Correlations among Resistances to Different Antimicrobial Compounds in Salmonella Strains from Hen Eggshells
| Autor: | Maria Luisa Fernández Márquez, María José Grande Burgos, Rubén Pérez Pulido, Rosario Lucas López, Antonio Gálvez |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Salmonella 030106 microbiology Microbial Sensitivity Tests medicine.disease_cause Microbiology Egg Shell 03 medical and health sciences chemistry.chemical_compound Antibiotic resistance Trisodium phosphate Drug Resistance Bacterial medicine Animals Carvacrol Food science Thymol Biofilm Tetracycline Antimicrobial Anti-Bacterial Agents 030104 developmental biology chemistry Female Chickens Polymyxin B Disinfectants Food Science medicine.drug |
| Zdroj: | Journal of Food Protection. 81:178-185 |
| ISSN: | 0362-028X |
| Popis: | Persistence of antibiotic-resistant Salmonella in the food chain may depend on strain tolerance to other antimicrobials and also on biofilm formation capacity. Yet, there is limited information on sensitivity of antibiotic-resistant Salmonella to other antimicrobials, such as phenolic compounds, chemical preservatives, or antimicrobial peptides. This study aimed at correlating antimicrobial resistance and biofilm formation capacity in antibiotic-resistant, biocide-tolerant Salmonella strains from hen eggshells. A collection of 21 strains previously selected according to their antibiotic resistance and biocide tolerance phenotypes were used for the present study. Strains were inspected for their biofilm formation capacity and for their sensitivity to (i) phenolic compounds (carvacrol, thymol), (ii) chemical preservatives (sodium lactate, trisodium phosphate), and (iii) cationic antimicrobials (polymyxin B, lysozyme-EDTA). Biofilm formation capacity was not correlated with antimicrobial resistances of the planktonic Salmonella. Polymyxin B and the lysozyme-EDTA combinations showed significant ( P < 0.05) positive correlations to each other and to sodium lactate. Significant ( P < 0.05) positive correlations were also observed for benzalkonium chloride and cetrimide with carvacrol, thymol, and trisodium phosphate, or between hexadecylpyridinium chloride and carvacrol. Antibiotic resistance also correlated positively with a higher tolerance to other antimicrobials (cefotaxime, ceftazidime, and ciprofloxacin with carvacrol, thymol, and trisodium phosphate; netilmicin with thymol and trisodium phosphate; tetracycline with carvacrol and thymol). These results must be taken into consideration to ensure a proper use of antimicrobials in the poultry industry, at concentrations that do not allow coselection of biocide-tolerant, antibiotic-resistant Salmonella. |
| Databáze: | OpenAIRE |
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