Method for producing soybean powder with increased isoflavone contents using far-infrared irradiation

摘要

PURPOSE: A producing method of soybean powder with improved content of isoflavone is provided to use far infrared rays for improving the concentration of genistein and daidzein. CONSTITUTION: A producing method of soybean powder with improved content of isoflavone comprises the following steps: crushing soybeans; and radiating the soybeans with far infrared rays at 140-200 deg. C for 15-60 minutes. The isoflavone is selected from genistein or daidzein. The wavelength of the far infrared rays is 2-15 micrometers.