摘要
以酪蛋白为底物,研究了中华绒螯蟹胃、肠及肝、胰脏蛋白酶的最适pH值和最适底物浓度。研究结果表明:河蟹消化道蛋白酶的最适pH值在5.4～5.8和7.2～7.6;蛋白酶的最适底物酪蛋白的浓度为:胃,0.8mg/ml;肠,1.6mg/ml;肝、胰脏,1.2mg/ml。
The optimal PH value and optimal substrate consistency of proteolytic enzyme of stomach, intestines, liver and pancreas of the mitten crab (Eriocheir sinensis) were determined by using casein as the substrate. Results showed that the optimal pH values of proteolytic enzyme of the crab were 5.4—5.8 and 7.2—7.6. The optimal substrate consistency of casein were: stomach, 0.8 mg/ml; intestines, 1.6 mg/ml; liver and pancreas, 1.2 mg/ml.
出处
《水产科技情报》
1993年第5期196-199,共4页
Fisheries Science & Technology Information
关键词
河蟹
蛋白酶
中华绒螯蟹
胃肠
肝
Mitten crab (Eriocheir sinensis) Proteolytic enzyme Optimal pH value Substrate consistency of casein
