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

Lee, Sang Hyun; Ha, Sung Ho; Lee, Sun Bok; Koo, Yoon-Mo

Lee, Sang Hyun; Ha, Sung Ho; Lee, Sun Bok; Koo, Yoon-Mo.

Afiliación

Lee SH; Department of Biological Engineering, ERC for Advanced Bioseparation Technology, Inha University, Incheon 402-751, Korea.

Biotechnol Lett ; 28(17): 1335-9, 2006 Sep.

Article en En | MEDLINE | ID: mdl-16820978

RESUMEN

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][Tf(2)N], and the activity of lipase in [Omim][Tf(2)N] mixture containing 2% [Omim] [Cl] was only about 2% of the activity in pure [Omim][Tf(2)N]. 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][Tf(2)N] containing about 20% [Omim][Cl].

Asunto(s)

Cloruros/farmacología; Imidazoles/química; Líquidos Iónicos/química; Lipasa/metabolismo; Rhizomucor/enzimología; Catálisis; Estabilidad de Enzimas; Esterificación; Lipasa/química

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cloruros / Rhizomucor / Líquidos Iónicos / Imidazoles / Lipasa Idioma: En Revista: Biotechnol Lett Año: 2006 Tipo del documento: Article Pais de publicación: Países Bajos

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