Ajinomoto Co., Ltd.

Eiji Majima

Kenzo Yokozeki

Kunisuke Izawa

Toshihide Yukawa

Yoshiteru Hirose

Koji Kubota

Takeru Sato

Hiroaki Takino

A process for producing L-serine by the combination of chemical synthesis and enzyme chemical synthesis is disclosed. In this process L-serine is biochemically produced from 2-oxo-axazolidine-4-carboxylic acid or a salt thereof.

Process for producing L-serine

A process for producing L-aspartyl-L-phenylalanine alkyl or aryl esters wherein L-aspartic acid and L-phenylalanine which is esterified with an alkyl group having at least two carbon atoms, an aryl group or an aralkyl group, are contacted in an aqueous medium with particular microorganisms or enzyme fractions from these microorganisms and the condensed product crystallizes out due to insolubility in the aqueous medium.

Process for the production of L-aspartyl-L-phenylalanine esters

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Kawasaki, Japan

Eiji Majima