| pH值对黄鳍鲷主要消化酶活性的影响 |
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| 引用本文： | LI Xi-guo,李希国,李加儿,区又君.pH值对黄鳍鲷主要消化酶活性的影响[J].南方水产,2005,1(6):18-22. |
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| 作者姓名： | LI Xi-guo 李希国 李加儿 区又君 |
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| 作者单位： | 1. 中国水产科学研究院南海水产研究所,广东,广州,510300;上海水产大学,上海,200090
2. 中国水产科学研究院南海水产研究所,广东,广州,510300 |
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| 基金项目： | 广东省重大科技兴海项目(A200051A03) |
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| 摘 要： | 研究了pH值对黄鳍鲷肝、胃、肠3个部分主要消化酶(蛋白酶、脂肪酶和淀粉酶)比活的影响。结果显示,黄鳍鲷肝脏、胃和肠道蛋白酶最适pH值分别为:7.0、2.8和7.4,脂肪酶最适pH值分别为:7.2、7.6和7.6,淀粉酶最适pH值分别为4.8、5.2和6.8。胃蛋白酶的最适pH在酸性范围,肝和肠的最适pH值都在中性偏碱性范围。淀粉酶的最适pH值都在酸性范围,脂肪酶的最适pH都在碱性范围。
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| 关 键 词： | pH 黄鳍鲷 消化酶 活性 |
| 文章编号： | 1673-2227-(2005)06-0018-05 |
| 修稿时间： | 2005年6月27日 |
Effect of pH on the activity of major digestive enzymes in yellowfin black porgy Sparus latus |
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| LI Xi-guo ,LI Jia-er,OU You-jun.Effect of pH on the activity of major digestive enzymes in yellowfin black porgy Sparus latus[J].South China Fisheries Science,2005,1(6):18-22. |
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| Authors: | LI Xi-guo LI Jia-er OU You-jun |
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| Institution: | LI Xi-guo 1,2,LI Jia-er1,OU You-jun1 |
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| Abstract: | The effect of pH on digestive enzyme activity (protease, amylase, lipase) of alimentary organs (hepatopancreas,stomach,gut ) in yellowfin black porgy (Sparus latus) was studied in this paper. The specific activity of protease at different pH shows that the optimum pH for protease in yellowfin black porgy were 2.8,7.0 and 7.4 in stomach, hepatopancreas and intestinal canal, respectively. The optimum pH for lipase in yellowfin black porgy were 7.6,7.2 and 7.6 in stomach, hepatopancreas and intestinal canal, respectively. The optimum pH for amylase in yellowfin black porgy were were 5.2,4.8 and 6.8 in stomach, hepatopancreas and intestinal canal, respectively. |
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| Keywords: | pH yellowfin black porgy Sparus latus digestive enzyme activity |
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