超声波辅助下提取绿茶中绿原酸工艺优化

o optimize the extraction technology of chlorogenle in green tea.The content of chlorogenic acid was determined by an ultraviolet visible spectrophotometric method.The ultrasonic-assisted extraction of chlorogenic acid in green tea was optimized by a single factor test and an orthogonal experiment.The results show that Chlorogenic acid extraction rate was 2.774%in green tea ,the optimal extraction conditions were: ultrasonic irradiation time 80 min,volume fraction of ethanol 70%,ultrasonic power 90W,liquid and material ratio 1:25.It contains rich chlorogenic acid and other chemical active ingredient, further study on its chemical active ingredients and pharmacological effects, to develop its health care function and medicinal value has great realistic significance.