马铃薯蛋白酶抑制因子特性的研究 |
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引用本文: | 杜启艳 路淑霞. 马铃薯蛋白酶抑制因子特性的研究[J]. 河南师范大学学报(自然科学版), 1998, 26(1): 107-110 |
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作者姓名: | 杜启艳 路淑霞 |
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作者单位: | 河南师范大学生物系 |
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基金项目: | 河南省科委自然科学基金 |
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摘 要: | 本文研究了马铃薯蛋白酶抑制因子的稳定性及其对胰蛋白酶和胰凝乳蛋白酶的抑制能力,结果表明:该抑制因子对胰蛋白酶活性的抑制作用较弱,最大抑制程度为65%;对胰凝乳蛋白酶活性的抑制作用较强,抑制程度最高可达95%以上,并且,它对pH及温度的变化均具有较强的稳定性.
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关 键 词: | 马铃薯;蛋白酶抑制因子;胰蛋白酶;胰凝乳蛋白酶 |
A Preliminary Study on Proteinase lnhibitor of Potatoes |
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Abstract: | The inhibition ability and stability of proteinase inhibitor of potatoes were studied in this paper. The results showed that PI has obvious inhibition ability to trypsin and chymotrypsin , but it is stronger to chymotrypsin than to trypsin. The largest inhibition to typsin and chymotrypsin was 65% and 95%respectively. The PI has good stability to the temperature and pH. |
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Keywords: | proteinase inhibitor trypsin chymotrypsin potato |
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