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Monitoring of Biosafety of Agricultural Products from Urban Community Gardens and Roof Gardens in Korea

도시텃밭과 옥상정원에서 재배되는 농산물의 생물학적 안전성 조사

  • Kim, Jin-Won (Department of Environmental Horticulture, The University of Seoul) ;
  • Yu, Yong-Man (Department of Applied Biology, Chungnam National University) ;
  • Na, Won-Seok (Department of Environmental Horticulture, The University of Seoul) ;
  • Baljii, Enkhjargar (Department of Environmental Horticulture, The University of Seoul) ;
  • Choi, In-Wook (Department of Infection Biology, Chungnam National University) ;
  • Youn, Young-Nam (Department of Applied Biology, Chungnam National University) ;
  • Lee, Young-Ha (Department of Infection Biology, Chungnam National University)
  • 김진원 (서울시립대학교 환경원예학과) ;
  • 유용만 (충남대학교 응용생물학과) ;
  • 나원석 (서울시립대학교 환경원예학과) ;
  • ;
  • 최인욱 (충남대학교 감염생물학교실) ;
  • 윤영남 (충남대학교 응용생물학과) ;
  • 이영하 (충남대학교 감염생물학교실)
  • Received : 2013.08.13
  • Accepted : 2014.02.05
  • Published : 2014.06.30

Abstract

Urban farming supplies emotional stability and fresh vegetables to participating persons, however, no information regarding the biosafety of agricultural products from urban farming is available. Here, we collected 260 samples of Chinese cabbages and lettuce from 4 urban community gardens and 6 roof gardens in Seoul from September through October 2012, and monitored the microbiological and parasitological contamination quantitatively and/or qualitatively. The mean counts of total aerobic bacteria and coliforms were $6.1{\pm}0.8\;log\;CFU{\cdot}g^{-1}$ ( range, $5.4{\pm}0.6{\sim}7.1{\pm}0.8\;log\;CFU{\cdot}g^{-1}$) and $4.0{\pm}0.7\;log\;CFU{\cdot}g^{-1}$ (range, $2.3{\pm}0.6{\sim}6.1{\pm}0.9\;log\;CFU{\cdot}g^{-1}$), respectively. Coliforms were detected on 59.6% among 260 vegetable samples. There were no significant differences in the contamination levels of total aerobic bacteria and coliforms between the Chinese cabbages and lettuce, whereas both levels of vegetables from urban community gardens were higher than those of roof gardens (p > 0.05). Escherichia coli was isolated at 3.1% among whole vegetables, and contamination level was $1.5{\pm}0.2\;log\;CFU{\cdot}g^{-1}$. Among foodborne pathogens, Staphylococcus aureus was detected in 1.5%, however, Salmonella spp., Listeria monocytogenes and E. coli O157:H7 were not detected on any of the vegetable samples. We also found undefined parasite eggs from two samples of Chinese cabbages (0.8% of total vegetables we tested). From these study, we found the presence of microbial contamination of agricultural products from urban farming, thus we need further concern to improve the biosafety during production of agricultural products.

도시농업은 정서적 안정뿐만 아니라 수확의 즐거움을 제공하는 곳으로, 생산되는 농산물의 안전성 확보가 요구되나 이에 대한 자료가 없다. 본 과제에서는 2012년 9월부터 10월 사이에 서울시내 도시텃밭 4곳과 옥상농원 6곳에서 채취한 배추 및 상추 260 표본을 대상으로 세균 및 기생충 오염수준을 정량적으로 혹은 정성적으로 평가하였다. 조사한 농산물에 부착되어 있는 총호기성균과 대장균군의 수는 각각 $6.1{\pm}0.8log\;CFU{\cdot}g^{-1}$(범위, $5.4{\pm}0.6-7.1{\pm}0.8log\;CFU{\cdot}g^{-1}$) 및 $4.0{\pm}0.7lo\;CFU{\cdot}g^{-1}$(범위, $2.3{\pm}0.6-6.1{\pm}0.9log\;CFU{\cdot}g^{-1}$)이었다. 대장균군은 전체 표본의 59.6%에서 발견되었다. 농산물별로 분석 시 배추와 상추의 총호기성균 및 대장균군 오염 수준은 유의한 차이를 보이지 않았으나, 농산물 재배 장소별로 분석 시 옥상농원에 비하여 도시텃밭에서 더 많이 검출되었다(p > 0.05). 대장균은 전체 야채의 3.1%에서 발견되었으며, 오염수준은 $1.5{\pm}0.2log\;CFU{\cdot}g^{-1}$이었다. 식중독 유발 세균 중 황색포도상구균은 조사한 농산물의 1.5%에서 검출되었으나, 그 외의 Salmonella spp., Listeria monocytogenes, E. coli 0157:H7은 모든 표본에서 검출되지 않았다. 또한 2개의 배추 표본(전체 농산물의 0.8%)에서 미확인된 기생충란이 발견되었다. 이상의 결과로 보아, 서울시내 도시농업으로 생산되는 농산물에서 세균학적 오염이 있는 것이 확인되어, 재배 과정 중 생물학적 오염을 줄이기 위한 노력이 요구된다.

Keywords

References

  1. Al-Binali, A.M., C.S. Bello, K. El-Shewy, and S.E. Abdulla. 2006. The prevalence of parasites in commonly used leafy vegetables in South Western, Saudi Arabia. Saudi Med. J. 27:613-616.
  2. Berger, C.N., S.V. Sodha, R.K. Shaw, P.M. Griffin, D. Pink, P. Hand, and G. Frankel. 2010. Fresh fruit and vegetables as vehicles for the transmission of human pathogens. Environ. Microbiol. 12:2385-2397. https://doi.org/10.1111/j.1462-2920.2010.02297.x
  3. Carney, P.A., J.L. Hamada, R. Rdesinski, L. Sprager, K.R. Nichols, B.Y. Liu, J. Pelayo, M.A. Sanchez, and J. Shannon. 2012. Impact of a community gardening project on vegetable intake, food security and family relationships: A community-based participatory research study. J. Commun. Health 37:874-871. https://doi.org/10.1007/s10900-011-9522-z
  4. Centers for Disease Control and Prevention (CDC). 2011. Surveillance for foodborne disease outbreaks-United States. MMWR Morb. Mortal. Wkly. Rep. 60:1197-1202.
  5. Choi, J.W., S.Y. Park, J.H. Yeon, M.J. Lee, D.H. Chung, K.H. Lee, M.G. Kim, D.H. Lee, K.S. Kim, and S.D. Ha. 2005. Microbial contamination levels of fresh vegetables distributed in markets. J. Food Hyg. Safety 20:43-47.
  6. Forsythe, S.J. 2010. Microbiology of safe food. 2nd ed. Wiley- Blackwell, Oxford, United Kingdom.
  7. Hong, C.K., Y.H. Seo, C.M. Choi, I.S. Hwang, and M.S. Kim. 2012. Microbial quality of fresh vegetables and fruits in Seoul, Korea. J. Food Hyg. Safety 27:24-29. https://doi.org/10.13103/JFHS.2012.27.1.024
  8. Jung, S.H., M.J. Hur, J.H. Ju, K.A. Kim, S.S. Oh, J.M. Go, Y.H. Kim, and J.S. Im. 2006. Microbiological evaluation of raw vegetables. J. Food Hyg. Safety 21:250-257
  9. Jung, J.K., M.J. Kim, H.Y. Kee, M.H. Choi, J.Y. Seo, S.H. Kim, J.T. Park, M.G. Kim, and E. Kim 2008. Prevalence of food poisoning bacteria on hands in various age groups J. Food Hyg. Safety 23:40-50.
  10. Kang, K.N., J.K. Lee, K.H. Kim, and M.H. Lee. 2007. Revitalization planning of urban farming based on vegetable gardens. J. Inst. Construct. Technol. 26:167-176.
  11. Kim, S.R., J.Y. Lee, S.H. Lee, W.I. Kim, K.H. Park, H.J. Yun, B.S. Kim, D.H. Chung, J.C. Yun, and K.Y. Ryu. 2011. Evaluation of microbiological safety of lettuce and cultivation area. J. Food Hyg. Safety 26:289-295.
  12. Kim, W.I., H.M. Jung, S.R. Kim, K.H. Park, B.S. Kim, J.C. Yun, and K.Y. Ryu. 2012. Investigation of microbial contamination levels of leafy greens and its distributing conditions at different time-focused on perilla lead and lettuce. J. Food Hyg. Safety 27:277-284. https://doi.org/10.13103/JFHS.2012.27.3.277
  13. Korea Food & Drug Administration (KFDA). 2011. Food & drug statistical yearbook. http://www.mfds.go.kr/
  14. Magkos, F., F. Arvaniti, and A. Zampelas. 2006. Organic food: Buying more safety or just peace of mind? A critical review of the literature. Crit. Rev. Food Sci. Nutr. 46:23-56. https://doi.org/10.1080/10408690490911846
  15. Ministry of Land, Infrastructure and Transport (MOLIT). 2012. Urban planning statistics. http://www.molit.go.kr/
  16. Robertson, L.J. and B. Gjerde. 2001. Occurrence of parasites on fruits and vegetables in Norway. J. Food Prot. 64:1793-1798.
  17. Food and Drug Administration (U.S. FDA). 2012. Foodborne pathogenic microorganial and natural toxins handbook. http://www.cfsan.fda.gov/cgi-bin/
  18. Yu, Y.M., Y.N. Youn, Q.J. Hua, G.H. Cha, and Y.H. Lee. 2009. Biological hazard analysis of paprikas, strawberries and tomatoes in the markets. J. Food Hyg. Safety 24:174-181.

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