Academic literature on the topic 'Vegetable oil and protein extraction'
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Journal articles on the topic "Vegetable oil and protein extraction"
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Gao, Yuhang, Chen Liu, Fei Yao, and Fusheng Chen. "Aqueous enzymatic extraction of peanut oil body and protein and evaluation of its physicochemical and functional properties." International Journal of Food Engineering 17, no. 11 (October 22, 2021): 897–908. http://dx.doi.org/10.1515/ijfe-2021-0226.
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Abstract Aqueous enzymatic extraction (AEE) is a new technology for extracting vegetable oil body which has the advantages of low energy consumption, product safety, mild reaction conditions, and simultaneous separation of oil and protein. Among the enzymes tested in the present work, Viscozyme L (compound plant hydrolase) exhibited the highest extraction activity during peanut oil extraction. Extraction was optimized using response surface methodology, and optimal conditions were enzymatic temperature 51.5 °C, material-to-liquid ratio 1:3.5, enzymatic concentration 1.5%, and enzymatic time 90 min, yielding total oil body and protein of 93.67 ± 0.59% and 76.84 ± 0.68%, respectively. The fatty acid composition and content, and various quality indicators were not significantly different from those of cold-pressed oil, hence peanut oil produced by AEE met the same standards as cold-pressed first-grade peanut oil. Additionally, the functional properties of peanut protein produced by AEE were superior to those of commercially available peanut protein.
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Saviane, Alessio, Luca Tassoni, Daniele Naviglio, Daniela Lupi, Sara Savoldelli, Giulia Bianchi, Giovanna Cortellino, et al. "Mechanical Processing of Hermetia illucens Larvae and Bombyx mori Pupae Produces Oils with Antimicrobial Activity." Animals 11, no. 3 (March 11, 2021): 783. http://dx.doi.org/10.3390/ani11030783.
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The aim of this work was to develop processing methods that safeguard the quality and antimicrobial properties of H. illucens and B. mori oils. We adopted a vegetable diet for both insects: leftover vegetables and fruit for H. illucens and mulberry leaves for B. mori. First, alternative techniques to obtain a good oil extraction yield from the dried biomass of H. illucens larvae were tested. Traditional pressing resulted to be the best system to maximize the oil yield and it was successfully applied to B. mori pupae. Oil quality resulted comparable to that obtained with other extraction methods described in the literature. In the case of B. mori pupae, different treatments and preservation periods were investigated to evaluate their influence on the oil composition and quality. Interestingly, agar diffusion assays demonstrated the sensitivity of Gram-positive Bacillus subtilis and Staphylococcus aureus to H. illucens and B. mori derived oils, whereas the growth of Gram-negative Pseudomonas aeruginosa and Escherichia coli was not affected. This study confirms that fat and other active compounds of the oil extracted by hot pressing could represent effective antimicrobials against bacteria, a relevant result if we consider that they are by-products of the protein extraction process in the feed industry.
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Ahlström, Cecilia, Johan Thuvander, Marilyn Rayner, María Matos, Gemma Gutiérrez, and Karolina Östbring. "The Effect of Precipitation pH on Protein Recovery Yield and Emulsifying Properties in the Extraction of Protein from Cold-Pressed Rapeseed Press Cake." Molecules 27, no. 9 (May 5, 2022): 2957. http://dx.doi.org/10.3390/molecules27092957.
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Rapeseed is the second most cultivated oilseed after soybean and is mainly used to produce vegetable oil. The by-product rapeseed press cake is rich in high-quality proteins, thus having the possibility of becoming a new plant protein food source. This study aimed to investigate how the precipitation pH affects the protein yield, protein content, and emulsifying properties when industrially cold-pressed rapeseed press cake is used as the starting material. Proteins were extracted under alkaline conditions (pH 10.5) with an extraction coefficient of 52 ± 2% followed by precipitation at various pH (3.0–6.5). The most preferred condition in terms of process efficiency was pH 4.0, which is reflected in the zeta potential results, where the proteins’ net charge was 0 at pH 4.2. pH 4.0 also exhibited the highest protein recovery yield (33 ± 0%) and the highest protein concentration (64 ± 1%, dry basis). Proteins precipitated at pH 6.0–6.5 stabilized emulsions with the smallest initial droplet size, although emulsions stabilized by rapeseed protein precipitated at pH 5.0–6.0 showed the highest emulsion stability at 37 °C for 21 days, with a limited layer of free oil. Overall, emulsion stabilized by protein precipitated at pH 5.0 was the most stable formulation, with no layer of free oil after 21 days of incubation.
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Kalaydzhiev, Hristo, Petya Ivanova, Galina Uzunova, Ivan Manolov, and Vesela Chalova. "Biuret and Bradford Methods Suitability for Protein Quantification in Rapeseed Meal." Contemporary Agriculture 67, no. 1 (March 1, 2018): 87–92. http://dx.doi.org/10.2478/contagri-2018-0013.
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Summary Being attractive for insects, non-genetically modified rapeseed is valuable for maintaining environmental biodiversity. Primarily, the rapeseed is an important industrial crop which is used for production of vegetable oil. Oil extraction from rapeseeds results in the generation of substantial amounts of rapeseed meal which is used either as a protein rich feed additive or as a source for preparation of protein containing ingredients for food industry. Both applications require frequent evaluation of protein content. Although Kjeldahl method is considered standard, it is not appropriate for routine evaluation of protein content in protein extracts. The aim of the study was to evaluate suitability of biuret and Bradford methods for protein quantification in rapeseed meal extracts. After consecutive triple extraction of proteins with water, 5% NaCl, 70% ethyl alcohol and 0.1 N NaOH, protein evaluation of each albumin, globulin, prolamin and glutelin extraction aliquot demonstrated overall lower protein content by Bradford method compared to biuret method. The most pronounced differences in protein content were observed with prolamin fraction where three fold higher protein concentrations in each extraction aliquot was observed when biuret method was applied for the evaluation. Comparative quantification of the total protein of each of the four fractions followed a similar trend of lower protein content evaluation by Bradford method. Overall results indicated biuret method as more suitable for protein quantification in rapeseed meal extracts which was confirmed by comparison with data obtained by Kjeldahl method.
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Ravindran, V., A. S. B. Rajaguru, and Chitra De Silva. "Evaluation of rubber (Hevea brasiliensis Muell-Arg.) seed meal in White Leghorn cockerel diets." Journal of Agricultural Science 108, no. 2 (April 1987): 505–8. http://dx.doi.org/10.1017/s0021859600079569.
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Para-rubber (Hevea brasiliensis Muell-Arg.) is a major plantation crop in South-East Asia. In addition to its economically important latex, the para-rubber tree produces seeds that serve as a source of industrial oil. Rubber seed meal (RSM), a by-product of the oil extraction, contains moderately high amounts of crude protein and is available at lower prices than most traditional vegetable protein supplements in the region. The estimated availability of RSM in South-East Asian countries is about 1·2 million tonnes.
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Citeau, Morgane, Sara Albe Slabi, Florent Joffre, and Patrick Carré. "Improved rapeseed oil extraction yield and quality via cold separation of ethanol miscella." OCL 25, no. 2 (March 2018): D207. http://dx.doi.org/10.1051/ocl/2018012.
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In the extraction of vegetable oils, the idea of using ethanol as a solvent, allowing solvent recycling without distillation, can be attested as early as 1948 (Beckel), yet it is now seldom envisaged. The development of organic farming and a growing demand for a more natural diet prompted us to revisit this approach, which takes advantage of the relatively low affinity of ethanol for lipids to produce pure crude oils and meal with higher protein content. This method is based on the change of oil solubility in ethanol with temperature. Rapeseed oil extraction was carried out by hot pressurized ethanol (subcritical extraction condition). Oil was then recovered by cooling the miscella and demixing of two phases, an oil-rich phase and a solvent-rich phase. This study, after verifying the kinetics of extraction, focused on the optimization of the demixing temperature based on the amount and quality of recovered oil. The results show that ethanol extraction followed by cold demixing of the miscella makes it possible to obtain a high quality oil, free of free fatty acids and phospholipids.
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Smith, Elwin G., H. H. Janzen, and Nathaniel K. Newlands. "Energy balances of biodiesel production from soybean and canola in Canada." Canadian Journal of Plant Science 87, no. 4 (October 1, 2007): 793–801. http://dx.doi.org/10.4141/cjps06067.
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Biodiesel is currently produced in Canada mostly from recycled oils and animal fats. If biodiesel is to supply 5% of diesel usage, a government objective, first-time vegetable, likely from canola and soybean, oil will also be required to provide adequate feedstocks. In this review, we estimate the life cycle energy balances for biodiesel produced from soybean and canola oil under Canadian conditions. The three broad areas of energy inputs were crop production, oil extraction, and transesterification of the vegetable oil into biodiesel. Per unit seed yield, farm production energy inputs for canola were about three times higher than for soybean, mostly because of higher nitrogen fertilizer requirements for canola. Energy required for processing and oil extraction, per unit oil, was higher for soybean. Energy allocation for co-products was allocated using a system expansion approach. Protein meal was assigned about 12% of the energy expended for canola to grow the crop and extract the oil, and about 37% for soybean. Glycerine produced during the transesterification process was allocated energy on a weight basis (11.4%). The ratio of biodiesel energy produced per energy input ranged from 2.08 t o 2.41. The energy ratio was similar for soybean and canola:soybean required less energy inputs, but also produced less oil than canola, for a given weight of seed. Key words: Biodiesel, energy, life cycle analysis, soybean, canola
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Maeda, Hiroshi, Takao Satoh, and Waliul Islam. "Preparation of function-enhanced vegetable oils." Functional Foods in Health and Disease 6, no. 1 (January 18, 2016): 33. http://dx.doi.org/10.31989/ffhd.v6i1.223.
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Background: Previously, we (HM) found that most commercially available edible oils, which were processed by hexane extraction followed by a number of purification steps, were extremely low in anti-peroxy radical (ROO.), or radical scavenging activity. This is a great contrast to the respective virgin oils as exemplified by extra-virgin olive oil or crude rape seed oil [1-4] (Figure 1). Therefore, such highly purified oils will became prooxidant and less desirable food components in terms of health oriented diet. Oxidized oils may eventually cause DNA cleavages, modification of proteins, RNA, and lipids, as well as cellular damage, or promote inflammation and carcinogenesis at later time [5-9]. These commercial oils of low antioxidant activity may be improved by adding functionally effective antioxidative components, by using dried vegetable-waste such as tomato-juice-waste-residues and wine-ferment-waste-residues. Their antioxiative components will be transferred into the functionally poor grade edible oils, and consequently, one can improve the quality of such functionally poor oils and thereby contributing human health [2,8,9]. The purpose of this paper is to report a practical procedure to fortify functionally low grade conventional edible oils to functionally enriched edible oils using dried vegetable-waste residues such as tomato juice waste, and wine-ferment-residues, or other vegetable-waste residues.Methods: (1) Preparation and measurements of lycopene and carotenoid enriched oils. To 5.0g or 1.0g of the dried residue of tomato juice waste, 100ml of commercial rape seed (canola) oil was added respectively. Each mixture was incubated at room temperature in dark for several weeks. Amount of lycopene and carotenoids extracted into the oil was monitored by increase of absorption (400-550nm) and fluorescence at 470nm of carotenoid. Grape-juice ferment (wine) waste was similarly prepared after hot air drying, and immersed in canola oil.(2) Evaluation of function-enriched edible oils: Preventive effect of lipid peroxidation;(a) Heat exposure: Commercial rape-seed oil and extra virgin oil were used as controls. For preparation of the test samples (function fortified oils) of tomato-juice waste-residue and grape wine- ferment waste-residues, it is described in above section (1). All oil preparations were exposed to high temperature at 150oC and peroxide value (POV), acid value and TBARS were measured at various times as described. The methods of measurements of POV, acid value and TBARS were adapted conventional standard method described elsewhere. (b) Light exposure: Similar to (a) they were exposed to excessive light using Nippon Ikaga Kikai (Tokyo), LH-200-RDS equipped with fluorescent light tube (x3), NEC FL40S-2XN, 3.2K lux at 390-730nm. Result and Discussions: (1) Extraction of carotenoids etc.Modern edible oil refining processes are highly elaborated and efficient. The most of the commercial edible oils in the market are so purified that many important antioxidant components are mostly removed during refining process. Oils became mostly colorless and odorless; and they lack are devoid of anti-oxidative or radical scavenging components. We measured anti-alkyl peroxy radical (ROO.)-scavenging activity, and found that many commercial oils have very little such activity (Figure 1).Many disposal- of tomato juice or extraction waste-residues in wine making, yet contained significant amount of functionally useful components that may be recovered by immersing the dried waste residues in the functionally poor oil, ie., low grade oils. Figure 2A, B shows it was indeed possible to recover such component like lycopene and carotenoids, and the spectrum of this oil exhibits multiple peaks correspond tomato lycopene.(2) Antioxidation activity:(a) Acid value after light and heat exposure. Commercial highly purified edible oils are vulnerable for oxidation and resulting in lipid or alkyl hydroperoxides formation (ROOH), which undergo formation lipid (alkyl) peroxyl radicals which (ROO.) in the presence of heme or other metallic compounds (ROOH à ROO.) (Figure 1) [5, 11]. This peroxyradical can break DNA/RNA or damage proteins and lead to cell death [4-7, 11].Time course of carotenoids extraction into the purified canola oil, in which 1 or 5% (dry wt/wt) of tomato juice waste-residue yielded a significantly high carotenoid values, and extraction reached a plateau in about two to three weeks (Fig. 2A). The absorption spectrum shows multiple peaks corresponding lycopene (Fig. 2B). (b) Anti-POV after heat and light exposure. Upon exposure to oxidation condition, POV was significantly suppressed to 25% after 5 hrs at 150oC and light exposure (above) to the 5% (w/w) tomato-residue-treated oil, and showed suppression of POV to about 25% (net) at 5 hrs (Fig. 3). (c) TBARS value after light and heat exposure. Figure 4C, D shows results of function fortified effect in oils treated with tomato- and wine ferment-waste-residues. They also showed significant suppression against the increase of acid value and POV (Figure 4A, B), which is consistent with absorption spectra.These results indicate antioxidant components in dried tomato juice-waste-residues and wine ferment waste-residues were extracted into commercial low functional grade rapeseed oil. The results warrant a simple procedure to convert low quality edible oils to function-enriched high grade oils. The procedure not only prevents oxidation of oils, but also beneficial in providing various functional components such as polyphenolics, flavonoids, carotenoid, or lycopene. This method and products thus obtained will ultimately benefit human health such as prevention of cancer and inflammation [8, 9, 11]. We have previously published that alkyl peroxyradical facilitates promotion step in carcinogenesis, and it was suppressed by various vegetable soup extracts, thus in suppressing promotion step in multistep carcinogenesis [2, 4, 10]. The step may be related to the suppression of inflammatory process as well via activation of cyclooxygenase I and i-NOS, as well as tumor necrosis factor [8, 9].In the manufacturing traditional Japanese rape-seed (canola) oil, the seeds were roasted at high temperature. We found during this heating process, new antioxidant component (canolol), which is a potent scavenger of alkylperoxyl radical and peroxinitrite (ONOO-), was efficiently generated, and the oil became much healthier benefit than highly purified rape seed oil in the market, which are prepared by hexane extraction and other purification steps.In these few decades’ vegetable oils are considered not healthy dietary components. This is probably due to preciously important antioxidants components, which originally did exist as intrinsic components in the seeds, were removed so effectively during manufacturing and purification processes. As a result, vegetable oils became prooxidant or procarcinogen, and thus unfavorable food staff. Now our method described herein provide easy enrichment procedure for functional components utilizing wasted residues of vegetable including wine and juice making.Keywords: antioxidative components, enrichment of edible oils, lipid oxidation, dried vegetable-waste-residues.
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Gaiya, D. D. "CHARACTERIZATION OF OIL AND CAKE FROM Spirogyra porticallis." Biotechnologia Acta 14, no. 3 (June 2021): 54–61. http://dx.doi.org/10.15407/biotech14.03.054.
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Aim. Search of healthy and edible alternative oils from algae. Such oil provides many health benefits mainly because of docosahexaenoic acid (DHA) form of omega-3 fattyacids and some other micro nutrients in smaller amounts. Methods. Soxhlet extraction method was used to extract the oil with n-hexane as the solvent. The proximate composition was determined by AOAC methods, while the mineral contents were determined by AAS. FTIR and UV-Visible spectra of the oil were run using Agilent- FTIR Spectrometer and UV-Visible Spectrophotometer respectively. Results. The oil yield was very low (1.05%). The proximate composition reveals carbohydrate as the major nutrient in the residue (79.18%), others include lipid (8.03%), crude protein (5.00%), moisture (2.78%), crude fibre (3.01%) and ash (2.00%). The mineral composition reveals high amount of potassium (1602.5 mg/100g) and calcium (632.5 mg/100g) with low levels of phosphorous (14.9 mg/100g) and sodium (12.8 mg/100g). The FTIR spectrum of algae oil is similar to the normal vegetable oil. Stretching vibrations at 2922.2 cm-1 and 2855 cm-1 are attributed to methylene (-CH2--) and methyl (-CH3) groups while absorption bands at 1710 cm-1 and 1744 cm-1 showed carboxylic groups for algae oil and vegetable oil (control) which was attributed to C=O stretching vibrations (esters). The UV-Visible spectrum of algae oil showed two peaks at 408 nm and 660 nm for carotenoids and chlorophyll A respectively, which corroborate with previous studies. Conclusions. We conclude that the oil and cake characterized from Spirogyra porticallis has great potential for medicinal and nutritional usage.
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Shumi, Lema Deme, and Ebise Getacho Bacha. "Studies on Modeling and Physicochemical Properties of Oil Extracted from Moringa stenopetala Seed." Advances in Materials Science and Engineering 2022 (February 8, 2022): 1–9. http://dx.doi.org/10.1155/2022/4539533.
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Moringa stenopetala, locally known as Shiferraw, is an indigenous vegetable tree native to southern Ethiopia and grown mainly for its food value. This study deals with the investigations of physicochemical characteristics of Moringa stenopetala seeds’ oil extracted using solvent extraction with food-grade hexane as a solvent and Analysis of Variance (ANOVA) of the extraction parameters. The seeds were collected from Adama located in Oromia, East Shewa Zone of Ethiopia, and they exhibit the average moisture, ash, fiber, protein, and oil contents of 6.3, 4.2, 2.3, 27.5, and 40.2%, respectively. Temperature, extraction time, and particle size had a significant p < 0.05 effect on the oil yield. According to the Experimental Design Response Surface Methodology (RSM) and ANOVA analysis, the optimum process parameters’ combination to find the highest oil yield was particle size of 0.83 mm, the temperature at 78.82°C, and extraction time of 5.13 hours. The model predicted oil yield was 39.7 ± 0.32%. The oil from Moringa stenopetala seed exhibits physiochemical characteristics of refractive index (40°C), 1.4625; viscosity 49.4 Cp; density at 25 °C, 0.9317 g/cm−3; saponification value, 191.4; peroxide value, 11.52 millieq O2/kg; iodine value of 89.21; and Acid Value (AV) 2.21 mg KOH/g. Fourier-transform infrared spectroscopy (FT-IR) analysis shows that the oil contains both ester carbonyl (C=O) functional groups saturated and unsaturated fatty acid. The physicochemical properties of Moringa stenopetala seeds were compared with other edible oil properties such as sesame, groundnut, olive, and sunflower seeds. The result shows that in the future Moringa stenopetala could be used as a substitute for other oil-bearing seeds sources, such as soybean, sunflower, and groundnut.
Dissertations / Theses on the topic "Vegetable oil and protein extraction"
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Добрунов, Дмитро Євгенійович. "Технологія комплексної переробки соняшникової макухи з безлушпинного ядра." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21793.
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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.18.06 – технологія жирів, ефірних масел і парфумерно-косметичних продуктів. – Національний технічний університет "Харківський політехнічний інститут" Міністерства освіти і науки України, Харків, 2016.
Дисертацію присвячено науковому обґрунтуванню технології комплексної переробки соняшникової макухи з безлушпинного ядра.
Встановлено залежність ступеню вилучення олії і хлорогенової кислоти з соняшникової макухи безлушпинного ядра від складу розчинника, температури та тривалості екстрагування у кавітаційній установці та отримано математичний опис цього процесу у вигляді регресійного рівняння. Виявлено антиоксидантні властивості сухих речовин екстрактів соняшникової макухи безлушпинного ядра. Показано, що досліджені екстракти інгібують ланцюгові вільно-радикальні реакції окиснення. Розроблено перспективну технологію комплексної переробки соняшникової макухи з безлушпинного ядра, за якою можна отримати: олію екстракційну, шрот (або борошно) та жиророзчинний рослинний антиоксидант. Результати роботи впроваджені на ТОВ "Нові енергозберігаючі технології" (м. Херсон), ПАТ "Харківська бісквітна фабрика" (м. Харків) та в навчальний процес кафедри технології жирів та продуктів бродіння НТУ "ХПІ".Thesis for a candidate of technical sciences degree. Speciality 05.18.06 − fats, essential oils and perfume-cosmetic products technology − National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2016. The dissertation is devoted to the basis of technology of complex processing of sun-flower cakes obtained from dehulled sunflower kernels. During the work it was ascertained that sunflower oil and chlorogenic acid extraction rates depend on solvent type, temperature, and extraction time in the cavitation facility. The regression equations for the abovementioned processes were derived. Antioxidant properties of solids extracts obtained from dehulled sunflower kernels (SE) were discovered. It was shown that all of the investigated SE terminate the chain reactions during the propagation step. Complex technology of sunflower cakes processing obtained from dehulled sunflow-er kernels was designed. This technology allows obtaining of extracted oil, sunflower meal (or proteinrich flour), and fat-soluble antioxidant. The results of the work are adopted at "New Energy-Efficient Technologies", LLC, "Kharkiv Biscuit Factory", OJSC, and implemented in the educational process at the Department of Technology of Fats and Fermentation Products of NTU "KhPI".
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Добрунов, Дмитро Євгенійович. "Технологія комплексної переробки соняшникової макухи з безлушпинного ядра." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21784.
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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.18.06 – технологія жирів, ефірних масел і парфумерно-косметичних продуктів. – Національний технічний університет "Харківський політехнічний інститут" Міністерства освіти і науки України, Харків, 2016.
Дисертацію присвячено науковому обґрунтуванню технології комплексної переробки соняшникової макухи з безлушпинного ядра.
Встановлено залежність ступеню вилучення олії і хлорогенової кислоти з соняшникової макухи безлушпинного ядра від складу розчинника, температури та тривалості екстрагування у кавітаційній установці та отримано математичний опис цього процесу у вигляді регресійного рівняння. Виявлено антиоксидантні властивості сухих речовин екстрактів соняшникової макухи безлушпинного ядра. Показано, що досліджені екстракти інгібують ланцюгові вільно-радикальні реакції окиснення. Розроблено перспективну технологію комплексної переробки соняшникової макухи з безлушпинного ядра, за якою можна отримати: олію екстракційну, шрот (або борошно) та жиророзчинний рослинний антиоксидант. Результати роботи впроваджені на ТОВ "Нові енергозберігаючі технології" (м. Херсон), ПАТ "Харківська бісквітна фабрика" (м. Харків) та в навчальний процес кафедри технології жирів та продуктів бродіння НТУ "ХПІ".Thesis for a candidate of technical sciences degree. Speciality 05.18.06 − fats, essential oils and perfume-cosmetic products technology − National Technical University "Kharkiv Polytechnic Institute". Ministry of Education and Science of Ukraine, Kharkiv, 2016. The dissertation is devoted to the basis of technology of complex processing of sun-flower cakes obtained from dehulled sunflower kernels. During the work it was ascertained that sunflower oil and chlorogenic acid extraction rates depend on solvent type, temperature, and extraction time in the cavitation facility. The regression equations for the abovementioned processes were derived. Antioxidant properties of solids extracts obtained from dehulled sunflower kernels (SE) were discovered. It was shown that all of the investigated SE terminate the chain reactions during the propagation step. Complex technology of sunflower cakes processing obtained from dehulled sunflow-er kernels was designed. This technology allows obtaining of extracted oil, sunflower meal (or proteinrich flour), and fat-soluble antioxidant. The results of the work are adopted at "New Energy-Efficient Technologies", LLC, "Kharkiv Biscuit Factory", OJSC, and implemented in the educational process at the Department of Technology of Fats and Fermentation Products of NTU "KhPI"
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Hamzat, Kadri Obafemi. "A semi-mechanistic model based on oil expression from groundnuts." Thesis, Cranfield University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333986.
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Hanmoungjai, Prasert. "Aqueous and exzymatic extraction of oil and protein from rice bran." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343328.
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Campbell, Kerry Alan. "Protein and oil recoveries from enzyme-assisted aqueous extraction of soybeans and sunflower seed." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3403074.
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Nguyen, Quang Hung. "Study on bioaccumulation and integrated biorefinery of vegetable oil and essential oil of Coriander (Coriandrum sativum L.)." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/16038/1/Nguyen_QH.pdf.
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Apiaceae could be defined as Aroma Tincto Oleo Crops (ATOC), e.g. plants containing both vegetable oil and essential oil. Applying agroreffinery concept to ATOC led to propose a sequential fractionation process coupling co-extraction of vegetal oil and essential oil to a valorization of by-product residues as biosourced active molecules and substrates for designing agromaterials. The aim of this thesis is to determine the biological and technological feasability of application of the ATOC-refinery concept to coriander (Coriandrum sativum L.) Chapter I reports a bibliographic state of the art study on extraction and characterisation of coriander vegetal oil and essential oil while chapter II describes materials and methods setting up during the thesis for sampling, extraction, analysis and data processing. Chapter III focus on the study of major various biological parameters influencing bioaccumulation of vegetal oil and essential oil in coriander (different plant varieties, different plant organs, different biological stages) and their impact on anti-oxidant activity of extracts obtained from extraction residues. In chapter IV, coriander fruits are processed by extrusion technology (mono screw and twin-screw extruder) in order to evaluate the feasability of mechanical pressing for extracting a flavored vegetal oil. Influence of operating parameters on vegetal oil extraction yields (nozzle diameter and nozzle/screw distance (single-screw extruder) or screw configuration, device’s filling coefficient and pressing temperature (twin-screw extruder)) is studied while the feasability of valorization of extraction cake as agromaterial (thermopressing) was stated.
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Sicaire, Anne-Gaëlle. "Solvants alternatifs et techniques innovantes pour l'éco-extraction des huiles végétales à partir de graines oléagineuses." Thesis, Avignon, 2016. http://www.theses.fr/2016AVIG0260.
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Ces dernières années, l’intérêt croissant porté aux considérations environnementales et à la sécurité des procédés pose la question de l’utilisation de solvants pétrochimiques nocifs non renouvelables tels que l’hexane, mais aussi de la quantité d’énergie investie dans le procédé de trituration des graines oléagineuses. L’objectif de cette thèse a donc consisté en la recherche et le développement de procédés d’éco-extraction d’huile végétale, issue de graines oléagineuses, grâce à des technologies innovantes (ultrasons et micro-ondes) et des solvants alternatifs plus respectueux de la santé et de l’environnement. La première partie de ce manuscrit propose en premier lieu l’optimisation du procédé d’extraction à l’hexane d’huile de colza à partir d’écailles de pression avec des ultrasons. Bien que ceux-ci aient un impact positif sur les rendements, le temps d’extraction et la consommation de solvant, l’utilisation de l’hexane reste problématique. Dans une deuxième partie, la substitution de l’hexane par des solvants alternatifs plus « verts » a donc été considérée. Une première approche expérimentale a été complétée par une approche prédictive grâce à l’utilisation d’outils d’aide à la décision : les paramètres de solubilité de Hansen et le modèle COSMO-RS. Cette démarche a conduit à la sélection d’un solvant, le 2-méthyltétrahydrofurane, pour la réalisation d’une étude complète allant de l’échelle laboratoire à l’échelle pilote. Dans une troisième et dernière partie, la combinaison de solvants alternatifs avec une technique innovante, les micro-ondes, pour l’extraction d’huile colza à partir d’écailles de pression a été envisagée. Cette étude a mis en évidence l’intérêt des micro-ondes dans le cas d’une sélectivité de chauffage entre la biomasse et le solvantIn recent years, the growing interest in environmental considerations and process safety raises the issue of the use of non-renewable petrochemical harmful solvents such as hexane, but also the amount of energy invested in the process of oilseed crushing. The objective of this thesis has consisted in the research and development of green extraction processes of vegetable oil from oil seeds through innovative technologies (ultrasonic and microwave) and alternative solvents more respectful of health and environment. The first part of this manuscript describes the optimization with ultrasound of the extraction process, using hexane, of oil from rapeseed cake. Although ultrasound have a positive impact on extraction yield, extraction time and solvent consumption, the use of hexane remains questionable. In the second part, substituting hexane by "green" alternative solvents has been considered. A first experimental approach was supplemented by a predictive approach through the use of decision tools: Hansen solubility parameters and COSMO-RS model. This led to the selection of a solvent, 2-methyltetrahydrofuran, for conducting a comprehensive study from laboratory to pilot scale. In a third and final part, the combination of alternative solvents with an innovative technology, microwaves, for the extraction of oil from rapeseed cake was investigated. This study highlighted the benefit of microwaves in the case of a selective heating between biomass and solvent
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AL-Amery, Maythem. "IMPACT OF A HIGH OIL AND PROTEIN ON AGRONOMIC TRAITS AND OVERALL SEED COMPOSITION IN SOYBEAN." UKnowledge, 2017. https://uknowledge.uky.edu/pss_etds/97.
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New soybean lines have been developed with significantly higher oil, protein + oil and higher meal protein. These soybeans contain a VgD1 gene (highly active acyl-CoA:diacylglycerol acyltransferase, DGAT from Vernonia galamensis (VgDGAT1A) produces much higher oil synthesis and accumulation activity in soybean. Soybean with active DGAT from Vernonia galamensis (VgDGAT1A) has active TAG biosynthesis relative to other DGATs including from soybeans and Arabidopsis. DGATs catalyze the final step of TAG synthesis: DAG (diacylglycerol) + acyl-CoA → TAG + CoASH (Coenzyme A is notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle). A thorough analysis of the major components in VgD1 lines, especially those of nutritional or anti-nutritional value including what else changed (decreased); and what remained at normal levels was conducted. A field study was conducted in Spindletop and Princeton KY, reviled no reduction in yield nor protein, and about 4 % (DW) more oil was obtained in Princeton and 2% (DW) in Spindeltop. No consistent reduction in the other seed composition.VgDGAT1A soybean lines indicated noticeably early maturation compared to the parental line. This is associated with higher expression of the flowering genes FT2 (FLOWERING LOCUS T2) and FT5 (FLOWERING LOCUS T5), for the high oil lines. A single recessive mutation in soybean (MIPS) myo-inositol 1-phosphate synthase, confers a seed phenotype of increase inorganic phosphate (Pi) crossed with high oil lines expressing a DGAT from Vernonia galamensis (VgDGAT1A) (VgD). The oil and protein were maintained compart to VgD. VgD X MIPS (VM), had 21.2, and 22 % oil in 2015, and 23.3 and 24.0 oil in 2016, and protein 46, 49 in 2015, and 37 and 39 % in 2016. Phosphate results suggesting the cross MV is still segregating for MIPS and more selection and planting are needed.
Measurement of seed phosphate levels is an established technique for screening for low phytate mutants but to date, it has not been performed non-destructively from single soybean seeds. A protocol was developed greatly reducing the sample size thereby reducing the cost and time and saving a generation in the selection of low phytate mutant seeds based on the high Pi phenotype.
Genotyping single seeds are useful in breeding and genetics while maintaining high germination rates. Nondestructive single-seed genomic DNA extraction protocols using 12 mg cotyledon tissue with a modified cetyl trimethyl ammonium bromide (CTAB) technique and a commercial seed DNA extraction kit using 1 mg cotyledon tissue were developed for dry soybean seeds and cross-verified with leaf DNA analysis.
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Bamerni, Fanar. "Plant-based (Camelina Sativa) biodiesel manufacturing using the technology of Instant Controlled pressure Drop (DIC) : process performance and biofuel quality." Thesis, La Rochelle, 2018. http://www.theses.fr/2018LAROS004/document.
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La présente étude a eu pour objectif la comparaison de la fabrication du biodiesel à partir de graines de caméline suivant les procédés conventionnels ou assistés/intensifiés par Détente Instantanée Contrôlée (DIC). La caméline est l'une des matières premières les plus adaptées à la fabrication de biodiesel puisqu’elle ne présente aucune concurrence aux cultures alimentaires et/ou à l’utilisation des terres agricoles. Son intérêt réside en sa teneur élevée en huile, sa courte saison de culture, ainsi que sa grande capacité à enrichir les sols pauvres, arides ou semi-arides. L'insertion de la texturation par DIC permet l'intensification à la fois de 1/ l'extraction de l’huile suivie de transestérification et 2/ du processus de transestérification in-situ en une seule étape. Dans les deux cas, les analyses statistiques ont conduit, à l'aide de la méthode de surface de réponse (RSM), à des modèles mathématiques empiriques adéquats capables de mieux développer les résultats expérimentaux, d'optimiser les paramètres de traitement et de mieux définir le changement d’échelle. Le procédé DIC se distingue par son aptitude à réaliser avec succès l’expansion structurelle des produits naturels sans affecter la qualité des huiles et des carburants produits. L'augmentation de la quantité d'huile extraite après texturation des graines par DIC a été de 38% et 22%, respectivement pour le pressage et l'extraction par solvant. En mode ISTE, la texturation DIC a permis de doubler le rendement en FAMEs. En outre, la technologie DIC est une technique très économique en raison de la grande capacité de traitement due au faible temps d’opération et d’une consommation réduite d'énergieThe objective of this study was to compare the production of biodiesel from Camelina seeds using conventional methods or assisted/intensified by Instant Controlled Pressure-drop DIC. Camelina is one of the most suitable feedstocks for biodiesel production as it does not compete with food crops and/or agricultural land use. Its interest lies in its high oil content, short growing season, and great ability to enrich poor, arid or semi-arid soils. The insertion of texturing by DIC allows the intensification of both 1/ extraction of the oil followed by transesterification and 2/ a single step in-situ transesterification process. In both cases, using the response surface method (RSM), statistical analyzes have led to adequate empirical mathematical models capable of better developing experimental results, optimizing treatment parameters and better define the scaling-up. The DIC process stands out for its ability to successfully achieve the structural expansion of natural products without affecting the quality of sensitive compounds such as oils and fuels produced. The increase in the amount of oil extracted after DIC texturing of seeds was 38% and 22% for pressing and solvent extraction, respectively. In ISTE mode, DIC texturing approximately doubled FAMEs yields (98% increased yields). In addition, DIC technology is a very economical technique due to its high processing capacity, low operating time, and weak energy consumption
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Romuli, Sebastian [Verfasser]. "Process optimisation of oil and protein recovery from Jatropha curcas L. seeds in terms of hulling, shelling and mechanical extraction for improved efficiency and product quality / Sebastian Romuli." Aachen : Shaker, 2017. http://d-nb.info/1149278633/34.
Full textBooks on the topic "Vegetable oil and protein extraction"
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Gordon, A., S. W. Head, and A. A. Swetman. Small-Scale Vegetable Oil Extraction. Hyperion Books, 1995.
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Secretary of State's Guidance - Vegetable Oil Extraction and Fat and Oil Refining Processes. Stationery Office Books, 1992.
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Maj, Dorota. Modyfikujący wpływ roślinnych dodatków paszowych na użytkowość mięsną i ekspresję wybranych genów u królików w zależności od wieku i płci. Publishing House of the University of Agriculture in Krakow, 2017. http://dx.doi.org/10.15576/978-83-66602-29-8.
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The aim of the study was to determine the effect of feed additives (algae, soybean, and sunflower oil) used in the rabbit feed on: growth indices and slaughter traits, pH, colour, texture, chemical composition, fatty acid profile and oxidative stability (TBARS) of the meat as well as FTO and FABP4 genes expression in the meat’s intramuscular fat (m. longissimus lumborum), depending on the age and sex. The experimental material consisted of Termond White rabbits (n = 160, 80 females and 80 males). Animals were weaned on the 35th day of life, and housed in metal cages arranged in batteries (4 rabbits of the same sex in a cage). From weaning to 12 or 18 weeks of age, the rabbits were fed pellets ad libitum. Animals in the control group (C) received non-supplemented pellets throughout the experiment. In the other groups, the pellet contained 1% algae (A), 3% sunflower oil (OS), and 3% soybean oil(SO).The experimental diets were formulated to have similar protein and energy content. Diets were balanced by lowering the proportion of other feed components. The total share of all components remained at 100%. The results indicate that 3% vegetable oils (soybean or sunflower) supplementation of diets for growing rabbits leads to an increase of body weight and improvement of some of the slaughter traits, while 1% addition of algae to the feed causes deterioration of body weight and slaughter traits. The effect of oil additive depends on the animals’ age. Supplementation of the rabbits’ diet with algae (1%) or sunflower and soybean oils (3%) led to an increase in the dressing percentage of rabbits slaughtered at 18 weeks of age (approx. 3%), but had no effect on the dressing percentage of rabbits slaughtered at 12 weeks of age. Feeding pellets with either 3% vegetable oils or 1% algae additive to the rabbits did not significantly change the chemical composition of the meat. Protein content increased and intramuscular fat content decreased with age, while ash and water content were similar. The feed additives significantly differentiated meat acidity without deteriorating meat quality. Diet modification has not affected negatively meat colour. 24 h after the slaughter, the colour of rabbit meat was similar across the studied feeding groups. Correlation between diet and rabbits’ age was found. Meat texture (hardness, springiness and chewiness) of all rabbit groups slaughtered at 12 weeks of age was similar, and the shear for cewas greater in rabbits fed pellets with algae and soybean oil. At 18 weeks of age, rabbit meat from experimental groups had lower hardness and chewiness, compared to meat of the animals from the control group. Meat shear force was higher in the control group, and from algae-supplemented group. The correlation between diet and age was also found. The use of 3% vegetable oils or 1% algae as feed additives significantly reduced meat oxidative stability. Soybean or sunflower oil (3%) usedas feed additives favourably modified the fatty acid composition of intramuscular fat. Polyunsaturated fatty acids (PUFA) content was increased, including linoleic acid, and PUFA/MUFA ratio was improved. The content of these acids decreased with age. The use of algae (1%) as a feed additive resulted in positive effect on the increase of n-3 fatty acid content (EPA and DHA) in meat intramuscular fat. Algae supplementation improved pro-health properties of meat, with low n-6/n-3 acid ratio (2.5), indicating that diet modification may affect the fatty acid composition of rabbit meat. The influence of diet and age on FTO and FABP4 gene expression in meat intramuscular fat (m. longissimus lumborum) was found. FTO and FABP4 gene expression increased with age and was the highest in the group of rabbits with 1% algae supplementation in the diet. The effect of rabbits’ gender on growth, slaughter traits, meat quality and gene expression in rabbits was not observed. In conclusion, the use of natural feed additives, such as sunflower, soybean oil or algae, can improve the nutritional value of rabbit meat, without changing its chemical or physical properties, and therefore the meat can serve as functional food, with properties beneficial to human health. The results obtained in this study also indicate that the expression of FTO and FABP4 genes in rabbit muscles is regulated by dietary factors and age, which, in addition to cognitive significance, has practical implications for improving technological and dietary quality of rabbit meat.
Book chapters on the topic "Vegetable oil and protein extraction"
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Pirie, N. W. "The Bulk Extraction and Quality of Leaf Protein." In Vegetables and Vegetable Products, 1–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-84830-8_1.
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Regitano-d’Arce, Marisa Aparecida Bismara, Naiane Sangaletti-Gerhard, and Larissa Braga Bueno-Borges. "Bioethanol as the Sole Solvent for Vegetable Oil Extraction and Biodiesel Production." In Knowledge-Driven Developments in the Bioeconomy, 325–41. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58374-7_17.
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Ozer, Richard W. "Algae Drying and Extraction." In Green Vegetable Oil Processing, 81–105. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-9888565-3-0.50008-x.
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Wong, Marie, Laurence Eyres, and Leandro Ravetti. "Modern Aqueous Oil Extraction—Centrifugation Systems for Olive and Avocado Oils." In Green Vegetable Oil Processing, 19–51. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-9888565-3-0.50005-4.
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Moreau, Robert A., David B. Johnston, Kevin B. Hicks, and Michael J. Haas. "Aqueous Extraction of Corn Oil After Fermentation in the Dry Grind Ethanol Process." In Green Vegetable Oil Processing, 53–72. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-9888565-3-0.50006-6.
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Baianu, I., T. You, D. Costescu, P. Lozano, V. Prisecaru, and R. Nelson. "High-Resolution Nuclear Magnetic Resonance and Near-Infrared Determination of Soybean Oil, Protein, and Amino Acid Residues in Soybean Seeds." In Oil Extraction and Analysis. AOCS Publishing, 2004. http://dx.doi.org/10.1201/9781439822340.ch11.
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Baianu, I. C., T. You, D. M. Costescu, P. R. Lozano, V. Prisecaru, and R. L. Nelson. "High-Resolution Nuclear Magnetic Resonance and Near-Infrared Determination of Soybean Oil, Protein, and Amino Acid Residues in Soybean Seeds." In Oil Extraction and Analysis, 193–240. AOCS Publishing, 2019. http://dx.doi.org/10.1201/9780429104527-11.
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Batista, Eduardo, Cintia Gon√ßalves, Antonio Meirelles, and Christianne Rodrigues. "Liquid‚ÄìLiquid Extraction Applied to the Processing of Vegetable Oil." In Extracting Bioactive Compounds for Food Products, 219–67. CRC Press, 2008. http://dx.doi.org/10.1201/9781420062397.ch5.
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IKAWA, NOBORU, SATOSHI FURUTA, RYUICHI FUKUZATO, NOBUYUKI IMANISHI, HIDEAKI KAWANA, MASATA MITSUIKI, and HIROHISA SUZUKI. "Separation of Polyunsaturated Fatty Acid from Vegetable Oil by Supercritical Fluid Extraction and Chromatography." In Solvent Extraction 1990, Part B, 1707–12. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-88677-4.50101-x.
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Zheng, Yan, Nisi Gao, Juan Wu, and Baoru Yin. "Rice Bran Protein: Extraction, Nutraceutical Properties, and Potential Applications." In Rice Bran and Rice Bran Oil, 271–93. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-812828-2.00011-1.
Full textConference papers on the topic "Vegetable oil and protein extraction"
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Chaiyasit, Jinnapat, Nanthorn Paorach, Natthariga Laothamteep, Ekawan Luepromchai, and Onruthai Pinyakong. "Screening of Biosurfactant-Producing Bacteria and its Application for Vegetable Oil Extraction." In 14th Asia Pacific Confederation of Chemical Engineering Congress. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-1445-1_696.
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Machida, Kazunori, Juliana Leite Nobrega de Bell, and Fernanda Furlan Goncalves Dias. "Effects of Enzymatic Extraction of Oil and Protein from Chickpea Flour on Protein Functionality." In Virtual 2021 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2021. http://dx.doi.org/10.21748/am21.594.
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"Aqueous enzymatic extraction of oil and protein from microalgae: Enzyme screening and assay optimization." In 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152190194.
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Ismahene, Haloui, Meskaldji Hiba, Bourayou Ghada, Benlouad Romaissa, and Meniai Abdeslam-Hassen. "Ultrasonic assisted extraction of vegetable oil from Chia seeds (Salvia hispanica L.) and its antioxidant and anti-diabetic activities." In 2021 12th International Renewable Energy Congress (IREC). IEEE, 2021. http://dx.doi.org/10.1109/irec52758.2021.9624813.
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Serdyuk, V. A., T. A. Maltseva, T. I. Tupolskih, and S. A. Lomakina. "TENDENCIES OF RESOURCE-SAVING TECHNOLOGIES IN THE FIELD OF SEPARATION OF OIL RAW MATERIALS." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS Volume 2. DSTU-Print, 2020. http://dx.doi.org/10.23947/interagro.2020.2.602-605.
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The article presents an analysis of the production and consumption of vegetable oil in the period 2016-2019. The analysis of the use of waste oil and fat industry. The classification of rests obtained at different stages of sunflower cleaning in preparation for oil extraction is presented. Promising areas of resource-saving technologies in the field of separation of oilseed waste were identified.
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Torres, Hannah, Kayla Camacho, and Nelson Macken. "A Life Cycle Assessment of Biodiesel Fuel Produced From Waste Cooking Oil." In ASME 2020 Power Conference collocated with the 2020 International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/power2020-16240.
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Abstract Biofuels have received considerable attention as a more sustainable solution for transportation fuels. Used vegetable oil, normally considered a waste product, has been suggested as a possible candidate. Herein we perform a life cycle assessment to determine the environmental impact of biodiesel fuel produced from waste vegetable oil. We present a cradle to fuel model that includes the following unit processes: growing and harvesting, soy oil processing, cooking, waste vegetable oil refining, transesterification to produce biodiesel fuel and transportation when required. For growing and harvesting, national historical data for yields, energy required for machinery, fertilizers (nitrogen, phosphorous and potassium), herbicides, pesticides and nitrous oxide production are considered. In soy oil processing, crushing and extraction using hexane are included. For cooking, typical fryer performance and food production are considered. In order to determine a mass balance for the cooking operation, oil carryout and waste oil removal are estimated. During waste oil refining, oil is filtered and water removed. Methanol and a catalyst are used in the process of transesterification with glycerin as a byproduct. Transportation is considered using diesel trucks. Data from GREET is used throughout to compute global warming potential (GWP) and energy consumption in terms of cumulative energy demand (CED). Mass allocation is applied to the soy meal produced in refining, oil utilized for cooking and glycerin produced during transesterification. Results are compared to traditional diesel fuel and gasoline. Individual processes are examined to determine possibilities for reduction of GWP and CED. Suggestions are made for improvements in environmental impact using alternative or more efficient methods. The study should provide useful information on the sustainability of biodiesel fuel produced from waste cooking oil.
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Spencer, Sierra, Malia Scott, and Nelson Macken. "A Life Cycle Assessment of Biofuel Produced From Waste Cooking Oil." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86301.
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Biofuels have received considerable attention as a more sustainable solution for heating applications. Used vegetable oil, normally considered a waste product, has been suggested as a possible candidate. Herein we perform a life cycle assessment to determine the environmental impact of using waste vegetable oil as a fuel. We present a cradle to fuel model that includes the following unit processes: soybean farming, soy oil refining, the cooking process, cleaning/drying waste oil, preheating the oil in a centralized heating facility and transportation when required. For soybean farming, national historical data for yields, energy required for machinery, fertilizers (nitrogen, phosphorous and potassium), herbicides, pesticides and nitrous oxide production are considered. In soy oil refining, steam production using natural gas and electricity for machinery are considered inputs. Preprocessing, extraction using hexane and post processing are considered. In order to determine a mass balance for the cooking operation, oil carryout and waste oil removal are estimated. During waste oil processing, oil is filtered and water removed. Data from GREET is used to compute global warming potential (GWP) and energy consumption in terms of cumulative energy demand (CED). Mass allocation is applied to the soy meal produced in refining and oil utilized for cooking. Results are discussed with emphasis on improving sustainability. A comparison is made to traditional fuels, e.g., commercial fuel oil and natural gas. The production of WVO as fuel has significantly less global warming potential but higher cumulative energy consumption than traditional fuels. The study should provide useful information on the sustainability of using waste cooking oil as a fuel for heating.
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Torres, Hannah, and Nelson Macken. "Methods of Dealing With Co-Products in a Life-Cycle Assessment of Biodiesel Fuel Produced From Waste Cooking Oil." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-69292.
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Abstract Biodiesel fuel has received considerable attention as a more sustainable alternative to traditional fuel. This paper presents a life cycle assessment (LCA) for producing biodiesel fuel from waste vegetable oil (WVO). Comparisons are made for different methods of dealing with additional products. The LCA is a cradle to fuel model that includes the following unit processes: soybean farming, soy meal and soy oil extraction, processing of soy oil, cleaning/drying waste oil, transesterification to produce useful biodiesel and transportation to various sites. Metrics evaluated to determine sustainability include global warming potential (GWP) and cumulative energy demand (CED). Values are obtained using GREET1. Credits for additional products must be applied in the LCA. WVO is a byproduct of oil produced for cooking fried products. We account for oil consumed in the cooking process using two approaches. In the first approach, the amount of oil consumed in the cooking process is credited to the WVO. All the cooking oil is considered WVO. In the second approach, the WVO is considered a “free” product. This means only the CED and GWP associated with WVO transportation, processing and transesterification are included in the LCA. Other co-products are considered applying two traditional methods used in LCA: mass-based allocation and displacement. In mass-based allocation, CED and GWP are adjusted considering the mass fraction of soy oil produced from soybeans and the mass fraction of biodiesel produced from WVO in the transesterification process. In the displacement method, soymeal is considered to displace soybeans as animal feed and glycerin displaces synthetic glycerin. The CED and GWP of the displaced products are subtracted as credits. LCA results for the various approaches to additional products are compared. We demonstrate a wide range of results are possible. These results should provide useful information for dealing with additional products in determining the sustainability of producing biodiesel fuel from waste vegetable oil.
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Radovanović, Mirjana, Dalibor Tomić, Vesna Đurović, Miloš Marjanović, Radmila Ilić, and Vera Katanić. "HLADNO PRESOVANА ULJA TIKVE I ORAHA." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.515r.
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The aim of this study was to analyze the properties of cold pressed pumpkin and walnut oil. Pumpkin and walnut are plant crops that have a long tradition of cultivation in Serbia, but are insufficiently used for oil production. Cold pressed oils have a high nutritional and market value. The production of cold-pressed oils is more environmentally friendly, simpler, and the oils retain important nutrients, compared to producing oils by extraction and refining. Pumpkin seed oil is characterized by a high content of polyunsaturated fatty acids in relation to the content of monounsaturated and saturated fatty acids. The dominant fatty acid is oleic or linoleic. Oils with a higher proportion of oleic acid are more oxidatively stable. Specifically, pumpkin oil is dominated by the presence of ∆7 sterols, unlike other vegetable oils. Walnut oil is dominated by polyunsaturated fatty acids, with a significant amount of C18:3, which makes it sensitive to oxidation. The oxidative stability of walnut oil is correlated with a decrease in the content of C18:3 fatty acids. The chemical composition of the oil varies significantly depending on the variety and growing conditions in both pumpkin and walnuts. then there is a potential in the determination of suitable genotypes with oil of greater oxidative stability.
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González Sánchez, Belén, Antonia Navarro, Judith Ramírez-Casas, and Joan Ramon Rosell. "Traditional Gypsum Pavements with Natural Aditives." In 4th International Conference on Bio-Based Building Materials. Switzerland: Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.575.
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In traditional architecture, the construction systems used have always been linked to the material resources of the environment. In the areas of extraction of gypsum in the Iberian Peninsula, the use of this material as a conglomerant was not limited to the interior lining of vertical and/or horizontal walls or to interior decorations, as is the case today, but proved to be a very versatile material, which could be used both in structural elements and in finishing elements and decorations. This study shows the preliminary results of an ongoing research on the recovery of traditional gypsum pavements, where three types of traditional gypsum plasters with natural products such as collagen, coconut soap, potassium soap, vegetable oil and marshmallow root were tested. The hygroscopic behaviour of the treated samples has been evaluated from the capillarity water absorption and the contact angle, due to their high hygroscopicity. On the other hand, the density and porosity, surface hardness and thermal conductivity of the samples have also been determined.