女贞子多糖的提取工艺及其体外抗氧化活性研究  

Ligustrum Lucidum Polysaccharide Extraction and its Antioxidant Activity in Vitro

作　　者：王阳阳[1] 冯清清[1] 武蓉[1] 孙欣[1] 乔瑶瑶[1] 王刚刚[1] 张海生[1] 付成程[1] 

机构地区：[1]陕西师范大学食品工程与营养科学学院,陕西西安710062

出　　处：《农产品加工（下）》2012年第9期41-44,共4页Farm Products Processing

基　　金：国家大学生创新性实验(101071820)

摘　　要：研究了女贞子水溶性多糖的提取工艺和体外抗氧化活性。结果表明,女贞子多糖的最佳提取工艺条件为:料液比1∶20,提取温度85℃,提取时间3 h,按该工艺条件进行提取,女贞子多糖的1次提取得率为3.18%;女贞子多糖对超氧阴离子(O2)-和对羟基自由基(.OH)具有较好的清除能力,清除能力随着浓度增加而增强,女贞子多糖具有一定的还原力,但其还原能力低于同浓度的VC。The extraction of Ligustrum lucidum polysaccharide and its antioxidant activity in vitro is studied and the results show that the optimum extraction technology of Ligustrum lucidum polysaccharide are the extraction of solid to liquid ratio 1 ： 20, extraction temperature of 85 ℃ , extraction time of 3 h. Ligustrum lucidum polysaccharide has better scavenging ability on superoxide anion （O5-） and hydroxyl radical （·OH） and has certain reducing power, which is low than the reducing power of VC at the same concentration.

关 键 词：女贞子 多糖 提取工艺 抗氧化活性 

分 类 号：R285.5[医药卫生—中药学] TQ461[医药卫生—中医学]