Optimization of Microwaves-assisted Extraction Technology for Total Polyphenols from Banana Peel

Objective: To optimize microwaves-assisted extraction technology of total polyphenols from banana peel.Method: Total polyphenols was extracted by microwaves-assisted technique with yield of total polyphenols as index,effect of the concentration of ethanol,microwave power,extraction time and solid-liquid ratio on extraction technology of total polyphenols was investigated by single-factor tests and orthogonal test.Result: Optimum extraction technology was as following: extracted 100 s with 35 times the amount of 50% ethanol under microwaves power of 380 W.Yield of total polyphenols was 2.16%.Conclusion: Microwave-assisted technology could be adopted for extracting total polyphenols with shorten time,high efficiency and other advantages.