2种水产饲用蛋白酶的主要酶学性质研究  

Study on the Zymological Properties of Protease in Aquatic Feedstuff

作　　者：齐莉莉[1] 王进波[1] 

机构地区：[1]浙江大学宁波理工学院生物与化学工程分院,浙江宁波315100

出　　处：《水生态学杂志》2009年第3期73-76,共4页Journal of Hydroecology

基　　金：宁波市农业攻关项目资助(2007C10063)

摘　　要：采用Folin法测定2种水产饲料用商品蛋白酶的活性,研究了pH、温度以及热处理对其活性的影响。结果表明:实验酸性蛋白酶和中性蛋白酶的最适反应pH分别为3.0和7.0,最适反应温度均为60℃,酸性蛋白酶的热稳定性优于中性蛋白酶。The research determined enzyme activities of two proteases by Folin method, and studied the effects of pH, temperature and heat treatment on the enzyme activities. The results showed that the optimal pH of acid protease and neutral protease were 3.0 and 7.0, respectively. And their optimal temperature was about 60℃. The acid protease had higher thermal stability than neutral protease.

关 键 词：酸性蛋白酶 中性蛋白酶 酶活性 温度 PH 

分 类 号：Q556.3[生物学—生物化学]