BACTERIOCINS OF LACTIC-ACID BACTERIA IN COMBINATION HAVE GREATER ANTIBACTERIAL ACTIVITY

Antibacterial efficiency of two bacteriocins from lactic acid bacteria, pediocin AcH, and nisin was tested individually and in combination against several gram-positive bacterial strains including some involved in food spoilage and foodborne diseases. Pediocin AcH and nisin were more antibacterial in combination than when they were used alone. The principles of this greater antibacterial spectrum have been proposed. Bacteriocins in combinations can be used advantageously to design efficient natural food biopreservative(s).