Abstract:This paper employed the ultrasonic method to extract polysaccharides from honeysuckle sourced from Kaifeng,Fengqiu,and Linzhou in Henan,Pingyi in Shandong,Julu in Hebei,and Tongwei in Gansu. The yield,chemical composition,physical and chemical properties,and antioxidant activity were compared and analyzed. The results showed that the yield of polysaccharides from Julu,Hebei,was the highest at 9.45%. The total sugar content in the polysaccharides from Tongwei,Gansu,was the highest at 62.32%,while the protein content in the polysaccharides from Kaifeng,Henan,was the lowest at 1.09%. The polysaccharides of honeysuckle from four producing areas contained uronic acid,indicating that the polysaccharides extracted from these areas were acidic sugars. In terms of physical and chemical properties,the polysaccharides from Kaifeng demonstrated better water and oil holding capacities. The water absorption index and swelling power of the polysaccharides from Julu,Hebei,were higher,while the solubility of the polysaccharides from Kaifeng,Henan,was low. The antioxidant activity of polysaccharides from the six producing areas exhibited a dose-dependent effect within a certain range. The IC50 for ABTS+· scavenging of the polysaccharides from Julu,Hebei,was 0.389 8 mg/mL,showing good ABTS+·scavenging ability. The IC50 for the total reducing power of the polysaccharides from Pingyi,Shandong,was 2.395 0 mg/mL,indicating strong total reducing power. The IC50 for the DPPH·scavenging rate of the polysaccharides from Tongwei,Gansu,was 0.090 4 mg/mL,demonstrating strong DPPH·scavenging ability.