Increase in Yield of Liquiritigenin from Glycyrrhiza uralensis by Using Acid Hydrolysis

Objective:This investigation was performed to develop a method to prepare liquiritigenin using acid hydrolysis.Method: Preliminary test was performed to see if purified liquiritin can be converted into liquiritigenin by acid hydrolysis,then liquiritin from Glycyrrhiza uralensis was converted into liquiritigenin use the same method.TLC,UV and HPLC were used to judge feasibility of this method.Result:The conversion rate of the purified liquiritin was 81.1%,and the conversion rate of the liquiritin from G.uralensis was 63.2%.Conclusion: This method is feasible,concise and results in high extraction rate.