<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The study investigated the antimicrobial activity of 13 enterococcal strains (E. faecalis -8, E. faecium-2, E. hirae-2, E. spp.-1) isolated from our traditional cheeses against pathogen microorganisms. Also, it includes the detection of the following enterocin structural genes: enterocin A, enterocin B, enterocin P, enterocin L50A/B, bacteriocin 31, enterocin AS48, enterocin Q, enterocin EJ97 and cytolysin by using PCR method. All isolates inhibited growth of L. monocytogenes and L.innocua. One isolate had a broader antimicrobial activity. None of the isolates showed inhibitory activity against S. enteritidis, E. coli and Y. enterocolitica. The genes enterocin P, cytolysin and enterocin A were the most frequently detected structural genes among the PCR positive strains. No amplification was obtained in two strains E. faecalis-25 and E. faecalis-86. Three different genes were identified in some strains. With the exclusion of strains possessing a virulence factor, such as cytolysin, producers of more than one enterocins could be of a great technological potential as protective cultures in the cheese industry.</p></abstract>

The study investigated the antimicrobial activity of 13 enterococcal strains (E. faecalis -8, E. faecium-2, E. hirae-2, E. spp.-1) isolated from our traditional cheeses against pathogen microorganisms. Also, it includes the detection of the following enterocin structural genes: enterocin A, enterocin B, enterocin P, enterocin L50A/B, bacteriocin 31, enterocin AS48, enterocin Q, enterocin EJ97 and cytolysin by using PCR method. All isolates inhibited growth of L. monocytogenes and L.innocua. One isolate had a broader antimicrobial activity. None of the isolates showed inhibitory activity against S. enteritidis, E. coli and Y. enterocolitica. The genes enterocin P, cytolysin and enterocin A were the most frequently detected structural genes among the PCR positive strains. No amplification was obtained in two strains E. faecalis-25 and E. faecalis-86. Three different genes were identified in some strains. With the exclusion of strains possessing a virulence factor, such as cytolysin, producers of more than one enterocins could be of a great technological potential as protective cultures in the cheese industry.

Phenotypic and Genotypic Characteristics of Enterocin Producing Enterococci against Pathogenic Bacteria

Food Institute, Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Republic of Macedonia

Veterinary Institute, Faculty of Veterinary Medicine-Skopje, Ss. Cyril and Methodius University in Skopje, Republic of Macedonia

Macedonian Veterinary Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The study investigated the antimicrobial activity of 13 enterococcal strains (E. faecalis -8, E. faecium-2, E. hirae-2, E. spp.-1) isolated from our...

Phenotypic and Genotypic Characteristics of Enterocin Producing Enterococci against Pathogenic Bacteria

Publié en ligne: 18 nov. 2015

Pages: 209 - 216

Reçu: 15 juin 2015

Accepté: 07 août 2015

DOI: https://doi.org/10.14432/j.macvetrev.2015.08.052

Mots clés
traditional cheese, enterococci, enterocins, antimicrobial activity

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Phenotypic and Genotypic Characteristics of Enterocin Producing Enterococci against Pathogenic Bacteria

Publié en ligne: 18 nov. 2015

Pages: 209 - 216

Reçu: 15 juin 2015

Accepté: 07 août 2015

DOI: https://doi.org/10.14432/j.macvetrev.2015.08.052

Mots cléstraditional cheese, enterococci, enterocins, antimicrobial activity

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
traditional cheese, enterococci, enterocins, antimicrobial activity