Antimicrobial Activity of Bacteriocins and Their Applications

摘要: Bacteriocins are peptides or proteins that exert an antimicrobial action against a range of microorganisms. Their production can be related to the antagonism within certain ecological niche, as producer strain, being itself immune its action, generally gains competitive advantage. Many Gram-positive and Gram-negative microorganisms have been found produce bacteriocins. The former, especially ones produced by lactic acid bacteria, has field intensive research during last decades mainly due their properties account for suitability in food preservation benefits arising from that, secondarily broader inhibitory spectrum compared Gramnegative ribosomally synthesized whose responsible genes frequently associated with mobilisable elements on chromosome such association transposons plasmids (Deegan, Cotter, Hill, & Ross, 2006). This property is one main differences distinguish them antibiotics (Cleveland, Montville, Nes, Chikindas, 2001). latter considered secondary metabolites although many comprise amino acids, they enzymatically rather than synthesized.