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Microbiological Status and Guideline for Raw Chicken distributed in Korea

국내 유통 닭고기의 미생물 수준과 위생관리기준 적합성

  • Kim, Hye-Jin (Animal Products and Food Science Program, Kangwon National University) ;
  • Kim, Dongwook (Animal Products and Food Science Program, Kangwon National University) ;
  • Song, Sung Ok (Livestock Products Sanitation Division, Ministry of Korea Food and Drug Safety) ;
  • Goh, Yong-Gyun (Animal Science Program, Kangwon National University) ;
  • Jang, Aera (Animal Products and Food Science Program, Kangwon National University)
  • 김혜진 (강원대학교 축산식품과학전공) ;
  • 김동욱 (강원대학교 축산식품과학전공) ;
  • 송성옥 (식품의약품안전처 축산물위생안전과) ;
  • 고용균 (강원대학교 축산과학전공) ;
  • 장애라 (강원대학교 축산식품과학전공)
  • Received : 2016.10.27
  • Accepted : 2016.12.05
  • Published : 2016.12.31

Abstract

This study was conducted to investigate the microbiological sanitation status of raw chicken meat distributed in Korea, and potential changes in chicken breast quality during storage. The microbiological sanitation status analysis of raw chicken involved studying the results of microbiological monitoring for a 5-year period (2010~2014) by the Korean Food and Drug Administration. Furthermore, the microbiological status of raw chicken meat in meat packing centers and shops in Seoul/Gyeonggi, Kangwon, and Chungcheong Provinces was investigated from July to August 2015. The total bacterial counts of chicken meat in the packaging centers and meat shop of these Provinces were below the level specified in the Korean Meat Microbiological Guideline ($1{\times}10^7$ colony forming units [CFU]/g) and showed a similar microbiological sanitation status with results of the microbiological monitoring for the analyzed 5-year period. To evaluate the relationship between quality change and microbiological level of the meat distributed in Korea, the pH and microbiological and sensory quality characteristics of the chicken breast samples during storage at $4{\pm}2^{\circ}C$were determined. On day 4, the total bacterial count of the chicken breast was 6.76 log CFU/g, which was close to the official $1{\times}10^7CFU/g$ standard, the pH was 5.96, and the overall acceptability was reduced significantly (p<0.05). In particular, the aroma score was <5, indicating that the consumer panel expressed a negative perception even though the chicken contained a lower microbial level than that specified in the Korean microbiological guideline. These results suggest that the current Korean microbiological guideline for raw chicken meat may require a stricter level of up to $1{\times}10^6CFU/g$ to satisfy both meat safety standards and organoleptic quality for consumers.

본 연구는 식품의약품안전처로부터 지난 5년간 가금육(닭고기, 오리고기) 중 일반세균수 모니터링 검사 결과를 받아 분석하고, 현재 서울/경기, 충청도 및 강원도 지역 내 유통단계(식육포장처리장, 식육판매장)의 닭고기를 대상으로 미생물학적 오염도를 조사하였다. 또한, 닭가슴살의 저장기간의 따른 이화학적, 미생물학적, 관능적 특성의 변화를 분석을 통하여 적정 미생물 권장 기준에 대한 과학적인 근거를 제시하고자 하였다. 현재 국외에서는 유통단계 식육의 일반세균수에 대하여 $1{\times}10^5{\sim}10^6CFU/g$ 또는 $CFU/cm^2$ 이하로 권장 또는 규제하고 있다. 반면에, 우리나라의 권장기준치는 $1{\times}10^7CFU/g$ 이하로 국외와 비교하였을 때 완화된 권장기준치를 가지고 있다. 실제 지난 5년간 시행된 전국의 유통단계 가금육(닭고기, 오리고기) 중 일반세균수 모니터링하여 분석해본 결과, 대부분 $1{\times}10^6CFU/g$ 이하에 속하며, 권장기준 초과 건수가 1% 이내로 위생관리가 잘 이루어지고 있었다. 이를 바탕으로 현재 서울/경기, 강원도 및 충청도 지역의 유통단계 닭고기의 현장 모니터링을 실시하여 18개의 식육 판매점에서 채취된 54개의 시료 중 2건을 제외하고, 모두 국내 일반세균수 권장기준치인 $1{\times}10^7CFU/g$과 대장균수 권장 기준치인 $1{\times}10^4CFU/g$을 초과하지 않았다. 적정 미생물 권장기준에 과학적 근거 제시를 위하여 유통기간 중에 발생할 수 있는 품질적 변화를 예측하고자 닭가슴살을 저밀도 랩으로 포장하여 $4^{\circ}C$에서 저장하며, 저장기간별 이화학적, 미생물학적 및 관능학적 변화를 분석하였다. 그 결과, 현재 국내 유통단계 닭고기 중 일반세균수 권장기준치인 $1{\times}10^7CFU/g$에 근접하였을 때 pH는 5.96으로 pH 6에 가까웠고, 종합적 기호도가 5.11점으로 5점에 가까웠으며 특히 냄새가 5점 이하를 보여 이취로 인한 선호도의 저하를 나타냈다. 따라서 국내 유통 단계 식육에 대한 일반세균수 권장기준치가 국외에 비해 다소 완화된 기준이며, 심지어 권장기준치($1{\times}10^7CFU/g$ 이하) 이하에서도 관능패널들이 낮은 선호도를 보였던 점을 고려할 때, 안전성뿐만 아니라 소비자의 기호도를 동시에 만족시킬 수 있도록 유통단계 닭고기 중 일반세균수 권장기준을 $1{\times}10^6CFU/g$ 수준까지 낮추어 보다 현실적이고 적정한 권장기준에 대한 검토가 필요할 것으로 판단된다.

Keywords

References

  1. Brooke MH, Kaiser KK 1970 Three myosin adenosine triphosphate system: The nature of their pH liability and sulphydryl dependence. J Histochem Cytochem 18:670-672. https://doi.org/10.1177/18.9.670
  2. Chun HH, Kim JY 2010 Effect of UV-C irradiation on the inactivation of inoculated pathogens and quality of chicken breasts during storage. Food Control 21(3):276-280. https://doi.org/10.1016/j.foodcont.2009.06.006
  3. Dawson PL, Han IY, Voller LM, Clardy CB, Martinez RM, Acton JC 1995 Film oxygen transmission rate effects on ground chicken meat quality. Poultry Sci 74(8):1381-1387. https://doi.org/10.3382/ps.0741381
  4. Hong YH, Kim MK, Song KB 2008 Effects of aqueous chlorine dioxide treatment on microbial safety and quality of samgae chicken. Korean J Food Preserv 15(5):769-773.
  5. Huang J, Zong Q, Zhao F, Zhu J, Jiao XA 2016 Quantitative surveys of Salmonella and Campylobacter on retail raw chicken in Yangzhou, China. Food Control 59:68-73. https://doi.org/10.1016/j.foodcont.2015.05.009
  6. Jang A, Kim D, Kim HJ, Gil J 2015 Evaluation of microbiological guideline for meat. Ministry of Food Drug Safety.
  7. Jeon HC, Kim JE, Son JW, Chae HS, Jin KS, Oh JH, Shin BW, Lee JH 2011 Evaluation of the microbial contamination status and sanitation practice level in butcher's shops in Seoul. Korean J Vet Serv 34(4):409-416. https://doi.org/10.7853/kjvs.2011.34.4.409
  8. Kim JH, Kim KH, Song SW, Lee JY, Jung SC, Lee SW 2005 A survey on the microbial contamination levels for meats in distributional stages. QIA.
  9. Kim M 1997 Effect of lactic acid treatment on microorganisms and sensory characteristics in chickens. Korean J Soc Food Sci 13:293-298.
  10. Kim SH, Jayasena DD, Kim HJ, Jo C, Jung S 2014 Effect of adding Lactobacillus-fermented solution on characteristics of chicken breast meat. Korean J Poult Sci 41(2):127-133. https://doi.org/10.5536/KJPS.2014.41.2.127
  11. Kim SH, Na KB, Yang SM, You JY, Bae YJ, Choi YT 2003 Survey of bacterial contamination of chicken meat. Korean J Vet Serv 26(3): 221-225.
  12. Lee D, Hwang J, Yang H, Jang S, Baek E, Kim M, Ha N 2007 Assessment of bacterial contamination of raw meats sold in Korea. Environ Health Toxicoly 22(4):313-320.
  13. MAFRA (Ministry of Agriculture Food and Rural Affairs) 1999 Development of HACCP Application Manual.
  14. MFDS (Ministry of Food and Drug Safety) 2015 Processing Standards and Ingredient Specifications for Livestock Products.
  15. Nonghyup (Livestock Information Center) 2016. https://livestock.nonghyup.com/main/main.do accessed 27. Oct. 2016.
  16. Park CI, Kim YJ 2008 Effects of dietary mugwort powder on the VBN, TBARS, and fatty acid composition of chicken meat during refrigerated storage. Korean J Food Sci An 28(4):505-511. https://doi.org/10.5851/kosfa.2008.28.4.505
  17. Park WM, Choi WH, Yoo IJ, Kim YS, Kim WJ, Chung DH 1997 Effects of lactic acid bacteria isolated from fermented foods on the microbiological properties of fermented sausages. Food Sci Biotechnol 6(3):145-148.
  18. Pavelkova A, Kacaniova M, Horska E, Rovna K, Hleba L, Petrova J 2014 The effect of vacuum packaging, EDTA, oregano and thyme oils on the microbiological quality of chicken's breast. Anaerobe 29:128-133. https://doi.org/10.1016/j.anaerobe.2013.09.002
  19. Raeisi M, Tabaraei A, Hashemi M, Behnampour N 2016 Effect of sodium alginate coating incorporated with nisin, Cinnamomum zeylanicum, and rosemary essential oils on microbial quality of chicken meat and fate of Listeria monocytogenes during refrigeration. Int J Food Microbiol 238:139-145. https://doi.org/10.1016/j.ijfoodmicro.2016.08.042
  20. Sallam KI, Samejima K 2004 Effects of trisodium phosphate and sodium chloride dipping on the microbial quality and shelf life of refrigerated tray-packaged chicken breasts. Food Sci Biotechnol 13(4):425.
  21. Shin HY, Ku KJ, Park SK, Song KB 2006 Use of freshness indicator for determination of freshness and quality change of beef and pork during storage. Korean J Food Sci Technol 38(3):325-330.
  22. Verma SP, Sahoo J 2000 Improvement in the quality of ground chevon during refrigerated storage by tocopherol acetate preblending. Meat Sci 56(4):403-413. https://doi.org/10.1016/S0309-1740(00)00072-3
  23. Woo YK 2007 Survey on the status of microbial contamination of chicken meats collected from poultry processing plants in nationwide. Kor J Microbiol 43(3):186-192.
  24. Xiong Z, Sun DW, Zeng XA, Xie A 2014 Recent developments of hyperspectral imaging systems and their applications in detecting quality attributes of red meats: A review. J Food Eng 132:1-13. https://doi.org/10.1016/j.jfoodeng.2014.02.004
  25. Ye X, Iino K, Zhang S 2016 Monitoring of bacterial contamination on chicken meat surface using a novel narrow band spectral index derived from hyperspectral imagery data. Meat Sci 122:25-31. https://doi.org/10.1016/j.meatsci.2016.07.015

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