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[Objective] To study the extraction process of Pinellia ternate(Thunb.) Breit.polysaccharide and its scavenging effect on radical.[Method] Based on single factor test,the extraction conditions were optimized by orthogonal test.The scavenging capacity of Pinellia ternate(Thunb.) Breit.polysaccharide was investigated by hydroxyl free radical system.[Result]The optimal extraction conditions were as follows:extraction temperature of 55 ℃,extraction duration of 3.5 h,pH value of 4.5 and cellulose amount of 4%.As concentration of 10 mg/ml,the scavenging rate of polysaccharide on radical reached 71.55%.[Conclusion] The optimum extraction conditions of Pinellia ternate(Thunb.) Breit.polysaccharide by cellulase method was obtained in this study,and its strong scavenging effect on hydroxyl radical was confirmed.
[Method] Based on single factor test, the extraction conditions were optimized by orthogonal test. The scavenging capacity of Pinellia ternate (Thunb.) Breit.polysaccharide and its scavenging effect on radical. Thunb.) Breit.polysaccharide was investigated by hydroxyl free radical system. [Result] The optimal extraction conditions were as follows: extraction temperature of 55 ° C, extraction duration of 3.5 h, pH value of 4.5 and cellulose amount of 4% of 10 mg / ml, the scavenging rate of polysaccharide on radical reached 71.55%. [Conclusion] The optimum extraction conditions of Pinellia ternate (Thunb.) Breit.polysaccharide by cellulase method was obtained in this study, and its strong scavenging effect on hydroxyl radical was confirmed