【摘要】 研究从水解液中提取酪蛋白磷酸肽的工艺条件及酪蛋白磷酸肽持钙能力的影响因素。结果表明:酪蛋白磷酸肽的最佳提取工艺条件为:CaCl2的终浓度为1.0g/L,乙醇的终浓度为50%,pH值为4.5,沉淀时间为6h。此条件下酪蛋白磷酸肽的N/P比是6.35,得率是13.85%。2.0g/L的酪蛋白磷酸肽在pH3.0～4.0或7.0～8.0时,可以充分延长形成磷酸钙沉淀的时间。更多还原

【Abstract】 The extraction processes and the effects on absorbing capacity for Ca of casein phospopepides from hydrolysate were researched.The results showed that:The optimum conditions for extraction of casein phosphopeptides were:the final concentration of CaCl2 1.0 g/L and the ethanol 50 %,pH4.5,the deposition time 6h.Under this conditions,the ratio of N/P was 6.35,the obtained ratio was 13.85 %.Under the condition of pH 3.0-4.0 or 7.0-8.0 and the concentration of casein phosphopeptides 0.2 g/L,the deposition time of calcium phosphate could fully be prolonged.更多还原