Optimization of surfactant assisted with ultrasonic extraction technology of total flavonoids from Berchemia kulingensis Schneid

With the index of yield of total flavonoids from Berchemia kulingensis Schneid,orthogonal experiment design was used to optimize the surfactant assisted with ultrasonic extraction technology of total flavonoids from Berchemia kulingensis Schneid in the basis of single factor. The results showed that the optimum extraction conditions of total flavonoids from Berchemia kulingensis Schneid as follows : SDS concentration3.0 g/L,ethanol concentration 65%,ultrasonic power 250 W,solvent-solid ratio 35∶1,the yield of total flavonoids was 3.81 mg/g,RSD was 1.53%,and this extraction technology was simple and had good reproducibility.