On the Human Milk Score, Egg Score and Cow's Milk Score of Food Protein in Kagoshima Prefecture

Abstract

Protein score (FAO, 1957) and chemical scores (FAO·WHO, 1965) calculated from the same data of the nitrogen intake in Kagoshima prefecture, were compared with each other. Both of the values of human milk and egg scores obtained were similar to the protein score, about 76, and the limiting amino acids of the former two were tryptophan and sulfer-containg amino acids, respectively. Those amino acids were also the limiting factor in the case of protein score. The cow's milk score was rather high, about 92, and the limiting factor were considerably different from the other scores, which were lysine and leucine other than tryptophan.