inhibited wilting caused by Cmm and slowed the pathogenic colonization in tomato plants. The relative expressions of celA, celB, pat1, and pelA of Cmm treated with the bacterial water extracts were reduced by 0.41-, 0.01-, 0.15-, and 0.14-fold for H8-1, respectively, and 0.45-, 0.02-, 0.13-, and 0.13-fold for K203, respectively, compared to controls at 72 h after treatments. In tomato plants inoculated with Cmm, when water extracts of H8-1 and K203 were treated, relative expression of ACO encoding 1-aminocyclopropane-1-carboxylic acid oxidase was suppressed by 0.26- and 0.23-fold, respectively, while PR1a was increased by 1.94- and 2.94-fold, respectively; PI2 expression was increased by 3.27-fold in water extract of H8-1-treated plants. As antioxidant enzymes of plants inoculated with Cmm, peroxidase and glutathione peroxidase levels were increased in K203-water-extract-treated plants, and catalase was increased in the case of the H8-1 water extract at 10 days after inoculation. In terms of soil enzyme activity, each water extract tended to increase urease activity and microbial diversity; in addition, K203 water extract increased plant growth. Thus, H8-1 and K203 water extracts can be used as potential biocontrol agents against Cmm.
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Abo-Elyousr, Kamal A. M., Esmat F. Ali, and Nashwa M. A. Sallam. "Alternative Control of Tomato Wilt Using the Aqueous Extract of Calotropis procera." Horticulturae 8, no. 3 (February 23, 2022): 197. http://dx.doi.org/10.3390/horticulturae8030197.
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Calotropis procera (Aiton) Dryand (commonly known as the apple of sodom, calotrope, and giant milkweed) is an evergreen, perennial shrub of the Apocynaceae family, and is mainly found in arid and semi-arid regions. Previous studies have established the toxic effects of Calotropis procera (C. procera) (Aiton). Its extract is used as one of the vital alternatives to pesticides due to its effective impacts on several pathogens and to combat insect pests that cause severe damage to several crops, but so far, its effects on combating Fusarium oxysporum f. sp. lycopersici (FOL) have not yet been evaluated. Therefore, the current study focuses on evaluating the effects of the aqueous extract of this plant on FOL by studying physicochemical indicators. In Saudi Arabia and many other countries, such disease is considered as one of the critical factors affecting tomato growth and production. For the control of Fusarium wilt disease (Fwd), many strategies have been developed, but are limited in their use. Ten isolates of the pathogens were obtained from diseased tomato plants. These isolates were able to exhibit symptoms of tomato wilt, and they varied in their virulence. Isolate No. 5 caused the highest severity of the disease (73%). According to these results, we used this isolate in the following experiment, which was identified by ITS sequences as F. oxysporum f. sp. lycopersici. Following intensive screening studies, we selected aqueous plant extract of C. procera to study its effectiveness against Fwd of tomato plants and their antifungal activity or induce systemic resistance in plants. All concentrations of C. procera extracts suppressed growth of the pathogen. The highest reduction of mycelia growth was obtained by aqueous extract at 15%, it reduced the pathogen growth to 70.2%, relative to the control. In greenhouse conditions, the aqueous C. procera extract at 5, 10, and 15% significantly reduced Fwd of the tomato compared to the infected control (52.01, 69.86, and 83.6%, respectively). The use of aqueous C. procera extract at 5, 10, and 15% significantly enhanced the fresh and dry weight of tomato plants (g plant−1) compared to inoculated plants (for fresh weight: 50, 66.6, and 86.6 and for dry weight: 60, 100, and 120%, respectively). Total phenols and flavonoids as well as antioxidant enzymes were increased in inoculated or non-inoculated tomato plants after being treated with aqueous extracts of C. procera.
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Firmasari, Firmasari, Ni Ketut Sumarni, Ruslan, and Hardi Ys. "PERSEN DEGRADASI EKSTRAK ETANOL KELOPAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SELAMA PENYIMPANAN THE PERCENTAGE OF ETHANOL EXTRACTS OF ROSELLE PETALS (Hibiscus sabdariffa L.) DURING STORAGE." KOVALEN: Jurnal Riset Kimia 5, no. 2 (August 31, 2019): 132–38. http://dx.doi.org/10.22487/kovalen.2019.v5.i2.9970.
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Ethanol extract of roselle petals (Hibiscus sabdariffa L.) is more stable in low pH than in high pH. The research aims to monitor and determine the effect of ratio content in ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and the pH effect on the percentage of ethanol extract degradation during storage. Two independent variables implemented in this study, are ratio content of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce and pH. Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce with ratio content 0,5:1; 1:1; and 1:0 (w/w) and adjusted to pH 2, pH 3, pH 4, pH 5 and pH 6, respectively were investigated. The absorbance measurement of Ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce was depend on each treatment, then analyzed using completely randomized design. The percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) degradation in tomato sauce decreased in ratio content 1:0 (w/w) at pH 2 with percentage content of degradation is 30.09%. Furthermore, after 10 days of storage, the highest percentage of ethanol extract of roselle petals (Hibiscus sabdariffa L.) in tomato sauce degradation is 93.33% with ratio content is 0.5:1 at pH 6 and the lowest is 30.09% with ratio content 1:0 at pH 2.
Keywords: Roselle petals, Ethanol Extract, Tomato Sauce, Percentage of Degradation
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Palomo, Ivan, Anibal Concha-Meyer, Mariane Lutz, Macarena Said, Bárbara Sáez, Adriana Vásquez, and Eduardo Fuentes. "Chemical Characterization and Antiplatelet Potential of Bioactive Extract from Tomato Pomace (Byproduct of Tomato Paste)." Nutrients 11, no. 2 (February 22, 2019): 456. http://dx.doi.org/10.3390/nu11020456.
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We examined the ability of tomato pomace extract (by-product) to affect platelet aggregation in healthy humans (clinical pilot study). In phase 1 the tolerance of participants (n = 15; 5 per dose level) ingesting tomato pomace extract across three dose levels (1, 2.5, and 10 g) was evaluated. Phase 2 was a single-blind, placebo-controlled, parallel design human (male, n = 99; 33 per group) pilot intervention trial investigating the acute and repeated dose effects (5 days) of different doses of tomato pomace extract (1 g, 2.5 g or placebo) on platelet aggregation ex vivo. Various flavonoids (coumaric acid, floridzin, floretin, procyanidin B2, luteolin-7-O-glucoside, kaempferol, and quercitin) and nucleosides (adenosine, inosine, and guanosine) were identified in the tomato pomace extract. The clinical study showed that the daily consumption of 1 g of aqueous extract of tomato pomace for 5 days exerted an inhibitory activity on platelet aggregation.
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Moncada, Alessandra, Filippo Vetrano, Alessandro Esposito, and Alessandro Miceli. "Effects of NAA and Ecklonia maxima Extracts on Lettuce and Tomato Transplant Production." Agronomy 12, no. 2 (January 27, 2022): 329. http://dx.doi.org/10.3390/agronomy12020329.
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Ecklonia maxima and the commercial biostimulants produced from it contain various plant growth regulators that are responsible for the growth stimulation recorded in many crops. Auxins are one of the major plant growth regulators contained in E. maxima extracts. The aim of this research was to evaluate the growth-promoting effect of a seaweed extract from E. maxima on lettuce and tomato transplant production under nursery conditions, and to compare the effect of this extract with an equal concentration of synthetic auxin. Two doses of natural or synthetic exogenous auxins (50 or 100 μg L−1) were supplied to the substrate through the irrigation water with an ebb and flow system, 4, 11, and 18 days after sowing. A commercial biostimulant based on E. maxima extract was used as a source of natural auxin, while 1-naphthaleneacetic acid (NAA) was used as a synthetic auxin. Seedlings supplied only with water were used as a control. Tomato seedlings treated with 100 μg L−1 of natural auxins from E. maxima extract produced the tallest plants (+22%), with a higher leaf number (+12%), a wider leaf area (+44%), and a stronger stem (+12%), whereas lettuce seedling growth was promoted by all the treatments, but with a greater effect with increasing auxin supplementation and when using E. maxima extract, compared to NAA. The results showed that the supplementation of exogenous synthetic auxin (NAA), or an E. maxima extract containing natural auxins, can have a growth-promoting effect on lettuce and tomato seedlings. This effect was more evident on lettuce than tomato. The biostimulant produced from E. maxima extracts improved seedling quality and promoted shoot and root growth more than the NAA used as a synthetic source of auxins.
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Barus, Bunga Rimta, Vera Estevania Kaban, Jessi Octavia Aitonang, and Syukur Berkat Waruwu. "PERBANDINGAN FORMULASI EKSTRAK E PERBANDINGAN FORMULASI EKSTRAK ETANOL BUAH TERONG BELANDA SEBAGAI PEWARNA PADA BLUSH ON DALAM BENTUK SEDIAAN COMPACT." JURNAL FARMASIMED (JFM) 3, no. 1 (October 30, 2020): 6–10. http://dx.doi.org/10.35451/jfm.v3i1.450.
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Blush on is a cosmetic preparation for coloring the cheeks with an artistic touch so that it can increase the attractive impression in makeup (Nurhayati, 2016). Many blush-on preparations come from chemicals, which can cause spotty, black spots and can trigger skin cancer. One alternative that can be used is by making a blush on natural ingredients, namely Tree Tomato. The purpose of this study was to find out the Ethanol Extract of the Tree Tomato Fruit was made as a blush on coloring in compact preparations.The sample used in this study was Tree Tomato, red and had a soft texture taken from the cultivation of Tree tomato in the village of Brastagi, Karo District, North Sumatra Province. Making extracts is done by maceration and the process of making blush. After that evaluation of blush on preparation is carried out. Evaluation test results of blush on ethanol extract of tree tomato fruit include. The results of homogeneity tests are declared homogeneous, pH test averages 6.4, irritation test results stated not to irritate, the test results of the three formulations can be concluded that the three most preferred form of blush on panelists are formulations with a concentration of 15%, because they have a comfortable level of application, clear colors and very soft.Ethanol extract of Tree Tomato fruit can be made as a dye in compact preparations.
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Herlina, Herlina, Triana Lindriati, and Prahasbynar Prahasbynar. "Penggunaan Ekstrak Kasar Polisakarida Larut Air dari Biji Buah Durian (Durio zibethinus Murr.) pada Pembuatan Saos Tomat (The Use of Crude Extract Water Soluble Polysaccharide from Durian (Durio Zibethinus Muur.) Seeds in Tomato Sauce Processing)." Jurnal Agritech 36, no. 03 (December 21, 2016): 286. http://dx.doi.org/10.22146/agritech.16597.
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Tomato sauce is one of the diversification of tomato products that could increase the added value and shelf life of tomatoes. Sauce made from tomato has a high water content (94 %) resulting a watery sauce product. The purpose of this study was to determine the effect of crude extract Water Soluble Polysaccharide (WSP) from durian seeds on physical, chemical, and organoleptic as characteristics oftomato sauce. The use of crude extract WSP from durian seeds is expected to increase the viscosity of the sauce. The experimental design used in this study was a non factorial randomized complete block design with three replications. Parameters measured were viscosity, color (Hue and Chroma), total dissolved solids, pH, vitamin C, and organoleptic (panelist preferences) in addition to the effectiveness test to determine the best treatment. The results show that the tomato sauce composition significantly affect the viscosity, pH, color intensity, and total dissolved solids, while no significant effect on the angle of color and vitamin C of tomato sauce. The effectiveness test showed that the panelists preferred the P4 tomato sauce (use crude extract WSP from seeds fruit of durian 0.8 %) with fondness value color of 2.68; aroma of 3.08; flavor of 3.48; viscosity of 3.44; overall liking of 3.56. The value of viscosity, hue, chroma, total dissolved solids, pH, vitamin C were 39.64 centipoise; 38,34°; 20.16; 35° Brix; 4.92; and 4.95 mg/g, respectively. ABSTRAKSaos tomat merupakan salah satu diversifikasi produk olahan buah tomat yang dapat meningkatkan nilai tambah dan umur simpan buah tomat. Saos yang berbahan dasar tomat, memiliki kandungan air yang tinggi (94 %) sehingga menghasilkan saos yang encer. Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan ekstrak kasar Polisakarida Larut Air (PLA) dari biji buah durian terhadap sifat fisiko kimia dan organoleptik saos tomat. Penggunaan ekstrak kasar PLA dari biji buah durian diharapkan dapat meningkatkan viskositas saos tomat. Rancangan penelitian yang digunakan adalah rancangan acak kelompok faktor tunggal dengan tiga kali ulangan. Parameter yang diamati adalah viskositas, warna (Hue dan Chroma), total padatan terlarut, pH, kadar vitamin C, dan uji organoleptik (kesukaan panelis) yang dilanjut dengan uji efektivitas untuk menentukan perlakuan terbaik. Hasil penelitian menunjukkan bahwa komposisi saos tomat berpengaruh nyata terhadap viskositas, pH, intensitas warna, dan total padatan terlarut, tetapi tidak berpengaruh nyata terhadap sudut warna dan kadar vitamin C saos tomat. Uji efektivitas menunjukkan bahwa saos tomat yang disukai panelis adalah perlakuan P4 (penggunaan ekstrak kasar PLA dari biji buah durian sebesar 0,8 %) dengan nilai kesukaan warna sebesar 2,68; kesukaan aroma sebesar 3,08; kesukaan rasa sebesar 3,48; kesukaan kekentalan sebesar 3,44; kesukaan keseluruhan sebesar 3,56, dan nilai viskositas, hue, chroma, total padatan terlarut, pH, vitamin C berturut-turut adalah 39,64 centipoise; 38,34°; 20,16; 35° Brix; 4,92; dan 4,95 mg/g.Kata kunci: Ekstrak kasar PLA biji buah durian; uji efektifitas; saos tomat; viskositas
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Deberdt, Péninna, Benjamin Perrin, Régine Coranson-Beaudu, Pierre-François Duyck, and Emmanuel Wicker. "Effect of Allium fistulosum Extract on Ralstonia solanacearum Populations and Tomato Bacterial Wilt." Plant Disease 96, no. 5 (May 2012): 687–92. http://dx.doi.org/10.1094/pdis-07-11-0601.
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To control bacterial wilt (Ralstonia solanacearum, phylotype IIB/4NPB), the antimicrobial effect of Allium fistulosum aqueous extract was assessed as a preplant soil treatment. Three concentrations of extract (100, 50, and 25%, 1:1 [wt/vol]) were evaluated by in vitro inhibition assay and in vivo experiments in a growth chamber. In vitro, A. fistulosum (100 and 50%) suppressed growth of R. solanacearum. Preplant treatment of the soil with A. fistulosum extract significantly reduced the R. solanacearum populations. No pathogen was detected in the soil after treatment with 100% concentrated extract from the third day after application until the end of the experiment. A. fistulosum also significantly reduced the incidence of tomato bacterial wilt. In the untreated control, the disease affected 61% of the plants whereas, with 100 and 50% extracts, only 6 and 14% of the plants, respectively, were affected. These results suggest that A. fistulosum extracts could be used in biocontrol-based management strategies for bacterial wilt of tomato.
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Frederiksen, Hanne, Salka E. Rasmussen, Malene Schrøder, Anette Bysted, Jette Jakobsen, Henrik Frandsen, Gitte Ravn-Haren, and Alicja Mortensen. "Dietary supplementation with an extract of lycopene-rich tomatoes does not reduce atherosclerosis in Watanabe Heritable Hyperlipidemic rabbits." British Journal of Nutrition 97, no. 1 (January 2007): 6–10. http://dx.doi.org/10.1017/s0007114507210153.
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Tomatoes are rich in lycopene and other carotenoids which have shown beneficial effects on CVD in epidemiological and intervention studies. In the present study the effect of an extract of lycopene-rich tomatoes, Lyc-O-Mato® on atherosclerosis was studied in Watanabe Heritable Hyperlipidemic rabbits. The rabbits were fed a control diet, a control diet supplemented with the tomato extract or a control diet supplemented with a mixture of plant oils for 16 weeks. Lycopene was detected only in plasma of rabbits receiving tomato extract. The tomato extract had no effect on cholesterol and triacylglycerol levels measured in total plasma, lipoprotein fractions and on aortic atherosclerosis evaluated biochemically and by microscopy. Oxidation of lipids in unfractionated plasma also was unaffected by the intake of tomato extract. In conclusion, the tomato extract increased plasma levels of lycopene in rabbits, but had no effect on hypercholesterolaemia, oxidation of plasma lipids or aortic atherosclerosis.
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Hill, Erin C., and Mathieu Ngouajio. "(420) Germination and Radicle Elongation Responses of Seven Vegetable Crops to Aqueous Extracts of Hairy Vetch (Vicia villosa) and Cowpea (Vigna unguiculata)." HortScience 40, no. 4 (July 2005): 1021D—1021. http://dx.doi.org/10.21273/hortsci.40.4.1021d.
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Hairy vetch (Vicia villosa Roth) (HV) and cowpea [Vigna unguiculata (L.) Walp.] (CP) are two leguminous cover crops used in vegetable production systems. The residues of both species have been shown to suppress weeds via allelopathic interactions; however, they may also carry a risk of crop injury. A laboratory experiment was designed to study the dose response of carrot, sweet corn, cucumber, lettuce, onion, pepper, and tomato germination and radicle elongation to the aqueous extracts of both HV and CP. Aqueous extracts of fresh, whole plants were lyophilized to obtain a dry powder. Treatments of 0.00, 0.25, 0.50, 1.00, 2.00, 4.00, and 8.00 g dry extract/L of distilled water were applied to 10 seeds on filter paper in petri dishes. The petri dishes were then sealed and placed in the dark at 21 °C for 4 to 7 days, depending on the species germination. After the incubation period, germination rates and radicle lengths were recorded. Each treatment had 4 replications and the full experiment was executed twice. Pepper germination was reduced by increasing concentrations of HV extract; however, all other crops were not affected by HV or CP extracts. The HV extract had a significant effect on radicle elongation in carrot, corn, cucumber, lettuce, onion, and tomato. Inhibition of radical growth at 8 g·L-1 ranged from 42% in cucumber to as high as 81% in carrot. The CP extract had a negative effect on the radicle elongation of carrot, corn, lettuce, and tomato. Inhibition at 8 g·L-1 ranged from 42% in carrot to 67% in tomato. This study shows that both HV and CP extracts hold the potential to negatively affect the listed crops. Therefore, studies need to be done on the persistence of these effects in the field to maximize weed control while avoiding crop injury.
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Islam, Nadia, and Nargis Akhter. "Comparative Study of Protective Effect of Tomato Juice and N-Hexane Extract of Tomato on Blood Lipids and Oxidative Stress in Cholesterol-Fed Rats." Anwer Khan Modern Medical College Journal 8, no. 1 (February 19, 2017): 30–37. http://dx.doi.org/10.3329/akmmcj.v8i1.31655.
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Background: Hyperlipidemia is a well-established risk factor in pathogenesis of atherosclerosis and atherosclerosisassociated conditions by enhancing oxidative stress. Dietary supplementation of tomato which is enriched with antioxidants especially like lycopene may therefore be effective in reducing oxidative stress during hyperlipidemic condition. The study evaluates and compares the protective effect of tomato juice and n-Hexane extract of tomato on oxidative stress in hyperlipidemic rats.Methodology: This experimental study was carried out among 42 rats divided in 7 groups. Rats were treated with 0.5% cholesterol (suspension of cholesterol powder in soybean oil) at a dose of 50 mg/ ml once daily through intragastric tube for 8 weeks. In other two groups of rats tomato juice (1 mg/kg) or n-Hexane extract of tomato (1 mg/kg) with 0.5% cholesterol were given orally once daily through intragastric tube for 8 weeks. Serum lipid profile, body weight, plasma malondialdehide (MDA) and erythrocyte reduced glutathione(GSH) levels were measured after 8 weeks in all the groups.Results: Administration of cholesterol caused significant increase (p<0.001) in serum cholesterol, serum triglyceride (TG), serum low-density lipoprotien cholesterol (LDL-C)and significant decrease (p<0.001) in serum high-density lipoprotein cholesterol (HDL-C) which were associated with significant increment (p<0.001) in plasma MDA levels and depletion(p<0.001) in erythrocyte GSH levels. Concomitant treatment of tomato juice or n-Hexane extract of tomato with cholesterol reduced (p<0.001) serum cholesterol, serum LDL-C, body weight and increased serum HDL-C level in cholesterol plus tomato juice treated group (p<0.001) and in cholesterol plus n-Hexane extract of tomato treated group (p<0.05).But serum triglyceride was decreased(p<.05) only in cholesterol plus tomato juice treated group. Simultaneous treatment of tomato juice or n-Hexane extract of tomato with cholesterol decreased (p<0.001) plasma MDA level and increased (p<0.001) erythrocyte GSH level. However, significant differences were noted between the effect of tomato juice and n-Hexane extract of tomato on serum cholesterol (p<0.001), serum triglyceride (p<.05), serum LDL-C (p<0.001), serum HDL-C level(p<0.01) and plasma MDA(p<0.001) and erythrocyte GSH (p<0.001) levels. But no significant difference was noted on body weight.Conclusion: It may be concluded that both tomato juice and n-Hexane extract of tomato offered protection against hyperlipidemia and oxidative stress, but the protection afforded by tomato juice was superior to n-Hexane extract of tomato.Anwer Khan Modern Medical College Journal Vol. 8, No. 1: Jan 2017, P 30-37
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AINI, NUR, SUTARNO SUTARNO, and ARI SUSILOWATI. "Reduction of exoprotease production in Aeromonas hydrophila by tomato fruits extract (Lycopersicon esculentum Mill.)." Biofarmasi Journal of Natural Product Biochemistry 4, no. 2 (August 17, 2006): 55–64. http://dx.doi.org/10.13057/biofar/f040203.
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Aeromonas hydrophila is pathogenic bacteria in fish. One of its virulence factors is exoprotease. The production of exoprotease is controlled by a quorum sensing system. Quorum sensing is an intercellular communication of bacteria that using a signal molecule of C4-HSL. The exoprotease production of A. hydrophila can be blocked by using quorum sensing inhibitors. The inhibition of quorum sensing of A. hydrophila can be conducted by C4-HSL analogs molecules. In this research, the molecules that predicted as quorum sensing inhibitors and act as C4-HSL analog molecules were furanone from tomato fruits. The inhibition of quorum sensing of A. hydrophila could be shown by a reduction of exoprotease production. The aim of this research was to determine the reduction of exoprotease production of A. hydrophila by extracts of n-hexane, ethyl acetate and methanol of tomato fruits with the concentrations of 0%, 2%, 4%, 6% and 8%, respectively. The qualitative exoprotease assay result showed that n-hexane extract of tomato had no effect on growth and exoprotease production of A. hydrophila. As much as 4% of ethyl acetate extract of tomato fruits could inhibit exoprotease production, but affect A. hydrophilla growth. Meanwhile, 4% methanol extract of tomato fruits could inhibit exoprotease production, without affect A. hydrophilla growth. The quantitative exoprotease assay result showed that 4% of methanol extract could inhibit exoprotease production by 71.68% without affect the growth of A. hydrophila.
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Latake, S. B., P. M. Katkar, and V. S. Shinde. "Eco-Friendly Management Of Early Blight Of Tomato Caused By Alternaria Solani." Journal of Plant Disease Sciences 17, no. 1 (August 9, 2022): 73–78. http://dx.doi.org/10.48165/jpds.2022.1714.
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Aqueous plant extract from ten plant species were tested for antifungal activity against Alternaria solani, whichcauses early blight disease in tomato, in vitro and in the field. At 5, 10 and 15% concentrations, all the aqueous plant extracts inhibited mycelial growth of growth of A. solani significantly better than control. Ginger officinale inhibitedA. solani mycelial growth to the greatest extent. It was followed by Azadirchta indica and Allium sativum.Under field conditions, three sprays of aqueous plant extracts at 15-day intervals were found effective in reducing early blight disease intensity in tomato crops. spray The spray of Ginger officinale extract provided the best disease control (54.40%), followed by Azadirchta indica (47.51%) Allium sativum (41.91%) and Ocimum sanctum (41.82%).
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Muhammad, A., Ashiru Umar, A. U Birnin-Yauri, H. Abubakar Sanni, Ige A.R, and C. M Elinge. "Effect of process variables on green synthesis of copper nanoparticles from solanum lycopersicum and Psidium guajava and its antibacterial activities." International Journal of Advanced Chemistry 10, no. 1 (May 15, 2022): 17–23. http://dx.doi.org/10.14419/ijac.v10i1.32045.
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In this study copper nanoparticles were synthesized using extracts from Solanum lycopersicum (Tomato) and Psidium guajava (Guava) fruits. The synthesis process optimized experimental conditions such as temperature, concentration of precursor and amount of fruit extract. The synthesized nanoparticles were characterized using Uv-vis, FTIR, XRD, SEM and EDX techniques. Copper nanoparticles synthesized with tomato and guava extracts had diameters of 52nm and 25nm, respectively. The antibacterial activity of the synthesized nanoparticles was tested using pathogenic bacteria; Escherichia coli and Staphylococcus aureus and their results revealed that copper nanoparticles are promising antibacterial agents. The optimum conditions for the synthesis were 0.05 M, 80 oC and 10cm3 for concentration, temperature and volume of fruit extract, respectively.  Â
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Hazebroek, Jan P., Stephen A. Garrison, and Thomas Gianfagna. "Allelopathic Substances in Asparagus Roots: Extraction, Characterization, and Biological Activity." Journal of the American Society for Horticultural Science 114, no. 1 (January 1989): 152–58. http://dx.doi.org/10.21273/jashs.114.1.152.
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Abstract Aqueous extracts of asparagus (Asparagus officinalis L.) roots inhibited seed germination in tomato and lettuce, but not in cucumber. The extracts reduced hypocotyl growth in lettuce, shoot growth in asparagus, and inhibited radicle elongation in barley, lettuce, and asparagus. Seedling growth in tomato and two cultivars of wheat were not affected. Inhibition was concentration-dependent. Radicle growth in ‘Grand Rapids’ lettuce was sensitive to an extract concentration as low as 0.05 g dry root tissue/100 ml H2O. Asparagus radicles were more sensitive than asparagus shoots. In one experiment, phytotoxicity of crude extract was not altered by autoclaving. Aqueous root extracts of A. racemosis Willd. also inhibited germination and radicle growth in ‘Grand Rapids’ lettuce. A crude extract was purified by solvent partitioning, and charcoal adsorption, cation exchange, and thin-layer chromatography (TLC). A band from the TLC was found to fluoresce under ultraviolet light, react with phenolic-sensitive localization reagents, and inhibit the growth of lettuce and asparagus radicles.
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Aksoy, Hasan Murat, Sahane Funda Arslanoglu, Mohamed Faraj Edbeib, Yilmaz Kaya, and Sevgi Marakli. "Antibacterial activity of Calendula officinalis and Echinacea purpurea extracts against the causal agent of tomatoes’ bacterial canker: Clavibacter michiganensis subsp. michiganensis." Boletin Latinoamericano y del Caribe de Plantas Medicinales y Aromaticas 20, no. 5 (September 30, 2021): 496–502. http://dx.doi.org/10.37360/blacpma.21.20.5.36.
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We aimed to investigate the effects of Calendula officinalis and Echinacea purpurea extracts in terms of growth parameters, antibacterial activity and phenolic profile in tomato infected by Clavibacter michiganensis subsp. michiganensis (CmmT7). A significant difference was observed in E. purpura extract, indicating the highest effects on plant height (27.25 cm), fresh plant weight (28.45 cm), root length (24.42 cm), and root weight (6.74 g) (p<0.05). Moreover, Calendula officinalis and Echinacea purpurea extracts showed significant inhibitory activity against CmmT7 (p<0.05). Among phenolic compounds, the only chlorogenic acid amounts were varied in the tomato seedlings leaves with C. officinalis extract (K3) + CmmT7, E. purpurea extract (E3) + CmmT7 and CmmT7 (p<0.01). Moreover, chlorogenic acid amount was approximately 9 times higher than in CmmT7-treated leaves when compared to control. The results showed that application of the extracts of these plants had a significant influence on bacterial canker and growth parameters.
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Ramírez-Guerra, H. E., F. J. Castillo-Yañez, E. A. Montaño-Cota, S. Ruíz-Cruz, E. Márquez-Ríos, D. F. Canizales-Rodríguez, W. Torres-Arreola, N. Montoya-Camacho, and V. M. Ocaño-Higuera. "Protective Effect of an Edible Tomato Plant Extract/Chitosan Coating on the Quality and Shelf Life of Sierra Fish Fillets." Journal of Chemistry 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/2436045.
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The products of fishing are highly perishable foods. Thus, it is necessary to seek viable alternatives that help to preserve product freshness and quality and to increase its shelf life. One of these alternatives is the use of extracts with antimicrobial activity obtained from plants, such as tomato, which has been observed to present compounds with antimicrobial activity. The objective of this work was to determine the effect of an extract obtained from the tomato plant and incorporated into an edible chitosan coating on the quality and shelf life of the sierra fish fillet stored on ice for 15 days. For the latter, an extract was prepared with dehydrated tomato plants, which was incorporated by immersion alone or in combination with an edible chitosan-based coating in sierra fish fillets. The following treatments were applied: C (Chitosan), TPE (Tomato Plant Extract), TPE-C (TPE-Chitosan), and control (without chitosan and extract). Color, pH, WHC, ATP-related compounds, and K value were monitored during 15 days of storage on ice. Likewise, the total count of mesophiles was determined. The results indicated that treatments C, TPE, and TPE-C were significantly different (p<0.05) from lot control in terms of the concentration of ATP-related compounds, K value, pH, and total mesophilic count. We concluded that application of the extract alone or in combination with chitosan allows for the improvement of the quality and shelf life of the sierra fish fillet.
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Hong, Ji Yeon, Jae-Jun Ban, Qing-Ling Quan, Ji-Eun Eom, Hee Soon Shin, and Jin Ho Chung. "Mixture of Tomato and Lemon Extracts Synergistically Prevents PC12 Cell Death from Oxidative Stress and Improves Hippocampal Neurogenesis in Aged Mice." Foods 11, no. 21 (October 28, 2022): 3418. http://dx.doi.org/10.3390/foods11213418.
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Dietary habits have a great impact on one’s health, especially in cognitive decline. Tomato and lemon contain diverse bioactive compounds and possess various effects, including the enhancement of cognitive function. We observed the protective effect of tomato, lemon extract and the mixture of them on H2O2-induced cytotoxicity of PC12 cells. To measure the in vivo effect in a murine model, each extract was orally administered to forty 1-year-old mice for 6 weeks, and a novel object recognition (NOR) test was performed to observe cognitive function, and hippocampal neurogenesis was observed through a doublecortin (DCX) stain. PC12 cell death by oxidative stress was reduced by pretreating with each extract, and a synergistic reduction was observed in the mixture. Newly generated DCX-positive neurons were synergistically increased in the hippocampus by the mixture. NOR test showed a tendency to significantly improve age-related cognitive dysfunction by consuming the mixture of tomato and lemon. In conclusion, tomato and lemon extracts can reduce cellular oxidative stress and increase NOR, likely due to enhanced neurogenesis, while the mixture of the two showed synergistic anti-oxidative effects and hippocampal neurogenesis.
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Ali, Shahbaz, Yunzhou Li, Inzamam Ul Haq, Waseem Abbas, Muhammad Zeeshan Shabbir, Muhammad Musa Khan, Mehmet Mamay, et al. "The impact of different plant extracts on population suppression of Helicoverpa armigera (Hub.) and tomato (Lycopersicon esculentum Mill) yield under field conditions." PLOS ONE 16, no. 12 (December 1, 2021): e0260470. http://dx.doi.org/10.1371/journal.pone.0260470.
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Helicoverpa armigera (Hub.) is a destructive pest of the tomato (Lycopersicon esculentum Mill) crop in Pakistan. Although insecticides are the primary management strategy used to control H. armigera, most of them are not effective due to considerable toxic residual effects on the fruits. Nonetheless, H. armigera is rapidly evolving resistance against the available pesticides for its management. This situation calls upon the need of alternative management options against the pest. Different plant extracts have been suggested as a viable, environment-friendly option for plant protection with minimal side effects. Furthermore, the plant extracts could also manage the insect species evolving resistance against pesticides. This study evaluated the efficacy of different plant extracts (i.e., Neem seed, turmeric, garlic and marsh pepper) against H. armigera. Furthermore, the impact of the plant extracts on growth and yield of tomato crop was also tested under field conditions. The results revealed that all plant extracts resulted in higher mortality of H. armigera compared to control. Similarly, the highest plant height was observed for the plants treated with the plant extracts compared to untreated plants. Moreover, the highest tomato yield was observed in plants treated with plant extracts, especially with neem seed (21.013 kg/plot) followed by pepper extract (19.25 kg/plot), and garlic extract 18.4 kg/plot) compared to the untreated plants (8.9 kg/plot). It is concluded that plant extracts can be used as eco-friendly approaches for improving tomato yield and resistance management of H. armigera.
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ROSTAM, NUR FAZLEEN SYUHADA, NOR AMIRA IZATI NOR AZMAN, NURUL FAZIHA IBRAHIM, and SUHAIZAN LOB. "STUDY ON AQUEOUS KAFFIR LIME EXTRACT AS TREATMENT AGENT ON FRESH TOMATO FRUITS." Universiti Malaysia Terengganu Journal of Undergraduate Research 2, no. 4 (October 31, 2020): 17–22. http://dx.doi.org/10.46754/umtjur.v2i4.175.
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Tomatoes have a short shelf life thus they pose a big challenge for growers to maintain the quality of tomatoes to increase customer acceptance. In this study, fungi associated with tomato disease symptoms were isolated and the potential of kaffir lime aqueous extract was evaluated in maintaining post-harvest quality of tomatoes. For this purpose, healthy tomatoes were dipped in 10% aqueous kaffir lime extract before evaluating the post-harvest parameters namely weight loss and firmness. A fungus namely Rhizophus stolonifer was isolated from the symptomatic tomatoes. Subsequently, it was confirmed to be pathogenic on healthy tomato fruits with 100% disease severity. Application of aqueous kaffir lime extract showed that tomato fruits dipped in 10% aqueous kaffir lime extract recorded higher weight loss and higher firmness as compared to untreated tomato fruits. The results showed that treatment with this concentration of plant extract did not help to reduce the weight loss, but it retained the firmness of the tomato fruits stored at room temperature at 27+2oC. Higher transpiration process would lead to shrinkage, weight loss, changes in texture and appearance of the fruits. Therefore, this study suggested an increased concentration of aqueous kaffir lime extract as a treatment agent in order to have a better effect in maintaining the quality of tomato fruits.
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Sulastri, Evi, Mohamad Ikram, and Yuliet Yuliet. "Uji Stabilitas Dan Aktivitas Antioksidan Mikroemulsi Likopen Tomat (Solanum lycopersicum L.)." Jurnal Farmasi Galenika (Galenika Journal of Pharmacy) (e-Journal) 3, no. 1 (March 1, 2017): 10–17. http://dx.doi.org/10.22487/j24428744.2017.v3.i1.8134.
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Lycopene is a class of keratonoid that have been proven has antioxidant activity but has limited solubility in water. So as to boost their solubility, in this study conducted in the form of microemulsion formulations. This study aims to get a tomato lycopene extract microemulsion which is stable and has antioxidant effects. The research was initiated to test the antioxidant power of tomato lycopene extract in vitro against DPPH. Tomato lycopene extract microemulsion is formulated based on the optimization of the composition of the base consisting of the VCO as the oil phase, tween 80 as surfactant and glycerin as cosurfactant. Preparations produced were tested for antioxidant activity and their physical and chemical stability testing which include: organoleptic, viscosity, globule size and pH during 28 days of storage. The results showed that tomato lycopene extract formula microemulsion stable composition of tomato lycopene extract 0.3%, VCO 15%, tween 80% and 35% glycerin. The test results obtained physical stability of the microemulsion formula elected tomato lycopene extract has a distinctive scent of aromatic, orange, thick, globule size of <5 μm, viscosity (600, 33 ± 69.29 to 746 cPs ± 8.32), and pH ( 6.27 ± 0.20 to 6.79 ± 0.10). As very strong antioxidant activity with IC50 value of 29.07 ppm.
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Savatovic, Sladjana, Gordana Cetkovic, Jasna Canadanovic-Brunet, and Sonja Djilas. "Utilization of tomato waste as a source of polyphenolic antioxidants." Acta Periodica Technologica, no. 41 (2010): 187–94. http://dx.doi.org/10.2298/apt1041187s.
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This study is concerned with the effects of two extraction procedures (using ultrasonic bath and high performance homogenizer) on the extraction efficiency of polyphenolics present in the tomato waste. The isolation of flavonoid fraction of obtained extracts was performed by solid-phase extraction. The antioxidant activity of flavonoid fractions was determined using different spectrophotometric tests, including reducing power and 2,2- diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assays. The content of total polyphenolics and flavonoids in extract obtained employing homogenizer (E2) was higher than in the extract obtained employing ultrasonic bath (E1), and it was 14.33 mg/g and 7.70 mg/g, respectively. The flavonoid fraction (EF2) of extract E2 showed higher antioxidant activity than flavonoid fraction (EF1) of extract E1. The DPPH free radical scavenging activity of fractions EF1 and EF2, expressed as EC50 value, were 0.78 mg/ml and 0.45 mg/ml, respectively. The obtained results show that tomato wastes can be used as an easily accessible source of antioxidant polyphenolics.
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NOR AZMAN, NOR AMIRA IZATI, NUR FAZLEEN SYUHADA ROSTAM, NURUL FAZIHA IBRAHIM, and SUHAIZAN LOB. "POTENTIAL OF AQUEOUS GINGER EXTRACT AS FRUIT COATING ON TOMATO." Universiti Malaysia Terengganu Journal of Undergraduate Research 2, no. 4 (October 31, 2020): 23–30. http://dx.doi.org/10.46754/umtjur.v2i4.176.
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Soft fleshed tomatoes are easily damaged due to mechanical injuries. Later, the wounded tissue will be exposed to fungal infection thus fasten the deterioration rate and reduce the quality of tomato. The aim of this study was to evaluate the potential aqueous ginger extract to inhibit fungal pathogen that causes tomato wilt and its potential in delaying the weight loss of tomato fruits. For this purpose, in vitro antifungal assay using poison plate technique was used to observe the inhibition of fungal pathogen. Then, healthy tomato fruits were dipped in aqueous ginger extract before evaluated for the post-harvest quality such as weight loss and firmness. The results of this study show that 10% aqueous ginger extract can inhibit the fungal pathogen (Fusarium oxysporum) that causes tomato wilt with 13.57% inhibition. Through in vivo antifungal assay, tomato fruits dipped in this plant extract showed lower weight loss (14.44%) and higher firmness (1.7 N) as compared to untreated fruit, but the data were not significantly different. Therefore, manipulation of this extract was suggested to increase its antifungal properties or as eco-friendly coating to lengthen the shelf life of agricultural produces.