Antibacterial Efficacies of Disinfectants against Salmonella typhimurium Depending on Pre-warming Conditions

  • Lee, Jin-Ju (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Kim, Dong-Hyeok (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Kim, Dae-Geun (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Simborio, Hannah Leah (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Min, Won-Gi (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Lee, Hu-Jang (College of Veterinary Medicine, Gyeongsang National Univ.) ;
  • Chang, Dong-Il (Dept. of Bio-Industrial and Machinery, Chungnam National Univ.) ;
  • Chang, Hong-Hee (Institute of Agriculture and Life Science, Gyeongsang National Univ.) ;
  • Kim, Suk (College of Veterinary Medicine, Gyeongsang National Univ.)
  • Received : 2012.05.09
  • Accepted : 2012.10.25
  • Published : 2012.10.31

Abstract

Salmonellosis is a widespread bacterial zoonosis that commonly causes enterocolitis and foodborne poisoning leading to an extensive economic loss in domestic animal industry. Considerably, the emergence of multidrug resistant strains of Salmonella spp. induces further severe problems affecting public health. The present report was designated to investigate the antibacterial efficacies of three common disinfectants including an oxidizing compound disinfectant (OXC), a triple salt (TS) and a quaternary ammonium compound (QAC) against Salmonella typhimurium subjected to the preliminary changes of drug temperature. All solutions of three disinfectants were pre-incubated at different temperature (22, 37 and $63^{\circ}C$) for 1 h prior to exposure to bacteria. The disinfectants and bacteria were diluted with distilled water (DW), hard water (HW) or organic matter suspension (OMS) according to treatment condition. Under the DW condition, the disinfectant efficacy of the QAC at $63^{\circ}C$ was higher than that of $22^{\circ}C$. Furthermore, under HW diluent the disinfectant efficacy of the TS pre-warmed at both of 37 and $63^{\circ}C$ were increased compared to that of $22^{\circ}C$. Considerably, the efficacy of pre-warmed QAC at both of 37 and $63^{\circ}C$ under the OMS diluent were higher than that of $22^{\circ}C$. Conclusively, prewarming at higher temperatures have positive effects on the stability of the antibacterial efficacies of TS and QAC.

Keywords

Acknowledgement

Supported by : Ministry for Food, Agriculture, Forestry and Fisheries

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