Studying the antimicrobial effect of detergents and disinfectants on the microflora of the egg shell surface

Abstract

The article presents the results of evaluating the antimicrobial effect of detergents and disinfectants on the microflora of the eggshell surface. Washing and disinfection of eggs was carried out by manual treatment by immersion in washing and disinfecting solutions and subsequent washing with brushes. For washing eggs, an alkaline detergent with a «Sanet BIO» disinfectant effect was used, and for disinfection, one of the four selected disinfectants belonging to different groups of drugs: «SUNWAY DES» disinfectant (peroxide), «Silversil Des» disinfectant (silver-containing), «Lanex» disinfectant (based on Quaternary ammonium compounds), and «Catelon 502» disinfectant (containing peracetic acid). It was found that the treatment of eggs in order to reduce the contamination of the surface of their shells with «SUNWAY DES», «Catelon 502» and «Lanex» disinfectants by hand washing confirmed their effectiveness and leads to the disinfection of the shell from opportunistic and pathogenic microorganisms, as well as reduces the overall microbial contamination. Sanitization of egg shells of edible hen eggs by hand washing with the use of «Silversil Des» disinfectant in the spent modes showed that this tool is not effective in disinfecting egg shells, since immediately after processing, Staphylococcus aureus, Salmonella s.p.p. and Listeria s.p.p. bacteria were found on their surface.