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Development of Portable Flow-Through Electrochemical Sanitizing Unit to Generate Near Neutral Electrolyzed Water
Journal of Food Science ( IF 3.9 ) Pub Date : 2018-02-22 , DOI: 10.1111/1750-3841.14080
Jufang Zhang 1, 2 , Hongshun Yang 1, 2 , Joel Zhi Yang Chan 3
Affiliation  

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. PRACTICAL APPLICATION 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 applications, such as organic farm, households, and small food industries. The examined sanitizing treatments showed effective control of Escherichia coli O157:H7 and Listeria monocytogenes.

中文翻译:

用于产生近中性电解水的便携式流通式电化学消毒装置的研制

我们开发了一种便携式流通式电化学消毒装置,用于生产 pH 值接近中性的电解水(生产新产品)。使用了两种将阴极产量重新定向回阳极室和将阳极产量重新定向到阴极室的方法。评估了新的产量,包括:游离有效氯 (FAC)、氧化还原电位 (ORP) 和 pH。研究了 2 个电极(RuO2 -IrO2 /TiO2 和 IrO2 -Ta2 O5 /TiO2)的性能。该装置在 pH 6.46 至 7.17、ORP 为 805.5 至 895.8 mV 和 FAC 为 3.7 至 82.0 mg/L 时产生新的。重定向正极产量的NEW比重定向正极产量的NEW或混合商业装置正负极产品的NEW杀菌效果更强(P < 0.05)。电子自旋共振结果表明,开发装置生产的NEW中存在羟基自由基和超氧阴离子自由基。新型发生器是一种很有前途的消毒装置,可供消费者和食品工业控制食源性病原体。实际应用 目前的商用NEW生产单元很大,不方便家庭使用。开发的便携式流通式新型生产单元在有机农场、家庭和小型食品行业等广泛应用中具有巨大潜力。经检查的消毒处理显示对大肠杆菌 O157:H7 和单核细胞增生李斯特菌的有效控制。新型发生器是一种很有前途的消毒装置,可供消费者和食品工业控制食源性病原体。实际应用 目前的商用NEW生产单元很大,不方便家庭使用。开发的便携式流通式新型生产单元在有机农场、家庭和小型食品行业等广泛应用中具有巨大潜力。经检查的消毒处理显示对大肠杆菌 O157:H7 和单核细胞增生李斯特菌的有效控制。新型发生器是一种很有前途的消毒装置,可供消费者和食品工业控制食源性病原体。实际应用 目前的商用NEW生产单元很大,不方便家庭使用。开发的便携式流通式新型生产单元在有机农场、家庭和小型食品行业等广泛应用中具有巨大潜力。经检查的消毒处理显示对大肠杆菌 O157:H7 和单核细胞增生李斯特菌的有效控制。
更新日期:2018-02-22
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