Studies on disinfection mechanism of electrolyzed oxidizing water on E. coli and Staphylococcus aureus

Journal of Food Science
Xinping ZengPing Li

Abstract

Suspension quantitative germicidal test showed that electrolyzed oxidizing water (EO water) was an efficient and rapid disinfectant. Disinfection rates towards E. coli (available chlorine concentration ACC: 12.40 mg/L) and Staphylococcus aureus (ACC: 37.30 mg/L) could reach 100% at 1 and 3 min, respectively. Disinfection mechanism of EO water was investigated at a molecular biological level by detecting a series of biochemical indices. The results showed that the dehydrogenase activities of E. coli and S. aureus decreased rapidly, respectively, at the rates of 45.9% and 32% in the 1st minute treatment with EO water. EO water also improved the bacterial membrane permeability, causing the rise of conductivities and the rapid leakages of intracellular DNA, K(+), and proteins in 1 min. The leakages of DNA and K(+) tended to slow down after about 1 min while those of proteins began to decrease a little after reaching the peak values. The sodium dodecyl sulfonate polyacrylamide gel electrophoresis (SDS-PAGE) showed that EO water destroyed intracellular proteins. The protein bands got fainter and even disappeared as the treatment proceeded. EO water's effects on the bacterial ultrastructures were also verified by the transmission elec...Continue Reading

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Citations

Aug 3, 2011·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·R M S ThornD M Reynolds
Feb 25, 2014·Journal of the Air & Waste Management Association·Chi-Yu ChuangWei Fang
Mar 24, 2012·Canadian Journal of Microbiology·Ji-Lu SunBei-Zhong Han
Feb 22, 2012·International Journal of Food Microbiology·Jianxiong HaoLite Li
Apr 5, 2011·Journal of Bioscience and Bioengineering·Xinping ZengPing Li
Feb 3, 2015·Journal of Environmental Health Science & Engineering·Robert PintaricStefan Pintaric
Jun 7, 2014·Preparative Biochemistry & Biotechnology·Bingna CaiHuili Sun
Mar 23, 2017·International Journal of Molecular Sciences·Żaneta KrólAndrzej Jarmoluk
Jan 12, 2019·Journal of the Air & Waste Management Association·Zonggang LiYang Wang
Jan 19, 2019·Current Pharmaceutical Design·Chahinez HouacineKamalinder K Singh
Apr 4, 2017·Journal of Cosmetic Dermatology·Michael H GoldMeagan-Helen Henderson Berg
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Jun 24, 2017·Frontiers in Microbiology·Qiao HanYong Zhao
Oct 28, 2019·Foodborne Pathogens and Disease·Daiane Elisa WilsmannVladimir Pinheiro do Nascimento
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Mar 7, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xiao LiuYu He
Jul 24, 2021·Indian Journal of Microbiology·Elif Ayşe Erdoğan Eliuz

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