Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Application of Photostimulated Luminescence to Detection of Irradiated Foods

광자극발광기의 방사선 조사 식품 검지에의 활용

  • Hwang, Keum-Taek (Department of Food Science and Human Nutrition, Chonbuk National University) ;
  • Uhm, Tai-Boong (Faculty of Biological Sciences and Institute for Molecular Biology and Genetics, Chonbuk National University) ;
  • Wagner, Ute (German Federal Institute for Health Protection of Consumers and Veterinary Medicine) ;
  • Schreiber, Georg A. (German Federal Institute for Health Protection of Consumers and Veterinary Medicine)
  • 황금택 (전북대학교 식품영양학과) ;
  • 엄태붕 (전북대학교 생물과학부 및 유전공학연구소) ;
  • ;
  • Published : 1998.06.01
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Abstract

It was determined whether photostimulated luminescence (PSL) is applicable to the detection of post-irradiation of foods by measuring PSL photon counts for unirradiated and irradiated pepper powder, dried herbs, fresh shrimp, potato, soybean, dried fig, chestnut, dried squid, and dried cod. The samples were irradiated with $^{60}Co\;{\gamma}-ray$ source and PSL photon counts were measured for them. The photon counts of unirradiated samples were lower than 2,000 for potatoes and less than 1,000 for the others. The photon counts of the irradiated samples except dried figs (0.5 kGy), chestnuts (0.2 kGy), and dried squid (0.5 kGy) were higher than 1,000, and the photon counts increased with dose. Thus, PSL might be applied to the primary detection of irradiated foods.

광자극발광기(PSL)를 식품의 방사선조사 여부 판별에 적용 가능한지를 검토하기 위하여, 고춧가루, 건조혼합향신료, 새우, 감자, 콩나물콩, 건조 무화과, 생밤, 건조오징어, 건조대구포 등을 $^{60}Co\;{\gamma}-$선을 사용하여 방사선을 조사하고 PSL photon counts를 측정하였다. 비조사 시료의 photon counts는 감자의 경우는 2,000 이하, 그 외의 시료의 경우는 모두 1,000 이하를 나타냈다. 조사 시료는 건조 무화과(0.5 kGy), 생밤(0.2 kGy), 건조오징어(0.5 kGy)를 제외하고는 1,000 이상을 나타냈으며, 조사량에 따라 photon counts가 대부분 증가하였다. 따라서 PSL은 식품을 방사선 조사했는지 여부를 일차 판별하는 데 사용할 수 있음이 확인되었다.

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