Related Experiment Video
Updated: Sep 26, 2026

Measuring Bacterial Load and Immune Responses in Mice Infected with Listeria monocytogenes
Published on: August 9, 2011
Bactericidal activity of disinfectants on Listeria
A Van de Weyer1, M J Devleeschouwer, J Dony
1Department of Environmental Microbiology, School of Public Health, Université Libre de Bruxelles, Belgium.
Abstract:
The bactericidal activity on Listeria spp. of nine disinfectants used in the food industry was studied by previously published methods. The disinfectants were diluted to the test concentration in sterile standard hard water. Various types of chemical agents were evaluated, including phenolic compounds, alcohols, quaternary ammonium compounds, surface-active agents, aldehydes and disochlorine tablets. The following strains isolated from cheese were studied: Listeria innocua, L. welshimeri, L. monocytogenes 1/2a, 1/2b, 1/2c and 4b. The results show that the listerias are not particularly resistant to disinfectants but the efficacy of some agents is affected by organic matter.
Related Concept Videos
Methods for Controlling Microbial Growth
Physical Methods for Controlling Microbial Growth: Temperature
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
Chemical Agents for Microbial Control
Biological Methods for Microbial Control
Antimicrobial Effectiveness

