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Updated: Oct 13, 2026

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice
Published on: July 25, 2017
[Enterocin-35, a bacteriocin with activity against Listeria monocytogenes. Possible use in the food industry]
R Concha1, M E Farías, R Kümmerlin
1Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile. rconcha@udec.cl
Abstract:
The in vitro inhibitory activity of enterocin-35 produced by Enterococcus faecium CRL 35, was studied against Listeria monocytogenes, isolated from seafoods. Optimal growth conditions of the enterocin-35 producing strain, for higher bacteriocin production and improve the extraction and purification of these peptides, were applied. A crude extract of enterocin-35 was assayed in a frozen seafood artificially contaminated with Listeria monocytogenes isolate, simulating at laboratory scale an eventual application of this biopreservant in a routine production process at factory level. The feasibility of biopreservation of seafoods by means of bacteriocins is proposed and discussed.
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