Abstract
Cow's milk and human milk proteins were separated into casein and serum protein, and these were digested with pepsin. The degree of digestion, sieve analysis of digested products, nitrogen quantity of TCA precipitation and separation with Sephadex G-50 were studied. The digestion of human milk protein was slower than that of cow's milk protein, but it was assumed that its digestion into lower peptides or amino acids was sufficiently fast.
