DOI QR코드

DOI QR Code

Luminescence Identification Characteristics for Irradiated Dried Fishery Products

조사처리한 건조수산품의 전처리 방법에 따른 Luminescence 판별 특성

  • Kim, Moon-Young (School of Food Science and Technology, Kyungpook National University) ;
  • Ahn, Jae-Jun (School of Food Science and Technology, Kyungpook National University) ;
  • Kim, Gui-Ran (School of Food Science and Technology, Kyungpook National University) ;
  • Kwak, Ji-Young (School of Food Science and Technology, Kyungpook National University) ;
  • Park, Kun-Sang (Ministry of Food and Drug Safety) ;
  • Lee, Kyung-Jin (Ministry of Food and Drug Safety) ;
  • Kwon, Joong-Ho (School of Food Science and Technology, Kyungpook National University)
  • Received : 2013.06.03
  • Accepted : 2013.07.03
  • Published : 2013.11.30

Abstract

Photostimulated luminescence (PSL) and thermoluminescence (TL) analyses were conducted for the detection of different gamma-irradiated dried fishes (mussel, squid, beka squid, mitra squid, plaice, and saury) at 0, 1, 5 and 10 kGy. For TL analysis, the contaminating silicate minerals were obtained by density separation or acid hydrolysis treatment. PSL determinations indicated that all the non-irradiated samples showed PSL photon counts/60 s (PCs) lower than 700 PCs (negative), but the irradiated mussel sample at 5 and 10 kGy were only possibility identified showing higher than 5000 PCs (positive). Irrespective of sample kinds and methods of mineral separation, all the non-irradiated samples showed TL glow curves in low-intensity with a maximum peak only after $250^{\circ}C$. However, all the irradiated samples produced TL glow curves in high intensity with a maximum peak particularly in the temperature range of 1$150{\sim}250^{\circ}C$. In conclusion, more distinguishable TL results [glow curve, TL ratio ($TL_1/TL_2$)] were obtained from the marker minerals separated by acid hydrolysis rather than density method.

건조수산품의 조사여부 확인을 위하여 PSL-TL 방법으로 분석하였다. 비 조사 시료에서는 모두 700보다 낮은 PCs를 나타내었고 조사된 홍합 5, 10 kGy에서만 5,000 이상의 PCs를 나타내었으나 조사된 오징어, 한치, 꼴뚜기, 홍합, 가자미, 꽁치는 비 조사값과 중간값을 나타내었다. TL분석에 이용되는 광물질을 얻기 위해 비중분리법(DS)과 산가수분해법(AH)을 이용하였으며, 그 결과 비 조사시료에서는 $250^{\circ}C$ 이상의 범위에서 낮은 intensity와 peak를 나타났으며 조사된 시료에서는 $150{\sim}250^{\circ}C$ 범위에서 높은 intensity와 peak를 나타내었다. 그러나 특히 AH 방법으로 미네랄을 분리하였을 때 TL ratio($TL_1/TL_2$)와 TL glow curve 결과가 보다 정확한 결과를 얻을 수 있었다. 따라서 PSL 방법은 홍합시료에서만 적용 가능하였으며, TL 방법은 실험에 사용된 모든 건조수산품에 적용 가능하였으나, AH 방법으로 처리한 판별결과가 DS 방법보다 더 정확한 결과를 나타내었다.

Keywords

References

  1. TRASS. 2013. Trade Statistics System. Available from http://trass.kctdi.or.kr/service/board/BoardServlet?cmd=Detail&sc.boardid=B00014&sc.row_id=187&sc.pageNo=1.
  2. NFQS. 2012. National Fisheries Products Quality Management Service. Available from http://www.nfqs.go.kr/2013/contents.asp?m=5&s=7&s2=1.
  3. KFDA. 2010. Food Code. Korea Food and Drug Adminstration, Seoul, Korea. p 5-28-1.
  4. Kwon JH. 2010. Safety and understanding of irradiated food. Korea Food Safety Research Institute, Seoul, Korea. p 33-42.
  5. Kwon JH, Byun MW, Cho HO. 1992. Development of food irradiation technology and consumer attitude toward irradiated food in Korea. Radioisotopes 41: 654-662. https://doi.org/10.3769/radioisotopes.41.12_654
  6. Loaharanu P, Kava R, Choi EH. 2003. Irradiation enhances food safety and quality. American Council on Science and Health. Available from http://www.acsh.org/opinion/irradiation-enhances-food-safety-and-quality/.
  7. Kume T, Furuta M, Todoriki S, Uenoyama N, Kobayashi Y. 2009. Status of food irradiation in the world. Radiat Phys Chem 78: 222-226. https://doi.org/10.1016/j.radphyschem.2008.09.009
  8. Couey M. 1989. Heat treatment for control of postharvest diseases and insect pests of fruits. Hortscience 24: 198-202.
  9. KFDA. 2010. Food Code. Korea Food and Drug Adminstration. Seoul, Korea. p 10-8-41.
  10. Chauhan SK, Kumar R, Nadanasabapathy S, Bawa AS. 2009. Detection methods for irradiated foods. Compr Rev Food Sci Food Saf 8: 4-16. https://doi.org/10.1111/j.1541-4337.2008.00063.x
  11. Kwon JH, Chung HW, Kim BK, Ahn JJ, Kim GR, Jo DJ, Ahn KA. 2011. Research and application of identification methods for irradiated foods. Safe Food 6: 11-27.
  12. Kyung HK, Ahn JJ, Akram K, Kwon JH. 2012. Thermoluminescence analyses of irradiated dried sea foods using different methods of mineral separation. Radiat Phys Chem 81: 1224-1226. https://doi.org/10.1016/j.radphyschem.2011.12.013
  13. Sekiguchi M, Nakagawa S, Yunoki S. 2009. Detection of irradiation history of seasoning mixes composed of dried fish and its extract - TL analysis and application considerations for mineral separation from foods. Bull Tokyo Metrop Ind Technol Res Int 4: 24-27.
  14. Sanderson DCW, Clark RJ. 1994. Pulsed photostimulated luminescence of alkali feldspars. Radiat Meas 23: 633-639. https://doi.org/10.1016/1350-4487(94)90112-0
  15. Sanderson DCW. 1996. Luminescence detection of irradiated foods. In Food Irradiation and the Chemist. Johnston DE, Stevenson MH, eds. Royal Society Chemistry, Cambridge, UK. p 25-56.
  16. EN 13751. 2002. Foodstuffs - Detection of irradiated food using photostimulated luminescence. European Committee of Standardization (CEN), Brussels, Belgium.
  17. Schreiber GA. 1996. Thermo-luminescence and photo-stimulated luminescence techniques to identify irradiated foods. In Detection Methods for Irradiated Foods. McMurray CH, Stewart EM, Gray R, Pearce J, eds. The Royal Society of Chemistry, Cambridge, UK. p 121-123.
  18. EN 1788. 2001. Foodstuffs - Thermoluminescence detection of irradiated food from which silicate minerals can be isolated. European Committee of Standardization (CEN), Brussels, Belgium.
  19. Cho JI, Lee JA, Lee SH, Hwang IG. 2010. Monitoring on the foods not approved for irradiation in Korea by PSL and TL detection method. J Fd Hyg Safe 25: 73-78.
  20. Ahn JJ, Kim GR, Akram K, Kim KS, Kwon JH. 2012. Effect of storage conditions on photostimulated luminescence of irradiated garlic and potatoes. Food Res Int 47:315-320. https://doi.org/10.1016/j.foodres.2011.07.031
  21. Ahn JJ, Akram K, Lee J, Kim KS, Kwon JH. 2012. Identification of a gamma-irradiated ingredient (garlic powder) in Korean barbecue sauce by thermoluminescence analysis before and after pasteurization. J Food Sci 77: C476-C480. https://doi.org/10.1111/j.1750-3841.2011.02614.x
  22. Ahn JJ, Akram K, Kwak JY, Jeong MS, Jang YD, Kwon JH. 2012. Radiation-induced thermoluminescence characteristics of feldspar following different heat and microwave treatments. J Lumin 132: 1964-1968. https://doi.org/10.1016/j.jlumin.2012.03.034
  23. Lee J, Kausar T, Kim BK, Kwon JH. 2008. Detection of $\gamma$-irradiated sesame seeds before and after roasting by analyzing photostimulated luminescence, thermoluminescence and electron spin resonance. J Agric Food Chem 56: 7184-7188. https://doi.org/10.1021/jf801416r
  24. Carmichael LA, Sanderson DCW. 2009. The use of acid hydrolysis for extracting minerals from shellfish for thermoluminescence detection of irradiation. Food Chem 68: 233-238.
  25. Ahn JJ, Akram K, Jeong MS, Kwak JY, Kwon JH. 2013. Identification of irradiated shellfish using well-characterized thermoluminescence properties of biogenic minerals present in the exoskeletons. Food Anal Methods 6: 1345-1352. https://doi.org/10.1007/s12161-012-9549-5
  26. Kwon JH, Jeong J, Chung HW. 2002. Thermoluminescence characteristics of minerals from irradiated potatoes of different origins of production. Radiat Phys Chem 63: 415-418. https://doi.org/10.1016/S0969-806X(01)00590-4
  27. Beneitez P, Correcher V, Millan A, Calderon T. 1994. Thermoluminescence analysis for testing the irradiation of spices. J Radioanal Nucl Chem 185: 401-410. https://doi.org/10.1007/BF02041311
  28. Kwon JH, Ahn JJ, Akram K, Son IJ, Lee SO. 2013. Characterization of radiation-induced luminescence properties and free radicals for the identification of different gamma-irradiated teas. Anal Bioanal Chem 405: 4225-4234. https://doi.org/10.1007/s00216-013-6849-6
  29. Schreiber GA, Hoffmann A, Helle N, Bogl KW. 1994. Methods for routine control of irradiated food: Determination of the irradiation status of shellfish by thermoluminescence analysis. Radiat Phys Chem 43: 533-544. https://doi.org/10.1016/0969-806X(94)90164-3