CAJ | 학술논문

采用超声波法提取酸枣叶多糖,考察酸枣叶粗多糖(CP)和脱蛋白多糖(DP)对·OH、O2-·、DPPH·和ABTS·的清除作用及还原能力.结果表明,CP和DP均具有较强的清除·OH、O2-·、DPPH·和ABTS·作用和还原能力,CP抗氧化活性高于DP;并且清除率与浓度之间存在明显量效关系.酸枣叶多糖是一种优良的天然抗氧化剂和自由基清除剂,具有广泛的开发前景.
채용초성파법제취산조협다당,고찰산조협조다당(CP)화탈단백다당(DP)대·OH、O2-·、DPPH·화ABTS·적청제작용급환원능력.결과표명,CP화DP균구유교강적청제·OH、O2-·、DPPH·화ABTS·작용화환원능력,CP항양화활성고우DP;병차청제솔여농도지간존재명현량효관계.산조협다당시일충우량적천연항양화제화자유기청제제,구유엄범적개발전경.
@@@@The polysaccharides from the leaves of Zizyphus jujuba cv. spinosa were extracted with ultrasonic method, meanwhile, the antioxidant activities of the crude polysaccharides (CP) and deproteinated polysaccharides (DP) were investigated in vitro by determining the scavenging effects on·OH, O2-·, DPPH·, ABTS·and reducing capacity. The results showed that both CP and DP exhibited strong scavenging effects on ·OH, O2-·, DPPH·, ABTS·and reducing capacity, the antioxidant activities of CP were higher than that of DP. The dose-effect relationship was obviously. The polysaccharide is an excellent natural antioxidant and scavenging reagent on radicals, and has a broad development prospects.