Adverse effect of chloride impurities on lipase-catalyzed transesterifications in ionic liquids

被引：57

作者：

Lee, Sang Hyun

Ha, Sung Ho

Lee, Sun Bok

Koo, Yoon-Mo ^{[1
]}

机构：

[1] Inha Univ, ERC Adv Bioseparat Technol, Dept Biol Engn, Inchon 402751, South Korea

[2] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea

[3] Pohang Univ Sci & Technol, Div Mol & Life Sci, Pohang 790784, South Korea

来源：

BIOTECHNOLOGY LETTERS | 2006年 / 28卷 / 17期

关键词：

chloride; ionic liquid; lipase; transesterification;

D O I：

10.1007/s10529-006-9095-6

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：

The adverse influence of chloride impurities on the lipase-catalyzed transesterification in ionic liquid is described. The activity of lipase from Rhizomucor miehei exponentially decreased with increasing Cl- content in 1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amide, [Omim][Tf2N], and the activity of lipase in [Omim][Tf2N] mixture containing 2% [Omim][Cl] was only about 2% of the activity in pure [Omim][Tf2N]. The activity of lipase from Candidantarctica linearly decreased at about 5% with every 1% increase in [Omim][Cl] with there being no activity in [Omim][Tf2N] containing about 20% [Omim][Cl].

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收藏

页码：1335 / 1339

页数：5

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