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http://dx.doi.org/10.5338/KJEA.2020.39.4.41

Microbiological Quality and Antibiotic Susceptibility of E. coli Isolated from Agricultural Water in Gyeonggi and Gangwon Provinces  

Hwang, Injun (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Park, Daesoo (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Chae, Hyobeen (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Kim, Eunsun (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Yoon, Jae-Hyun (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Rajalingam, Nagendran (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Choi, Songyi (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Kim, Se-Ri (Microbial Safety Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration)
Publication Information
Korean Journal of Environmental Agriculture / v.39, no.4, 2020 , pp. 343-351 More about this Journal
Abstract
BACKGROUND: Irrigation water is known to be one of the major sources of bacterial contamination in agricultural products. In addition, anti-microbial resistance (AMR) bacteria in food products possess serious threat to humans. This study was aimed at investigating the prevalence of foodborne bacteria in irrigation water and evaluating their anti-microbial susceptibility. METHODS AND RESULTS: Surface water (n = 66 sites) and groundwater (n = 40 sites) samples were collected from the Gyeongi and Gangwon provinces of South Korea during April, July, and October 2019. To evaluate the safety of water, fecal indicators (Escherichia coli) and foodborne pathogens (E. coli O157:H7, Salmonella spp., and Listeria monocytogenes) were examined. E. coli isolates from water were further tested for antimicrobial susceptibility using VITEK2 system. Overall, detection rate of foodborne pathogens in July was highest among three months. The prevalence of pathogenic E. coli (24%), Salmonella (3%), and L. monocytogenes (3%) was higher in surface water, while only one ground water site was contained with pathogenic E. coli (2.5%). Of the 343 E. coli isolates, 22.7% isolates were resistant to one or more antimicrobials (ampicillin (18.7%), trimethoprim-sulfamethoxazole (7.0%), and ciprofloxacin (6.7%)). CONCLUSION: To enhance the safety of agricultural products, it is necessary to frequently monitor the microbial quality of water.
Keywords
Antimicrobial Resistance; Groundwater; Human Pathogenic Bacteria; Microbiological Quality; Surface Water;
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Times Cited By KSCI : 2  (Citation Analysis)
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