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:
Jul. 07, 1998
Filed:
Jul. 17, 1996
Applicant:
Inventors:
Kazuhisa Hatakeyama, Ibaraki-ken, JP;
Makoto Goto, Ibaraki-ken, JP;
Masato Terasawa, Ibaraki-ken, JP;
Hideaki Yukawa, Ibaraki-ken, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435108 ; 435 42 ; 4351723 ; 43525232 ;
Abstract
The present invention relates to a process for producing L-tryptophan in a single-stage reaction, comprising carrying out an L-tryptophan producing reaction with glycine, formaldehyde and indole as raw materials in an aqueous solution in the presence of microbial cells having serine transhydroxymethylase or a treated products thereof and microbial cells having tryptophan synthase or tryptophanase, or a treated products thereof; and collecting produced L-tryptophan from the reaction solution.