title: Biocide tolerance in Salmonella from meats in Southern Spain.
abstract: Salmonella serovars sampled from meat products in Southern Spain (Andalucía) during the period 2002-2007 were analyzed in this study. The serovars most frequently detected (in order) were Typhimurium, Enteritidis, Derby, Anatum and Rissen. Isolates (n = 43) were tested for sensitivity to biocides, including the quaternary ammonium compounds benzalkonium chloride (BC), cetrimide (CT) and hexadecylpyridinium chloride (HDP), and the bisphenols triclosan (TC) and hexachlorophene (CF). The minimum inhibitory concentration (MIC) for the quaternary ammonium compounds was in the range of 25 to 50 mg/L for most isolates, although a few isolates required much higher concentrations, up to 250 mg/L. Bisphenols showed higher inhibitory activity, with a MIC of 2.5 to 25 mg/L. A few isolates showed a "non-wildtype" MIC for TC of up to 250 mg/L. These results indicate a low incidence of tolerance towards quaternary ammonium compounds and triclosan among Salmonella from meats and meat products.
authors.affiliation: Real Academia de Ciencias Veterinarias de Andalucía Oriental, Jaén, Spain.
authors.forename: Antonio Marin
authors.initials: AM
authors.lastname: Garrido
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: M Jose Grande
authors.initials: MJ
authors.lastname: Burgos
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: M Luisa Fernández
authors.initials: ML
authors.lastname: Márquez
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: M Carmen López
authors.initials: MC
authors.lastname: Aguayo
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: Rubén Pérez
authors.initials: RP
authors.lastname: Pulido
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: Julia Toledo
authors.initials: JT
authors.lastname: del Árbol
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Gálvez
authors.affiliation: Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain.
authors.forename: Rosario Lucas
authors.initials: RL
authors.lastname: López
mesh_terms: D004202:Disinfectants / Q000494:pharmacology*; D008460:Meat / Q000382:microbiology*; D008826:Microbial Sensitivity Tests; D012475:Salmonella / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification*; D065288:Serogroup; D013030:Spain
chemical_list: D004202:Disinfectants