论文部分内容阅读
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%。
Tyrosinase (tyr) was extracted from potatoes and the enzyme was used to catalyze the oxidation of p-hydroxybenzoic acid (BA) to o-quinone. Successfully grafted chitosan (Cs) was obtained. The structure and properties of the reaction products were characterized by UV-Vis, FTIR and TG-SDTA. The grafting ratio was 47% -58% by linear potentiometric titration.