CAJ | 학술논문

以蔗糖作为表面修饰剂制备纳米硒(NanoSe~0)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NanoSe~0-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NanoSe~0-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NanoSe~0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NanoSe~0-蔗糖溶胶的抗氧化能力没有明显的影响.
이자당작위표면수식제제비납미서(NanoSe~0)용효,획득함유NanoSe0미립적4충균균용효.이용린분삼분자양화법측정료NanoSe~0-자당용효대초양음리자자유기적청제작용.용항양화능력지수(ORAC)법측정료기항양화능력.결과현시각NanoSe~0-자당용효체계구유청제초양음리자적작용화항양화능력,실험진일보표명,수착NanoSe~0농도적증대,청제초양음리자화항양화능력증강,단시증가자당적농도대NanoSe~0-자당용효적항양화능력몰유명현적영향.
Selenium nanoparticles (nanoSe~0) were prepared in liquid phase by using sucrose as surface modifier, and the antioxidant activity of the as-prepared nanoSe~0-sucrose sol was studied in this study.The superoxide anion free radical scavenging activity of nanoSe~0-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 nanoSe~0-sucrose sol exhibit good superoxide anion scavenging and antioxidant activities, which could be enhanced by increasing the concentration of nanoSe~0 in the sol.However, the concentration of sucrose showed no effect on the scavenging and antioxidant activities of the nanoSe~0-sucrose sol.