ASSESSMENT OF BACTERICIDAL ACTION OF AQUEOUS OZONE TO DISINFECTED THE SURFACE OF EGGS
DOI:
https://doi.org/10.37406/2706-9052-2025-2.18Keywords:
water form of ozone, bactericidal action, egg disinfection, bacteria strainsAbstract
Most egg shell contaminants occur immediately after the eggs are laid, and the main source of contamination is the contact of the shell with dirty surfaces. Therefore, the use of ecological safe and effective ways of decontamination of the surface of chicken eggs in the technology of egg production technology, the question is relevant, and the development is innovative and are quite promising. The purpose of this study was to determine the minimal bactericidal concentration and the protein index of aqueous ozone relative to museum strains of microorganisms. It was established that the most resistant to the aqueous form of ozone were spore -forming bacteria B. subtilis, for which minimal bactericidal concentration ozone was 1.53 mg/l, in the second place were yeast C. albicans – minimal bactericidal concentration – 1.23 mg/l, the average minimal bactericidal concentration was registered to S. aureus, E. coli and P. aeruginosa – 0.8 mg/l. The lowest bactericidal concentration (0.8-1.0 mg/l) of aqueous ozone on strains of conditionally pathogenic bacteria was manifested during an exposure of 12–15 min. For the destruction of E. coli and P. aeruginosa cells within one minute, it is necessary that the ozone concentration is 1.23 mg/l, and for S. aureus – 1.53 mg/l. Also, the bactericidal concentration of ozone on strains B. subtilis and C. albicans within 12–15 min of the exposure was 1.53 and 1.23 mg/l, respectively. Organic contamination naturally reduces the bactericidal concentration of ozone, in particular within three minutes of the exposure, on average 1.6 times, and for exposures for six minutes about 1.2 times. That is, to increase the efficiency of the water form of ozone in production conditions it is necessary to increase its concentration and time of influence. At the same time, in order to optimize the concentration of the water form of ozone and contact with microorganisms, it is necessary to carry out more thorough studies to establish all factors that can affect the disinfection process.
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