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http://dx.doi.org/10.9721/KJFST.2013.45.6.785

Investigation of Hazards from Onions and Their Cultivation Areas to Establish a Good Agricultural Practices (GAP) Model  

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)
Publication Information
Korean Journal of Food Science and Technology / v.45, no.6, 2013 , pp. 785-790 More about this Journal
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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Times Cited By KSCI : 15  (Citation Analysis)
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