| C12G1.50/正丁醇/环己烷/H2O W/O体系中的酶催化酯合成反应研究 |
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| 引用本文： | 吴昌富,高延红.C12G1.50/正丁醇/环己烷/H2O W/O体系中的酶催化酯合成反应研究[J].山东化工,2005,34(2):11-13. |
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| 作者姓名： | 吴昌富 高延红 |
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| 作者单位： | 山东师范大学化学系,山东,济南,250014;山东师范大学化学系,山东,济南,250014 |
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| 基金项目： | 山东省自然科学基金资助项目(编号:Y2003B01). |
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| 摘 要： | 研究了在十二烷基聚葡糖苷C12G150/正丁醇/环己烷/H2O体系形成的油包水(W/O)微乳液中,脂肪酶Novozym100T催化正己酸和正丁醇的酯合成反应及其影响因素。结果表明,反应初始速率V0随正己酸的初始浓度CHA0增大而增大;随正丁醇的初始浓度CROH0的增大而减小,后V0进入一"坪区"。这可能是形成酶-正丁醇络合物所致。C12G1.50、正丁醇的浓度及两者的总浓度对初始浓度的影响也进行了讨论。
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| 关 键 词： | 十二烷基聚葡糖苷 微乳液 脂肪酶催化 |
| 文章编号： | 1008-021X(2005)02-0011-03 |
| 修稿时间： | 2005年1月25日 |
Studies on the Esterification Reaction Catalyzed by Lipase in C12G1.50/n- Butanol/Cyclohexane/Water W/O System |
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| WU Chang-fu,GAO Yan-hong.Studies on the Esterification Reaction Catalyzed by Lipase in C12G1.50/n- Butanol/Cyclohexane/Water W/O System[J].Shandong Chemical Industry,2005,34(2):11-13. |
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| Authors: | WU Chang-fu GAO Yan-hong |
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| Abstract: | The esterification reaction and its influencing factors of hexanoic acid with n - butanol, catalyzed by lipase Novozym100T, were studied in water - in - oil microemulsions formed by alkyl polyglucoside C12G1.50/n - butanol/cyclohexane/water system. The result shows that the initial rate V0 of the esterification reaction increases as hexanoic acid concentration increases; and the initial rate V0 decreases as n - butanol concentration increases and then reaches a plateau region. This may be explained by the formation of lipase - butanol complex. The effects of C12G1.50 concentration, n -butanol concentration and the total concentrations of both C12 G1.50 and n - butanol were also investigated. |
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| Keywords: | alkyl polyglucoside microemulsion lipase catalysis |
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