Inhibition of Listeria monocytogenes in cold-smoked salmon by Carnobacterium piscicola CS526 isolated from frozen surimi

摘要: Strain CS526 was isolated from frozen surimi and identified as a bacteriocin producer that had strong inhibitory activity against Listeria monocytogenes. Carnobacterium piscicola by partial 16S rDNA sequence similarity. The ability of this bacteriocinogenic strain nonbacteriocinogenic C. JCM5348 to inhibit the growth L. monocytogenes examined in culture broth incubated at 12 degrees C cold-smoked salmon stored 4, 12, 20 viable counts rapidly declined 10(6) colony-forming units per ml less than 10 within 1 day presence CS526. At 4 C, inhibition on depended initial inoculum level However, bactericidal 21 days salmon, respectively, even when levels were low. suppressed maximum cell number two three log cycles, did not prevent pathogen, except Bacteriocin detected samples coinoculated with study shows might have potential for biopreservation refrigerated foods