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Detection method for irradiated garlic using ESR

Ukai, Mitsuko*; Kameya, Hiromi*; Nakamura, Hideo*; Todoriki, Setsuko*; Kikuchi, Masahiro; Sakashita, Tetsuya; Funayama, Tomoo; Kobayashi, Yasuhiko

By Electron Spin Resonance (ESR) spectroscopy, we revealed free radicals in irradiated garlic. The representative ESR spectrum of garlic is composed of a singlet at the ${it g}$-value of 2.0. The signal is due to organic free radicals. Upon $$gamma$$-irradiation, new signals appeared. To analyze the irradiation effects, we proposed an ESR detection method of irradiated garlic.



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