Production of L-amino acids from alpha-keto acids by fermentation

摘要

L-amino acids are prepared by contacting a logarithmically growing culture of suitable microorganisms e.g. a brevibacterium, corynebacterium or E. Coli with the corresponding alpha-keto acids. The conversion of alpha-keto acid to L-amino acid takes place via a transamination reaction driven by a coupled enzyme system which is provided by the growing culture.