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双液相反应体系中脂肪酶催化拆分缩水甘油酯
引用本文:王智,权静,翁樑,苟小军,马吉胜,张桂荣,曹淑桂.双液相反应体系中脂肪酶催化拆分缩水甘油酯[J].吉林大学学报(理学版),2003,41(2):213-216.
作者姓名:王智  权静  翁樑  苟小军  马吉胜  张桂荣  曹淑桂
作者单位:1. 吉林大学分子酶学工程教育部重点实验室, 长春 130023; 2. 成都大学生物工程系分子进化工程实验室, 成都 610106; 3. 长春教育学院, 长春 1 30061
基金项目:国家自然科学基金(批准号:20272017).
摘    要:利用脂肪酶作为催化剂在双液相反应体系中对外消旋缩水甘油酯进行立体选择性的酯水解反应. 考察了影响该拆分反应的因素, 确定了最适酶源为猪胰脂肪酶; 最适底物为缩水甘油丁酯; 其它最适反应条件: pH为7.6; 温度为27 ℃; 反应时间为4 h. 在最适 条件下, 当酶促拆分反应的转化率为60.6%时, 缩水甘油丁酯的光学纯度可以达到93.3%以 上.

关 键 词:缩水甘油酯  拆分  脂肪酶  水解  
文章编号:1671-5489(2003)02-0213-04
收稿时间:2002-11-06
修稿时间:2002年11月6日

Kinetic Resolution of Glycidyl Esters Catalyzed by Lipase in a Biphasic Reaction System
WANG Zhi,QUAN Jing,WENG Liang,GOU Xiao -jun,MA Ji-sheng,ZHANG Gui-rong,CAO Shu-gui.Kinetic Resolution of Glycidyl Esters Catalyzed by Lipase in a Biphasic Reaction System[J].Journal of Jilin University: Sci Ed,2003,41(2):213-216.
Authors:WANG Zhi  QUAN Jing  WENG Liang  GOU Xiao -jun  MA Ji-sheng  ZHANG Gui-rong  CAO Shu-gui
Institution:1. Key Laboratory for Molecular Enzymology and Engineering of Educational Ministry, Jilin University, Changchun 130023, China; 2. Key Laboratory of Molecular Evolution and Engineering, Chengdu University, Chengdu 610106, China;3. Educational Institute of Changchun, Changchun 130061, China
Abstract:The stereoselective hydrolysis of racemic glycidyl esters catalyzed by lipase in a biphasic system was studied. The results show that porcine pancreatic lipase (PPL) shows a high enantioselectivity towards glycidyl butyrate. The results also show (1) the optimal pH value was 7.6, (2) the optimal reaction t emperature was 27 ℃ and (3) the optimal reaction time was 4 h. Under all above optimal conditions, R-glycidyl butyrate with more than 93.3% ee was pre pared and the hydrolysis degree of racemic glycidyl butyrate was 60.6%.
Keywords:glycidyl ester  resolution  lipase  hydrolysis
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