EN
Bacteriocins are heterogeneous group of ribosomally synthesized proteins or peptides produced by different bacteria that kill or inhibit growth of other bacteria. The interest in bacteriocins results from their potential application as biopreservatives in food to inhibit the growth of spoilage or pathogen bacteria In this paper identification of these metabolites and their physical and biochemical properties, including spectrum of activity, terms of size, amino acid sequence, modes of action and immunity mechanisms are presented.