エクオール産生能が維持されたエクオール産生微生物を含む発酵製品、及びその製造方法

摘要

PROBLEM TO BE SOLVED: To provide a fermented product including an equol-producing microorganism maintaining equol productivity in a state of viable cells.SOLUTION: The fermented product including an equol-producing microorganism maintaining equol productivity in a state of viable cells can be produced by (1) preparing a mother starter by using the equol-producing microorganism and fermenting at a pH of 5.0 or higher in the presence of daidzein under an anaerobic condition, (2) preparing a bulk starter by using the mother starter and fermenting at a pH of 5.0 or higher in the presence of daidzein, and (3) preparing the fermented product by using the bulk starter and fermenting it in a medium containing soybean flour or soybean milk, in producing the fermented product using the equol-producing microorganism and soybean flour or soybean milk as a raw material.