Optimization of ultrasonic-assisted extraction of phillyrin from Forsythia suspensa using response surface methodology
Zunlai Sheng1, Jichang Li1 and Yanbing Li2*
1College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.
2Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, P. R. China.
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