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http://dx.doi.org/10.9721/KJFST.2017.49.3.252

Identification of irradiated soybean with different processing and origin  

Jung, Yoo-Kyung (New Hazardous Substances Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety)
Lee, Hye-Jin (New Hazardous Substances Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety)
Lee, Ji-Yeon (New Hazardous Substances Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety)
Choi, Jang-Duck (New Hazardous Substances Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety)
Kwon, Ki-Sung (New Hazardous Substances Team, Food Safety Evaluation Department, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety)
Publication Information
Korean Journal of Food Science and Technology / v.49, no.3, 2017 , pp. 252-257 More about this Journal
Abstract
In this study, the physicochemical properties of irradiated (gamma-ray and electron-beam) soybeans with different processing (dry and powder) and origins (Korea, China, and USA) were investigated and compared. The results of photostimulated luminescence (PSL) screening indicated that all non-irradiated soybeans showed photon counts (PCs) ${\leq}700$, while all irradiated soybeans showed positive values-gamma-ray 5,815-39,591 count/min; electron beam 5,791-60,055 count/min. The results of thermoluminescence (TL) analysis of all irradiated soybeans indicated that the $TL_1$ glow curves exhibited maximum peaks at 150-250. TL ratio of irradiated samples was ${\geq}0.1$; therefore, the clear identification of irradiated samples was guaranteed by analysis of the $TL_1$ curve shape and TL ratios. The results of electron spin resonance (ESR) signal of 3 irradiated and dried soybeans showed two side peaks mutually spaced at 6.0 mT (cellulose radical). Non-specific signal was detected for all irradiated soybean powders; hence, ESR analysis could not be performed.
Keywords
Food irradiation; soybean; processing; origin;
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Times Cited By KSCI : 3  (Citation Analysis)
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