The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1995
Filed:
May. 25, 1993
Applicant:
Inventors:
Norimasa Onishi, Kawasaki, JP;
Megumi Shimaoka, Kawasaki, JP;
Ikuo Kira, Kawasaki, JP;
Masakazu Nakazawa, Kawasaki, JP;
Assignee:
Ajinomoto Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12P / ;
U.S. Cl.
CPC ...
435135 ; 435280 ; 435911 ; 435940 ;
Abstract
The present invention provides a method of the production of (S)-.gamma.-halogenated-.beta.-hydroxybutyric acid esters at a high accumulation and a high yield. A microorganism belonging to the genus Stemphylium, Alternaria, Corynespora or Torulaspora is used to asymmetrically reduce a .gamma.-halogenated-acetoacetic acid ester into an (S)-.gamma.-halogenated-.beta.-hydroxybutyric acid ester, and the (S)-.gamma.-halogenated-.beta.-hydroxybutyric acid ester produced is recovered from the reaction mixture.