Patent ID: 7553505
Filing Date: 2009-06-30
Classification: A61K

Abstract:
1. A method of extracting and purifying isoflavone aglycones comprising the steps of: a. choosing starting materials that comprise isoflavones; b. grinding said starting materials in step (a) into small particles to obtain a flour; c. extracting said flour obtained in step (b) with an organic solvent having a concentration of 95% to 99.99% to produce an organic solvent extract of isoflavones; d. hydrolyzing said organic solvent extract obtained in step (c) with acid to convert isoflavone glucosides into isoflavone aglycones to produce a hydrolysate; and e. adding water into said hydrolysate obtained in step (d) to increase the volume thereof to form an aqueous mixture and crystallizing said isoflavone aglycones from said aqueous mixture.