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Food Quality and Safety 2022年第2期6卷 225-233页

作者： Jianxiong Hao Junyi Zhang Xueqi Zheng Dandan Zhao College of Food Science and Biology Hebei University of Science and TechnologyShijazhuangChina

In the present study,the bactericidal efficacy of slightly acidic electrolyzed water(SAEW)against Listeria monocytogenes(L.monocytogenes)planktonic cells and biofilm on food-contact surfaces including stainless steel and glass was systematically evaluated.The results showed that SAEW(pH 5.09 and available chlorine concentration(ACC)of 60.33 mg/L)could kill L.monocytogenes 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 L.monocytogenes on food-contact surfaces.Moreover,the log reduction of SAEW treatment presented an increasing tendency within the prolonging of treatment time when SAEW was used to remove the L.monocytogenes bioflm formed on stainless steel and glass surfaces,which suggested that SAEW could remove L.monocytogenes 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 solutions.In addition,the results of the crystal violet staining and scanning electron microscopy also demonstrated that SAEW treatment could remove the L.monocytogenes biofilm on food-contact surfaces.

关键词： slightly acidic electrolyzed water Listeria monocytogenes,biofilm food-contact surface

Preservative effects of the combined treatment of slightly acidic electrolyzed water and ice on pomfret

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International Journal of Agricultural and Biological Engineering 2021年第1期14卷 230-236页

作者： Xiaoling Huang Songming Zhu Xiaomin Zhou Jinsong He Yong Yu Zhangying Ye College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China Ocean Academy Zhejiang UniversityZhoushan 316000ZhejiangChina Industrial Enterprise Research Institute of Marine Food Deep Processing Zhoushan 316101ZhejiangChina College of Food Science and Technology Yunnan Agricultural UniversityKunming 650201China

This study assessed the combined effect of slightly acidic electrolyzed water(SAEW)and slightly acidic electrolyzed water ice(SAEW-ice)on the quality of pomfrets over a period of 18 d of cold storage at 4°C.A presoak for 5 min in SAEW solution(22 mg/L)was used before the pomfrets were placed on SAEW-ice(pH:6.45;ORP:803 mV;ACC:18 mg/L);The changes in physicochemical properties(i.e.,pH,thiobarbituric acid,total volatile basic nitrogen and texture profile),microbial loads and sensory characteristics were all analyzed.Compared with the tap water(TW)group,the total bacterial counts of the SAEW group significantly decreased by 1.27 log10 CFU/g after immersion(p<0.05).The shelf life of the pomfrets was prolonged by 9 d by the combined treatment of SAEW and SAEW-ice during storage at 4℃.On the 18th day,the gumminess and chewiness values of the pomfrets in the SAEW+SAEW-ice group were 195 g and 3.97 mJ,respectively,which were significantly higher than those of the other groups(p<0.05).The results suggested that SAEW+SAEW-ice treatments have great potential as a novel method to maintain the quality and extend the shelf life of pomfrets during refrigerated storage.

关键词： pomfret slightly acidic electrolyzed water slightly acidic electrolyzed water ice storage quality preservation

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

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International Journal of Agricultural and Biological Engineering 2017年第6期10卷 23-30页

作者： Zang Yitian Li Baoming Shi Zhengxiang Sheng Xiaowei Wu Hongxiang Shu Dengqun College of Animal Science and Technology Jiangxi Agricultural UniversityNanchang 330045China Key Laboratory of Structure and Environment in Agricultural Engineering Ministry of AgricultureChina Agricultural UniversityBeijing 100083China

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(p0.05).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

Disinfection effect of adding slightly acidic electrolyzed water to artificial seawater under the condition of static hybrid

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International Journal of Agricultural and Biological Engineering 2020年第2期13卷 218-222页

作者： Chunfang Wang Xiaoling Huang Shuo Wang Yong Yu Songming Zhu Zhangying Ye College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China Research Center for Agricultural Products Preservation and Processing Shanghai Academy of Agricultural SciencesShanghai 201403China Ocean Academy Zhejiang UniversityZhoushan 316000China

Mixed solution of slightly acidic electrolyzed water(SAEW)and artificial seawater was used to investigate the disinfection potential of SAEW in artificial seawater.Inoculated Vibrio parahaemolyticus(suspended in 3%sodium chloride alkaline peptone water and 0.85%sodium chloride water,respectively)was subjected to different mixed-SAEW and SAEW immersion treatments(5-20 mg/L available chlorine concentration(ACC)).In the presence of organic matter,4.07 logCFU/mL significant reduction(pwater at 1:15(V/V),SAEW could inactivate V.parahaemolyticus to undetectable level in artificial seawater in one minute,which was comparable with UV treatment of 10 W.The results indicated high sanitization potential of SAEW against V.parahaemolyticus in aquaculture seawater.

关键词： slightly acidic electrolyzed water disinfection inactivation Vibrio parahaemolyticus artificial seawater ultraviolet

electrolyzed water and its application in animal houses

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Frontiers of Agricultural Science and Engineering 2016年第3期3卷 195-205页

作者： Weichao ZHENG Li NI Baoming LI Key Lab of Agricultural Engineering in Structure and Environment Ministry of Agriculture/Beijing Engineering Research Center on Animal Healthy Environment/College of Water Resources & Civil Engineering China Agricultural University

electrolyzed water(EW) can be produced by electrolysis of a dilute salt solution. slightly acidic electrolyzed water(SAEW, p H 5.0–6.5) and neutral electrolyzed water(NEW, p H 6.5–8.5) are considered healthy and environmentally friendly because no hazardous chemicals are added in its production, there is reduced corrosion of surfaces and it minimizes the potential for damage to animal and human health. Over the last decade, EW has become increasingly popular as an alternative disinfectant for decontamination in animal houses. However, there have been some issues related to EW that are not well known, including different mechanisms for generation of SAEW and NEW, and the antimicrobial mechanism of EW. This review covers the definitions of SAEW and NEW, different generation systems for SAEW and NEW, the antimicrobial mechanism of EW, and recent developments related to the application of SAEW and NEW in animal houses.

关键词： disinfection poultry and livestock slightly acidic electrolyzed water neutral electrolyzed water