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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

  • Received : 2013.08.16
  • Accepted : 2013.10.14
  • Published : 2013.12.31

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

good agricultural practices (GAP);onion;microbial contamination;pesticide residues;hazard

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  2. Monitoring of Microbial Contamination of Fruits and Vegetables on the Markets in Gyeongnam Area vol.49, pp.2, 2015, https://doi.org/10.14397/jals.2015.49.2.97
  3. Evaluation on Microbial Contamination in Red Pepper and Red Pepper Cultivated Soil in Korea vol.33, pp.5, 2018, https://doi.org/10.13103/JFHS.2018.33.5.347

Acknowledgement

Supported by : 농촌진흥청