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.

Date of Patent:
Oct. 26, 1993

Filed:

Jul. 17, 1991
Applicant:
Inventors:

Masato Terasawa, Ami, JP;

Mitsunobu Shimazu, Ami, JP;

Fuzio Endo, Ami, JP;

Hideaki Yukawa, Ami, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435108 ; 4352529 ; 435260 ; 435849 ;
Abstract

A method of selectively inhibiting pyruvic acid decomposition activity in microorganism cells containing tryptophanase or a treated product thereof, which comprises heat-treating said cells or the treated product thereof in the presence of an ammonium ion.


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