Bactericidal efficacy of slightly acidic electrolyzed water(SAEW)against Listeria monocytogenes planktonic cells and biofilm on food-contact surfaces

作     者：Jianxiong Hao Junyi Zhang Xueqi Zheng Dandan Zhao Jianxiong Hao;Junyi Zhang;Xueqi Zheng;Dandan Zhao

作者机构：College of Food Science and BiologyHebei University of Science and TechnologyShijazhuangChina 

出 版 物：《Food Quality and Safety》 (食品品质与安全研究（英文版）)

年 卷 期：2022年第6卷第2期

页      面：225-233页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 

基　　金：the Hebei Natural Science Foundation of China(No.C2018208085) the National Natural Science Foundation of China(No.31972170) 

主　　题：Slightly acidic electrolyzed water Listeria monocytogenes,biofilm food-contact surface 

摘      要：In the present study,the bactericidal efficacy of slightly acidic electrolyzed water(SAEW)against Listeria monocytogenes(***)planktonic cells and biofilm on food-contact surfaces including stainless steel and glass was systematically *** results showed that SAEW(pH 5.09 and available chlorine concentration(ACC)of 60.33 mg/L)could kill *** on food-contact surfaces completely in 30 s,a disinfection efficacy equal to that of NaCIO solutions(pH 9.23 and ACC of 253.53 mg/L).The results showed that long exposure time and high ACC contributed to the enhancement of the disinfection efficacy of SAEW on *** on food-contact ***,the log reduction of SAEW treatment presented an increasing tendency within the prolonging of treatment time when SAEW was used to remove the *** bioflm formed on stainless steel and glass surfaces,which suggested that SAEW could remove *** bio-film effectively and its disinfection efficacy is equal to(in the case of stainless steel)or higher than(in the case of glass)that of high-ACC NaCIO *** addition,the results of the crystal violet staining and scanning electron microscopy also demonstrated that SAEW treatment could remove the *** biofilm on food-contact surfaces.