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[Objective] To optimize the extraction technology of paeonol from CORTEX MOUTAN.[Method] Taking extraction rate/yield of paeonol as index,effects of ultrasonic temperature,ultrasonic time,extracting solvent concentration (NaCl concentration) and solid-liquid ratio (NaCl dosage) on extraction rate/yield of paeonol from CORTEX MOUTAN were investigated by L9 (34) orthogonal test.[Result] The optimum extraction technology of paeonol was as follows:ultrasonic temperature of 50 ℃,ultrasonic time of 20 min,NaCl concentration of 3% and solid-liquid ratio of 1:10 g/ml.Under this condition,the extraction yield and rate of paeonol were 0.964 0 g and 85.69%,respectively.[Conclusion] Ultrasonic wave had obvious effects on extraction rate/yield of paeonol from CORTEX MOUTAN.
[Objective] To optimize the extraction technology of paeonol from CORTEX MOUTAN. [Method] Taking extraction rate / yield of paeonol as index, effects of ultrasonic temperature, ultrasonic time, extracting solvent concentration (NaCl concentration) and solid-liquid ratio ) on extraction rate / yield of paeonol from CORTEX MOUTAN were investigated by L9 (34) orthogonal test. [Result] The optimum extraction technology of paeonol was as follows: ultrasonic temperature of 50 ° C, ultrasonic time of 20 min, NaCl concentration of 3 % and solid-liquid ratio of 1:10 g / ml. Under this condition, the extraction yield and rate of paeonol were 0.964 0 g and 85.69%, respectively. [Conclusion] Ultrasonic wave had obvious effects on extraction rate / yield of paeonol from CORTEX MOUTAN.