Modeling Disinfection of Vehicle Tires Inoculated with Enteric Pathogens on Animal Farms Using Response Surface Methodology

摘要：

　　To reduce the risk of enteric pathogens transmission and drug residues in animal farms, the disinfection effectiveness of slightly acidic electrolyzed water (SAEW, pH 5.85-6.53) for inactivating Escherichia coli and Salmonella enteritidis mixture on the surface of vehicle tires was evaluated.The coupled effects of the tap water washing time (2 to 4 min), SAEW treatment time (3-7 min) and available chlorine concentrations (ACCs) of 80 to 140 mg/1 on the reductions of E.coli and S.enteritidis mixture on tires were investigated using a central composite design of the response surface (RS) methodology.The established RS model had a goodness of fitting quantified by the parameters of R2 (0.984), lack of fit test (P > 0.05).The maximum reduction of 1.38 logl0 CFU/cm2 (92.9%) for E.coli and S.enteritidis mixture was obtained by the vehicle tire treated with 4 min tap water washing for followed by 5 rain SAEW treatment for at an ACC of 140 mg/l.The established RS model shows the potential of SAEW in disinfection of bacterial cells on tires.

关键词： Slightly acidic electrolyzed water disinfection vehicle tires response surface methodology animal farms

作者: Yitian Zang Xingshuo Li Baoming Li Changhua Lu Wei Cao

作者单位: Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture,Chi Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture,National Center

会议类型: 国际会议

会议名称: The 2015 International Symposium on Animal Environment and Welfare(动物环境和福利国际研讨会)

会议地点: 重庆

会议语种:英文

页码: 296-302

在线出版日期: 2015-10-23（万方平台首次上网日期，不代表论文的发表时间）