Effects of neutron radiation as cosmic radiation on food resources.

Autor:	Hatsuda, Machiko, Kawasaki, Hiroaki, Yamakura, Fumiyuki, Taketani, Atsushi, Takanashi, Takaoki, Wakabayashi, Yasuo, Otake, Yoshie, Kamata, Yayoi, Kurokawa, Chie, Ikeda, Keiichi, Shigenaga, Ayako, Iesaki, Takafumi, Nagaoka, Isao
Předmět:	SPACE environment ESSENTIAL amino acids NEUTRONS SPACE exploration SOFT errors ACCELERATOR mass spectrometry COSMIC rays
Zdroj:	Journal of Neutron Research; 2023, Vol. 25 Issue 1, p41-46, 6p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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