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	Improvement in lipase-catalyzed methanolysis of triacylglycerols for biodiesel production using a solvent engineering method
	Su, Erzheng1; Wei, Dongzhi1,2
	2008-11-01
发表期刊	JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC
卷号	55期号:3-4页码:118-125
摘要	A solvent engineering strategy was applied to the lipase-catalyzed methanolysis of triacyl glycerols for biodiesel production. The effect of different pure organic solvents and co-solvent mixtures on the methanolysis was compared. The substrate conversions in the co-solvent mixtures were all higher than those of the corresponding pure Organic solvents. Further study showed that addition of co-solvent decreased the values of vertical bar log P-interface - log P-substrate vertical bar and thus led to a faster reaction. The more the values of vertical bar log(interface) - logP(substrate)vertical bar decreased, the faster the reaction proceeded and the higher the conversion attained. Different co-solvent ratio was further investigated. The co-solvent mixture of 25% t-pentanol:75% isooctane (v/v) was optimal. with which both the negative effects caused by excessive methanol and by-product glycerol could be eliminated. There was no obvious loss in lipase activity even after being repeatedly used for 60 cycles (720 h) with this co-solvent mixture as reaction medium. Other lipases and lipase combinations can also catalyze methanolysis in this co-solvent mixture. Furthermore, other vegetable oils were also explored for biodiesel production in this co-solvent Mixture and it had been found that this co-solvent mixture media has extensive applicability.; A solvent engineering strategy was applied to the lipase-catalyzed methanolysis of triacyl glycerols for biodiesel production. The effect of different pure organic solvents and co-solvent mixtures on the methanolysis was compared. The substrate conversions in the co-solvent mixtures were all higher than those of the corresponding pure Organic solvents. Further study showed that addition of co-solvent decreased the values of vertical bar log P-interface - log P-substrate vertical bar and thus led to a faster reaction. The more the values of vertical bar log(interface) - logP(substrate)vertical bar decreased, the faster the reaction proceeded and the higher the conversion attained. Different co-solvent ratio was further investigated. The co-solvent mixture of 25% t-pentanol:75% isooctane (v/v) was optimal. with which both the negative effects caused by excessive methanol and by-product glycerol could be eliminated. There was no obvious loss in lipase activity even after being repeatedly used for 60 cycles (720 h) with this co-solvent mixture as reaction medium. Other lipases and lipase combinations can also catalyze methanolysis in this co-solvent mixture. Furthermore, other vegetable oils were also explored for biodiesel production in this co-solvent Mixture and it had been found that this co-solvent mixture media has extensive applicability. (c) 2008 Published by Elsevier B.V.
文章类型	Article
关键词	Solvent Engineering Co-solvent Mixture Biodiesel Novozym435 Jatropha Curcas L. Seed Oil
学科领域	生物反应工程
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI	10.1016/j.molcatb.2008.03.001
关键词[WOS]	CANDIDA-ANTARCTICA LIPASE ; COTTON SEED OIL ; SOYBEAN OIL ; FUEL PRODUCTION ; ORGANIC-SOLVENTS ; SUNFLOWER OIL ; IMMOBILIZED LIPASE ; NONAQUEOUS MEDIA ; WATER ACTIVITY ; FREE SYSTEM
收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Physical
WOS记录号	WOS:000260318500004
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/418
专题	生物反应工程团队（过去）
作者单位	1.E China Univ Sci & Technol, New World Inst Biotechnol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China 2.Chinese Acad Sci, Qingdao Inst BioEnergy & Bioproc Technol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Su, Erzheng,Wei, Dongzhi. Improvement in lipase-catalyzed methanolysis of triacylglycerols for biodiesel production using a solvent engineering method[J]. JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC,2008,55(3-4):118-125.
APA	Su, Erzheng,&Wei, Dongzhi.(2008).Improvement in lipase-catalyzed methanolysis of triacylglycerols for biodiesel production using a solvent engineering method.JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC,55(3-4),118-125.
MLA	Su, Erzheng,et al."Improvement in lipase-catalyzed methanolysis of triacylglycerols for biodiesel production using a solvent engineering method".JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC 55.3-4(2008):118-125.

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