Lee DY, Ha JH, Lee MK, Cho YS. Antimicrobial susceptibility and serotyping of
Listeria monocytogenes isolated from ready-to-eat seafood and food processing environments in Korea.
Food Sci Biotechnol 2017;
26:287-291. [PMID:
30263540 DOI:
10.1007/s10068-017-0038-x]
[Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/12/2016] [Accepted: 11/02/2016] [Indexed: 11/25/2022] Open
Abstract
We examined antimicrobial susceptibility and serotypes of 33 L. monocytogenes isolates collected from ready-to-eat seafood and food processing environments. The isolated strains belonged to the 1/2b (73%), 4b (15%), and 1/2a (12%) serotypes; 11 of the obtained environmental swab samples belonged to the 1/2b serogroup. Antimicrobial resistance to benzyl penicillin (100%), clindamycin (100%), oxacillin (100%), ampicillin (97%), and tetracycline (18%) was detected, and 27/33 isolates (82%) showed resistance to four antibiotics and 6/33 (18%) were resistant to five. Total typing by automated repetitive sequence-based PCR revealed that the 33 isolates grouped into four distinct clusters with significantly correlated serotypes. These findings provide important information about the safety of ready-to-eat seafood and suggest that control measures should be adopted in order to mitigate the risk to humans posed by L. monocytogenes contaminated seafood.
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