Dry extract which is rich in isoflavones in the form of aglycones and process for preparing the same

摘要

A process for extracting isoflavones from a plant material, wherein the said process comprises treating the plant material with an organic solvent, characterized in that the said extraction is preceded by a step of maceration in water. A dry extract containing, as aglycones, at least 8% (w/w) of one or more isoflavones or formulawhereinR1=OH and R2=H, Genistein;R1=H and R2=H, Daidzein;R1=H and R2=CH3, Formononetin;R1=OH and R2=CH3, Biochanin A.