recombinant yeast with reduced pyruvate decarboxylase activity, use of this and method to produce acetoin

摘要

recombinant yeast, characterized in that it has reduced pyruvate decarboxylase activity in the genome from which it has been inserted: - one or more nucleic acids encoding a synthesis of acetolactate or als, - one or more nucleic acids encoding an acetolactate decarboxylase or ald, - one or more nucleic acids encoding a butanediol dehydrogenase or bdh, and - one or more copies of nucleic acids encoding a nadh oxidase or noxe.