Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Investigation of Hazards from Onions and Their Cultivation Areas to Establish a Good Agricultural Practices (GAP) Model

Good agricultural practices 모델 개발을 위한 양파 및 생산 환경에서의 위해요소 조사

  • Choi, Young-Dong (Division of Applied Life Science, Graduate School, Gyeongsang National University) ;
  • Lee, Chae-Won (Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Kim, Jeong-Sook (Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Chung, Duck-Hwa (Division of Applied Life Science, Graduate School, Gyeongsang National University) ;
  • Shim, Won-Bo (School of Physics and Chemistry, Gwangju Institute of Science and Technology)
  • 최영동 (경상대학교 응용생명과학부) ;
  • 이채원 (경상대학교 농업생명과학연구원) ;
  • 김정숙 (경상대학교 농업생명과학연구원) ;
  • 정덕화 (경상대학교 응용생명과학부) ;
  • 심원보 (광주과학기술원 물리화학부)
  • Received : 2013.08.16
  • Accepted : 2013.10.14
  • Published : 2013.12.31
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Abstract

The purpose of this study was to investigate the hazards from onions and their cultivation areas. A total of 32 samples were collected from onion farms and tested for biological (sanitary indicators, and pathogenic bacteria and fungi) and chemical (heavy metals and pesticide residues) hazards. Aerobic bacteria and coliforms were detected at a level of 0.2-7.1 log CFU/g (or mL) in the soil and agricultural water, 1.6-3.6 log CFU/g on surface of the onion, 0.0-6.0 log CFU/hand (or $cm^2$) on the workers' hands, clothes, and gloves, and 4.7 log $CFU/cm^2$ on the onion bags. Fungi were detected at a level of 0.0-5.0 log CFU/g (or mL, hand, or 100 $cm^2$) in all the samples. Staphylococcus aureus was detected at a level of 1.2 log CFU/hand on the workers' hands, the detection level of Bacillus cereus was up to 4.8 log CFU/g in the soil. However, Escherichia coli (and in particular strain O157:H7), Listeria monocytogenes, and Salmonella spp. were not detected. Although heavy metals were detected in the environment (in soil and agricultural water) and pesticide residues were detected in onion, the levels were lower than the regulation limits.

Keywords

References

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