Inactivation efficiency of slightly acidic electrolyzed water against microbes on facility surfaces in a disinfection channel  

作　　者：Zang Yitian Li Baoming Shi Zhengxiang Sheng Xiaowei Wu Hongxiang Shu Dengqun 

机构地区：[1]College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China [2]Key Laboratory of Structure and Environment in Agricultural Engineering,Ministry of Agriculture,China Agricultural University,Beijing 100083,China

出　　处：《International Journal of Agricultural and Biological Engineering》2017年第6期23-30,共8页国际农业与生物工程学报（英文）

基　　金：The author gratefully acknowledges the financial support from China Agricultural Research Systems(CARS-41);Southern plant-eating livestock microclimate regulation technology research(201303145);Science and Technology Plan Projects of Department of Education of Jiangxi Province(Grant No.:GJJ160401).The author also likes to acknowledge Zhao Lijie for assisting with the experiments.

摘　　要：Slightly acidic electrolyzed water(SAEW,pH 6.0-6.5)is an ideal and environmentally-friendly disinfectant,which was used to prevent and control bacterial infections on farms.This work aims to investigate the inactivation effectiveness of SAEW in inactivating microbes in a disinfection channel.The bactericidal efficiency of SAEW on equipment surfaces was compared to two commercial disinfectants,Kuei A bromide solution(KAS,5:1000 v/v)and Glutaraldehyde solution(GS,5:1000 v/v).The disinfection effectiveness of SAEW in inactivating Salmonella enteritidis(S.enteritidis)on equipment surfaces in the disinfection channel was evaluated,and a model was developed using multiple linear regression analysis.Results indicated that SAEW was significantly(p<0.05)more efficient than KAS and GS on kits and clothing in the disinfection channel at 1 min.The SAEW did not contribute as aggressively to respiratory difficulty as KAS and GS.Maximum reductions of 2.362 log10 CFU/cm^(2),2.613 log10 CFU/cm^(2) and 2.359 log10 CFU/cm^(2) for Salmonella enteritidis were obtained from clothing surfaces,iron materials,and kits treated with SAEW for 2.5 min at a chlorine concentration of 220 mg/L.Moreover,the established model had a good fit-quantified by the determination coefficient R^(2)(0.939)and a lack of fit test(p>0.05).In addition,available chlorine concentration(ACC)was an important factor than other factors,and the inactivation efficiency of Salmonella enteritidis sprayed by SAEW treatment was different between iron materials,kits and clothing surfaces(iron>kit>clothing).

关 键 词：slightly acidic electrolyzed water disinfection channel S.enteritidis DISINFECTION bacterial infection prevention and control livestock farm 

分 类 号：TG1[金属学及工艺—金属学]