Optimization of the extraction technology and free radical scavenging activity of polysaccharide from Illicium micrantbum

The extraction of Illicium micrantbum polysaccharide and its scavenging capacity of free radical were studied in this paper. Through single factor experiment and orthogonal experiment, the optimum extracting conditions were investigated through that the temperature was 75℃, material to water 1 ∶ 14, extracting time 2h, ultrasonic power 300 W.The polysaccharide yield was up to 0.83%.Meanwhile, the polysaccharide of Illicium micrantbum had strong scavenging effect on free radical.