Dihydrodaidzein-producing bacteria might lead to clarification of some of the mechanisms regulating the production of equol by fecal microbiota.

γ-Glu-Phe (γ-Glutamylphenylalanine) is a γ-3 glutamyl dipeptide found in sourdough.it is synthesized by Bacillus amyloliquefaciens (GBA) and Aspergillus oryzae (GAO). γ-Glu-Phe or the post-enzymatic reaction mixture enhances the umami intensity of commercial soy sauce and model chicken broth.

Ursocholic acid a bile acid found predominantly in bile of mammals.