Animal Products

Colicin E1 has High Antimicrobial Activity against Listeria Monocytogenes in Culture and on Packaged Ham

Authors: Brenda Patton (Iowa State University) , Sara Cutler (Iowa State University) , James S. Dickson (Iowa State University) , Steven M. Lonergan (Iowa State University) , Chad H. Stahl (Iowa State University)

Abstract

Colicins are gram-negative bacteriocins produced by, and effective against Escherichia coli and closely related species. This study evaluated the activity of a purified poreforming, Colicin E1 (ColE1) against L. monocytogenes in broth and on RTE product surfaces. Colicins were effective at reducing Listeria populations at doses as low as 0.1µg/mL in broth culture, and up to 5.5 log CFU/g on cured ham slices. Colicins may be an effective intervention for the control of Listeria in ready to eat meat products.

Keywords: ASL R2179

How to Cite: Patton, B. , Cutler, S. , Dickson, J. S. , Lonergan, S. M. & Stahl, C. H. (2007) “Colicin E1 has High Antimicrobial Activity against Listeria Monocytogenes in Culture and on Packaged Ham”, Iowa State University Animal Industry Report. 4(1). doi: https://doi.org/10.31274/ans_air-180814-79