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. 25, 1976
Filed:
Mar. 21, 1975
Applicant:
Inventors:
Takayasu Sonoyama, Sakai, JA;
Hiroyoshi Tani, Moriguchi, JA;
Bunji Kageyama, Nagaokakyo, JA;
Kobee Kobayashi, Nishinomiya, JA;
Tahiko Honjo, Minoo, JA;
Shigeo Yagi, Takatsuki, JA;
Assignee:
Shionogi & Co., Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12D / ;
U.S. Cl.
CPC ...
195 30 ;
Abstract
2-Keto-L-gulonic acid is prepared from 2,5-diketo-D-gluconic acid through microbial conversion. The 2-keto-L-gulonic acid producing microorganism available for this microbial conversion includes strains which belong to the genus Corynebacterium. The incubation of the microorganism in a medium containing 2,5-diketo-D-gliconic acid as well as the direct contact of any products obtained from the microbial cells with a substrate containing said 2,5-diketo-D-gluconic acid may be used in the disclosed process.