METHOD FOR PREPARING MESO-2,3-BUTANEDIOL

摘要

The present invention relates to a method for preparing meso-2,3-butanediol. More particularly, the present invention relates to colon bacillus for overexpressing meso-2,3-butaediol, which is cotransformed to an expression vector including at least one nucleotide SEQ ID selected from the group consisting of the following nucleotide SEQ IDs: (a) nucleotide-coding acetoin reductase having an amino acid sequence described in SEQ ID 5 of a sequence listing; (b) nucleotide-coding acetolactate decarboxylase; and (c) nucleotide-coding alcohol dehydrogenase. The cotransformed colon bacillus of the present invention can produce 2,3-butanediol, which could not be obtained from wild species. Therefore, it is possible to biosynthesize a large amount of meso-2,3-butanediol through the biosynthesis path expression of meso-2,3-butanediol from glucose, and through metabolic flux change by means of the insertion of the genes of other species.