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:
Nov. 23, 1982
Filed:
Jun. 17, 1981
Applicant:
Inventors:
Akio Mimura, Fuji, JP;
Yasuyuki Takahashi, Fuji, JP;
Katsumi Yuasa, Fuji, JP;
Mitsuru Shibukawa, Yokohama, JP;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12R / ; C12R / ;
U.S. Cl.
CPC ...
435108 ; 435253 ; 435822 ; 435852 ;
Abstract
A process for producing L-tryptophan or a derivative thereof is disclosed, wherein an indole compound is reacted with serine, or with pyruvic acid and ammonium ion, in the presence of a culture or treated culture of a microorganism of genus Aeromonas or genus Klebsiella having the ability to produce L-tryptophan or a derivative thereof from an indole compound and serine, or from an indole compound, pyruvic acid and/or its salt, and ammonium ion.