Summary and Implications
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.
Iowa State University
Patton, Brenda; Cutler, Sara; Dickson, James S.; Lonergan, Steven M.; and Stahl, Chad H.
"Colicin E1 has High Antimicrobial Activity against Listeria Monocytogenes in Culture and on Packaged Ham,"
Animal Industry Report:
AS 653, ASL R2179.
Available at: https://lib.dr.iastate.edu/ans_air/vol653/iss1/6