| 桑叶粗提物清除羟自由基能力的比较 |
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| 引用本文： | 杨世园,汪志平,缪云根,朱祥瑞.桑叶粗提物清除羟自由基能力的比较[J].蚕业科学,2005,31(3):351-353. |
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| 作者姓名： | 杨世园 汪志平 缪云根 朱祥瑞 |
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| 作者单位： | 浙江大学物理系,杭州,310027;浙江大学原子核农业研究所,杭州,310029;浙江大学动物科学学院,杭州,310029 |
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| 摘 要： | 实验采用物理化学方法(Phen-CuSO4-Vit.c-H2O2反应体系)测定和比较了桑叶提取物、银杏叶提取物和螺旋藻粗多糖清除羟自由基的能力,并测定了3种提取物中总黄酮、多酚类和糖类成分含量。结果发现,在清除羟自由基能力和延迟羟自由基攻击高峰出现的作用方面,桑叶提取物强于螺旋藻粗多糖,而比银杏叶提取物弱。提取物中总黄酮和多酚类物质的含量与清除羟自由基能力有密切关系。
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| 关 键 词： | 桑叶提取物 羟自由基 抗氧化 |
| 文章编号： | 0257-4799(2005)03-0351-03 |
| 修稿时间： | 2005年4月28日 |
Study on Hydroxyl Radical Scavenging Activity of Mulberry Leaf Extracts |
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| YANG Shiyuan,WANG Zhiping,MIAO Yungen,ZHU Xiangrui.Study on Hydroxyl Radical Scavenging Activity of Mulberry Leaf Extracts[J].Acta Sericologica Sinica,2005,31(3):351-353. |
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| Authors: | YANG Shiyuan WANG Zhiping MIAO Yungen ZHU Xiangrui |
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| Abstract: | The hydroxyl radical scavenging activity of mulberry leaf extracts was evaluated by comparing with ginkgo leaf extracts and crude polysaccharides from spirulina platensis, both of whose anti-oxidative activity has been well known, by physical chemistry method (Phen-CuSO_4-Vit.c-H_2O_2 reaction system). In the meanwhile, flavonoids content, polyphenols content, saccharide content in the extracts were measured. The results demonstrated that mulberry leaf extracts was more effective than crude polysaccharides, less than ginkgo leaf extracts on scavenging hydroxyl radical and on delaying the appearance of chemiluminescence peak. There are close connection between the hydroxyl radical scavenging activity and flavonoids content or polyphenols content. |
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| Keywords: | Mulberry leaf extracts Hydroxyl radical Anti-oxidation |
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