The synergistic effects of slightly acidic electrolyzed water and UV-C light on the inactivation of Salmonella enteritidis on contaminated eggshells

Poultry Science
Sh BingDengqun Shu

Abstract

Salmonella enteritidis (S. enteritidis) infection has been recognized as one of the most common bacterial causes of human gastroenteritis worldwide and is closely associated with eggs. Slightly acidic electrolyzed water (SAEW) is an emerging environmentally friendly technology for disinfecting eggshell surfaces to remove dirt and pathogenic microorganisms. However, the efficiency of SAEW could be affected by the presence of manure. UV-based advanced oxidation processes have been studied to improve the microorganism's inactivation effect of disinfection. Therefore, in this study, the synergistic bactericidal efficacy of SAEW and UV-C light (ultraviolet lamp, λ = 254 nm) for inactivation of S. enteritidis on artificially inoculated eggshells with or without manure was evaluated, and the bactericidal efficacy of different combination treatments of SAEW and UV-C light was compared. Without manure interference, complete inactivation (reduction of 6.54 log10 CFU/g) of S. enteritidis on the surface of eggshells was achieved following a 4-min treatment with SAEW+UV at an available chlorine concentration (ACC) of 20 mg/L. In the presence of manure, a 3.02 log reduction was achieved following a 4-min treatment with SAEW+UV at an ACC of 3...Continue Reading

References

Sep 5, 2002·Poultry Science·C ChavezJ B Carey
Jan 31, 2006·Letters in Applied Microbiology·K De ReuN M Bolder
Nov 7, 2013·Environmental Science & Technology·Jenna E ForsythMichael C Dodd
Sep 4, 2015·Journal of the Science of Food and Agriculture·Muhammed YüceerCengiz Caner
Jul 22, 2016·Journal of Water and Health·Alyaa M ZyaraHelvi Heinonen-Tanski
Jun 23, 2018·The Science of the Total Environment·Guo-Qiang LiHong-Ying Hu

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