title: Modeling disinfection of plastic poultry transport cages inoculated with Salmonella enteritids by slightly acidic electrolyzed water using response surface methodology.
abstract: In order to reduce the risk of enteric pathogens transmission in animal farms, the disinfection effectiveness of slightly acidic electrolyzed water (SAEW, pH 5.85 to 6.53) for inactivating Salmonella Enteritidis on the surface of plastic poultry transport cages was evaluated. The coupled effects of the tap water cleaning time (5 to 15 s), SAEW treatment time (20 to 40 s), and available chlorine concentrations (ACCs) of 30 to 70 mg/l on the reductions of S. Enteritidis on chick cages were investigated using a central composite design of the response surface methodology (RSM). The established RS model had a goodness of fit quantified by the parameter R2 (0.971), as well as a lack of fit test (P>0.05). The maximum reduction of 3.12 log10 CFU/cm2 for S. Enteritidis was obtained for the cage treated with tap water cleaning for 15 s followed by SAEW treatment for 40 s at an ACC of 50 mg/l. Results indicate that the established RS model has shown the potential of SAEW in disinfection of bacteria on cages.
authors.affiliation: Key Laboratory of Structure and Environment in Agricultural Engineering, Ministry of Agriculture, China Agricultural University, Beijing 100083, China.
authors.forename: Y T
authors.initials: YT
authors.lastname: Zang
authors.affiliation: Key Laboratory of Structure and Environment in Agricultural Engineering, Ministry of Agriculture, China Agricultural University, Beijing 100083, China.
authors.forename: B M
authors.initials: BM
authors.lastname: Li
authors.affiliation: Shandong Agricultural University, Shandong 271000, China.
authors.forename: Sh
authors.initials: Sh
authors.lastname: Bing
authors.affiliation: Key Laboratory of Structure and Environment in Agricultural Engineering, Ministry of Agriculture, China Agricultural University, Beijing 100083, China caowei@cau.edu.cn.
authors.forename: W
authors.initials: W
authors.lastname: Cao
mesh_terms: D000818:Animals; D002645:Chickens; D004202:Disinfectants / Q000494:pharmacology*; D004203:Disinfection / Q000379:methods*; D006799:Housing, Animal; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D010969:Plastics / Q000032:analysis; D011201:Poultry Diseases / Q000382:microbiology / Q000517:prevention & control*; D011897:Random Allocation; D012481:Salmonella Infections, Animal / Q000382:microbiology / Q000517:prevention & control*; D012477:Salmonella enteritidis / Q000187:drug effects* / Q000502:physiology
chemical_list: D004202:Disinfectants; D010969:Plastics; C118085:superoxidized water; D006861:Hydrogen Peroxide
keywords: S. Enteritidis; Slightly acidic electrolyzed water; disinfection; modelling; poultry transport cages