For researching the purification process and the antioxidant activity of the polysaccharide from Licorice residues, the macroporous resins was chosen to study its selectivity, and the best condition was determined by dynamic adsorption and desorption experiments of HPD- 722 resin for the purification of the polysaccharide. At the same time, compared with vitamin C,the antioxidant activity of polysaccharide was examined by DPPH radical and hydroxyl radical scavenging activity. The results showed that HPD- 72...