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pp.99-105
본 연구에서는 전기분해 격막 및 전해액에 따른 전해산화 수의 물리적 특성 및 미생물의 표면살균 효과를 검토하였다. 격막 방식의 전기분해수 제조 시스템의 최적조건은 간극이 1.0 mm 20% NaCl 첨가량이 6 mL/mm 일 때 제조된 전해산화수의 물성치가 ORP 1,170 mV 수준, HClO 함량 100 ppm 수준, pH 2.5 수준으로 가장 우수하게 나타났으며, 1단 방식보다는 2단의 전기분해 방식이 물성 측면에서 우수함을 알 수 있었다.
This study was carried out to investigate the efficacy of surface sterilization and the physicochemical properties of electrolyzed water manufactured from various electrolytic diaphragm and electrolyte. Physical properties of electrolyzed water manufactured from the diaphragm system were the most effective at the following conditions; the distance between diaphragms was 1.0 mm and the supplying rate of 20% NaCl was 6 mL/min. The ORP, HClO content and pH at above conditions were 1,170 mV, 100 ppm and 2.5, respectively. And two stage electrolyzed system was more effective than one stage electrolyzed water manufactured from non-diaphragm system, with 4 mL/min supplying rate of 20% NaCl, was similar to the most effective diaphragm system. But ORP, HClO content and pH were abut 800 mV, 200 ppm and 9 level, respectively. Sealed electrolyzed water could be preserved more than one month at room temperature with ORP of 750 mV in non-diaphragm system and 1,150 mV in diaphragm system, and HClO content of 100 ppm. Twelve kinds of microorganism tested were sterilized within 30 seconds from initial total counts of 105/∼106/cfu/ml by electrolyzed water. Though the ORP and HCIO contents of electrolyzed water manufactured from various electrolyte were higher in order of NaCl>KCl>CaCl, there were no difference between the electyolytes in the efficacy of sterilization. Salmonella typhi and Vibrio Proteolyticus were also sterilized by electrolyzed water manufactured from elctrolytes of NaCl CaC1and KCl
