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標題: Green production of energetic Jatropha oil from de-shelled Jatropha curcas L. seeds using supercritical carbon dioxide extraction
作者: Chen, Chao-Rui
Cheng, Yang-Jung
Ching, Yern-Chee
Hsiang, Daina
Chieh-Ming, J.Chang
關鍵字: De-shelled Jatropha curcas L. seeds;Supercritical carbon dioxide;Extraction;Triglycerides;Response surface methodology
Project: The Journal of Supercritical Fluids, volume 66, Page(s) 137-143.
This study examined the use of supercritical carbon dioxide (SC-CO2) in the extraction of triglycerides
from de-shelled Jatropha curcas L. seeds. A central composite response surface methodology (RSM) was
employed to evaluate the effects of pressure, temperature and solvent-to-solid ratio (SSR) on total yield
(TY), concentration of triglycerides (CTG) and recovery of triglycerides (RTG). In the experiment, SC-CO2
extraction of 15 g ground, de-shelled Jatropha seeds at a CO2 flow rate of 25 mL/min was investigated
under various pressure (250–350 bar), temperature (313–333 K) and SSR (60–100) conditions. The proposed
quadratic model well fitted the RSM-designed data, and the statistical analyses showed that both
pressure and SSR are important parameters that will significant affect the quality of extracted oil. Under
a pressure of 350 bar, a temperature of 325 K and a SSR of 82, the values of TY, CTG and RTG were 43.0%,
936.2 mg/g, and 98.1%, respectively.
ISSN: 0896-8446
DOI: 10.1016/j.supflu.2012.01.010
Appears in Collections:化學工程學系所

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