温度和pH值对泥鳅肠道消化酶活性的影响  

Effects of temperature and pH on digestive enzyme activities in intestine of Misgurnus anguillicaudatus

作　　者：丁茜[1] 田宝军[1] 耿丽娜[2] 李英文[1] 

机构地区：[1]重庆市高校动物生物学重点实验室,重庆市高校生物活性物质工程研究中心,重庆师范大学生命科学学院,重庆400047 [2]西南大学农业部蚕桑学重点实验室,重庆400716

出　　处：《重庆水产》2009年第1期38-42,共5页CHONGQING FISHERIES

摘　　要：测定了不同温度及不同pH条件下泥鳅（Misgurnus anguillicaudatus）肠道中蛋白酶、淀粉酶和脂肪酶的活性。结果表明，随温度、pH的升高，三种酶活性的变化均表现为先增高后降低。蛋白酶、淀粉酶、脂肪酶的最适温度分别为50℃、50℃、40℃，最适pH分别为7．0、7．0、7．5。The protease, amylase and lipase activities in intestine of Misgurnus anguillicaudatus under the condition of different temperature and different pH were studied. The results showed that： with the increasing of temperature （20℃-65℃） and pH （6.0-9.5）, the digestive enzymes＇ activities increased at first, then decreased. The optimum temperatures of the protease and amylase were 50℃, the lipase were 40℃. The optimum pH value ofprotease, amylase and lipase were 7.0, 7.0 and 7.5.

关 键 词：泥鳅 消化酶活性 温度 PH 

分 类 号：S965.215[农业科学—水产养殖] S965.199[农业科学—水产科学]