Characterization of bacteriocin produced by Lactococcus lactis ssp. lactis strains isolated from marine fish caught in the Algerian west coast

Sahnouni F.; BOUTIBAMAATALLAH A.; BOUHADI D.; BOUTIBA Z.

Article Details

Characterization of bacteriocin produced by Lactococcus lactis ssp. lactis strains isolated from marine fish caught in the Algerian west coast

Authors:

Sahnouni F. | BOUTIBAMAATALLAH A. | BOUHADI D. | BOUTIBA Z.

Publisher:

Mevlüt AKÇURA

Journal:

Turkish Journal of Agricultural and Natural Sciences 2014 Vol.1 Issue Özel Sayı-2, pp.1838-1843

Document Type:

Article

Publication Date:

2/2014

Document Language:

Turkish

Document ID (Org No.):

2000670834

Frequency:

Quarterly

pISSN:

2148-3647

Abstract:

 

A total of 38 strains of Lactococcus lactis ssp. lactis, were isolated from gastrointestinal tract of coastal fish: sardine (Sardina pilchardus) and bug (Boops boops). These isolates were tested for their ability to produce bacteriocins against Listeria innocua, Brochothrix thermophacta, Salmonella sp., Staphylococcus aureus, Bacillus cereus, Aeromonas hydrophila, Pseudomonas aeuroginosa Escherichia coli and Methycilin resistant Staphyococcus aureus. However characterization of the antimicrobial substances showed that only 04 of isolates produced antimicrobial activity in the neutralized cell-free supernatant treated with catalase against indicator strains. The compounds produced by the selected strains were fully or partially inactivated by some of the proteolytic enzymes (trypsine, α-chymotrypsin and proteinase K), which indicates their proteinaceous nature. The antimicrobial activity of crude supernatant fluid was stable after heating at 100 °C for 30 min and declined thereafter. It was also active over a wide pH range (4–8). Selected strains in this study might be valuable for practical application as source of bacteriocin, providing future scope for the biopreservation of seafood products.

Article Details

Characterization of bacteriocin produced by Lactococcus lactis ssp. lactis strains isolated from marine fish caught in the Algerian west coast

Authors: Sahnouni F. | BOUTIBAMAATALLAH A. | BOUHADI D. | BOUTIBA Z.

Publisher: Mevlüt AKÇURA

Journal: Turkish Journal of Agricultural and Natural Sciences 2014 Vol.1 Issue Özel Sayı-2, pp.1838-1843

Document Type: Article

Publication Date: 2/2014

Document Language: Turkish

Document ID (Org No.): 2000670834

Frequency: Quarterly

pISSN: 2148-3647

Issues

Authors:

Sahnouni F. | BOUTIBAMAATALLAH A. | BOUHADI D. | BOUTIBA Z.

Publisher:

Mevlüt AKÇURA

Journal:

Turkish Journal of Agricultural and Natural Sciences 2014 Vol.1 Issue Özel Sayı-2, pp.1838-1843

Document Type:

Article

Publication Date:

2/2014

Document Language:

Turkish

Document ID (Org No.):

2000670834

Frequency:

Quarterly

pISSN:

2148-3647