Genes involved in the acetic acid bacteria quorum-sensing system, acetic acid bacteria are bred by modifying the gene, and a vinegar production method of using the acetic acid bacteria

摘要

PROBLEM TO BE SOLVED: To obtain a gene involved in the acetic acid fermentation ability, to improve the acetic acid fermentation ability of an acetic acid bacterium by decreasing or eliminating the function of a protein encoded by the gene, and to provide a method for producing a vinegar having a higher acetic acid concentration with high degree of efficiency.;SOLUTION: The gene encoding an acyl homoserine lactone synthase or an acyl homoserine lactone receptor transcription factor which is involved in the quorum-sensing of an acetic acid bacterium is obtained. The gene is modified so as to cause the decrease or elimination of the function of the quorum-sensing system in an acetic acid bacterium, thereby producing an acetic acid bacterium having a remarkably improved acetic acid fermentation ability. Provided is a method for producing a vinegar having a high acetic acid concentration with efficiency by using the acetic acid bacterium.;COPYRIGHT: (C)2008,JPO&INPIT