Biocide tolerance in Salmonella from meats in Southern Spain

Brazilian Journal of Microbiology

Antonio Marin Garrido¹  Mª Jose Grande Burgos¹  Mª Luisa Fernández Márquez¹  Mª Carmen López Aguayo¹  Rubén Pérez Pulido¹  Julia Toledo Del Árbol¹  Antonio Gálvez¹  Rosario Lucas López¹ 

关键词: Salmonella;    biocides;    serovars;    meat;    chorizo;   

DOI  :  10.1590/S1517-838246420140396

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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