Efficiency of Sanitizing Agents for Destroying Listeria monocytogenes on Contaminated Surfaces

¹ 3600 Casavant Boulevard West, Food Research and Development Centre, Saint-Hyacinthe, Quebec, J2S 8E3 Canada

In an effort to control the potential hazard of dairy product contamination by contact with processing surfaces, the efficiency of four commercial sanitizing agents was evaluated using the AOAC use-dilution method for their bactericidal activity at 4 and 20°C against Listeria monocytogenes strain Scott-A attached on four types of surfaces (stainless steel, glass, polypropylene, and rubber). Our results indicate that all sanitizers tested were more efficient against L. monocytogenes attached to nonporous surfaces than to porous surfaces. After 10 min of contact time, the limit concentration of disinfectants was at least 5 to 10 times higher for sanitizing rubber than stainless steel or glass surfaces. Concentrations of each sanitizer needed to be higher at sanitation at 4°C than at 20°C to destroy L. monocytogenes attached to stainless steel, glass and rubber when surface contamination was achieved at 4 or 20°C.

Key Words: Listeria monocytogenes • sanitizing agents • contaminated surfaces

Submitted on May 2, 1990
Accepted on July 23, 1990

This article has been cited by other articles:

				M. Schirm, M. Kalmokoff, A. Aubry, P. Thibault, M. Sandoz, and S. M. Logan Flagellin from Listeria monocytogenes Is Glycosylated with {beta}-O-Linked N-Acetylglucosamine J. Bacteriol., October 15, 2004; 186(20): 6721 - 6727. [Abstract] [Full Text] [PDF]

				D. M. Norton, M. A. McCamey, K. L. Gall, J. M. Scarlett, K. J. Boor, and M. Wiedmann Molecular Studies on the Ecology of Listeria monocytogenes in the Smoked Fish Processing Industry Appl. Envir. Microbiol., January 1, 2001; 67(1): 198 - 205. [Abstract] [Full Text]