| pH值对星突江鲽消化酶活性的影响 |
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| 引用本文： | 李文雯,孟一耕,王娜,张韦,崔宽宽,尤宏争. pH值对星突江鲽消化酶活性的影响[J]. 饲料工业, 2012, 33(20): 18-22 |
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| 作者姓名： | 李文雯 孟一耕 王娜 张韦 崔宽宽 尤宏争 |
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| 作者单位： | 1. 天津市水产研究所,天津,300221
2. 天津市水产技术推广站,天津,300221 |
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| 摘 要： | 实验通过改变酶反应中的pH值,分析了星突江鲽蛋白酶、淀粉酶和脂肪酶的活性。结果表明,胃、肠和肝胰腺蛋白酶活性的最适pH值分别为3.8、8.2和7.8,各消化部位的最高点蛋白酶活性从高到低为:胃>肝胰腺>肠。胃、肠和肝胰腺淀粉酶活性的最适pH值分别为6.6、7.4和7.0,各消化部位的最高点淀粉酶活性从高到低为:肠>肝胰腺>胃。胃、肠和肝胰腺脂肪酶活性的最适pH值分别为7.4、7.8和7.8。各消化部位的最高点脂肪酶活性从高到低为:肝胰腺>肠>胃。
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| 关 键 词： | 星突江鲽 pH值 消化酶 |
Effect of pH on activities of digestive enzymes in platichthys stellatus |
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| Li Wenwen , Meng Yigeng , Wang Na , Zhang Wei , Cui Kuankuan , You Hongzheng. Effect of pH on activities of digestive enzymes in platichthys stellatus[J]. Feed Industry, 2012, 33(20): 18-22 |
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| Authors: | Li Wenwen Meng Yigeng Wang Na Zhang Wei Cui Kuankuan You Hongzheng |
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| Affiliation: | Li Wenwen,Meng Yigeng,Wang Na,Zhang Wei,Cui Kuankuan,You Hongzheng |
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| Abstract: | The research of the activity of protease,amylase and lipase with varying pH of enzyme reaction revealed that: the optimum pH of the protease activity in stomach,intestine and hepatopancreas is 3.8,8.2 and 7.8 respectively;the descending of the enzyme activity of protease in optimum pH is stomach>hepatopancreas>intestine.The optimum pH of the amylase activity in stomach,intestine and hepatopancreas is 6.6,7.4 and 7.0 respectively;the descending of the enzyme activity of amylase in optimum pH is intestine>hepatopancreas>stomach.The optimum pH of the lipase activity in stomach,intestine and hepatopancreas is 7.4,7.8 and 7.8 respectively;the descending of the enzyme activity of lipase in optimum pH is hepatopancreas>intestine>stomach. |
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| Keywords: | platichthys stellatus pH value digestive enzyme |
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