摘要
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。
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, 05-·, DPPH·, ABTS· and reducing capacity. The results showed that both CP and DP exhibited strong scavenging effects on ·OH, 02-· , 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.
出处
《食品研究与开发》
CAS
北大核心
2013年第7期92-94,共3页
Food Research and Development
基金
忻州师范学院科研资助项目(2009-54)
山西省留学回国人员科技活动择优资助项目(2010-97)
关键词
酸枣叶
多糖
抗氧化性
leaves of Zizyphus jujuba cv. spinosa
polysaccharides
antioxidant
