In order to utilize buckwheat efficiently,the total flavonoids content of buckwheat bran and rice was determined,and the extracting technology of total flavonoids from the bran and rice; In this study, factors influencing macro porous resin for separation and purification of flavonoids in buckwheat bran and rice are analyzed, and optimized process conditions. The results showed that the extracting yield of flavonoids from buckwheat rice was 67.01% under such conditions: the ethanol concent ration wa...