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:
Apr. 14, 1987
Filed:
Apr. 11, 1983
Peter C Maxwell, New Providence, NJ (US);
Jin-Han Hsieh, Parsippany, NJ (US);
John C Fieschko, Iselin, NJ (US);
Celanese Corporation, New York, NY (US);
Abstract
This invention provides a process for stabilizing a population of a mutant microorganism in a bioconversion system whereby growth of revertant cells is suppressed. The process involves limiting a nutrient which is essential for cell growth so that the cells selectively grow on a growth carbon source rather than on a non-growth carbon source which is present. The revertant cells being suppressed have a similar ability as the parent strain of the mutant microorganism to grow on the non-growth carbon source in the bioconversion system. The non-growth carbon source in the bioconversion system is metabolized to an extracellular accumulating quantity of a desired metabolite, e.g., toluene is converted to muconic acid.