Enzymatic synthesis of fatty acid ethyl esters by utilizing camellia oil soapstocks and diethyl carbonate

被引：31

作者：

Wang, Yingying ^{[1
]}

Cao, Xuejun ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Dept Bioengn, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 22期

关键词：

Fatty acid ethyl esters; Soapstocks; Diethyl carbonate; Enzymatic reaction; Immobilized lipases; BIODIESEL PRODUCTION; DIMETHYL CARBONATE; SOLVENT; TRANSESTERIFICATION;

D O I：

10.1016/j.biortech.2011.09.004

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study was reported on a novel process for fatty acid ethyl esters preparation by transesterification and esterification from renewable low-cost feedstock camellia oil soapstocks and friendly acyl acceptor diethyl carbonate. The main components of product were 83.9% ethyl oleate, 8.9% ethyl palmitate, 4.7% ethyl linoleate and 2.1% ethyl stearate, which could be used as eco-friendly renewable resources or additives of industrial solvent and fossil fuel. The effects of molar ratio of diethyl carbonate to soapstocks oil, lipases, organic solvent, reaction temperature and time were investigated, and process conditions were optimized. The yield was up to 98.4% in solvent-free system with molar ratio of diethyl carbonate to soapstocks oil 3:1 and 5% Novozym 435 (based on the weight of soapstocks oil) at 50 degrees C and 180 rpm for 24 h. Moreover, there was no obvious loss in the yield after lipases were reused for 10 batches without treatment under optimized conditions. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：10173 / 10179

页数：7

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