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. 09, 2000
Filed:
Apr. 14, 1999
Tatsuo Hoshino, Kamakura, JP;
Masaaki Tazoe, Yokohama, JP;
Roche Vitamins, Inc., Parsippany, NJ (US);
Abstract
A process for the enzymatic production of vitamin B.sub.6 which includes incubating 1-deoxy-D-threo-pentulose and 4-hydroxy-L-threonine with an enzyme system that is cell free or essentially cell free and prepared from the cells of a microorganism belonging to the genus Rhizobium, Sinorhizobium, Flavobacterium, Chryseobacterium, Lactobacillus, Arthrobacter, Bacillus, Klebsiella, Escherichia, Pseudomonas, Stenotrophomonas, Enterobacter, Serratia, Corynebacterium, Brevibacterium, Exiguobacterium, Saccharomyces, Yamadazyma, Pichia or Candida, in the presence of NADP.sup.+, NAD.sup.+, ATP. Manganese and magnesium ions stimulate the above reaction. This process affords high yields of vitamin B.sub.6, a vitamin essential for the nutrition of animals, plants and microorganisms, and which is also useful as a medicine or food additive. In addition, an enzyme reaction system for producing vitamin B.sub.6 and a process for making the enzyme reaction system are also provided.