Dalgleish D G
J Dairy Res. 1986 Feb;53(1):43-51. doi: 10.1017/s002202990002464x.
Fast protein liquid chromatography was used to study the kappa-casein fraction of casein micelles from bulk milk and from milk from individual animals homozygous for kappa-caseins A and B. The extent of glycosylation of the kappa-casein appeared to have no effect on its distribution in casein micelles of different sizes, nor did it affect the rate at which kappa-casein was destroyed during renneting. The rate of breakdown of kappa-casein during renneting was also almost independent of micellar size. The results may indicate a difference between methods which analyse for intact kappa-casein or for the product macropeptide during renneting.
采用快速蛋白质液相色谱法研究了原料乳以及κ-酪蛋白A和B纯合个体所产牛奶中酪蛋白胶粒的κ-酪蛋白组分。κ-酪蛋白的糖基化程度似乎对其在不同大小酪蛋白胶粒中的分布没有影响，也不影响凝乳酶作用期间κ-酪蛋白被破坏的速率。凝乳酶作用期间κ-酪蛋白的分解速率也几乎与胶粒大小无关。这些结果可能表明在凝乳酶作用期间分析完整κ-酪蛋白或其产物大肽的方法之间存在差异。
