温度、pH对缢蛏(Sinonovacula constricta)消化酶活力的影响  

EFFECTS OF TEMPERATURE AND pH ON THE DIGESTIVE ENZYME ACTIVITIES OF SINONOVACULA CONSTRICTA

作　　者：范德朋[1] 潘鲁青[1] 肖国强[1] 马甡[1] 董双林[1] 

机构地区：[1]中国海洋大学海水养殖教育部重点实验室,青岛266003

出　　处：《海洋湖沼通报》2003年第4期69-73,共5页Transactions of Oceanology and Limnology

基　　金：国家重点基础研究规划项目 (G1 9990 1 2 0 1 1 )资助

摘　　要：本文研究了温度、pH对缢蛏 (Sinonovaculaconstricta (Lamarck) )三种主要消化酶 (蛋白酶、淀粉酶和纤维素酶 )活力的影响。结果表明 :当温度在 5～ 75℃之间时 ,蛋白酶、纤维素酶和淀粉酶的最适温度分别为为 55℃、4 5℃和 6 5℃ ;在不同的pH范围内 ,蛋白酶的最适pH值为 9.2 ,淀粉酶的最适pH值为 6 .3和 7.7,纤维素酶的最适pH值为 5.2。缢蛏的淀粉酶和蛋白酶活力较大 ,纤维素酶活力极微。In this paper, the activities of protease,amylase and cellulase of the constricted tagelus (Sinonovacula constricta) are studied. The results indicate that the optimum temperatures of protease, amylase and cellulose are 55℃,65℃and 45℃ for the range from 5℃ to 75℃ respectively. The optimum pH value for protease is 9.2, and that for cellulase is 5.2, and there are two optimum pH values for amylase, which are 6.3 and 7.7. The activities of the protease and amylase are high but for the cellulose it is fairly low.

关 键 词：缢蛏 消化酶活力 最适温度 淀粉酶 Lamarck) 纤维素酶 最适PH值 蛋白酶 

分 类 号：S968[农业科学—水产养殖] S966[农业科学—水产科学]