SUBSTANCE PRODUCED BY BACTERIA COMPOSING KEFIR GRAINS

To provide a daily edible food composition which is useful for prevention or delaying progress of a disease caused by dysfunction of an organ, where a part of action mechanism is clear.SOLUTION: Provided is a food composition which contains a fermentation product derived from soy beans, produced by microorganism groups including: lactic acid bacteria group containing at least one lactic acid bacteria of genus Lactobacillus and at least one lactic acid bacteria of genus Lactococcus; and a yeast group including at least one yeast of genus Saccharomyces and at least one yeast of genus Kluyveromyces, where the fermentation product derived from soy beans contains equol, a γ-amino acid, and an antibacterial substance.SELECTED DRAWING: Figure 3 【課題】生体臓器の機能障害による疾患の予防または進行の遅延に有用である日常的に摂取可能な食品組成物であり、その作用機序の一部が明らかである食品組成物を提供することを目的とする。【解決手段】ラクトバチルス属の少なくとも１種の乳酸菌およびラクトコッカス属の少なくとも１種の乳酸菌を含む乳酸菌群；ならびにサッカロミセス属の少なくとも１種の酵母およびクルイベロミセス属の少なくとも１種の酵母を含む酵母群；を含む微生物群の大豆由来発酵産物を含み、前記大豆由来発酵産物がエクオール、γ−アミノ酸、および抗菌物質を含有する、食品組成物を提供する。【選択図】図３