| 纳米硒-蔗糖溶胶的抗氧化作用 |
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| 引用本文： | 周艳晖,黄嘉茵,白燕,郑文杰,李志辉.纳米硒-蔗糖溶胶的抗氧化作用[J].暨南大学学报,2010,31(1). |
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| 作者姓名： | 周艳晖 黄嘉茵 白燕 郑文杰 李志辉 |
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| 作者单位： | 暨南大学化学系,广东,广州,510632 |
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| 基金项目： | 广东省科技计划项目(2008A030201020) |
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| 摘 要： | 以蔗糖作为表面修饰剂制备纳米硒(NanoSe0)溶胶,获得含有NanoSe0微粒的4种均匀溶胶.利用邻苯三酚自氧化法测定了NanoSe0-蔗糖溶胶对超氧阴离子自由基的清除作用.用抗氧化能力指数(ORAC)法测定了其抗氧化能力.结果显示各NanoSe0-蔗糖溶胶体系具有清除超氧阴离子的作用和抗氧化能力,实验进一步表明,随着NanoSe0浓度的增大,清除超氧阴离子和抗氧化能力增强,但是增加蔗糖的浓度对NanoSe0-蔗糖溶胶的抗氧化能力没有明显的影响.
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| 关 键 词： | 纳米硒 抗氧化能力指数（ORAC） 超氧阴离子 蔗糖 |
Antioxidant activity of selenium nanoparticle-sucrose sol |
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| ZHOU Yan-hui,HUANG Jia-yin,BAI Yan,ZHENG Wen-jie,LI Zhi-hui.Antioxidant activity of selenium nanoparticle-sucrose sol[J].Journal of Jinan University(Natural Science & Medicine Edition),2010,31(1). |
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| Authors: | ZHOU Yan-hui HUANG Jia-yin BAI Yan ZHENG Wen-jie LI Zhi-hui |
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| Institution: | Depantment of Chemistry;Jinan University;Guangzhou 510632;China |
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| Abstract: | Selenium nanoparticles(nanoSe0) were prepared in liquid phase by using sucrose as surface modifier,and the antioxidant activity of the as-prepared nanoSe0-sucrose sol was studied in this study.The superoxide anion free radical scavenging activity of nanoSe0-sucrose sol was evaluated by pyrogallol autoxidation assay.Oxygen radical absorbance capacity(ORAC) assay was also used to evaluate the antioxidant activity.The results showed that nanoSe0-sucrose sol exhibit good superoxide anion scavenging and antioxid... |
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| Keywords: | selenium nanoparticles oxygen radical absorbance capacity (ORAC) superoxide anion free radical sucrose |
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