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2017年05月02日

【期刊论文】一种能够产生中性电解水的便携式电解消毒设备的开发

杨宏顺, Jufang Zhang , Shigang Zhou , Ronghua Chen , Hongshun Yang

LWT - Food Science and Technology,2017,82(1):207-215

2017年04月10日

摘要

The aim of this study was to develop and evaluate the characteristics and performance of a portable electrolytic sanitising unit. Free available chlorine (FAC), oxidation-reduction potential, and pH of electrolysed water were measured. Response surface methodology coupled with a Box-Behnken design was used to describe the input-output relationship and optimise FAC production. A partial catholyte solution was reintroduced to electrolysis for generating neutral electrolysed water. The result found that RuO2- IrO2/TiO2 electrode was very effective. A FAC concentration of 4 mg/L achieved >2 log CFU/mL reduction, while a FAC concentration of 40 mg/L achieved >6 log CFU/mL reduction in Escherichia coli O157:H7 and Listeria monocytogenes BAA-839. The developed sanitiser had a pH of 7.08 ± 0.08, and the commercial sanitiser had a pH of 3.77 ± 0.18. The developed sanitiser had similar bactericidal effects as the commercial sanitiser. The results revealed that the developed sanitising unit is promising for the control of foodborne pathogens.

关键词: 便携式消毒设备, 响应面优化设计, 杀菌活性, 大肠杆菌O157:H7型, 单核细胞增多性李斯特氏菌;Portable sanitising unit , Box-Behnken design, Bactericidal activity, Escherichia coli O157:H7, Listeria monocytogenes

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