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:
Mar. 04, 1986
Filed:
Jun. 06, 1984
Applicant:
Inventors:
Patricia J Vollmer, Paducah, KY (US);
Jeffrey J Schruben, Paducah, KY (US);
Assignee:
Genex Corporation, Rockville, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435108 ; 435188 ; 435232 ;
Abstract
A method is disclosed for producing L-phenylalanine using, as a catalyst, phenylalanine ammonia-lyase (PAL). Reducing agents are added to a bioreaction mixture containing t-cinnamic acid and ammonia or soluble ammonium salts, in order to reduce the effects of oxygen on catalyst life. The reducing agents of the invention include any substance that lowers the overall electrochemical potential of the solution, or which has a tendency to donate electrons to an oxidizing agent.