pH、底物体积分数和盐度对军曹鱼消化组织淀粉酶活力的影响  

The effects of pH,amylum concentration and salinity on the activity of amylases from Rachycentron canadum

作　　者：陈刚[1] 汤保贵[1] 张健东[1] 叶富良[1] 吴灶和[1] 

机构地区：[1]湛江海洋大学水产学院,广东湛江524025

出　　处：《海洋科学》2005年第11期28-30,共3页Marine Sciences

基　　金：国家863计划"海水养殖种子工程"重大专项(2002AA603012);广东省海洋与渔业局重大科技兴海项目(A200099A01);广东省科技厅重大攻关项目(2003A2010502)

摘　　要：测定了军曹鱼(Rachycentroncanadum)的胃、幽门盲囊、肠等消化组织中淀粉酶在不同pH值下的活力及在最适pH值下底物体积分数、盐度对其活力的影响。结果表明,胃、幽门盲囊、前中肠、后肠的淀粉酶的最适pH值分别是6.0,7.0,5.8和7.0;其最适底物体积分数分别为0.056%,0.056%,0.048%和0.064%;其最适盐度为28。The activity of amylases taken from the stomach, pancreas and intestine of Rachycentron canadum was determined. The results stowed that the most optimum pHs for stomach, pancreas ,fore - intestine, mid - hind - intestine were 6.0, 7.0, 5.8 and 7.0 respectively; the most optimum amylum concentrations were 0. 056%, 0. 056%, 0. 048% and 0. 064% respectively;and the most optimum salinity was 28.

关 键 词：军曹鱼(Rachyceruton canadum) PH 底物体积分数 盐度 淀粉酶 活力 

分 类 号：Q959.4[生物学—动物学] S965.3[农业科学—水产养殖]