PRODUCTION OF D-HOMOPHENYLALANINES

PRODUCTION OF D-HOMOPHENYLALANINES

PURPOSE:To produce D-homophenylalanines at a low cost by reacting 5- phenethylhydantoins with a microorganism having the ability to asymmetrically cleave and hydrolyze hydantoin ring in an aqueous medium at pH 7-10. CONSTITUTION:5-Phenethylhydantoins expressed by formula I (X represents hydrogen, hy...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YASOHARA YOSHIHIKO, YANAGIDA YOSHIBUMI, YAMADA YUKIO, TAKAHASHI SATOMI, FUKAE MASABUMI
Format: Patent
Sprache:eng
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PROCESSES USING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:PURPOSE:To produce D-homophenylalanines at a low cost by reacting 5- phenethylhydantoins with a microorganism having the ability to asymmetrically cleave and hydrolyze hydantoin ring in an aqueous medium at pH 7-10. CONSTITUTION:5-Phenethylhydantoins expressed by formula I (X represents hydrogen, hydroxy group or lower alkyl group) are reacted with a culture of a microorganism having the ability to asymmetrically cleave and hydrolyze hydantoin ring, microbial cells or treated substance thereof in an aqueous medium at pH 7-10 and then converted into N-carbamoyl-D-homophenylalanines expressed by formula II (X is same as in formula I; * indicates R steric configuration relatively to asymmetric carbon atom). Microorganisms belonging to the genus Achromobacter, Aerobacter, Aeromonas, etc., are cited as specific examples of the above-mentioned microorganism.