ABSTRACT
Objective To optimize the extraction techique for Qingrejiedu oral liquid.Methods The amount of water, extraction time , extraction times and alcohol content were used as inspection factor, 3 levels per factor, with baicalin, chlorogenic acid , geniposide transfer rate and extraction rate as indexes,carries on Weighted comprehensive evaluation,the optimal extractin were screened by L9 (34 ) orthogonal test.ResuIts The optimal extraction condition of Qingrejiedu oral liquid were as follow:extraction for 3 times and 1h each time with 8-fold amount of water and 70% alcohol. ConcIusion Through the orthogonal test, the extraction process of Qingrejiedu oral liquid is designed reasonably, the result is reliable, and the extraction effect is good, and has higher application value.