Biocide tolerance in Salmonella from meats in Southern Spain

Revista de microbiologia

Garrido, Antonio Marin¹  Burgos, Mª Jose Grande² 

[1] Real Academia de Ciencias Veterinarias de Andalucía Oriental, Jaén, Spain;Universidad de Jaén, Jaén, Spain

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

DOI  :  10.1590/S1517-838246420140396

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Microbiologia / Brazilian Society for Microbiology

【 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】

CC BY-NC