The isolation and purification of glycyrrhizin from licorice with resin column were studied. The glycyrrhizin absorption amount on the D 101 and HP20 resin were 238.7 mg/g and 278.9 mg/g. The good elution concentration of ethanol was 50 % for D 101 resin, and 60 % for HP20 resin. The licorice root was ground, extracted by hot water, filtered, concentrated by vacuum distillation, precipitated by the H 2SO 4, and dried to abtain 9% crude glycyrrhizin. The crude glycyrrhizin was purified by the D 101 and HP20 resin, the purified glycyrrhizin was 60 % for D 101 resin column, and 86 % for the HP20 resin column.
Food and Fermentation Industries
licorice, glycyrrhizin, resin column