| Abstract: | Cimicifugae Rhizome (RC) is one of many commonly used traditional Chinese medicines. This study used Box-Behnken Design (BBD), a widely used form of response surface methodology (RSM), to optimize the conditions of the ultrasound-assisted extraction (UAE) for the extraction of phenolic compounds from CimicifugaeRhizome. The influence of three independent variables,including ethanol concentration (%), extraction time (min) and solvent-to-material ratio (mL/g), on the extraction yields of phenolic compounds were examined. The results demonstrated that the optimal ultrasound-assisted extraction (UAE) conditions were as follows: ethanol concentration of 68%, an extraction time of 19 min, and solvent-to-material ratio of 30 mL/g for the extraction of caffeic acid, cimicifugoside, ferulic acid, isoferulicacid, cimifugin, 4'-O-β-glucopyranosyl-5-O-methylvisamminol. These results demonstrated the suitability of UAE for the extraction of phenolic compounds from CimicifugaeRhizome. |
