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:
Aug. 17, 2004
Filed:
Aug. 23, 2001
Applicant:
Inventors:
Assignee:
Roche Vitamins, Inc., Parsippany, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 1/704 ; C12P 7/58 ; C12N 1/20 ;
U.S. Cl.
CPC ...
C12P 1/704 ; C12P 7/58 ; C12N 1/20 ;
Abstract
A process for producing L-ascorbic acid or D-erythorbic acid, or in each case its sodium, potassium or calcium salt, from 2-keto-L-gulonic acid or 2-keto-D-gluconic acid, or in each case its sodium, potassium or calcium salt, that involves incubating 2-keto-L-gulonic acid or 2-keto-D-gluconic acid, each as the free acid or as its sodium, potassium or calcium salt, and the cells of a thermoacidophilic microorganism at temperatures from about 30° C. to about 100° C., and at a pH from about 1 to about 6, in a solution, to form L-ascorbic acid or D-erythorbic acid or an appropriate salt thereof, and isolating said product from the solution.