The deacidification of crude peony seed oil by a solvent extraction method which can avoid the flavor deterioration of peony seed oil when purified by alkali refining was optimized using single factor and orthogonal array experiments. The optimal extraction conditions were determined to be 20 min extractions at 40 ℃ performed three times using 95% ethanol as the extraction solvent with a solid to solvent ratio of 1:2.5(g/m L), resulting in a removal rate of free fatty acids of 93.12% and a deacidified oil yield of 83.23%. After the deacidifica...
