| pH对凡纳滨对虾蛋白酶和淀粉酶活性的影响 |
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| 引用本文： | 刘襄河,黄燕华,王国霞,周晔,周艳萍.pH对凡纳滨对虾蛋白酶和淀粉酶活性的影响[J].水产科学,2008,27(7). |
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| 作者姓名： | 刘襄河 黄燕华 王国霞 周晔 周艳萍 |
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| 作者单位： | 1. 珠海市农业科学研究中心,广东,珠海,519070
2. 武汉工业学院饲料科学系,湖北,武汉,430023 |
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| 基金项目： | 广东省科技攻关项目
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珠海市科技攻关项目 |
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| 摘 要： | 研究了不同pH对凡纳滨对虾胃、肠道及肝胰脏中蛋白酶和淀粉酶活力的影响及在最适pH条件下不同部位上述酶活性的差异。试验结果表明,凡纳滨对虾消化系统不同部位的蛋白酶活力大小依次为:肝胰脏>胃>肠,其最适pH分别为8.0、6.0和7.5;淀粉酶活力大小依次为:胃>肝胰脏>肠,其最适pH分别是7.0、7.0和6.5。
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| 关 键 词： | 凡纳滨对虾 蛋白酶 淀粉酶 pH |
Effects of pH on Protease and Amylase Activities in White Leg Shrimp Litopenaeus vannamei |
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| LIU Xiang-he,HUANG Yan-hua,WANG Guo-xia,ZHOU Ye,ZHOU Yan-ping.Effects of pH on Protease and Amylase Activities in White Leg Shrimp Litopenaeus vannamei[J].Fisheries Science,2008,27(7). |
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| Authors: | LIU Xiang-he HUANG Yan-hua WANG Guo-xia ZHOU Ye ZHOU Yan-ping |
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| Institution: | LIU Xiang-he1,HUANG Yan-hua1,WANG Guo-xia1,ZHOU Ye1,ZHOU Yan-ping2 |
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| Abstract: | Effects of pH on the main digestive enzyme activities in stomach,intestine and hepatopancreas white leg shrimp Litopenaeus vannamei were studied and compared with activities of different parts at optimal pH.The results showed that the trend of protease activities in different parts of the digestive system ranged as the order:hepatopancreas> stomach> intestine,and that the optimum pH for protease were 8.0,6.0 and 7.5,respectively,The trend of amylase activities were followed by the order:stomach> hepatopancreas> intestine,and the optimum pH for amylase were 7.0,7.0 and 6.5,respectively. |
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| Keywords: | Litopenaeus vannamei protease amylase pH |
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