Relaxation Behaviors of Free Radicals From γ-Irradiated Black Pepper Using Pulsed EPR Spectroscopy

被引：5
|
作者：
Kameya, Hiromi [1 ]
Kikuchi, Masahiro [2 ]
Hara, Hideyuki [3 ]
Furuta, Masakazu [5 ]
Todoriki, Setsuko [1 ]
Kobayashi, Yasuhiko [2 ]
Ukai, Mitsuko [1 ,4 ]
Shimoyama, Yuhei [2 ]
机构：
[1] Natl Food Res Inst, Tsukuba, Ibaraki 3058642, Japan
[2] Japan Atom Energy Agcy, Takasaki, Gunma 3701292, Japan
[3] Bruker BioSpin KK, Kanagawa Ku, Yokohama, Kanagawa 2210022, Japan
[4] Hokkaido Univ, Hakodate, Hokkaido 0408567, Japan
[5] Osaka Prefecture Univ, Naka Ku, Sakai, Osaka 5998531, Japan
来源：
APPLIED MAGNETIC RESONANCE | 2012年 / 42卷 / 02期
关键词：
ELECTRON-SPIN-RESONANCE; PARAMAGNETIC-RESONANCE; ESEEM SPECTROSCOPY; SESAME SEEDS; WHEAT-FLOUR; THERMOLUMINESCENCE; IDENTIFICATION; FRUITS; ESR;
D O I：
10.1007/s00723-011-0305-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Using electron paramagnetic resonance (EPR) spectroscopy, we revealed the relaxation behaviors of free radicals in gamma-irradiated black pepper. Upon gamma-irradiation, typical doublet peaks were detected. Relaxation times (T-1 and T-2) were observed using pulsed EPR. We found that T-1 and T-2 values varied with the gamma-irradiation dose levels and these values showed a dependence on the dose level of the c-irradiation treatment.
引用
收藏
页码：153 / 159
页数：7
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