Ajinomoto Co., Ltd.

Sigeho Ikeda

Yoshio Kawahara

Yasuhiko Yoshihara

Yasutsugu Yamada

A process for producing 5'-inosinic acid by culturing 5'-inosinic acid-producing bacteria in a medium containing inosine, and cane molasses, sucrose or glucose as the main carbon source and containing at least one of L-methylglycine, N,N-dimethylglycine, N,N,N-trimethylglycine and (2-hydroxyethyl)trimethylammonium in an amount effective to enhance the yield of 5'-inosinic acid, and harvesting the 5'-inosinic acid produced.

Process for producing 5'-inosinic acid by fermentation

A process is provided for producing an L-amino acid, which entails culturing bacteria producing the L-amino acid in a medium containing cane molasses, sucrose or glucose as a main carbon source and containing at least one substance selected from the group consisting of N-methylglycine, N,N-dimethylglycine, N,N,N-trimethylglycine and (2-hydroxyethyl)trimethyl ammonium in an amount effective to enhance the yield of the L-amino acid; and harvesting the L-amino acid, and wherein the L-amino acid is selected from the group consisting of L-glutamic acid, L-lysine, L-glutamine, L-arginine, L-isoleucine, L-valine, L-threonine, L-histidine, L-phenylalanine, L-tryptophan, L-serine, L-ornithine, L-citrulline, L-tyrosine and L-leucine.

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Kawasaki, Japan

Sigeho Ikeda