Development of Portable Flow-Through Electrochemical Sanitizing Unit to Generate Near Neutral Electrolyzed Water

Journal of Food Science
Jufang ZhangJoel Zhi Yang Chan

Abstract

We developed a portable flow-through, electrochemical sanitizing unit to produce near neutral pH electrolyzed water (producing NEW). Two methods of redirecting cathode yields back to the anode chamber and redirecting anode yields the cathode chamber were used. The NEW yields were evaluated, including: free available chlorine (FAC), oxidation-reduction potential (ORP), and pH. The performances of 2 electrodes (RuO2 -IrO2 /TiO2 and IrO2 -Ta2 O5 /TiO2 ) were investigated. The unit produced NEW at pH 6.46 to 7.17, an ORP of 805.5 to 895.8 mV, and FAC of 3.7 to 82.0 mg/L. The NEW produced by redirecting cathode yields had stronger bactericidal effects than the NEW produced by redirecting anode yields or NEW produced by mixing the commercial unit's anode and cathode product (P < 0.05). Electron spin resonance results showed hydroxyl free radicals and superoxide anion free radicals were present in the NEW produced by developed unit. The NEW generator is a promising sanitizing unit for consumers and the food industry to control foodborne pathogens. Current commercial NEW-producing units are quite large and are not convenient for family using. The developed portable flow-through, NEW-producing unit has great potential in a wide range of...Continue Reading

References

Jan 24, 2002·Journal of Agricultural and Food Chemistry·Tetsuya SuzukiKunimoto Hotta
Feb 12, 2005·The Journal of Organic Chemistry·Jean-Louis ClémentPaul Tordo
Jun 9, 2005·Journal of Agricultural and Food Chemistry·Silvia D StanMark A Daeschel
Feb 22, 2012·International Journal of Food Microbiology·Jianxiong HaoLite Li
Feb 18, 2016·Chemical Reviews·Rasmus K B Karlsson, Ann Cornell

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Citations

Aug 8, 2019·Critical Reviews in Food Science and Nutrition·Li-Zhen DengHong-Wei Xiao
Jan 14, 2021·Microorganisms·Pianpian YanDeog-Hwan Oh
Jun 5, 2021·Fungal Biology Reviews·Catheryn R DaviesSimon V Avery

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