Apple pomace is rich in our country, and it has a broad prospect to produce apple polyphenol with physiological activity using apple pomace. we take apple pomace as research material in this research, ultrasonic assisted extraction technology was used, and the optimal conditions of polyphenol extraction was determined by response surface methodology design. Apple polyphenol preliminarily purified by Column Chromatography of Macroreticular Resin was isolated by Sephadex LH-20.Solution components w...