Abstract: Apple polyphenols is a kind of functional compounds in apple with strong antioxidant activity. Several extracting reagents, different extracting temperature, time, times and ratio between material and organic reagents. It indicated that the optional conditions for organic reagents extraction is: 70% ethanol solvent was used to extract apple polyphenols from the dried apple powder by 1:20(apple dried powder: ethanol solvent) under 30℃ two times and 30min for each time. And the optional conditions for ultrasonic wave extraction is: 70% ethanol solvent was used to extract apple polyphenols samt to that of organic reagents, the extracting temperature is ice bath and the ratio betweent apple powder and 70% ethanol solvent is 1:30 not farmilar to that of organic reagents extraction, and the extractiong times is 2 times same as that of organic reagents extraction. From all above, the optional method for apple polyphenols extracting is ultrasonic wave which can be used to get more apple polyphe- nols than that by organic reagents.

Key words: apple polyphenols, organic reagents, extraction, ultrasonic ware