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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Seung Min (Food Safety Research Group, Korea Food Research Institute) Oh, Taeyoung (Food Safety Research Group, Korea Food Research Institute) Kim, Hyun Jung (Food Safety Research Group, Korea Food Research Institute)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제58권 제5호
발행연도
2015.1
수록면
745 - 750 (6page)

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Escherichia coli is generally considered as an indicator of antimicrobial resistance due to its genetic flexibility and adaptability. In the present study, antimicrobial resistance patterns, biofilm formation ability, and genotypes were assessed in E. coli isolates from fresh vegetable products in Korea. Among 120 isolates, 22 isolates (18.3 %) were resistant to one or more antimicrobials and 11 isolates were concurrently multidrug resistant against up to six antimicrobial agents. The highest resistance rate was detected on ampicillin (14.2 %), followed by piperacillin (11.7 %) and cefalotin (10.0 %). Rep-Polymerase chain reaction (PCR) revealed that five out of the 26 isolates were assigned to one cluster with a similarity >95 %, and strains carrying the same antimicrobial resistance profile had discrete rep-PCR patterns. A biofilm formation assay demonstrated that significantly larger amounts of biofilm were formed by an isolate, which showed no antimicrobial resistance. However, 60 % of the five intermediated biofilm-forming E. coli exhibited multidrug resistance against three or four antimicrobial agents. These results suggest that fresh vegetable products contaminated with E. coli are sources of antimicrobial resistance and other diverse virulence determinants. Therefore, the information provided in this study can be useful for improving food safety and public health.

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