[Application of electron spin resonance spectroscopy for the detection of irradiated crustaceans (prawn, shrimp, and crabs)].
Prawn, shrimp and crabs sold in Japan are mostly imported from overseas. Detection of irradiated crustaceans is very important for quality assurance. In this study, we used ESR to detect radiation-induced radicals after irradiation of prawn, shrimp and crabs of major species. No radiation-induced radicals were detected in prawn (black tiger prawn) or shrimp (white leg shrimp). Radiation-induced radicals due to hydroxyapatite were detected in the claws of snow crab, red king crab, and swimming crab. Our results indicate that ESR measurement on the claw parts of these three species of crab can be used to determine their irradiation history.
NARO, National Food Research Institute.
Hiromi
H
Kameya
Satoshi
S
Takatsuki
Rieko
R
Matsuda
Tomoaki
T
Tsutsumi
Setsuko
S
Todoriki
D000818:Animals; D003445:Crustacea / Q000737:chemistry*; D017886:Durapatite; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D005514:Food Irradiation; D005609:Free Radicals / Q000032:analysis*
D005609:Free Radicals; D017886:Durapatite