This study evaluated the antimicrobial efficacy of different concentrations of ozonated water with organic matter, fetal bovine serum, at different concentrations and incubation times with bacteria. In the absence of organic matter, total eradication of up to 5 log of Escherichia (E.) coli was achieved, however, interference by organic matter led to inefficiency of ozonated water as a disinfecting agent. In addition, diminishing antimicrobial effects at higher temperatures, even in the absence of organic matter, were also demonstrated. These findings indicate that ozonated water will be a safe and effective disinfectant agent that could be useful in meat processing, especially an intestine processing, in Korean slaughter houses.

• Lauren Togonon Arayan(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University)
• Alisha Wehdnesday Bernardo Reyes(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University)
• Huynh Tan Hop(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University)
• Huy Tran Xuan(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University)
• Eun Jin Baek(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University)
• Suk Kim(Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Institute of Agriculture and Life Science, Gyeongsang National University) Corresponding Author
• Hong Hee Chang(Institute of Agriculture and Life Science, Gyeongsang National University)
• Han Sul Yang(Institute of Agriculture and Life Science, Gyeongsang National University)