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KMID : 0881720140290030228
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Journal of Food Hygiene and Safety
2014 Volume.29 No. 3 p.228 ~ p.233
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Monitoring of Antimicrobial Resistance and Genetic Analysis of Enterococcus spp. Isolated from Beef, Pork, Chicken and Fish in Korea
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Kim Yoon-Jeong
Oh Mi-Hyun
Kim Yong-Hoon
Kim Soon-Han
Park Kun-Sang
Joo In-Sun
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Abstract
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This study was performed to examine antimicrobial resistance of Enterococcus spp. strains from retail raw meat and fish products purchased in 2012. 43 Enterococcus spp. strains were isolated from a total of 207 samples (beef, pork, chicken, fish) with contamination rate of 20.8%. The isolated strains were identified as E. faecalis (22 strains), E. gallinarum, E. hirae (5 strains), E. avium (4 strains), E. faecium (3 strains), E. duram, E. casseliflavus (2 strains). Susceptibility to 10 antibiotics was tested, and the highest resistance was observed to tetracycline. And antimicrobial resistance rates were presented below 20% with most of the other antimicrobial agents. The isolated Enterococci from chicken showed higher resistance also to ciprofloxacin and erythromycin, not only to tetracycline, compared to the isolated Enterococci from beef, pork and fish. Sixteen isolates (37.2%) were sensitive to all antibiotics. Four isolates (9.3%) were resistant to 3 or more antibiotics. Vancomycin-resistant enterococci (VRE) was not identified. According to the results of genetic similarity pattern analysis via PFGE and rep-PCR, Enterococci strains showed different patterns from these collected in 2011. This indicates that there is no genetic similarity among all the strains.
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KEYWORD
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Enterococci, antimicrobial resistance, raw meat, fish, VRE
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