脂肪酶LipozymeTLIM催化合成MLM型结构脂及其1,3专一性的研究(英文)

The structured lipids are produced through sn-1,3-specific interesterification of soybean oil with medium-chain triacylglycerol(MCT) in continuous reactions catalyzed by Thermomyces lanuginose lipase(Lipozyme TL IM).Cheap Lipozyme TL IM presents similar interesterification degree(ID), sn-1,3-specifi...

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Published in:中国化学工程学报：英文版 2014 (9), p.1016-1020
Main Author: 杨宏黎 牟英 陈洪涛 苏春阳 杨天奎 修志龙
Format: Article
Language:English
Subjects:
3-specificity
Interesterification
lanuginose
lipase
lipids
Medium-chain
Sn-1
Structured
Thermomyces
triacylglycerol
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Summary:The structured lipids are produced through sn-1,3-specific interesterification of soybean oil with medium-chain triacylglycerol(MCT) in continuous reactions catalyzed by Thermomyces lanuginose lipase(Lipozyme TL IM).Cheap Lipozyme TL IM presents similar interesterification degree(ID), sn-1,3-specificity and residual activity as expensive Rhizomucor miehei in batch reactions. In packed-bed interesterification of soybean oil with MCT catalyzed by Lipozyme TL IM, the residence time has a significant effect on ID, while temperature has a small effect at45–70 °C. The sn-1,3-specificity of Lipozyme TL IM is not satisfactory when reaction temperature is higher than60 °C. The optimal residence time and temperature are 30–40 min and 55 °C, respectively. Among the solvents,including acetone, isopropanol, tert-butanol, and isobutanol, used to recover the activity of the used Lipozyme TL IM, acetone is the most suitable one than the other solvents.
ISSN:1004-9541
2210-321X