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An Investigation of Microbial Contamination of Ready-to-Eat Products in Seoul, Korea

서울지역 유통판매 중인 즉석섭취.편의식품의 위해 미생물 오염도 조사

  • Received : 2010.08.08
  • Accepted : 2010.10.20
  • Published : 2011.02.28

Abstract

This study was carried out to examine microbiological contamination of ready-to-eat products and to propose a draft-standard and specifications according to food types. RTE foods were classified into 6 groups including fish products, meat products, breads, rices, salads, and fresh cut foods. The prevalence rates of pathogens detected from all samples were compared among food categories. The pH ranges for all RTE samples were between 3.8 and 7.3. Total aerobic cell counts ranged from 2 to 6 log CFU/g. Bread, rice and fresh-cut foods showed significantly higher counts, which ranged above 4.0 log CFU/g among the samples. Two kinds of rice were above the level of the KFDA Food Code standard for Eschrichia coli. The prevalence rate of E. coli in the rice was 6.7%. For Staphylococcus aureus, one fish product and one bread-product had levels above 2 log CFU/g. Bacillus cereus counts for all samples were below the level of 3 log CFU/g. Listeria monocytogenes was not detected in the samples. Therefore, these data suggest that the primary microbial hazard factors for ready-to-eat foods and risk assessments should focus on E. coli, S. aureus, and B. cereus.

Keywords

RTE foods;pathogens;prevalence;draft standard

References

  1. Jung SW, Song JH, Lee KG, Hong KW, Lee SJ. Inhibitory effects of temperature and vinegar against indicator organism in raw fishes for sushi ingredient during chilled storage. Food Eng. Prog. 10: 192-200 (2006)
  2. Kim JY, Kwon KI, Ha SY, Hong CH. Changed of contamination level of Listeria spp. during the processing environment in kimbaab restaurants. J. Food Hyg. Saf. 20: 232-236 (2005)
  3. Bahk GJ, Chun SJ, Park KH, Hong CH, Kim JW. Survey on the foodborne illness experience and awareness of food safety practice among korean consumers. J. Food Hyg. Saf. 18: 139-145 (2003)
  4. Choi JW, Park SY, Yeon JH, Lee MJ, Chung DH, Lee KH, Kim MG, Lee DH, Kim KS, Ha SD. Microbial contamination levels of fresh vegetables distributed in markets. J. Food Hyg. Saf. 20: 43-47 (2005)
  5. Korea Food and Drug Administration. Food borne outbreak for 2009. Available from: http://www.kfda.go.kr. Accessed Nov. 11, 2009.
  6. Jacxsens L, Luning PA, Van der Vorst JGAJ, Devlieghere F, Leemans R, Uyttendaele M. Simulation modelling and risk assessment as tools to identify the impact of climate change on microbiological food safety-The case study of fresh produce supply chain. Food Res Int. 43: 1925-1935 (2010) https://doi.org/10.1016/j.foodres.2009.07.009
  7. Keeratipibul S, Techaruwichit P, Chayurongkasumit Y. Contamination sources of coliforms in two different types of frozen ready to eat shrimps. Food Control 20: 289-293 (2009) https://doi.org/10.1016/j.foodcont.2008.05.015
  8. Yoon YJ, Kim DY, Lee CH, Yoon U, Koh YH, Kim SK, Kim JW. Isolation and identification of Vibrio species contaminated in imported frozen sea foods. J. Food Hyg. Saf. 15: 128-136 (2000)
  9. Anna ML, Aamir F. Hazard identification and exposure assessment for microbial food safety risk assessment. Int. J. Food Microbial. 58: 147-157 (2000) https://doi.org/10.1016/S0168-1605(00)00269-5
  10. Amit P, Theodore PL, Francisco D. Comparison of primary predictive models to study the growth of Listeria monocytogenes at low temperatures in liquid cultures and selection of fastest growing ribotypes in meat and turkey product slurries. Food Microbiol. 25: 460-470 (2008) https://doi.org/10.1016/j.fm.2008.01.009
  11. Moon BY. Microbial contamination analysis and hazard evaluation of ready to eat foods. MS thesis, Kyungwon University, Korea (2004)
  12. Park SY, Shoi JW, Yeon JH, Lee MJ, Oh DH, Hong CH, Baek GJ, Woo GJ, Park JS, Ha SD. Assessment of contamination level of food borne pathogenes in the main ingredients of kimbab during the preparing process. Korean J. Food Sci. Thechnol. 37: 122-128 (2005)
  13. Cho SK, Moon Bo Youn, Park JH. Microbial contamonation analysis to assess the safety of marketplace sushi. Korean J. Food Sci. Thechnol. 41: 334-338 (2009)
  14. Park SY, Choi JW, Yeon JH, Lee DH, Kim KS, Park KH, Ha SD. Assessment contamination levels of foodborne pathogenes isolated in major RTF foods marketed inn convenience stores. Korean J. Food Sci. Technol. 37: 274-278 (2005)
  15. Kang YS, Yoon SK, Jwa SH, Lee DH, Woo GJ, Park YS, Kim CM. Prevalence of Staphylococcus aureus in kimbab. Korean J. Food Hyg. Saf. 17: 31-35 (2002)
  16. Anderson A, Ronner U, Granum PE. What problems does the food industry have with the spore-forming pathogenes. Bacillus cereus and Clostridium perfrigenes. Int. J. Food Microbial. 28: 145-155 (1995) https://doi.org/10.1016/0168-1605(95)00053-4
  17. Kim SH, Kim JS, Choi JP, Park JH. Prevalence and frequency of food borne pathogenes on unprocessed agricultural and marine products. Korean J. Food Sci. Thechnol. 38: 594-598 (2006)
  18. Little CL, Taylor FC, Sagoo SK. Gillespie IA, Grant K, Mclauchlin J. Prevalence and level of Listeria monocytogenes and other Listeria species in retail pre-packaged mixed vegetable salads in the UK. Food Microbiol. 24: 711-717 (2007) https://doi.org/10.1016/j.fm.2007.03.009
  19. Wagner M, Auer B, Trittremmel C, Hein I, Schoder D. Survey on the Listeria contamination of ready-to-eat food products and household environments in Vienna. Austria. Zoonoses Public Hlth. 54: 16-22 (2007) https://doi.org/10.1111/j.1863-2378.2007.00982.x

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