Enzymatic transesterification of Jatropha oil

被引:145
作者
Kumari, Annapurna [1 ]
Mahapatra, Paramita [1 ]
Garlapati, Vijay Kumar [1 ]
Banerjee, Rintu [1 ]
机构
[1] Indian Inst Technol, Agr & Food Engn Dept, Kharagpur 721302, W Bengal, India
关键词
BIODIESEL FUEL PRODUCTION; LIPASE-CATALYZED TRANSESTERIFICATION; CANDIDA-ANTARCTICA LIPASE; IMMOBILIZED-LIPASE; OLEATE SYNTHESIS; RHIZOPUS-ORYZAE; VEGETABLE-OIL; SOLVENT; WATER; TRIGLYCERIDES;
D O I
10.1186/1754-6834-2-1
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Background: Transesterification of Jatropha oil was carried out in t-butanol solvent using immobilized lipase from Enterobacter aerogenes. The presence of t-butanol significantly reduced the negative effects caused by both methanol and glycerol. The effects of various reaction parameters on transesterification of Jatropha oil were studied. Results: The maximum yield of biodiesel was 94% (of which 68% conversion was achieved with respect to methyl oleate) with an oil: methanol molar ratio of 1: 4, 50 U of immobilized lipase/g of oil, and a t-butanol: oil volume ratio of 0.8:1 at 55 degrees C after 48 h of reaction time. There was negligible loss in lipase activity even after repeated use for seven cycles. Conclusion: To the best of our knowledge this is the first report on biodiesel synthesis using immobilized E. aerogenes lipase.
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页数:7
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