Abstract
The composition of milk has been reviewed by Jenness (1). It is an extremely complex mixture of components, consisting of water, lipids, carbohydrates, proteins, salts and many miscellaneous compounds. The largest component is water. The lipids are 98% triglycerides, mostly as globules. Carbohydrate is mainly as lactose. There are several classes of proteins. The largest group (80%) are phosphoproteins called “caseins”. They are associated with calcium in “casein micelles”, which are 20–300 μn in diameter. The α1s-, α s2-, β- and κ-caseins are in the ratio 3: 0.8: 3: 1. The other milk proteins are called “whey proteins” and include β-lactoglobulin, α-lactalbumin, blood serum albumin and immunoglobulins. In total there are probably about 105 kinds of molecules in milk.
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Quail, J.W., Yang, J., Schneider, P., Jia, Z. (1998). Crystal Structure of The Rhizomucor miehei Aspartic Proteinase. In: James, M.N.G. (eds) Aspartic Proteinases. Advances in Experimental Medicine and Biology, vol 436. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5373-1_39
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DOI: https://doi.org/10.1007/978-1-4615-5373-1_39
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