Reactions of olive oil and glycerol over immobilized lipases

被引：49
|
作者：
Coteron, A [1 ]
Martinez, M [1 ]
Aracil, J [1 ]
机构：
[1] Univ Complutense, Fac Chem, Dept Chem Engn, E-28040 Madrid, Spain
来源：
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1998年 / 75卷 / 05期
关键词：
free fatty acids; glycerol; glycerolysis; immobilized lipases; monoglycerides; olive oil;
D O I：
10.1007/s11746-998-0080-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The reaction of olive oil and glycerol over immobilized lipases was studied. For oil samples with free fatty acid (FFA) contents larger than 2%, FFA esterification and glycerolysis took place simultaneously, but the esterification reaction was faster than glycerolysis. Similar product distributions were obtained for glycerol/oil mole ratios of 3:1 and 6:1. Therefore, an excess of glycerol does not result in a significant increase in monoglyceride yield within the experimental range tested. The main reaction product at 80 degrees C was diglyceride. No increase in monoglyceride yield was observed by lowering the reaction temperature to 1 0 degrees C.
引用
收藏
页码：657 / 660
页数：4
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