Kinetics of esterification of lauric acid with fatty alcohols by lipase: effect of fatty alcohol

被引：32
|
作者：
Shintre, MS [1 ]
Ghadge, RS [1 ]
Sawant, SB [1 ]
机构：
[1] Univ Bombay, Inst Chem Technol, Chem Engn Div, Bombay 400019, Maharashtra, India
来源：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2002年 / 77卷 / 10期
关键词：
Thermomyces lanuginosus; first order reaction; lauric acid esters; lipase; fatty alcohol selectivity; kinetic model;
D O I：
10.1002/jctb.684
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：
Lauric acid has been esterified with some C-1-C-18 aliphatic alcohols by a commercial lipase, Lipolase 100 L, using isooctane as a solvent. When lauric acid and fatty alcohols were taken in the mole ratio 1:1, first order kinetics were observed for all the alcohols studied. The highest reaction rate was observed for n-butyl alcohol. Lauric acid was esterified with stearyl alcohol, in varying acid to alcohol mole ratios to explain the first order kinetics of the reaction. A kinetic model for the lipase-catalysed esterification in a biphasic organic-aqueous system has been proposed. Based on the interfacial substrate concentration, an analytical rate equation for initial rate of the reaction was derived and confirmed with the experimental data. (C) 2002 Society of Chemical Industry.
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收藏
页码：1114 / 1121
页数：8
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