REAL

Antibiotic susceptibility and ability to form biofilm of Listeria monocytogenes strains isolated from frozen vegetables

Skowron, K. and Grudlewska, K. and Lewandowski, D. and Gajewski, P. and Reśliński, A. and Gospodarek-Komkowska, E. (2019) Antibiotic susceptibility and ability to form biofilm of Listeria monocytogenes strains isolated from frozen vegetables. Acta Alimentaria, 48 (1). pp. 65-75. ISSN 0139-3006 (print); 1588-2535 (online)

[img]
Preview
Text
066.2019.48.1.8.pdf

Download (516kB) | Preview

Abstract

L. monocytogenes poses a serious threat to public health, since most cases of listeriosis are connected with eating contaminated food. L. monocytogenes is often detected both in fresh and frozen vegetables. The aim of this study was to evaluate the antibiotic susceptibility and ability to form biofilm of L. monocytogenes strains isolated from frozen vegetable mixtures in Poland. Ninetynine genetically different strains were found among 100 isolates of L. monocytogenes. Among the 99 strains, 80 (80.8%) were susceptible to all tested antibiotics. Nineteen (19.2%) strains were resistant to one or more antibiotics. From this group of L. monocytogenes strains, most strains were resistant to erythromycin (16; 16,1%), penicillin (15; 15.1%), meropenem (12; 12.1%), cotrimoxazole (12; 12.1%), and ampicillin (3; 3.1%). According to the obtained results, differences in intensity of biofilm, both between those isolated in successive years and in the particular year, were observed. Performed analysis showed statistically insignificant faint negative correlation (r=–0.088) between the number of antibiotics to which strains were resistant and the intensity of biofilm formation by them. Food contamination with L. monocytogenes poses a threat to consumers, therefore it is necessary to monitor their antibiotic susceptibility, ability to form biofilm, and genetic similarity, in order to evaluate the strains persistence time in plant.

Item Type: Article
Additional Information: MTA KFB támogatási szerződés alapján archiválva
Subjects: Q Science / természettudomány > QD Chemistry / kémia > QD01 Analytical chemistry / analitikai kémia
Depositing User: Violetta Baliga
Date Deposited: 15 Aug 2019 07:51
Last Modified: 31 Mar 2020 23:25
URI: http://real.mtak.hu/id/eprint/95721

Actions (login required)

Edit Item Edit Item