| 含纤维素辐照食品的ESR法研究 |
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| 引用本文： | 万小娟,王佳,郑建飞,窦大营,徐刚,焦正,吴明红,丁国际.含纤维素辐照食品的ESR法研究[J].核技术,2008,31(8). |
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| 作者姓名： | 万小娟 王佳 郑建飞 窦大营 徐刚 焦正 吴明红 丁国际 |
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| 作者单位： | 1. 上海大学射线应用研究所,上海,201800
2. 上海大学环境与化学工程学院,上海,200072 |
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| 摘 要： | 60Co发出的γ射线于0,0.5,1.0,3.0,5.0,10.0kGy剂量范围对干燥的红辣椒粉、花生和提取出的草莓籽进行了辐照处理,用电子自旋共振(Electron spin resonance,ESR)来分析研究信号强度与辐照剂量的关系以及相关性R2.结果表明,三种样品的ESR信号与剂量正相关,其中草莓的ESR信号随剂量增长最慢,红辣椒粉的计算最为精确,花生的次之.含纤维素辐照食品的剂量与ESR信号关系清晰,可作为建立ESR方法检测辐照食品的方法.
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| 关 键 词： | 电子自旋共振 辐照剂量 自由基 剂量效应曲线 |
Study on identification of irradiated food containing cellulose by ESR |
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| WAN Xiaojuan,WANG Jia,ZHENG Jianfei,DOU Daying,XU Gang,JIAO Zheng,WU Minghong,DING Guoji.Study on identification of irradiated food containing cellulose by ESR[J].Nuclear Techniques,2008,31(8). |
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| Authors: | WAN Xiaojuan WANG Jia ZHENG Jianfei DOU Daying XU Gang JIAO Zheng WU Minghong DING Guoji |
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| Affiliation: | WAN Xiaojuan1 WANG Jia2 ZHENG Jianfei2 DOU Daying1 XU Gang1 JIAO Zheng1 WU Minghong2 DING Guoji2 1 (Applied Radiation Institute of Shanghai University,Shanghai 201800,China) 2 (School of Environmental , Chemical Engineering of Shanghai University,Shanghai 200072,China) |
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| Abstract: | The fast development and application of food irradiation technology signify the necessity and urgency to research on effective detection method for irradiated food. In this paper, we report a preliminary study in this area with dried chili powder, peanuts and strawberry seeds. The food samples were irradiated to 0.5, 1.0, 3.0, 5.0 and 10.0 kGy by 60Co gamma rays. The relation between ESR intensity and irradiation dose, and correlation R2, were studied. The results showed that the ESR signal intensity is pos... |
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| Keywords: | Electron spin resonance Irradiation dose Free radical Dose-effect curve |
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