PRODUIT DE FERMENTATION CONTENANT UN MICRO-ORGANISME PRODUCTEUR D'EQUOL AYANT UNE CAPACITE CONSTANTE A PRODUIRE DE L'EQUOL, ET SON PROCEDE DE PRODUCTION
An object of the present invention is to provide afermented product containing equol-producing microorganisms inthe state of living cells by which equol production ability ismaintained.When producing a fermented material by using an equol-producing microorganism, with soybean powder or soybean milk asraw materials, (1) preparing a mother starter by fermentationunder anaerobic conditions by using an equol-producingmicroorganism in the presence of a daidzein species at pH 5.0 orhigher, (2) preparing a bulk starter by fermentation underanaerobic conditions by using said mother starter in the presenceof a daidzein species at pH 5.0 or higher, and (3) preparing afermented material by fermentation by using said bulk starter ina medium containing soybean powder or soybean milk, enablesproduction of a fermented material containing microorganisms inthe state of living cells in which the equol production abilityis maintained.