| 表面活性剂包衣Candida rugosa脂肪酶在异辛烷中的稳定性 |
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| 引用本文： | 宋宝东,邢爱华,吴金川,王世昌. 表面活性剂包衣Candida rugosa脂肪酶在异辛烷中的稳定性[J]. 中国化学工程学报, 2003, 11(2): 217-219 |
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| 作者姓名： | 宋宝东 邢爱华 吴金川 王世昌 |
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| 作者单位： | ChemicalEngineeringResearchCenter,SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjina300072,China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(No.29876031) |
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| 摘 要： | The stability of Candida rugosa lipase coated with glutamic acid didodecyl ester ribitol amide was investigated taking esterification of lauryl alcohol and lauric acid in isooctane as a model reaction.At 30℃,the half-life of the activity of the coated lipase was ca 10h,the enzyme activity became less changed after 12h and the residual activity was 39% of the initial value ,The coated lipase obeyed a first-order deactivation model with a deactivation energy of 29.9 J.mol^-1.
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| 关 键 词： | 表面活性剂包衣 假丝酵母 脂肪酶 异辛烷 稳定性 Candida Rugosa |
| 修稿时间： | |
Stability of Surfactant-coated Candida Rugosa Lipase in Isooctane |
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| SONG Baodong,XING Aihua,WU Jinchuan,WANG Shichang. Stability of Surfactant-coated Candida Rugosa Lipase in Isooctane[J]. Chinese Journal of Chemical Engineering, 2003, 11(2): 217-219 |
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| Authors: | SONG Baodong XING Aihua WU Jinchuan WANG Shichang |
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| Affiliation: | Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | The stability of Candida rugosa lipase coated with glutamic acid didodecyl ester ribitol amide was investigated taking esterification of lauryl alcohol and lauric acid in isooctane as a model reaction. At 30C, the half-life of the activity of the coated lipase was ca 10 h, the enzyme activity became less changed after 12 h and the residual activity was 39% of the initial value. The coated lipase obeyed a first-order deactivation model with a deactivation energy of 29.9J.mol-1. |
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| Keywords: | activity Candida rugosa lipase organic solvent stability surfactant |
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