α-Lactalbumin and Serum Albumin in Human Milk

Hydrogen ion, nitrogen distribution, ~-lactalbumin and serum albumin of human milk at t~rst to fourth month of lactation were investigated.The average pH of milk was 7.34.Total N, casein N, whey protein N and nonprotein N of the milk were 179.0, 45.8, 90.5 and 41.5 mg per 100 ml respectively.Quantitative amounts of ~-lactalbumin and serum albumin in milk by disc gel electrophoresis were .224and .072g, respectively, per 100 ml of milk.