Abstract:
PURPOSE: A method for preparing crude saponin composition with improved purity and enhanced effective saponin content is provided. CONSTITUTION: A method for preparing crude saponin composition with improved purity and enhanced effective saponin content from platycodon grandiflorum or extract thereof comprises: a step of extracting platycodon grandiflorum using distilled water, low alcohol of C1-C3, ethyl acetate, hexane, dichloromethane or mixture solvent thereof; a step of dissolving the extract in a distilled water and adsorbing saponin ingredient; a step of eluting the adsorbed saponin with ethanol or methanol solution to obtain saponin; and a step of purifying saponin using an organic solvent.