Amino Acid Requirement of Lactobacillus casei.

Abstract

The amino acid requirement of Lucfnbacillus casei was determined on a medium containing glucose, sodium acetate, salts, riboflavin, pantothenic acid, nicotinic acid, biotin, pyridoxine, adenine, and concentrates of the eluate factor (folic acid). The simplest amino acid mixture that would yield maximum growth on repeated subculture was: leucine, serine, phenylalanine, glutamic acid, valine, aspartic acid, cystine, arginine, tryptophane. tyrosine threonine, methionine, alanine, isoleucine, lysine, and histidine.