Efficacy of Aerosolized Natural Antimicrobial and Organic Acids as a Sanitizer against Foodborne Pathogens on Stainless Steel
2011
Ha, S.J., Kookmin University, Seoul, Republic of Korea | Yang, S.K., Kookmin University, Seoul, Republic of Korea | Park, H.J., Kookmin University, Seoul, Republic of Korea | Kim, C.H., Seoul Food RnD Corporation, Seongnam, Republic of Korea | Oh, S.W., Kookmin University, Seoul, Republic of Korea
This study was carried out to investigate efficacy of aerosol sanitizer with natural antimicrobial and organic acids against Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes. The artificially inoculated pathogens on stainless steel coupon were treated with grapefruit seed extract (GFE), acetic acid, citric acid and lactic acid in model cabinet for 5 min. The number of three foodborne pathogens with individual treatment was reduced by 0.34-3.77 log units, treatment with GEF + organic acid was reduced by 1.72-3.89 log units and treatment with GEF + organic acid + alcohol was reduced by 1.46-5.05 log units. By treatment with GEF + lactic acid + alcohol in scale-up model system for 10 min. Populations of E. coli O157:H7, S. Typhimurium and L. monocytogenes were reduced by 3.42, 2.72 and 2.30 log units from the untreated control respectively. From the above result, aerosol sanitizer with natural antimicrobial agents and organic acid can be used as an environmental sanitation method with satisfying the consumer demand on safe food.
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