title: Response of foodborne Salmonella spp. marker strains inoculated on egg shell surfaces to disinfectants in a commercial egg washer.
abstract: The objective of this study was to determine the effectiveness of an iodine based disinfectant (IBD, Iocide, Biomedical Development Corporation, San Antonio, TX) on Salmonella enteritidis and S. typhimurium inoculated on egg shell surfaces under simulated industry egg processing conditions with a commercial egg washer used as the sanitizer delivery system. Re-circulated egg washer water containing 1.40-2.85 g/l total dissolved solids was obtained from a commercial egg processing. Sanitizing treatments consisted of distilled deionized water (DDW), IBD, and chlorine (CL; 200 ppm). All treatments (DDW, IBD and CL) significantly (p < 0.05) decreased Salmonella spp. populations on the shell compared to dry (no spray) egg controls. However, efficacy of egg sanitizers appeared to be dependent on the level of total dissolved solids in the egg wash water.
authors.affiliation: Poultry Science Department, Texas A&M University, College Station 77843-2472, USA.
authors.forename: K D
authors.initials: KD
authors.lastname: Knape
authors.forename: J B
authors.initials: JB
authors.lastname: Carey
authors.forename: S C
authors.initials: SC
authors.lastname: Ricke
mesh_terms: D000818:Animals; D015415:Biomarkers; D002645:Chickens; D002713:Chlorine / Q000494:pharmacology; D004202:Disinfectants / Q000494:pharmacology*; D004528:Egg Shell / Q000382:microbiology*; D005516:Food Microbiology; D005525:Food-Processing Industry / Q000379:methods*; D012477:Salmonella enteritidis / Q000187:drug effects*; D012486:Salmonella typhimurium / Q000187:drug effects*; D014865:Waste Disposal, Fluid / Q000379:methods; D014867:Water / Q000032:analysis
chemical_list: D015415:Biomarkers; D004202:Disinfectants; D014867:Water; D002713:Chlorine