Optimization of Ultrasonic Extraction Technology of Momordica charantia L. Flavones by Orthogonal Test

The ultrasonic extraction techniques of momordica charantia L. flavones were optimized by orthogonal test.The optimum extraction conditions were summed up as follows: ultrasonic power as 80 W, 20 min extraction time, ethanol solution (volume fraction as 90 %) as extraction solution, and the ratio of materials to solution as 1∶30 (g∶ mL). Besides, this method was compared with traditional extraction method and the comparison results suggested that ultrasonic extraction method was better because of its advantages such as time-saving and high efficiency.