ウシ乳汁中に含まれるペプチドに関する研究 (第3報)

ウシwhey中のL画分中のアルギニン含有ペプチド

抄録

1. Fifteen arginyl peptides have been isolated from the L fraction in bovine milk whey, using the techniqes of chromatography and high voltage paper electrophoresis. Among the fifteen peptides, the ten peptides were ninhydrin negative but were only Sakaguchi's reaction positive indicating to have no amino terminal. Four strongly basic peptides, L-1-4-1, L-2-2-1, L-2-4-1, and L-3-5-1, were detected by high voltage paper electrophoresis.
2. Main components of the peptides in the L fraction consist of aspartic and glutamic acids, glycine, alanine, valine and basic amino acids, lysine and/or histidine besides arginine. No sulfur containing amino acids were detected with one exception of cystine in L-2-10-1.