Letteratura scientifica selezionata sul tema "Cordifolia"
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Articoli di riviste sul tema "Cordifolia"
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Kumar, M. Vijaya, H. Rama Subba Reddy, A. Narayana Swamy, K. Jayappa, M. Sreekanth Reddy, D. Veera Nagenddra Kumar e V. Uday Kiran. "A Therapeutic Evaluation of Anticancer and Pharmacological Abilities on Tinospora cordifolia: A Systematic Review". UTTAR PRADESH JOURNAL OF ZOOLOGY 45, n. 13 (3 giugno 2024): 1–8. http://dx.doi.org/10.56557/upjoz/2024/v45i134130.
Testo completoAbstract (sommario):
Tinospora cordifolia (Tc), commonly called as Giloy, it is a herbaceous vine that is widely used in traditional medicine systems for its alleged anti-cancer effects. The purpose of this systematic study is to assess Tinospora cordifolia’s (Tc) medicinal potential against cancer. A thorough search of various scientific databases was done for studies looking at Tinospora cordifolia's anti-cancer properties. The findings demonstrate a varied variety of In vitro and In vivo research demonstrating Tinospora cordifolia’s (Tc) anti-proliferative, apoptotic and anti-metastatic activities against many cancer types, including breast, prostate, colon, and leukaemia. Mechanistic insights into its mode of action, such as modulation of signaling pathways involved in cell cycle regulation, apoptosis and angiogenesis, are presented. However, limitations in study designs, inconsistency in methodology, and differences in reported outcomes highlight the need for more well-designed clinical trials to evaluate Tinospora cordifolia's efficacy and safety as a potential supplementary medicine in cancer treatment regimens. Therapeutic plants, such as T. cordifolia, can strengthen the body's defences against disease and cure specific areas, displaying more body compatibility and fewer side effects than medications. In conjunction with this, the current study highlights T. cordifolia's pharmacological potential against a variety of illnesses.
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Catalano, S., A. Bilia, G. Flamini, L. Pistelli e V. De Feo. "Cordifoliol: A New Iridoid fromMentzelia cordifolia". Planta Medica 58, S 1 (dicembre 1992): 717. http://dx.doi.org/10.1055/s-2006-961747.
Testo completo
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Shakil, Najam A., e Dinesh B. Saxena. "Isolation and Structure of Cordifolin, A Novel Insecticidal Oxygenated Chalcone, from the Stem of Tinospora Cordifolia Miers". Natural Product Communications 1, n. 7 (luglio 2006): 1934578X0600100. http://dx.doi.org/10.1177/1934578x0600100707.
Testo completoAbstract (sommario):
Cordifolin, a chalcone reported for the first time from a natural source, has been isolated from the ethanolic extract of the woody stem of Giloe (Tinospora cordifolia). The chemical structure was established as 1-(2′,3′,4′-trihydroxyphenyl)-3-(4′‘-methoxyphenyl)-propen-1-one by spectroscopic analysis. The compound exhibited good insect growth regulatory activity against larvae of Spodoptera litura.
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Marina Silalahi. "Utilization and bioactivity of Anredera cordifolia (Ten.) Steenis". GSC Biological and Pharmaceutical Sciences 26, n. 2 (28 febbraio 2024): 128–34. http://dx.doi.org/10.30574/gscbps.2024.26.2.0020.
Testo completoAbstract (sommario):
Anredera cordifolia (Ten.) Steenis is a multifunctional plant have been used decoration, food and traditional medicine. This study aims to explain the botany and use of A. cordifolia as a traditional medicinal plant and its bioactivity. The method used in this study is library research online using the keywords such as: A. cordifolia, uses of A. cordifolia and bioactivity of A. cordifolia. The all of information are synthesized so that explain of botanicals, benefits and bioactivity. The A. cordifolia has activity as cure of wound, anti-bacterial, anti-cholesterol and obesity, postpartum, anti-diabetes mellitus, antioxidant and anti-inflammatory, anti-hypertensive, anti-cancer, and lowering uric acid. The A. cordifolia contains triterpenoid saponins, steroids, saponins, glycosides, flavonoids, saponins and alkaloids, ursolic acid, ancordin, and apigenin. Saponins have been used to treat diabetes, liver, hepatitis, cardiovascular hypertension, hyper-cholesterol, and physical stress. Utilization of A. cordifolia as an anti-microbial has the potential to be used as a food preservative as well as providing healthful effects.
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Noviyanty, Yuska, Harlina Harlina e Ayu Yulianti Adha. "PENGARUH METODE EKSTRAKSI TERHADAP KADAR FLAVONOID EKSTRAK ETANOL DAUN BINAHONG(Anredera Cordifolia (Ten.)) DENGAN METODE SPEKTROFOTOMETRI UV-VIS". Oceana Biomedicina Journal 5, n. 2 (29 luglio 2022): 93–106. http://dx.doi.org/10.30649/obj.v5i2.80.
Testo completoAbstract (sommario):
ABSTRAK
Daun binahong (Anredera cordifolia(Ten)) adalah salah satu tanaman yang secara empiris,dan mengandung banyak senyawa metabolit sekunder salah satunya senyawa flavonoid. Penelitian ini bertujuan untuk melihat adanya pengaruh ekstrak etanol daun binahong (Anredera cordifolia(Ten.)) dengan menggunakan metode ekstraksi maserasi dan soxhletasi serta akan membandingkan hasil identifikasi dan penetapan kadar dari ekstraksi daun binahong (Anredera cordifolia(Ten.)) dengan menggunakan metode spektrofotometri Uv-Vis.
Proses ekstraksi dengan cara maserasi dan soxhletasi dilakukan untuk mendapatkan ekstrak daun binahong (Anredera cordifolia(Ten.)). Kemudian dilakukan identifikasi senyawa flavonoid dengan penambahan serbuk Mg dan HCl dimana positif flavonoid jika berwarna kuning-orange. Penetapan kadar senyawa flavonoid dari ekstrak daun binahong (Anredera cordifolia(Ten)) dengan metode spektrofotometri UV-Vis.
Hasil penelitian menujukkan bahwa ekstrak daun binahong (Anredera cordifolia(Ten)) metode maserasi dan soxhletasi positif mengandung flavonoid, dilihat dari warna yang dihasilkan yaitu orange. Serta didapatkan kadar flavonoid ekstrak etanol daun binahong (Anredera cordifolia(Ten)) metode maserasi adalah 2,43 %. Sedangkan kadar flavonoid ekstrak etanol daun binahong (Anredera cordifolia(Ten)) metode soxhletasi adalah 1,76%
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XIE, YIFEI, LEI XIE e ZHIXINAG ZHANG. "A new species and a revised of Sloanea cordifolia (Elaeocarpaceae) in China, southeast Yunnan". Phytotaxa 346, n. 2 (4 aprile 2018): 189. http://dx.doi.org/10.11646/phytotaxa.346.2.6.
Testo completoAbstract (sommario):
The taxonomic status of Sloanea cordifolia has been questionable as a variation of S. tomentosa by Coode. After field investigations, careful examination of herbarium specimens, the results showed that the flower of S. cordifolia is similar to S. tomentosa, and the difference between these two species is hair-related only. The statistical analysis revealed S. cordifolia and S. tomentosa clearly belong to the category of short prickles compared to species throughout the area; prick length of S. longiaculeatae is shorter compared to S. mollis, but the discontinuity is not particularly obvious; the width showed S. longiaculeatae is different from S. mollis, and S. cordifolia is larger than S. tomentosa. It is also the first time that the description of Sloanea cordifolia was completed. S. cordifolia K. M. Feng ex Hung T. Chang treated as Sloanea tomentosa (Benth.) Rehder & E.H. Wilson var. cordifolia (K. M. Feng ex Hung T. Chang) Y. F. Xie & Z. X. Zhang. The new species Sloanea longiaculeatae have been described and illustrated.
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Garg, Praveen, e Rajesh Garg. "QUALITATIVE AND QUANTITATIVE ANALYSIS OF LEAVES AND STEM OF TINOSPORA CORDIFOLIA IN DIFFERENT SOLVENT EXTRACT". Journal of Drug Delivery and Therapeutics 8, n. 5-s (1 ottobre 2018): 259–64. http://dx.doi.org/10.22270/jddt.v8i5-s.1967.
Testo completoAbstract (sommario):
Tinospora cordifolia is known as Giloe and Guduchi, with significant importance in the traditional medicinal systems. It is dioeciously plant. It is mostly used in Ayurved system. It is also known as a ‘Rasayans’ of medicinal system, which develops immune system of the body and protect against infection. The aim of this study is carried out to analyse the phytochemical compounds in leaves and stem extracts of T. cordifolia by using phytochemical screening tests and estimate total flavonoid content (TFC) by using aluminium chloride method in the sample extracts. The leaf and stem extracts of T. cordifolia expressed the presence of several phytochemicals viz., flavonoids, amino acids, diterpines, protein, saponins and carbohydrates. The result of phytochemical screening tests revealed that diterpines and carbohydrates are positive in all extracts of T. cordifolia, but flavonoids and saponins only present in methanol and ethanol extracts. TFC of T. cordifolia was higher in ethanolic leaves extracts than mathanolic leaves extracts. The studies justify that T. cordifolia use in traditional medicines. The investigation further proposed that the phytochemicals present in stems and leaves of T. cordifolia, which can be use as natural antioxidants in medicinal drugs.
Keywords: Tinospora cordifolia, Phytochemicals, Flavonoids
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Bana, Sweeti, Nitin Kumar, Ali Sartaj, Abdulsalam Alhalmi, Ashraf Ahmed Qurtam, Fahd A. Nasr, Mohammed Al-Zharani et al. "Rubia cordifolia L. Attenuates Diabetic Neuropathy by Inhibiting Apoptosis and Oxidative Stress in Rats". Pharmaceuticals 16, n. 11 (9 novembre 2023): 1586. http://dx.doi.org/10.3390/ph16111586.
Testo completoAbstract (sommario):
Background: Diabetic neuropathy is a debilitating manifestation of long-term diabetes mellitus. The present study explored the effects of the roots of Rubia cordifolia L. (R. cordifolia L.) in the Wistar rat model for diabetic neuropathy and possible neuroprotective, antidiabetic, and analgesic mechanisms underlying this effect. Materials and Methods: Rats were divided into five experimental groups. An amount of 0.25% carboxy methyl cellulose (CMC) in saline and streptozotocin (STZ) (60 mg/kg) was given to group 1 and group 2, respectively. Group 3 was treated with STZ and glibenclamide simultaneously while groups 4 and 5 were simultaneously treated with STZ and hydroalcoholic extract of the root of R. cordifolia, respectively. Hot plate and cold allodynias were used to evaluate the pain threshold. The antioxidant effects of R. cordifolia were assessed by measuring Thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD). At the end of the study, sciatic nerve and brain tissues were collected for histopathological study. Bcl-2 proteins, cleaved caspase-3, and Bax were assessed through the Western blot method. Results: R. cordifolia significantly attenuated paw withdrawal and tail flick latency in diabetic neuropathic rats. R. cordifolia significantly (p < 0.01) improved the levels of oxidative stress. It was found to decrease blood glucose levels and to increase animal weight in R. cordifolia-treated groups. Treatment with R. cordifolia suppressed the cleaved caspase-3 and reduced the Bax:Bcl2 ratio in sciatic nerve and brain tissue compared to the diabetic group. Histopathological analysis also revealed a marked improvement in architecture and loss of axons in brain and sciatic nerve tissues at a higher dose of R. cordifolia (400 mg/kg). Conclusion: R. cordifolia attenuated diabetic neuropathy through its antidiabetic and analgesic properties by ameliorating apoptosis and oxidative stress.
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Tautua, BamidelBae Martin Amos, Imomotimi Timipa Ajoko e Precious Ezougha Oyaseiye. "Phytochemical Screening and Antioxidant Potential of Methanol Extract of Triumfetta cordifolia A. Rich. (Malvaceae) Leaves". Scholars International Journal of Traditional and Complementary Medicine 7, n. 01 (8 gennaio 2024): 1–7. http://dx.doi.org/10.36348/sijtcm.2024.v07i01.001.
Testo completoAbstract (sommario):
Triumfetta cordifolia is a medicinal plant that has been widely utilized in Africa for its therapeutic properties in treating various ailments. The purpose of this research was to investigate phytochemicals and in vitro antioxidant activity of the leaf extract of T. cordifolia. Standard methods were employed to conduct qualitative phytochemical screening of the plant extract. This study used the DPPH (1, 1diphenyl-2-picryl hydrazyl) radical scavenging and ferric reducing antioxidant power method to assess antioxidant activity. Phytochemical analysis of T. cordifolia leaves indicated the existence of saponins, tannins, terpenoids, cardiac glycosides, alkaloids, flavonoids but no anthraquinones. In the DPPH scavenging test, the IC50 value of the methanolic extract was discovered to be 1.29 µg/mL, and the standard reference value for ascorbic acid was 2.14 µg/mL. The leaf extract of T. cordifolia displayed stronger inhibition of DPPH activity, showing a higher potency than ascorbic acid. The DPPH scavenging activity was also shown to increase with concentration. In FRAP assay, the T. cordifolia leaf extract and the ascorbic acid revealed reducing power of 71.01±0.15 and 548.39±1.62 μM Fe2+ per mg of extract, respectively. The FRAP assay demonstrated that ascorbic acid exhibited greater antioxidant activity than the leaf extract of T. cordifolia. The presence of flavonoids and phenols in T. cordifolia leaves may account for the observed antioxidant activity. In conclusion, the study's findings suggest that that T. cordifolia leaf extract could be a source of lead compounds with promising antioxidant activity.
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Dahanayake, JM, PK Perera, P. Galappatty, P. Fernando e LDAM Arawwawala. "Tinospora cordifolia (Wild) Hook.f. (Thomas) grown in Sri Lanka: Pharmacognostical, physico- chemical and phytochemical analysis of the stem". Journal of Ayurvedic and Herbal Medicine 6, n. 4 (14 gennaio 2021): 217–21. http://dx.doi.org/10.31254/jahm.2020.6404.
Testo completoAbstract (sommario):
Tinospora cordifolia (wild) Hook.f. (Thomas) is an important medicinal plant distributed throughout in Sri Lanka and commonly known as Rasakinda in Sinhala and Giloy in English. It is widely used in Sri Lankan traditional medical system and Ayurveda for the treatment of diabetes mellitus, fever, arthritis, skin diseases and for Rasayana (rejuvenating) therapies due to its anti-inflammatory, hypoglyceamic, immunomodulatory, antioxident, anti-allergy, antipyretic, antiarthritic and various other medicinal properties. Imported T. cordifolia stems and Sri Lankan grown T. cordifolia stems can be found in Sri Lankan herbal market. Moreover, different varieties of Tinospora species known as Tikthakinda, Bukinda and Gatakinda are available in the market under the name of Rasakinda which leads to adulteration. Hence, in this research an attempt was made to develop standards for genuine T. cordifolia grown in Sri Lanka. Stems of T. cordifolia evaluated for macroscopical, microscopical, physico-chemical, phytochemical constituents, TLC and HPTLC fingerprint patterns. Microscopical examinations of T. cordifolia stem exhibited the wheel shaped appearance at the transverse cut surface, which is a main characteristic feature of the family Menespermaceae. Stem also showed the mucilage cells and abundant starch granules. Percentages of total ash, water soluble ash and acid insoluble ash, were 9.1%+0.1, 2.31%+0.1, <0.1% respectively. Among the percentages of extractable matter of T. cordifolia, highest amount was shown in hot water extract (16.2 %+0.3). Heavy metals (Hg, As, Cd, Pb) were within the limits given in WHO guidelines. Phytochemical screening revealed the presence of phenols, saponins, tannins, steroids, flavonoids, terpenoids and cardiac glycosides. TLC fingerprint of T. cordifolia was developed using butanol: ethyl acetate: acetic acid: water in a ratio of 5: 8: 6:2 v/v and compared with one of its marker compound, Berberine. The HPTLC fingerprint patt ern of T. cordifolia showed a spot bearing the same Rf value corresponds to Berberine, at wavelength 254 nm. In conclusion, the results obtained from this study can be used as a standard reference for Sri Lankan grown T. cordifolia stems.
Tesi sul tema "Cordifolia"
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Kao, Rebecca Hufft. "The coexistence of polyploids in arnica cordifolia (asteraceae) /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2006. http://uclibs.org/PID/11984.
Testo completo
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Grosser, Peter, Carolin Siegel, Christoph Neinhuis e Thea Lautenschlaeger. "Triumfetta cordifolia: A Valuable (African) Source for Biocomposites". NC State University, 2018. https://tud.qucosa.de/id/qucosa%3A33826.
Testo completoAbstract (sommario):
The tradition of using naturally occurring plant fibers is still alive in Africa. In the Uíge province of northern Angola, bast fibers from Triumfetta cordifolia serve as the basis for everyday objects, such as baskets, mats, fishing nets, and traditional clothing. The fibers exhibit a Young’s modulus of 53.4 GPa and average tensile strength of 916.3 MPa, which are comparable to those of commercial kenaf fibers. These values indicate a high potential for use as a reinforcement in biocomposites. Based on this promising mechanical and physical profile of individual fibers, different biocomposites were produced with polylactide (PLA) as a matrix. The obtained composites were analyzed mechanically, physically, and visually. Unidirectionally arranged PLA/33% T. cordifolia composites with continuous fibers showed the highest Young’s modulus (10.79 GPa ± 1.52 GPa) and tensile strength (79.37 MPa ± 14.01 MPa). These composites were comparable to those of PLA/30% hemp composites (10.9 GPa and 82.9 MPa, respectively) and therefore have economic potential.
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Sandjo, Louis Pergaud. "Sphingolipides, triterpènoïdes et autres métabolites secondaires des variétés sauvage et cultivée de l'espèceTriumfetta Cordifolia A. Rich (Tiliaceae) : transformations chimiques et évaluation des propriétés biologiques de quelques composés isolés". Thesis, Metz, 2010. http://www.theses.fr/2010METZ006S/document.
Testo completoAbstract (sommario):
Depuis des décennies, les plantes sont utilisées en pharmacopée traditionnelle pour le soin de plusieurs maladies. Ceci en raison des résistances que présentent certains microorganismes vis-à-vis des produits pharmaceutiques. On notera aussi le manque de moyen financier pour l'accès au soin en médecine moderne. Voilà pourquoi le présent travail porte sur l'extraction, l'isolement, l'élucidation des structures, les transformations chimiques et les tests biologiques des métabolites secondaires des variétés sauvage et cultivée de l'espèce Triumfetta cordifolia A Rich (Tiliaceae). Les chromatographies successives de l'extrait organique des tiges et des feuilles de la variété sauvage ont conduit à l'isolement de quatre produits nouveaux dont deux céramides isolés des tiges et deux triterpènes obtenus des feuilles. Ces composés ont été identifiés à (2R, 6Z)-2-hydroxy-N-[(2S,3S,4R)-1,2,4-trihydroxyhexacosan-2-yl]heptadec-6enamide, {(2R)-N-(1S,2R,3E,6Z,9Z,12Z,15Z)-1-[(beta-D-glucopyranosyloxy)methyl]-2-hydroxy heneicosa-3,6,9,12,15-pentaen-1-yl}-2-hydroxytetradecanamide, 3-O-propanoyl-29-O-triacontanoylstigmasta-5,22-diene-3beta,29-diol et l'acide 2alpha,3beta,19alpha-trimethoxyurs-12-ene-24,28-dioique-24-[(2alpha,3beta)-24,28-bis(beta-D-glucopyranosyloxy)-2-hydroxy-24,28-dioxours-12-en-3-yl] ester. En plus de ces composés, onze autres de structures connues ont été isolés et identifiés à l'acide heptadecanoïque, au glucopyranoside de bêta-sitostérol, à la friedeline, au lupéol, à la bétuline, à l'acide oléanolique, à l'acide maslinique, à l'acide corosolique, au mélange de stigmastérol et bêta-sitostérol, à l'acide heneisanoïque et au trans-tiliroside. De l'extrait organique des tiges et des feuilles de l'espèce cultivée de Triumfetta cordifolia dix produits ont été isolés parmi lesquels trois n'ont pas encore été identifiés, quatre ont été déjà isolés de l'espèce sauvage (mélange de stigmastérol et bêta-sitostérol, glucopyranoside de bêta-sitostérol, triumfettamide) et les trois derniers de structures connues ont été identifiés à l'acide tormentique, à la bêta-carotène et à l'acide 24-hydroxytormentique. Les structures de ces composés ont été élucidées grâce aux données de RMN (1 et 2D) et elles ont été confirmées en comparant ces données à celles décrites dans la littérature. Le stigmastérol a été soumis à plusieurs réactions d'oxydation et en plus des produits obtenus, certains composés isolés en grande quantité ont été soumis au test de cytotoxicité sur une lignée de cellules HT1080. La méthode utilisée est la cytométrie à flux et certaines de ces drogues ont présenté une grande activité cytotoxique bien que induisant à la fois la mort nécrotique et non nécrotique des cellules cancérigènes. L'activité antioxydante des fractions issues du flash des deux plantes et certains composés a été évaluée par la méthode FRAP. Le travail révèle ici le caractère préventif et curatif de nos plantes comestibles ; car ces espèces peuvent bien utiliser contre les stress oxydatifs et les études biologiques pourront être approfondies sur certains composés isolés pour mettre en valeur leur propriétés anticancerFrom decade, plants are used in traditional healer to treat many diseases. This could be explained by microorganism pharmaceutical drug resistance. Beside, the poverty limits also access to modern treatment. That is why the present work deals with extraction, isolation, structural elucidation, chemical transformation and biological evaluation of secondary metabolites isolated from the wild and cultivated species of Triumfetta cordifolia A Rich (Tiliaceae). From the organic extract of twigs and leaves of wild T. cordifolia, four new compounds were characterized (two ceramides and two triterpens) by successive chromatography methods and identified as (2R, 6Z)-2-hydroxy-N-[(2S,3S,4R)-1,2,4-trihydroxyhexacosan-2-yl]heptadec-6enamide, {(2R)-N-(1S,2R,3E,6Z,9Z,12Z,15Z)-1-[(beta-D-glucopyranosyloxy)methyl]-2-hydroxy heneicosa-3,6,9,12,15-pentaen-1-yl}-2-hydroxytetradecanamide, 3-O-propanoyl-29-O-triacontanoylstigmasta-5,22-diene-3beta,29-diol et l'acide 2alpha,3beta,19alpha-trimethoxyurs-12-ene-24,28-dioique-24-[(2alpha,3beta)-24,28-bis(beta-D-glucopyranosyloxy)-2-hydroxy-24,28-dioxours-12-en-3-yl] ester acid..These compounds were obtained together with eleven known compounds identified as heptadecanoic acid, beta-sitostérol glucopyranoside, friedelin, lupeol, betulin, oleanolic acid, maslinic acid, corosolic acid, the mixture of stigmasterol and beta sitosterol, heneicosanoic acid and trans-tiliroside. From the organic extract of twigs and leaves of cultivated species, ten products were isolated ; three among of them have not yet been identified, four of them were already obtained from the wild species and the rest were identified as Tormentic acid, beta-carotene and 24-hydroxytormentic acid. The structures of these compounds were determined on the basis of NMR data(1H, 13C, two dimensional NMR analyses), mass spectrometry structure of new compounds were confirmed by chemical transformations while those of known compounds were confirmed by comparison of their physical and spectral data with those reported in the literature and with authentic samples for some of them. Stigmasterol was subjected to different oxidation reactions. The cytotoxic activities of the products and some isolated compounds against human fribosarcoma cell line HT1080 were evaluated. The flow cytometry was used to carry out this assay and some drugs showed good cytotoxic activities although inducing at the same time the apoptopic and necrotic dead of cells. The antioxidant properties of some fractions and compounds were also evaluated by FRAP method. Trans-tiliroside and its fraction showed good antioxidant activity. This work reveals the preventive and curative character of both eatable plants since these species could be used against oxidative stress. Other biological studies could be deepened to highlight the anticancer property of some isolated compounds
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Oliveira, Patricia Abrão de. "Estudo fitoquímico comparativo entre espécies de mikania cordifolia (L. F.) WILLD". Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-04062009-145515/.
Testo completoAbstract (sommario):
No presente trabalho, espécimes de Mikania cordifolia coletados em Ribeirão Preto, São Carlos, Campos do Jordão e Monte Verde são analisados comparativamente por métodos cromatográficos (CG e CLAE) para a pesquisa de triterpenóides, lactonas sesquiterpênicas e flavonóides. Todos os espécimes de M. cordifolia analisados apresentaram os triterpenóides -Amirina, -Amirina, Lupeol, Lupenona, Taraxasterol, Pseudotaraxasterol, Acetato de -Amirina, Acetato de -Amirina, Acetato de Lupeol, Acetato de Taraxasterol, Campesterol, Estigmasterol e -Sitosterol, as lactonas sesquiterpênicas 14-hidroxi-15[2-hidroximetilacriloiloxi]-germacra-1(10)E,4Z-11(13)-trien-12,8-olídeo, 14-hidroxi-15[2-hidroxi,2-metilpropanoiloxi]-germacra-1(10)E,4Z-11(13)-trien-12,8-olídeo e 14-hidroxi-15[2,3-epoxi,2-metilpropanoiloxi]-germacra-1(10)E,4Z-11(13)-trien-12,8-olídeo, os flavónóides Quercetina-3-O--galactosídeo e Rhamnazina e o ácido 3,4-diidroxi-benzóico. Apenas os espécimes de Ribeirão Preto e São Carlos apresentaram Friedelina. O extrato aquoso de M. cordifolia foi avaliado para atividade antiofídica, mostrando-se efetivo na diminuição do edema de pata de camundongo induzido por veneno de Bothrops moojeni.In the present work, specimens of Mikania cordifolia collected at Ribeirão Preto, São Carlos, Campos do Jordão and Monte Verde were analyzed comparatively for triterpenoids, sesquiterpene lactones and flavonoids by chromatographic methods (GC and HPLC). All M. cordifolia specimens analyzed showed the triterpenoids -Amyrin, - Amyrin, Lupeol, Lupenone, Taraxasterol, Pseudotaraxasterol, -Amyrin Acetate, - Amyrin Acetate, Lupeol Acetate, Taraxasterol Acetate, Campesterol, Stigmasterol e -Sitosterol, the sesquiterpene lactones 14-hydroxy-15[2 -hydroxymethylacryloyloxygermacra- 1(10)E,4Z-11(13)-trien-12,8 -olide, 14-hydroxy-15[2 -hydroxy,2 - methylpropanoyloxy]-germacra-1(10)E,4Z-11(13)-trien-12,8 -olide e 14-hydroxy- 15[2 ,3 -epoxy,2 -methylpropanoyloxy]-germacra-1(10)E,4Z-11(13)-trien-12,8 -olide, the flavonoids Quercetin-3-O- -galactoside and Rhamnazyn and the compound 3,4- dihydroxy-benzoic acid. Only specimens collected at Ribeirão Preto and São Carlos showed Friedelin. The aqueous extract of M. cordifolia was evaluated for antiofidic activity and was found effective in reducing mice paw edema induced by venom of Bothrops moojeni
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Silva, Adailton Martins. "Avaliação do efeito antinociceptivo orofacial da Sida cordifolia L. (Malvaceae) em roedores". Universidade Federal de Sergipe, 2011. https://ri.ufs.br/handle/riufs/3703.
Testo completoAbstract (sommario):
Sida cordifolia from Malvaceae family (Sida L.) with about 250 species around the world, has been used in folk medicine as anti-inflammatory, antirheumatic and antipyretic, laxative, diuretic, analgesic and hypoglycemic, antiviral, bactericide and antifungal. In this study, we attempted to identify the possible antinociceptive action of the ethanol extract (EE), chloroform (CF) and methanol (MF) fractions obtained of Sida cordifolia, known in Brazil as malva branca or malva branca sedosa . Leaves of S. cordifolia were used to produce the crude ethanol extract and after CF and MF. Experiments were conducted on Swiss mice using the glutamate and formalin-induced orofacial nociception. In the formalin test, all doses of EE, CF and MF significantly reduced the orofacial nociception in the first (p < 0.001) and second phase (p < 0.001), which was also naloxone-sensitive. The percentage reduction average for the first phase of the formalin test was 79,6% (EE), 78,4% (CF) e 65,6% (MF) and for the second phase 77,9% (EE), 69,7% (CF) e 81,1% (MF). In the glutamate-induced nociception test, only CF and MF significantly reduced the orofacial nociceptive behavior with inhibition percentage values of 48.1% (100 mg/kg, CF), 56.1% (200 mg/kg, CF), 66.4% (400 mg/kg, CF), 48.2 (200 mg/kg, MF) and 60.1 (400 mg/kg, MF). Furthermore, treatment of the animals with EE, CF and MF was not able to promote motor activity changes. These data demonstrate that S. cordifolia has a pronounced antinociceptive activity against orofacial nociception. However, pharmacological and chemical studies are continuing in order to characterize the mechanism(s) responsible for this antinociceptive action and also to identify other active substances present in S. cordifolia.A Sida cordifolia pertencente a família Malvaceae e gênero Sida L. com cerca de 250 espécies em todo mundo, tem sido utilizada na medicina popular como anti-inflamatória, antireumático e antipirético, laxante, diurético, analgésico e hipoglicemiante, antiviral, bactericida e antifúngica. O objetivo do presente estudo foi identificar a possível ação antinociceptiva do extrato etanólico (EE) e das frações clorofórmica (FC) e metanólica (FM) obtidas das folhas de Sida cordifolia, conhecida no Brasil como malva branca . As folhas de Sida cordifolia foram usadas para a preparação do extrato bruto e depois foi obtida frações a partir desse extrato. Os experimentos foram realizados com camundongos Swiss usando o glutamato e formalina como agentes de indução da nocicepção orofacial. No teste da formalina, todas as doses do EE, FC e FM significativamente reduziram o comportamento nociceptivo orofacial em ambas as fases do teste (p<0,001), as quais foram sensíveis a naloxona. A média percentual de redução para a primeira fase do teste da formalina foi 79,6% (EE), 78,4% (FC) e 65,6% (FM) e para a segunda fase 77,9% (EE), 69,7% (FC) e 81,1% (FM). No teste de nocicepção induzida por glutamanto, somente as FC e FM reduziram significativamente o comportamento nociceptivo orofacial com um percentual de inibição de 48,1% (100 mg/kg, FC), 56,1% (200 mg/kg, FC), 66,4% (400 mg/kg, FC), 48,2% (200 mg/kg, FM) e 60,1% (400 mg/kg, FM). O tratamento dos animais com EE, FC e FM não foi capaz de promover alterações na atividade motora. Esses resultados demonstraram que a S. cordifolia possui um pronunciado efeito sobre a nocicepção orofacial. No entanto, estudos químicos e farmacológicos são necessários a fim de caracterizar os mecanismos responsáveis por essa ação antinociceptiva, bem como identificar substâncias presentes dentro da S. cordifolia
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Castro, Giovanni Marques de 1990. "Identificação da quasispecies Papaya ringspot virus em uma biblioteca de cDNA de Fevillea cordifolia". [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316732.
Testo completoAbstract (sommario):
Orientadores: Felipe Rodrigues da Silva, Francisco Pereira LoboDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-27T12:42:35Z (GMT). No. of bitstreams: 1 Castro_GiovanniMarquesde_M.pdf: 8706589 bytes, checksum: bd5b5d6428a549bafa82854367f811b9 (MD5) Previous issue date: 2015
Resumo: A planta Fevillea cordifolia L. possui um grande potencial para produção de biodiesel. Buscando entender o metabolismo foi realizado um experimento exploratório de RNA-seq com sementes inteiras. No entanto, as análises da qualidade na biblioteca indicaram grande quantidade de sequências virais. Após a reconstrução do transcriptoma usando o programa TRINITY, também foi reconstruído o genoma completo do vírus. O vírus reconstruído possui identidade de 96% com o Papaya ringspot virus (PRSV) em um alinhamento global de nucleotídeos dos genomas completos. Avaliando a abundância dos contigs, o PRSV encontrado representa quase 60% das 24,6 milhões de leituras da biblioteca. Para identificar qual a origem do vírus encontrado, este foi comparado com 29 PRSVs existentes no Genbank através de análise filogenética usando do Algerian watermelon mosaic virus (AWMV) para enraizar a árvore. O vírus encontrado agrupa-se com os dois PRSVs do Brasil, dentro do grupo das Américas estando mais próximo do PRSV-W-C (DQ374152). A existência de recombinações entre os PRSVs foi analisada, porém não foi detectada recombinação recente. Devido à profundidade de sequenciamento maior que 10.000x, foi possível analisar as variações existentes do genoma viral reconstruído. Uma análise das variações dos códons virais foi realizada, mostrando uma tendência para ocorrência de indels para a região do genoma no fim do cístron NIb e início do cístron CP. Essas variações ocorrem devido à existência de haplótipos virais na amostra sequenciada. Para se estimar a diversidade de haplótipos virais da amostra, foi realizada uma reconstrução local da região de 500 nt com mais alta entropia. Foram reconstruídos 58 haplótipos, dos quais dois eram predominantes com frequências de 64,84% e 24,34%. Os haplótipos reconstruídos podem ser usados para o desenvolvimento de resistência mediada por RNAi, evitando que uma variante conhecida e preexistente na população possa quebrar a resistência
Abstract: The plant Fevillea cordifolia L. has a great potential for producing biodiesel. In order to understand its metabolic pathways an exploratory RNA-seq experiment was conducted with its whole-seeds. However the quality analysis of the library revealed a substantial amount of virus sequences. After the reconstruction of the transcriptome using the software TRINITY, the complete viral genome was obtained as well. The reconstructed viral genome had an identity of 96% with Papaya ringspot virus (PRSV) in a global nucleotide alignment using whole genomes. When estimating the abundance of the reconstructed sequences, this PRSV had almost 60% of the 24,6 million reads mapping to it. Aiming to elucidate the origin of this virus, its sequence was compared to 29 PRSVs from Genbank using phylogenetic analysis and the Algerian Watermelon Mosaic Virus (AWMV) as an outgroup. This PRSV clustered with the Brazilian isolates, being closer to PRSV-W-C (DQ374152). A recombination analysis was performed within the PRSVs but no recent recombination was detected. Due to the depth of the coverage sequencing being higher than 10.000x, it was possible to analyze the variations existing in the reconstructed genome. An analysis of the codons variations was performed, revealing a tendency for the occurrence of indels in a region at the end of NIb cistron and at the start of the CP cistron. These variations occur due to the existence of viral haplotypes sequenced in this sample. A local reconstruction of the 500nt region with the highest entropy was performed to estimate the diversity of viral haplotypes in this sample. 58 haplotypes were reconstructed, of which 2 were dominant with frequencies of 64,84% and 24,34%. The reconstructed haplotypes may be used for the development of RNAi-mediated resistance, avoiding the breaking of the resistance by variants that are known to exist in the population
Mestrado
Bioinformatica
Mestre em Genética e Biologia Molecular
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Souza, Lucéia Fátima. "Aspectos fitotécnicos, bromatológicos e componentes bioativos de Pereskia aculeata, Pereskia grandifolia e Anredera cordifolia". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/110057.
Testo completoAbstract (sommario):
As espécies Pereskia aculeata Miller e Pereskia grandifolia Haworth e Anredera cordifolia (Tenore) Steenis) são hortaliças não convencionais utilizadas na culinária tradicional pelo alto valor nutricional. Apesar da importância e do potencial alimentício das espécies do gênero Pereskia e da A. cordifolia, pouco se tem feito para expandir o conhecimento sobre tecnologia de produção ou mesmo composição química com caráter nutricional. Com base nisso, os objetivos deste trabalho foram fazer a caracterização morfologica destas espécies, estudar métodos de propagação, realizar análises da composição química, identificar o perfil de óleos essenciais e avaliar sua atividade biológica. Os resultados mostraram que P. aculeata e P.grandifolia propagam-se de forma sexuada e assexuada. A. cordifolia não produz sementes e a propagação vegetativa com estacas de ramos ou com mini tubérculos é viável. Com relação ao perfil nutricional, as três hortaliças apresentaram um bom potencial antioxidante, sendo os melhores resultados obtidos com extrações etanólica ou metanólica. As três hortaliças apresentaram folhas um bom potencial antioxidante, sendo os melhores resultados obtidos com extrações etanólica ou metanólica. Quanto à composição bromatológica, Com relação ao perfil nutricional A. cordifolia apresentou maior teor proteico (21,05%) do que a P. aculeata (14,38%) e a P. grandifolia (14,96%). O rendimento de óleo essencial foi de 0,03% e 0,09% para P. aculeata e P. grandifolia, respectivamente e para a A. cordifolia foi de 0,06%. Os componentes majoritários do óleo para a P. aculeata foram fitol, ácido hexadecanóico, para P. grandifolia foram óxido de manoyl e fitol, para a Anredera cordifolia foram 6-metyl α-ionone e n-hexadecano. Quanto a efeitos fitotóxicos, os óleos de Pereskia não foram efetivos na germinação das sementes de Sinapsis arvensis, Phalaris canariensis e Raphanus sativus, no entanto, afetaram o alongamento das radículas de R. sativus e S. arvensis. O óleo essencial de Anredera cordifolia estimulou a germinação de S. arvensis. Os óleos testados mostraram modesta atividade inibitória em bactérias patogênicas gram-positivas. Os resultados fornecem novas informações sobre a germinação de Pereskia e sobre a composição e efeitos biológicos de óleos essenciais de A. cordifolia, P.aculeata, P.grandifolia que contribuem para um melhor conhecimento dessas espécies.The species Pereskia aculeata Miller, Pereskia grandifolia Haworth and Anredera cordifolia (Tenore) Steenis) are not conventional vegetables, normally used in traditional cooking because of their high nutritional value. Despite the importance and potential of the food species of the genus Pereskia and A. cordifolia, known as ora-pro-nobis and bertalha heart, little has been done to increase knowledge on propagation and cultivation technology and on the chemical composition with nutritional value. Based on this, the objectives of this study were to characterize morphologically these species, study methods of propagation, perform analysis of the chemical composition, identify the essential oils profile and evaluate its biological activity. The results showed that P. aculeata and P.grandifolia spread from sexual and asexual form A. cordifolia does not produce seeds and vegetative propagation with cuttings of branches or mini tubers is feasible. The three vegetables showed leaves with a good antioxidant potential, and the best results were obtained with ethanol or methanol extractions. Regarding nutritional profile A. cordifolia showed higher protein content (21.05%) than P. aculeata (14.38%) and P. grandifolia (14.96%).The yield of essential oil extraction by hydrodistillation was 0.03% and 0.09% essential oil (dry basis) to P.aculeata and P. grandifolia, respectively, whereas A. cordifolia was 0.06%. The principal oil components of P. aculeata were phytol and hexadecanoic acid, to P. grandifolia were manoyl oxide, phytol and n-octadecane and for A. cordifolia were 6-α-ionone methyl and n-hexadecane. Furthermore, in relation to phytotoxic effects, the oils of peresquias weren´t effective on seed germination of Sinapsis arvensis, Phalaris canariensis and Raphanus sativus, however, affected the elongation of the rootlets of R. sativus and S. arvensis. The oils tested showed modest inhibitory activity in pathogenic gram-positive bacteria.The results provide new information on the germination of Pereskia and on the composition and biological effects of essential oils of A. cordifolia, P.aculeata, P.grandifolia that contribute to a better understanding of these species.
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Fanwa, nzokou Michele. "Extractiοn de la gοmme de triumfetta cοrdifοlia (Μalvaceae) : caractérisatiοn et valοrisatiοn". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH08.
Testo completoAbstract (sommario):
Les polysaccharides sont omniprésents dans le quotidien de l’homme à travers leur implication dans des domaines vitaux dont l’alimentation, la cosmétique, les domaines pharmaceutique et biomédicaux (…) où ils assurent des fonctions très variées. Ce caractère versatile couplé à leur grande disponibilité, leur caractère biocompatible et biodégradable, avec une toxicité limitée, et leurs propriétés biologiques recherchées, en font des ingrédients de prédilection pour de nombreuses industries, ce qui explique leur forte demande au détriment d’ingrédients moins recommandables à l’exemple de polymères pétrosourcés.Ce travail s’inscrit dans la recherche d’alternatives vertes pouvant valablement substituer les polymères synthétiques et contribuer à satisfaire la demande grandissante en ingrédients naturels pour de nombreuses industries intéressées à développer des formulations limitant l’usage d’ingrédients pétrosourcés. L’une des stratégies pour y parvenir consiste à explorer de ‘‘nouvelles’’ ressources disponibles de la biomasse au profil recherché. L’un des candidats potentiels est la gomme de T. cordifolia, une ressource aux propriétés singulières, utilisée depuis de nombreuses générations dans l’alimentation et la médecine Africaine, mais encore sous-étudiée et sous-exploitée.Le but de ce travail était d’apporter une meilleure connaissance et compréhension des propriétés de la gomme de T. cordifolia, puis de démontrer par la suite son potentiel de valorisation. Pour cela il a été essentiel de développer dans un premier temps une méthode d’extraction efficace et reproductible, capable de produire une gomme de haute pureté et à bon rendement, d’effectuer ensuite une série de caractérisations chimiques, physico-chimiques et rhéologiques, avant de mener enfin des essais de valorisation. De cette manière, nous avons pu accéder aux propriétés intrinsèques de la gomme à l’exemple de la composition chimique et monosaccharidique, la viscosité intrinsèque, les régimes de concentrations, les propriétés viscoélastiques en fonction de divers paramètres (concentration de gomme, température, pH, nature et concentration saline) et avons par la suite démontré son potentiel comme émulsifiant et stabilisant d’émulsions dès les faibles concentrations, un potentiel dû à la fois à son excellente capacité d’abaisser la tension superficielle de l’eau, à sa capacité de texturation marquée, ainsi qu’à son caractère polyélectrolyte.En somme, de par ses propriétés intrinsèques et fonctionnelles très marquées, la gomme de T. cordifolia présente un certain nombre de propriétés, en solution comme en émulsion, qui en font un candidat à fort potentiel de valorisation comme ingrédient multifonctionnel pour la formulation d’émulsions vertes et innovantesPolysaccharides are ubiquitous in everyday human life, through their involvement in vital fields such as food, cosmetics, pharmaceuticals and biomedicine (...), where they perform a wide variety of functions. Their versatility, combined with their availability, biocompatibility and biodegradability, with limited toxicity, and their relevant biological properties, make them the ingredients of choice for many industries, which explains their high demand to the detriment of less recommendable ingredients such as petro-based polymers.This work focuses on the search for green alternatives that can validly replace synthetic polymers and help meet the growing demand for natural ingredients from many industries interested in developing formulations that limit the use of petroleum-based ingredients. One strategy for achieving this is to explore "new" biomass resources with the desired profile. One potential candidate is T. cordifolia gum, a resource with singular properties that has been used for many generations in African food and medicine, but is still under-studied and under-exploited.The aim of this work was to gain a better knowledge and understanding of the properties of T. cordifolia gum, and then to demonstrate its valuation potential. To achieve this, it was essential to develop an efficient and reproducible extraction method capable of producing high-purity gum with good yields, then to carry out a series of chemical, physico-chemical and rheological characterizations, before proceeding with valorization trials. In this way, T. cordifolia gum's intrinsic properties, such as chemical and monosaccharide composition, intrinsic viscosity, concentration regimes and viscoelastic properties as a function of various parameters (gum concentration, temperature, pH and salt concentration) were elucidated, and its potential as emulsifier and stabilizer in oil-in-water emulsions was demonstrated at very low concentrations; a potential due to its excellent ability to lower the surface tension of water, its marked texturizing ability and its polyelectrolyte nature.All in all, the relevant intrinsic and functional properties of T. cordifolia gum, both in solution and in emulsion, make it a very promising candidate for use as a multifunctional ingredient in the formulation of innovative green emulsions
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Saidou, Clement. "Propriétés physico-chimiques et fonctionnelles des gommes hydrocolloïdes des écorces de Triumfetta cordifolia et Bridelia thermifolia". Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00870761.
Testo completoAbstract (sommario):
Triumfetta cordifolia et Bridelia thermifolia sont deux arbustes de la région tropicale d'Afrique dont les gommes extraites des écorces fraîches ou séchées sont confinées aux utilisations traditionnelles, notamment dans la cuisine (propriétés d'épaississement et d'aromatisation des sauces, d'amélioration de la texture des pâtisseries) et dans le procédé de décantation des bières traditionnelles de sorgho (bili-bili). Dans le but d'identifier la nature des gommes responsables de ces propriétés et d'évaluer leur potentiel de valorisation, la composition chimique (protéines, polysaccharides, fibres et minéraux) des écorces a été déterminée. Les gommes ont été extraites, caractérisées sur le plan chimique (composition en monosaccharides et en minéraux) et physique (comportement rhéologiques des extraits, poids moléculaire, viscosité intrinsèque et rayon de giration) et l'effet combiné des facteurs du milieu (température, pH, et concentration saline (NaCl, KCl, CaCl2 et MgCl2)) influençant la viscosité a été analysé selon un plan composite centré. Enfin, un essai d'application de ces gommes dans la préparation des beignets de maïs et de sorgho a été réalisé. Les résultats des analyses chimiques montrent une prédominance des polysaccharides dans les écorces (52 et 55% respectivement pour B. thermifolia et T. cordifolia) et dans les extraits (76 et 80% respectivement pour B. thermifolia et T. cordifolia), avec des teneurs 5 à 8 fois supérieures à celles des protéines. Ce qui permet de considérer que ces polysaccharides sont responsables des propriétés physiques d'épaississement exprimées par les extraits. Ces propriétés ne sont aucunement modifiées par le séchage des écorces. Les polysaccharides des extraits sont constitués principalement de rhamnose (24,51%), de galactose (15,23%), d'acides glucuronique (25,51%) et galacturonique (20,23%). La présence significative d'acides uroniques justifie la persistance des minéraux dans les extraits purifiés. Les masses moléculaires moyennes des polysaccharides sont de 6,14 x106 et 3,58 x106Da respectivement pour T. cordifolia et B. thermifolia. Sur le plan physique, leurs viscosités intrinsèques et leur rayon de giration sont relativement élevés (18,33dl/g et 269,6nm pour T. cordifolia; 17,98dl/g et 217,8nm pour B. thermifolia). La cinétique de séchage des écorces de T. cordifolia et B. thermifolia se déroule en deux périodes cinétiques représentées par deux constantes de séchage k1 et k2 qui augmentent avec la température de séchage. La viscosité des extraits diminue pour des températures de séchage des écorces au-délà de 70°C. Cette baisse de viscosité des extraits serait plus le résultat d'un changement de conformation des polysaccharides que de leur dégradation. L'étude du comportement rhéologique de ces polysaccharides traduit un comportement rhéofluidifiant, viscoélastique, peu thixotrope et avec des contraintes seuil d'écoulement comprises entre 0,2 et 5Pa et entre 0,5 et 1Pa respectivement pour T. cordifolia et B. thermifolia à des concentrations comprises entre 0,52 et 0,82g/l. La température et les cations monovalents (K+ et Na+) ont un effet dépresseur sur la viscosité des gommes tandis que les pHs faiblement acide et alcalin et les cations divalents (Ca2+ et Mg2+) l'augmentent. L'effet combiné de ces facteurs sur la viscosité des gommes se décrit de façon satisfaisante par un modèle de second degré. L'analyse des interactions entre les facteurs de variation (définit dans le modèle) met en évidence, pour chaque facteur, une plage de valeurs pour lesquelles il contribue à l'obtention d'une zone de viscosités optimales et offre sur le plan pratique une gamme de choix des niveaux de variables en fonction du niveau de viscosité voulue. L'incorporation d'extraits de T. cordifolia (3,5 g/l) et B. thermifolia (11 g/l) dans la farine de maïs ou de sorgho, contribue de façon significative à l'amélioration du gonflemen
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Saidou, Clément. "Propriétés physico-chimiques et fonctionnelles des gommes hydrocolloïdes des écorces de Triumfetta cordifolia et Bridelia thermifolia". Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENI080/document.
Testo completoAbstract (sommario):
Triumfetta cordifolia et Bridelia thermifolia sont deux arbustes de la région tropicale d'Afrique dont les gommes extraites des écorces fraîches ou séchées sont confinées aux utilisations traditionnelles, notamment dans la cuisine (propriétés d'épaississement et d'aromatisation des sauces, d'amélioration de la texture des pâtisseries) et dans le procédé de décantation des bières traditionnelles de sorgho (bili-bili). Dans le but d'identifier la nature des gommes responsables de ces propriétés et d'évaluer leur potentiel de valorisation, la composition chimique (protéines, polysaccharides, fibres et minéraux) des écorces a été déterminée. Les gommes ont été extraites, caractérisées sur le plan chimique (composition en monosaccharides et en minéraux) et physique (comportement rhéologiques des extraits, poids moléculaire, viscosité intrinsèque et rayon de giration) et l'effet combiné des facteurs du milieu (température, pH, et concentration saline (NaCl, KCl, CaCl2 et MgCl2)) influençant la viscosité a été analysé selon un plan composite centré. Enfin, un essai d'application de ces gommes dans la préparation des beignets de maïs et de sorgho a été réalisé. Les résultats des analyses chimiques montrent une prédominance des polysaccharides dans les écorces (52 et 55% respectivement pour B. thermifolia et T. cordifolia) et dans les extraits (76 et 80% respectivement pour B. thermifolia et T. cordifolia), avec des teneurs 5 à 8 fois supérieures à celles des protéines. Ce qui permet de considérer que ces polysaccharides sont responsables des propriétés physiques d'épaississement exprimées par les extraits. Ces propriétés ne sont aucunement modifiées par le séchage des écorces. Les polysaccharides des extraits sont constitués principalement de rhamnose (24,51%), de galactose (15,23%), d'acides glucuronique (25,51%) et galacturonique (20,23%). La présence significative d'acides uroniques justifie la persistance des minéraux dans les extraits purifiés. Les masses moléculaires moyennes des polysaccharides sont de 6,14 x106 et 3,58 x106Da respectivement pour T. cordifolia et B. thermifolia. Sur le plan physique, leurs viscosités intrinsèques et leur rayon de giration sont relativement élevés (18,33dl/g et 269,6nm pour T. cordifolia; 17,98dl/g et 217,8nm pour B. thermifolia). La cinétique de séchage des écorces de T. cordifolia et B. thermifolia se déroule en deux périodes cinétiques représentées par deux constantes de séchage k1 et k2 qui augmentent avec la température de séchage. La viscosité des extraits diminue pour des températures de séchage des écorces au-délà de 70°C. Cette baisse de viscosité des extraits serait plus le résultat d'un changement de conformation des polysaccharides que de leur dégradation. L'étude du comportement rhéologique de ces polysaccharides traduit un comportement rhéofluidifiant, viscoélastique, peu thixotrope et avec des contraintes seuil d'écoulement comprises entre 0,2 et 5Pa et entre 0,5 et 1Pa respectivement pour T. cordifolia et B. thermifolia à des concentrations comprises entre 0,52 et 0,82g/l. La température et les cations monovalents (K+ et Na+) ont un effet dépresseur sur la viscosité des gommes tandis que les pHs faiblement acide et alcalin et les cations divalents (Ca2+ et Mg2+) l'augmentent. L'effet combiné de ces facteurs sur la viscosité des gommes se décrit de façon satisfaisante par un modèle de second degré. L'analyse des interactions entre les facteurs de variation (définit dans le modèle) met en évidence, pour chaque facteur, une plage de valeurs pour lesquelles il contribue à l'obtention d'une zone de viscosités optimales et offre sur le plan pratique une gamme de choix des niveaux de variables en fonction du niveau de viscosité voulue. L'incorporation d'extraits de T. cordifolia (3,5 g/l) et B. thermifolia (11 g/l) dans la farine de maïs ou de sorgho, contribue de façon significative à l'amélioration du gonflemenTriumfetta cordifolia and Bridelia thermifolia are two shrubs of tropical Africa whose gums extracted from fresh or dried barks are confined to traditional uses, particularly in the kitchen (thickening and flavoring properties in sauces and improvement of the texture of bakery ptoducts) and in the decantation process of the sorghum based traditionnal beer (bili-bili). In order to identify the nature of the gums responsible for these properties and assess their potentials for valorization, the chemical composition (proteins, polysaccharides, minerals and fiber) of barks was determined. The gums were extracted, and characterized for their chemical (monosaccharide composition and minerals) and physical (rheological behavior of extracts, molecular weight, intrinsic viscosity and radius of gyration) properties. Then, the combined effects of environmental factors (temperature, pH and salt concentration [NaCl, KCl, CaCl2 and MgCl2]) influencing the viscosity was analyzed using a central composite design. Finally application test of these gums in preparing doughnuts from maize and sorghum flour was carried out. The results of chemical analyzes showed that polysaccharides dominated in the barks (52 and 55% respectively for B.thermifolia and T. cordifolia) and in extracts (76 and 80% respectively for B.thermifolia and T. cordifolia), with levels 5-8 times higher than those of proteins. This allowed to hypothesize that these polysaccharides are responsible for the thickening properties demonstrated by the extracts. These properties are not be affected by the drying of the bark. The polysaccharides of the extracts are mainly composed of rhamnose (24.51%), galactose (15.23%), glucuronic acid (25.51%) and galacturonic acid (20.23%). The significant presence of uronic acids justifies the persistence of minerals in the purified extracts. The molecular weights of polysaccharides are 6.14 x106 and 3.58x106 Da, respectively for T. cordifolia and B. thermifolia. On the physical level, their intrinsic viscosities and their gyration radius are relatively high (18.33 dl/g and 269.6 nm for T. cordifolia; 17.98 dl/g and 217.8 nm for B. thermifolia). The drying kinetics for barks of T. cordifolia and B. thermifolia presents two falling rate periods represented by two kinetic constants k1 and k2, which increase with increasing drying temperature. Viscosity of extracts decreases when barks are dried beyond 70°C. This may be probably the consequence of a conformational change of polysaccharides than the result of their degradation. The study of the rheological behavior of these polysaccharides indicates a shear thinning, viscoelastic and weak thixotropic behavior, with flowing pressures yield point between 0.2 and 5Pa and between 0.5 and 1Pa, respectively for T. cordifolia and B. thermifolia, at concentrations between 0.52 and 0.82 g/l. Temperature and monovalent cations (K+ and Na+) have a depressant effect on viscosity of gums, while weakly acidic and alkaline pH and divalent cations (Ca2+ and Mg2+) increase it. The combined effect of these factors on the viscosity of gums is satisfactorily described by a second degree model. Analysis of interactions between factors of variation shows, for each factor, a range of values for which it contributes to the achievement of a zone of optimal viscosity. This zone offers a practical range for the choice of variable levels, depending on the desired viscosity. The incorporation of extracts of T. cordifolia (3.5 g/l) and B. thermifolia (11 g/l) in the maize or sorghum flour, improves significantly the swelling of the dough. The doughnuts obtained after baking are, from organoleptic point of view, comparable to wheat doughnuts
Libri sul tema "Cordifolia"
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Ojha, J. K. A scientific study on Manjishtha (Rubia cordifolia) with special reference to non-healing diabetic foot ulcers. Delhi: Chaukhamba Sanskrit Pratishthan, 2006.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora cordifolia. CRC Press, 2020. http://dx.doi.org/10.1201/9781003016038.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora Cordifolia. Taylor & Francis Group, 2022.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora Cordifolia Linn (Amrita). Taylor & Francis Group, 2020.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora Cordifolia Linn (Amrita). Taylor & Francis Group, 2020.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora Cordifolia Linn (Amrita). Taylor & Francis Group, 2020.
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Kumar, Brijesh, Vikas Bajpai e Nikhil Kumar. Phytochemistry of Tinospora Cordifolia Linn (Amrita). Taylor & Francis Group, 2020.
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Phytochemistry of Tinospora Cordifolia Linn (Amrita). Taylor & Francis Group, 2020.
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Flores Molina, Luis Alfredo, Martín Edward Pincheira Barrera, Iván Quiroz Marchant e Arnoldo Javier Villarroel Muñoz. Manual de viverización y plantación de especies nativas. Zona centro sur de Chile. INFOR, 2001. http://dx.doi.org/10.52904/20.500.12220/1438.
Testo completoAbstract (sommario):
Este documento tiene por objetivo proporcionar una pauta técnica que contribuya exitosamente a la viverización y plantación de las especies nativas de roble (Nothofagus obliqua), raulí (Nothofagus alpina), coigüe (Nothofagus dombeyi) y ulmo (Eucryphia cordifolia).
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Bruneau, William. A User's Guide to Sida acuta, Sida cordifolia, and Sida rhombifolia : : How to Grow, Harvest, and Make Medicinals from the World's Best Herbal ... Superior Fiber, Grow Them with Your Tomatoes. CreateSpace Independent Publishing Platform, 2018.
Cerca il testo completoCapitoli di libri sul tema "Cordifolia"
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Azimova, Shakhnoza S., e Anna I. Glushenkova. "Nicotiana cordifolia". In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 895–96. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_2876.
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Dev, Sukh. "Sida cordifolia". In Prime Ayurvedic Plant Drugs, 646–51. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22075-3_92.
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Dev, Sukh. "Tinospora cordifolia". In Prime Ayurvedic Plant Drugs, 687–95. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22075-3_97.
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Dev, Sukh. "Rubia cordifolia". In Prime Ayurvedic Plant Drugs, 612–19. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22075-3_87.
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Tang, Weici, e Gerhard Eisenbrand. "Rubia cordifolia L." In Chinese Drugs of Plant Origin, 885–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-73739-8_109.
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Khare, C. P. "Sida cordifolia Linn." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_1494.
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Khare, C. P. "Ficus cordifolia Roxb." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_634.
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Azimova, Shakhnoza S., e Anna I. Glushenkova. "Sida cordifolia L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 634. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_2063.
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Azimova, Shakhnoza S., e Anna I. Glushenkova. "Crambe cordifolia Steven." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 215. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_682.
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Azimova, Shakhnoza S., e Anna I. Glushenkova. "Fevillea cordifolia L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 310–11. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_961.
Testo completoAtti di convegni sul tema "Cordifolia"
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Nidhi, Renu Gupta e Shilpi Agarwal. "FTIR Spectroscopic Analysis of Pharmacological Importance of Tinospora Cordifolia (Giloy)". In Frontiers in Optics. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jm7a.97.
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Milanovic, Žiko, Marko Antonijevic, Ana Kesic, Dusan Dimic e Jelena Đorovic Jovanovic. "ANTIOKSIDATIVNI KAPACITET ANTRAHINONA IZ BILJKE RUBIA CORDIFOLIA LINN". In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.487m.
Testo completoAbstract (sommario):
In this study, the antioxidant and antiradical capacities of anthraquinones from Rubia cordifolia Linn were determined using the DFT method. The thermodynamically most favorable reaction pathways of antioxidant mechanisms were defined, as well as the most favorable antiradical reaction mechanisms for the deactivation of methylperoxyl and methoxy radicals. The calculations were done in the gas phase. HAT is thermodynamically the most favorable mechanism of antioxidant action of the studied anthraquinones, while the most probable mechanism of deactivation of methylperoxyl and methoxy radicals is the SPLET mechanism.
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Sibiya, Malusi, Sithembile Nkosi e Sifiso Xulu. "Optimised Detection of Anredera Cordifolia (Madeira Vine) using a Mask-RCNN and Anredera Cordifolia’s prominent features as object classes". In 2022 3rd International Conference on Next Generation Computing Applications (NextComp). IEEE, 2022. http://dx.doi.org/10.1109/nextcomp55567.2022.9932192.
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Vasavi, S., Akshaya Sura, Pranavi Chimirala e M. Likitha. "Tinospora Cordifolia Leaf Detection from Drone Images Using Deep CNN". In 2023 IEEE 5th International Conference on Cybernetics, Cognition and Machine Learning Applications (ICCCMLA). IEEE, 2023. http://dx.doi.org/10.1109/icccmla58983.2023.10346887.
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Iyengar, Sowmya, Anand V. Kulkarni, Mithun Sharma, D. Nageshwar Reddy e Padaki Nagaraja Rao. "IDDF2022-ABS-0185 Tinospora cordifolia induced liver injury during covid-19 pandemic". In Abstracts of the International Digestive Disease Forum (IDDF), Hong Kong, 2–4 September 2022. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2022. http://dx.doi.org/10.1136/gutjnl-2022-iddf.115.
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Basyuni, Mohammad, Prita Yulianti Anasta Br Ginting e Indra Lesmana. "Phytochemical analysis of Binahong (Anredera Cordifolia) leaves extract to inhibit In Vitro growth of Aeromonas Hydrophila". In PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON APPLIED CHEMISTRY 2017. Author(s), 2017. http://dx.doi.org/10.1063/1.5011929.
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Hapsari, A. F., D. A. W. Setyaningrum, R. P. Wardhani, A. Alfina, R. B. Ginting e W. A. Dzakiy. "Burn Healing with Binahong (Anredera cordifolia (Tenore) Steenis) Leaves Extract as A Topical and Systemic Treatments". In 1st International Integrative Conference on Health, Life and Social Sciences (ICHLaS 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/ichlas-17.2017.2.
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Krisanti, Elsa Anisa, Mutiara Primaster Wahyunisa, Nugrahirani Hijrianti e Kamarza Mulia. "Chitosan-alginate matrices loaded with leaf extracts of Anredera cordifolia Steenis as a gastrointestinal extended-release formulation". In THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5139338.
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Wulandari, Novita Suci, Hikam Nur Abdallah, Ngurah Ayu K. Umiati, Vincensius Gunawan e Agus Subagio. "Fabrication of PVA/alginate/red binahong (Anredera cordifolia (Ten.) steenis) fiber using electrospinning method: Functional group analysis". In ADVANCES IN INTELLIGENT APPLICATIONS AND INNOVATIVE APPROACH. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0149515.
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Ladeska, Vera, Ani Pahriyani e Monika Silviani Gunawijaya. "The Potency of Binahong Leaves (Anredera cordifolia (Ten.) Steenis) Subfraction with Ethanol 70% as an Antihyperuricemic Agent". In 1st Muhammadiyah International Conference on Health and Pharmaceutical Development. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0008240801430146.
Testo completoRapporti di organizzazioni sul tema "Cordifolia"
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Large, M., e L. Farrington. The Nephrolepis Boston fern complex (including Nephrolepis exaltata [L.] Schott), Nephrolepidaceae, naturalised in New Zealand. Unitec ePress, dicembre 2016. http://dx.doi.org/10.34074/pibs.rs22016.
Testo completoAbstract (sommario):
Nephrolepis cordifolia (ladder fern) is widely recorded as an invasive weed, and is naturalised in New Zealand. The first records of this plant being wild date from the 1970s. The presence of other native species of Nephrolepis (in particular N. flexuosa Colenso) potentially complicates the recognition of the naturalised species. However, N. cordifolia has been easily distinguished by the presence of ‘bulbils’ or ‘tubers’ that appear along wire-like runners. In this paper we report the presence of the Boston fern complex (including N. exaltata) now apparently wild in the Auckland region. This aggregate is without bulbils and may superficially be confused with the other native and non-native species.
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Berryman, Erin M., Penelope Morgan, Peter R. Robichaud e Deborah Page-Dumroese. Post-fire erosion control mulches alter belowground processes and nitrate reductase activity of a perennial forb, heartleaf arnica (Arnica cordifolia). Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2014. http://dx.doi.org/10.2737/rmrs-rn-69.
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