Patent ID: 7118895

Claim:
A process for producing an aglycon which comprises forming an aglycon by treating, with diglycosidase, a glycoside containing an isoflavone as the aglycon, wherein said diglycosidase has activity to act upon a disaccharide glycoside to release saccharides in a disaccharide unit, wherein said diglycosidase is isolated from a micoroorganism, wherein said diglycosidase is not inhibited by free glucose, wherein said diglycosidase has an optimum temperature of about 55° C., wherein said diglycosidase has an optimum pH of about 3.5–5, and wherein the diglycosidase is diglycosidase produced by Penicillium multicolor IAM 7153 or a mutant strain thereof.