| 壳聚糖-对羟基苯甲酸酶法接枝及表征 |
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| 引用本文： | 薛丽群,马秀玲,罗志敏,陈盛. 壳聚糖-对羟基苯甲酸酶法接枝及表征[J]. 化学通报, 2007, 70(9): 703-706 |
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| 作者姓名： | 薛丽群 马秀玲 罗志敏 陈盛 |
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| 作者单位： | 福建师范大学福清分校 福清350300(薛丽群，罗志敏，陈盛)，福建师范大学化学与材料学院 福州350007(马秀玲) |
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| 摘 要： | 从土豆中提取酪氨酸酶(tyr),以该酶催化氧化对羟基苯甲酸(BA)成活性邻醌,成功地实现了壳聚糖(Cs)上的接枝。通过UV-Vis、FTIR、TG-SDTA对其反应产物进行结构和性能的初步表征,由线性电位滴定法测得其接枝率为47%~58%。
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| 关 键 词： | 壳聚糖 酶法接枝 酪氨酸酶 对羟基苯甲酸 |
| 修稿时间： | 2006-08-26 |
Enzymatic Grafting and Characterization of Chitosan-(p-Hydroxybenzoic Acid) |
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| Xue Liqun,Ma Xiuling,Luo Zhimin,Chen Sheng. Enzymatic Grafting and Characterization of Chitosan-(p-Hydroxybenzoic Acid)[J]. Chemistry, 2007, 70(9): 703-706 |
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| Authors: | Xue Liqun Ma Xiuling Luo Zhimin Chen Sheng |
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| Affiliation: | FuQing Branch of Fujian Normal University, FuQing Fujian 350300; College of Chemistry and Materials Science, Fujian Normal University, Fuzhou Fujian 350007 |
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| Abstract: | Tyrosinase was extracted from potatoes .The 4-hydroxybenzoic acid was catalyzed and oxidized by tyrosinase to reactive o-quinones, which were grafted onto chitosan. The structure and property of the grafted product were characterized by UV-Vis ,FTIR and TG-SDTA. The results indicated that the 4-hydroxybenzoic acid had been grafted onto chitosan film by tyrosinase.The graft rate was determined to be 47% - 58% with linear titrimetric method. |
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| Keywords: | Chitosan Enzymatic grafting Tyrosinase p-Hydroxybenzoic acid |
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