详细信息
文献类型:期刊文献
中文题名:酪蛋白磷酸肽的制备及性质
英文题名:Preparation and Properties of Casein Phosphopeptides
作者:杨曜中[1];欧伶[1];葛轶群[1];宋聿文[1]
机构:[1]华东理工大学生物化学研究所,上海200237
年份:1999
卷号:25
期号:6
起止页码:574
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;国家哲学社会科学学术期刊数据库;EI(收录号:2000045124492);Scopus;北大核心:【北大核心1996】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:酪蛋白磷酸肽;胰蛋白酶;Alcalase;制备;性质
外文关键词:casein phospopeptides; trypsin; alcalase; preparation; property
摘要:用不同的蛋白水解酶水解牛乳酪蛋白,通过钙-乙醇沉淀法和离子交换法从水解产物中提取酪蛋白磷酸肽(CPPs),并对CPPs进行体外化学分析及体内生物学功能鉴定,结果表明:用双酶法(胰蛋白酶和Alcalase)制得的CPPs3(平均相对分子质量为4 066,摩尔N/P为5.48)在体外的持钙能力最强,连续喂食该样品的小鼠对钙的吸收明显提高(吸收率达56% )。
Various casein phosphopeptides (CPPs) were extracted by Ca 2+ /ethanol precipitation and ion exchange chromatography through hydrolyzing milk casein enzymaticlly, and then were determined in vitro and in vivo. The results showed that CPPs3 (MW 4 066, N/P 5.48) derived from bienzymatic hydrolysate (trypsin and alcalase) is the best one in calcium binding capacity in vitro and in improving Ca 2+ absorption in mice (Ca 2+ absorption rate is 56%). These two data were superior to the CPPs derived from single enzymatic hydrolysate and other CPPs products.
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