中子辐射作为宇宙辐射对食物资源的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-04-21 DOI:10.3233/jnr-230001

M. Hatsuda, Hiroaki Kawasaki, F. Yamakura, A. Taketani, Takaoki Takanashi, Y. Wakabayashi, Y. Otake, Y. Kamata, C. Kurokawa, Keiichi Ikeda, A. Shigenaga, T. Iesaki, Isao Nagaoka

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引用次数: 1

摘要

深空探测的主要挑战之一是宇宙射线对人体的影响和软误差，但同样重要的是它们对食物资源的影响。在这项研究中，我们重点研究了中子作为深空环境中的次级粒子，并研究了它们如何影响食物资源。用RIKEN加速器驱动的紧凑型中子源(RANS)对肉类样品进行快中子辐照。通过生化分析，阐述了宇宙射线对深空环境下食物的具体影响。电泳和Western blotting检测蛋白的氧化修饰和硝化修饰。结果表明，随着中子剂量的增加，蛋白质必需氨基酸色氨酸的硝化修饰有增加的趋势。

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Effects of neutron radiation as cosmic radiation on food resources

One of the major challenges in deep space exploration are effects of cosmic rays on human body and soft error, but equally important are their effects on food resources. In this study, we focused on neutrons as the secondary particle in the deep space environment and investigated how they affect food resources. Fast neutron was irradiated by the RIKEN Accelerator-driven compact Neutron Source (RANS) on meat sample. Biochemical analysis was conducted to present concrete effects of cosmic rays on food in deep space environment. Oxidative and nitrative modifications of proteins were detected by the electrophoresis and Western blotting. The result shows that nitrative modification of tryptophan, which is an essential amino acid in protein, tended to increase with increasing neutron dose.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.