Characterisation of anti‐Listeria monocytogenes bacteriocins from Enterococcus faecium strains isolated from dairy products
Abstract
Bacteriocin‐producing lactic acid bacteria were isolated from 34 samples of dairy products. Nine bacteriocin producers were phenotypically and genotypically identified as Enterococcus faecium. By means of PCR‐techniques, enterocin A was characterised in all of the nine bacteriocin‐producing Enterococcus isolates. Enterocin‐producing lactic acid bacteria were the most abundant in dairy products collected from different areas in Iran. Maximum bacteriocin production by Enterococcus faecium strains was detected in the stationary phase of growth. Bacteriocins produced by all isolates were found to have anti‐listerial activity in sterile milk. The purified bacteriocins were identified as <6.5 kDa peptide by sodium dodecyl sulphate‐polyacrylamide gel (SDS‐PAGE). The molecular weights of bacteriocins were found to be the same in all strains. This bacteriocin might be useful as a natural preservative.
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Bacteriocins are peptides with antimicrobial activity, synthesized by bacteria in ribosomes; these peptides often exhibit a narrow inhibitory spectrum and inhibit taxonomically-close bacteria.
“Bacteriocins are peptides with antimicrobial activity, synthesized by bacteria in ribosomes. These peptides often exhibit a narrow inhibitory spectrum and inhibit taxonomically-close bacteria [143,183,184,185].”
From Lactic Acid Bacteria in Raw-Milk Cheeses: From Starter Cultures to Probiotic Functions (2022) · cites this paper as [184]
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- Authors
- MIRHOSSEINI, M., NAHVI, I., EMTIAZI, G., & TAVASSOLI, M.
- Affiliations
- Payame Noor University (IR)
- University of Isfahan (IR)
- Corresponding author
- MIRHOSSEINI, MAHBOUBEH
- Venue
- International Journal of Dairy Technology
- Publisher
- Wiley
- Published
- 2010-01-19
- Volume
- 63
- Issue
- 1
- Pages
- 55-61
- ISSN
- 1364-727X (ISSN-L)
- 1471-0307
- OpenAlex
- W2147641135
- Cited by
- 15
- References
- 25
- Citations by year
- 2025: 1 · 2024: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2017: 1 · 2016: 1 · 2014: 2 · 2013: 2 · 2012: 1
- FWCI
- 1.06
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Dairy Technology (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
- Keywords
- Enterococcus faecium, bacteriocins, enterocin A, anti-Listeria activity, Listeria monocytogenes, dairy products, lactic acid bacteria, bacteriocin production, natural preservatives
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