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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 754-755Extraction of Oil from Jatropha curcas L. Seed and...

Extraction of Oil from Jatropha curcas L. Seed and Kernel at Supercritical Hexane via High-Temperature High-Pressure Batch Wise Reactor System

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Abstract:

Extraction of oil from Jatropha curcas L. seed and kernel using hexane as solvent was performed at supercritical state of hexane; temperature from 200-280 °C, pressure from 4-12 MPa, with fixed 30 min extraction time, sample ratio to solvent 1:40 (w/v), and 300 rpm in a 1-liter high-temperature high-pressure batch wise reactor system. The percentages of oil yield from seed and kernel obtained via supercritical hexane were 67.2 and 81.2 %, respectively. The percentages of oil yield increase with increasing in pressure and temperature. The percentages of oil yield via supercritical hexane extraction were much better compared to soxhlet extraction (i.e. seed, 37 % and kernel, 48 %) and mechanical pressing techniques (i.e. seed, 30 % and kernel, 25 %). Oils extracted were derivatized into FAMEs before quantified using GC-MS. The results showed that maximum oil yield was obtained at temperature 280 °C, pressure 12 MPa, whereby oleic acid is the most abundance (43.4 %) followed by linoleic acid (29 %), palmitic acid (20.1 %) and stearic acid (7.5 %). Comparison extraction with soxhlet and mechanical pressing showed that the percentages of FAMEs distributions are similar in all extracts and they agree with the previous data obtained by other researchers.

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Advanced Materials Engineering and Technology III

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Periodical:

Applied Mechanics and Materials (Volumes 754-755)

Pages:

1102-1106

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.754-755.1102

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Online since:

April 2015

Authors:

Mohd Azlan Mohd Ishak*, H.H. Hussain, K. Ismail, Wan Izhan Nawawi, Ghani Zaidi Ab, A.Y. Ani

Keywords:

Fames, Fatty Acids, Jatropha curcas L., Supercritical Hexane

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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