Synthesis of butyl butyrate by microbial lipase immobilized onto styrene-divinylbenzene copolymer.

被引：5
|
作者：
de Oliveira, PC
Alves, GM
de Castro, HF
Mei, LHI
机构：
[1] Fac Engn Quim Lorena, Dept Engn Quim, Lorena, SP, Brazil
[2] Univ Estadual Campinas, Fac Engn Quim, Dept Ciencia & Tecnol Mat, Campinas, SP, Brazil
来源：
QUIMICA NOVA | 2000年 / 23卷 / 05期
关键词：
lipase; organic solvent; immobilization; styrene-divinylbenzene copolymer; butyl butyrate;
D O I：
10.1590/S0100-40422000000500012
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This work investigates the reaction parameters of an immobilized lipase in the esterification reaction of n-butanol and butyric acid. Microbial lipase from Candida rugosa was immobilized onto styrene-divinylbenzene copolymer (STY-DVB) and subsequently introduced in an organic medium containing substrates in appropriate concentrations. Heptane was selected as solvent on the basis of its compatibility with the resin and the enzyme. The influence of molar ratio of acid to alcohol, amount of immobilized lipase and temperature on the butyl butyrate formation was determined. The results were compared with those achieved with free lipase and Lipozyme (commercially immobilized lipase) under the same operational conditions.
引用
收藏
页码：632 / 636
页数：5
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