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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
陈 刚1, 汤保贵1, 张健东1, 叶富良1, 吴灶和1
湛江海洋大学 水产学院
摘要:
测定了军曹鱼(Rachycentron canadum)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。
关键词:  军曹鱼(Rachycentron canadum)  pH  底物体积分数  盐度  淀粉酶  活力
DOI：
分类号:
基金项目: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)
The effects of pH, amylum concentration and salinity on the activity of amylases from Rachycentron canadum
Abstract:
The activity of amylases taken from the stomach, pancreas and intestine of Rachycentron canadum was determined. The results showed 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 smylum concentrations were 0.056%,0.056%,0.048% and 0.064% repectively; and the most optimum salinity was 28.
Key words:  pH  amyium concentration  salinity  amylase  Rachycentron canadum
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