Patent ID: 6410699
Filing Date: 2002-06-25
Classification: C07D,C07H

Abstract:
A process for preparation of an isoflavone aglycone compound, comprising the steps of:(1) removing fat from fermented soybeans to form a defatted material and drying the defatted material; (2) subjecting the defatted material obtained in step (1) to extraction with a solvent to form an extract containing one or more isoflavone compounds and concentrating the extract to dryness; (3) dissolving the extract from in step (2) in a second solvent to form a solution, diluting the solution with water, and separating insoluble matter that precipitates from the solution; and (4) washing the insoluble matter obtained in step (3), and drying it to remove the second solvent, thereby obtaining one or more isoflavone aglycone compounds.