Study on Extraction Technology of Polyphenols from Banana Peel

[Objective]The extraction technology of polyphenols from banana peel was studied.[Method] The solvent concentration,extraction period,temperature and ratio of material and water were determined by orthogonal test.[Result]The ethanol concentration,the extraction temperature,the extraction period,the ratio of material and water were the main factors that affected the extraction rate with a sequence from big to small.The optimum extraction technology was determined such as 80% ethanol concentration,extraction period 2.5 h,extraction temperature 70 ℃,and ratio of material and water 1:3.[Conclusion] The determination of the optimum extraction technology provided the basis of the utilization of the banana resource and the industrial preparation of the polyphenols from banana peel.