摘要
Lipase from Pseudomonas fluorescens efficiently catalyzed the alcoholysis of various TG in dry alcohols. For TG with short-chain FA, more MG were accumulated. The yields of MG were affected by the alcohols used. The maximum yields of MG were as follows: 85% for monoacetin in n-butanol, 96% for monobutyrin in ethanol or n-butanol, 50% for monocaprylin in n-butanol, 48% for monolaurin in isopropanol, and 45% for monopalmitin in isopropanol. The MG produced were judged to be 2-MG by TLC analysis. The presence of organic cosolvent affected the reaction rate of the lipase-catalyzed alcoholysis of TG. For the alcoholysis of various TG in ethanol and cosolvent (1:1, vol/vol), the rates had the following orders: (i) for tributyrin, hexane > toluene > acetone > ethyl acetate > chloroform > acetonitrile > pyridine; (ii) for tricaprylin, hexane > acetone > toluene > acetonitrile > ethyl acetate > pyridine > chloroform; and (iii) for trilaurin, hexane > acetonitrile = acetone > ethyl acetate > pyridine = chloroform > toluene.
原文 | 英語 |
---|---|
頁(從 - 到) | 533-536 |
頁數 | 4 |
期刊 | JAOCS, Journal of the American Oil Chemists' Society |
卷 | 81 |
發行號 | 6 |
DOIs | |
出版狀態 | 已發佈 - 2004 6月 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 化學工程 (全部)
- 有機化學