Antilisterial Activity of Nisin-Like Bacteriocin-Producing Lactococcus lactis subsp. lactis Isolated from Traditional Sardinian Dairy Products
Joint Authors
Cosentino, Sofia
Deplano, Maura
Fadda, Maria Elisabetta
Pisano, Maria Barbara
Pomata, Rita
Melis, Roberta
Source
Journal of Biomedicine and Biotechnology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-27
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
With the aim of selecting LAB strains with antilisterial activity to be used as protective cultures to enhance the safety of dairy products, the antimicrobial properties of 117 Lactococcus lactis subsp.
lactis isolated from artisanal Sardinian dairy products were evaluated, and six strains were found to produce bacteriocin-like substances.
The capacity of these strains to antagonize Listeria monocytogenes during cocultivation in skimmed milk was evaluated, showing a reduction of L.
monocytogenes counts of approximately 4 log units compared to the positive control after 24 h of incubation.
In order for a strain to be used as bioprotective culture, it should be carefully evaluated for the presence of virulence factors, to determine what potential risks might be involved in its use.
None of the strains tested was found to produce biogenic amines or to possess haemolytic activity.
In addition, all strains were sensitive to clinically important antibiotics such as ampicillin, tetracycline, and vancomycin.
Our results suggest that these bac+ strains could be potentially applied in cheese manufacturing to control the growth of L.
monocytogenes.
American Psychological Association (APA)
Cosentino, Sofia& Fadda, Maria Elisabetta& Deplano, Maura& Melis, Roberta& Pomata, Rita& Pisano, Maria Barbara. 2012. Antilisterial Activity of Nisin-Like Bacteriocin-Producing Lactococcus lactis subsp. lactis Isolated from Traditional Sardinian Dairy Products. Journal of Biomedicine and Biotechnology،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-467236
Modern Language Association (MLA)
Cosentino, Sofia…[et al.]. Antilisterial Activity of Nisin-Like Bacteriocin-Producing Lactococcus lactis subsp. lactis Isolated from Traditional Sardinian Dairy Products. Journal of Biomedicine and Biotechnology No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-467236
American Medical Association (AMA)
Cosentino, Sofia& Fadda, Maria Elisabetta& Deplano, Maura& Melis, Roberta& Pomata, Rita& Pisano, Maria Barbara. Antilisterial Activity of Nisin-Like Bacteriocin-Producing Lactococcus lactis subsp. lactis Isolated from Traditional Sardinian Dairy Products. Journal of Biomedicine and Biotechnology. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-467236
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467236