Study on Extraction Process of Chlorogenic Acid in Honeysuckle Flower with Orthogonal Test

The effect of four factors on the concentration of chlorogenic acid in honeysuckle's extraction with orthogonal test is examined.The four factors are the concentration of ethanol,volume of solvent,extraction hour and extraction times.This method does not need chlorogenic acid.The results show that the concentration of ethanol has an apparent effect on the concentration of chlorogenic acid.