Process Study of Ultrasonic Wave Extraction of the Chlorogenic Acid from Tussilago farfara L.

Objective:To optimize ultrasonic wave extraction technology of the chlorogenic acid from Tussilago farfara L.Methods:In the method of one -way and orthogonal test,the ethanol concentration,solid -liquid ration and extraction time were studied with the chlorogenic acid from Tussilago farfara L.as the target of the test.Results:The concentration of alcohol is the major factor followed by extraction time and solid-liquid ration.Conclusion:The parameters of the best ultrasonic wave extraction technology of the chlorogenic acid from Tussilago farfara L.are as follows:70%ethanol,solid liquid ration 1:30,extracting 30 min.