Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/41508
標題: Supercritical carbon dioxide extraction of triglycerides from Jatropha curcas L. seeds
作者: Chen, W.H.
張傑明
Chen, C.H.
Chang, C.M.J.
Chiu, Y.H.
Hsiang, D.
關鍵字: Supercritical carbon dioxide extraction
Jatropha curcas L.
Triglycerides
Extraction efficiency
Solvent to solid ratio
rice bran oil
fluid extraction
fatty-acids
biodiesel
plant
india
fuel
germ
期刊/報告no:: Journal of Supercritical Fluids, Volume 51, Issue 2, Page(s) 174-180.
摘要: This study examines the effects of pressure, temperature and solvent to solid ratio (SSR) on extraction efficiency of triglycerides from powdered Jatropha seeds by using supercritical carbon dioxide extraction. Supercritical extractions were designed for pressures ranging from 250 to 350 bar, temperatures ranging from 313 to 333 K and SSR values ranging from 65:1 to 125: 1. All values were selected using response surface methodology in order to determine their effects on the concentration of triglycerides from the extracted oil. Using 3750 g of carbon dioxide over 5 h, a supercritical carbon dioxide extraction (at 350 bar, 333 K and an SSR value of 125:1) yielded 43.51% oil. The concentration and extraction efficiency (i.e. recovery) of triglycerides in the extract reached 657.1 mg/g and 97.62%, respectively. Changes in pressure presented more effective in increasing the recovery of triglycerides, but both temperature and the SSR value are important in obtaining high concentration of triglycerides from the Jatropha seeds that are useful for biodiesel materials. (C) 2009 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/41508
ISSN: 0896-8446
文章連結: http://dx.doi.org/10.1016/j.supflu.2009.08.010
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