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Objective: To study the extraction process of glabridin from Glycyrrhiza glabra. Methods: The solid-liquid ratio, extraction time and extraction temperature are the three main factors in the experiment, and the extract solvent is ethyl acetate. Establish the response surface quadratic regression equation of glabridin extraction rate and purity. Results:The results indicate that the optimum conditions for glabridin are as follows: solvent is ethyl acetate, extraction time is 90 min, the ratio ofdoi:10.14725/gjicmwm.v1n1a58 fatcat:sneyosd5a5hcrpupnxqgo446u4