Extraction of Flavonoids from Persimmon Leaves Process Research

Studied three kinds of persimmon leaf flavones extraction process and process parameters,through the orthogonal experiment,the ultrasonic water extraction,ultrasonic solvent extraction and microwave extraction method of the optimum process conditions.showed that: three methods in optimum conditions of flavonoids extraction rate were 5.28 %,6.19 % and 6.15 %;ultrasonic water extraction method is economical and practical,suitable for the production,ultrasonic solvent extraction method and microwave solvent extraction method of extracting flavone substance is higher than water extraction,ultrasonic wave of about 0.8 % higher.