Extraction and analysis of Jatropha curcas L. seed oil

Patel, S. M.

doi:10.5897/ajb11.776

Cited by 28 publications

(23 citation statements)

References 7 publications

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“…Although AEOE is eco‐friendly, its major drawback is the long time required for the enzymes to release the oil bodies from the oilseeds (Shivani et al . ). The dearth of some of these enzymes is another factor that prevents its regular use (Sharma et al .…”

Section: Introductionmentioning

confidence: 97%

Yellow Oleander Seed Oil Extraction Modeling and Process Parameters Optimization: Performance Evaluation of Artificial Neural Network and Response Surface Methodology

Ajala

Betiku

2014

Journal of Food Processing and Preservation

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The effects of sample weight, time and solvent type on YOSO yield were evaluated using ANN and RSM. The predicted optimal condition for the extraction process was found to be the same for the ANN and RSM models developed: sample weight of 20 g, time of 3 h and petroleum ether. The models predictions of YOSO yield (ANN [77.42%] and RSM [78.64%]) at optimum levels were verified experimentally (ANN [77.63%] and RSM [76.64%]). Evaluation of the models by R 2 and AAD showed that the ANN model was better (R 2 = 1.00, AAD = 0.61%) than the RSM model (R 2 = 0.98, AAD = 3.19%) in predicting YOSO yield. Physicochemical properties of the YOSO indicated that it was nonedible and the fatty acids profile showed that the oil was highly unsaturated (76.13%). PRACTICAL APPLICATIONSThis study demonstrated modeling of YOSO extraction and optimization of process parameters that are involved. The performance evaluation results showed that both the ANN and RSM could be used for modeling and optimization of YOSO extraction process. Also, the characterization of the oil showed that it could serve as raw material for many chemical industries such as biodiesel production, soap, cosmetic and pharmaceutical industrials. The results from this study can be successfully scaled up to pilot scale. Also, the results could be extended to the extraction of other oilseeds.

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Section: Introductionmentioning

confidence: 97%

Yellow Oleander Seed Oil Extraction Modeling and Process Parameters Optimization: Performance Evaluation of Artificial Neural Network and Response Surface Methodology

Ajala

Betiku

2014

Journal of Food Processing and Preservation

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“…curcas oil is regarded as a potential alternative to diesel fuel, and vegetable oils have numerous advantages in this respect http://dx.doi.org/10.1016/j.fuel.2013.01.021 because they are safe to store and handle because of their high flash points. The fact that jatropha oil cannot be used for nutritional purposes without detoxification makes its use as an energy source for fuel production, very attractive [6,7].…”

Section: Introductionmentioning

confidence: 99%

Biodiesel production from jatropha seeds: Solvent extraction and in situ transesterification in a single step

Kartika¹,

Yani²,

Ariono

et al. 2013

Fuel

100

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production from jatropha seeds: Solvent extraction and in situ transesterification in a single step. Fuel, Elsevier, 2013, vol. 106, pp. 111-117. <10.1016/j.fuel.2013 This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 8587 " We investigate the biodiesel production directly from jatropha seeds. " We examine influences of reaction conditions on biodiesel yield and its quality. " Increasing methanol to seed ratio and alkali concentration will increase yield and quality. " Increasing reaction temperature will increase yield. " Temperature, time and stirring speed effects on biodiesel quality were less important. a r t i c l e i n f o b s t r a c tThe objective of this study was to investigate solvent extraction and in situ transesterification in a single step to allow direct production of biodiesel from jatropha seeds. Experiments were conducted using milled jatropha seeds, and n-hexane as extracting solvent. The influence of methanol to seed ratio (2:1-6:1), amount of alkali (KOH) catalyst (0.05-0.1 mol/L in methanol), stirring speed (700-900 rpm), temperature (40-60°C) and reaction time (3-5 h) was examined to define optimum biodiesel yield and biodiesel quality after water washing and drying. When stirring speed, temperature and reaction time were fixed at 700 rpm, 60°C and 4 h respectively, highest biodiesel yield (80% with a fatty acid methyl ester purity of 99.9%) and optimum biodiesel quality were obtained with a methanol to seed ratio of 6:1 and 0.075 mol/L KOH in methanol. Subsequently, the influence of stirring speed, temperature and reaction time on biodiesel yield and biodiesel quality was studied, by applying the randomized factorial experimental design with ANOVA (F-test at p = 0.05), and using the optimum values previously found for methanol to seed ratio and KOH catalyst level. Most experimental runs conducted at 50°C resulted to high biodiesel yields, while stirring speed and reaction time did not give significantly effect. The highest biodiesel yield (87% with a fatty acid methyl ester purity of 99.7%) was obtained with a methanol to seed ratio of 6:1, KOH catalyst of 0.075 mol/L in methanol, a stirring speed of 800 rpm, a temperature of 50°C, and a reaction time of 5 h. The effects of stirring speed, temperature and reaction time on biodiesel quality were not significant. Most of the biodiesel quality obtained in this study conformed to the Indonesian Biodiesel Standard.

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“…After the extraction, the bagged sample was dried in a preweighed round-bottomed flask (M3) at 80°C to evaporate the remaining petroleum ether, cooled, and weighed (M4). The oil content was calculated using the following formula:

100

( Shivani et al, 2011 ). For each transgenic and control plant, the mean values of triplicate samples were calculated.…”

Section: Methodsmentioning

confidence: 99%

Seed-Specific Expression of AtLEC1 Increased Oil Content and Altered Fatty Acid Composition in Seeds of Peanut (Arachis hypogaea L.)

Tang

et al. 2018

Front. Plant Sci.

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Peanut (Arachis hypogaea L.) is one of the major oil crops and is the fifth largest source of plant oils in the world. Numerous genes participate in regulating the biosynthesis and accumulation of the storage lipids in seeds or other reservoir organs, among which several transcription factors, such as LEAFY COTYLEDON1 (AtLEC1), LEC2, and WRINKLED1 (WRI1), involved in embryo development also control the lipid reservoir in seeds. In this study, the AtLEC1 gene was transferred into the peanut genome and expressed in a seed-specific manner driven by the NapinA full-length promoter or its truncated 230-bp promoter. Four homozygous transgenic lines, two lines with the longer promoter and the other two with the truncated one, were selected for further analysis. The AtLEC1 mRNA level and the corresponding protein accumulation in different transgenic overexpression lines were altered, and the transgenic plants grew and developed normally without any detrimental effects on major agronomic traits. In the developing seeds of transgenic peanuts, the mRNA levels of a series of genes were upregulated. These genes are associated with fatty acid (FA) biosynthesis and lipid accumulation. The former set of genes included the homomeric ACCase A (AhACC II), the BC subunit of heteromeric ACCase (AhBC4), ketoacyl-ACP synthetase (AhKAS II), and stearoyl-ACP desaturase (AhSAD), while the latter ones were the diacylglycerol acyltransferases and oleosins (AhDGAT1, AhDGAT2, AhOle1, AhOle2, and AhOle3). The oil content and seed weight increased by 4.42–15.89% and 11.1–22.2%, respectively, and the levels of major FA components including stearic acid, oleic acid, and linoleic acid changed significantly in all different lines.

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Extraction and analysis of Jatropha curcas L. seed oil

Cited by 28 publications

References 7 publications

Yellow Oleander Seed Oil Extraction Modeling and Process Parameters Optimization: Performance Evaluation of Artificial Neural Network and Response Surface Methodology

Yellow Oleander Seed Oil Extraction Modeling and Process Parameters Optimization: Performance Evaluation of Artificial Neural Network and Response Surface Methodology

Biodiesel production from jatropha seeds: Solvent extraction and in situ transesterification in a single step

Seed-Specific Expression of AtLEC1 Increased Oil Content and Altered Fatty Acid Composition in Seeds of Peanut (Arachis hypogaea L.)

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