Method for producing polymer, method for producing organic acid, and organic acid-producing microorganism

摘要

The present invention provides a method of producing a polymer, which comprises the step of performing a polymerization reaction using, as a starting material, an organic acid obtained by allowing a microorganism or a treated cell thereof to act on an organic raw material, wherein said microorganism has an ability to produce an organic acid and has been modified so as to produce less aromatic carboxylic acid as compared to an unmodified strain.

主权项

1. A Coryneform bacterium, which has an ability to produce an organic acid and has been modified so that at least one enzyme activity selected from the group consisting of dehydroquinate synthase activity, dehydroquinate dehydratase activity and dehydroshikimate dehydratase activity is reduced as compared to an unmodified strain, and the production of an aromatic carboxylic acid from a fermentable sugar is thereby reduced, wherein the at least one enzyme activity is reduced by disrupting a gene encoding the at least one enzyme, mutating a gene encoding the at least one enzyme, or modifying an expression control sequence of a gene encoding the at least one enzyme.