温度对泥鳅消化酶活性影响的研究  

Impact of Temperature on Digestive Enzyme Activities in Oriental Weatherfish Misgurnus anguillicaudatus

作　　者：陈苏维[1] 吉红[2] 朱文东[1] 熊传喜[3] 

机构地区：[1]陕西安康学院农学与生命科学院,陕西安康725000 [2]西北农林科技大学动物科学学院,陕西杨陵712100 [3]华中农业大学水产学院,湖北武汉430070

出　　处：《水产科学》2009年第9期528-530,共3页Fisheries Science

基　　金：安康学院专项经费项目(007AKXY031);西北农林科技大学安康水产试验示范站建设项目(202422)

摘　　要：在5～75℃以10℃为梯度差。pH7．5时研究了温度对泥鳅肝胰脏及肠道不同部位消化酶活性的影响。试验结果表明，泥鳅肝胰脏淀粉酶活性最适温度为45℃，肠道各部位淀粉酶活性最适温度为35℃；蛋白酶活性最适温度肝胰脏及前肠为55℃，中肠及后肠为45℃；肝胰脏及中肠脂肪酶活性最适温度为55℃，前肠及后肠脂肪酶活性在45℃时最高。The impact of temperature on digestive enzyme activities of intestine and hepatopancreas in oriental weatherfish （Misgurnus anguillicaudatus） was studied under the condition of pH 7.5, and 8 different temperature ranging from 5 to 75 ℃. It was found that the optimum temperature of amylase activity was 45 ℃ in the hepatopancreas, and 35 ℃ in the intestine. The maximal protease activity was observed at 55 ℃ in hepatopancreas and foregut and at 45 ℃ in the midgut and hindgut. The maximal lipase activity was found at 55 C in the hepatopancreas and midgut. However the maximal lipase activity was observed at 45 ℃ in the foregut and hindgut.

关 键 词：泥鳅 淀粉酶 蛋白酶 脂肪酶 最适温度 

分 类 号：S912[农业科学—水产科学]