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DOI:
华东理工大学学报(自然科学版):1999,(6):574-577
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酪蛋白磷酸肽的制备及性质
Preparation and Properties of Casein Phosphopeptides
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中文摘要: 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% )。
Abstract: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.
文章编号:     中图分类号:Q516.03 Q516.02    文献标志码:
基金项目:
杨曜中  欧伶 华东理工大学生物化学研究所!上海200237
引用本文:
杨曜中,欧伶.酪蛋白磷酸肽的制备及性质[J].华东理工大学学报(自然科学版),DOI:.

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