| 摘要: |
| 对8月和10月采集的葎草全草、嫩头、叶和茎中多糖含量进行测定,并对各部位提取纯化的多糖进行体外抗氧化作用研究。结果表明,8月份嫩头中多糖含量最高,达到(42.897±2.996)mg/g; 浓度为5 mg/mL的各部位葎草多糖溶液,对Fenton反应生成的羟自由基具有较强的清除能力,达85.15%～98.52%; 对邻苯三酚自氧化法产生的超氧阴离子自由基也有较好的抑制能力,达57.15%～67.54%。葎草多糖对羟自由基和超氧阴离子自由基具有较高的清除能力。 |
| 关键词: 葎草 多糖 抗氧化性 |
| DOI： |
| 分类号:Q946.3 |
| Fund project: |
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| Content and antioxidant activity of polysaccharide extracted from Humulus scandens |
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WANG Xin-Feng1, YANG Fang1,2, GE Qun-Mei1, CHEN Shan-Shan1
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1.Institute of Resource Microorganism, Huaiyin Teachers'College, Huaian 22330, China;2.Key Laboratory of
Microbial Engineering, College of Life Sciences, Nanjing Normal University, Nanjing 210097, China
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| Abstract: |
| The contents of polysaccharide in the whole plant,apic bud,leave and stam of Humulus scandens in August and October,the scavenging effect of its purified polysaccharide on O</sup>-2·and ·OH were investigated.The results showed that the content of polysaccharide in apic bud in August was the highest,reached(42.897±2.996)mg/g. The concentration of 5 mg/mL polysaccharide of H.scanalens can scavenge hydroxyl free radical formed in Fenton raction,and the elimination rate reached 85.15%-98.52%. Oxygen free radicals of self-oxidantion of pyrogallol was well inhibited by the polysaccharide,and the elimination rate reached 57.15%-67.54%. The polysaccharide of H.scandens had antioxidant activities on O</sup>-2·and ·OH. |
| Key words: Humulus scandens Polysaccharide antioxidant activity |
