TY - JOUR
T1 - Development of a portable electrolytic sanitising unit for the production of neutral electrolysed water
AU - Zhang, Jufang
AU - Zhou, Shigang
AU - Chen, Ronghua
AU - Yang, Hongshun
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/9/1
Y1 - 2017/9/1
N2 - 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.
AB - 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.
KW - Bactericidal activity
KW - Box-Behnken design
KW - Escherichia coli O157:H7
KW - Listeria monocytogenes
KW - Portable sanitising unit
UR - http://www.scopus.com/inward/record.url?scp=85018465363&partnerID=8YFLogxK
U2 - 10.1016/j.lwt.2017.04.020
DO - 10.1016/j.lwt.2017.04.020
M3 - 文章
AN - SCOPUS:85018465363
SN - 0023-6438
VL - 82
SP - 207
EP - 215
JO - LWT
JF - LWT
ER -