Cited by 601Probiotics and Fermented FoodsEssential Oils and Antimicrobial ActivityListeria monocytogenes in Food Safety

Application of bacteriocins and protective cultures in dairy food preservation

Open access
Silva, Célia C. G., Silva, Sofia P. M., Ribeiro, Susana C.·2018·Frontiers in Microbiology

Abstract

In the last years, consumers are becoming increasingly aware of the human health risk posed by the use of chemical preservatives in foods. In contrast, the increasing demand by the dairy industry to extend shelf-life and prevent spoilage of dairy products has appeal for new preservatives and new methods of conservation. Bacteriocins are antimicrobial peptides, which can be considered as safe since they can be easily degraded by proteolytic enzymes of the mammalian gastrointestinal tract. Also, most bacteriocin producers belong to lactic acid bacteria (LAB), a group that occurs naturally in foods and have a long history of safe use in dairy industry. Since they pose no health risk concerns, bacteriocins, either purified or excreted by bacteriocin producing strains, are a great alternative to the use of chemical preservatives in dairy products. Bacteriocins can be applied to dairy foods on a purified/crude form or as a bacteriocin-producing LAB as a part of fermentation process or as adjuvant culture. A number of applications of bacteriocins and bacteriocin-producing LAB have been reported to successful control pathogens in milk, yogurt, and cheeses. One of the more recent trends consists in the incorporation of bacteriocins, directly as purified or semi-purified form or in incorporation of bacteriocin-producing LAB into bioactive films and coatings, applied directly onto the food surfaces and packaging. This review is focused on recent developments and applications of bacteriocins and bacteriocin-producing LAB for reducing the microbiological spoilage and improve safety of dairy products.

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Crossref · 10.3389/fmicb.2018.00594

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  • Enterocins are more effective than nisin in inhibiting L. monocytogenes.

    “Other bacteriocins, such as enterocins, have been shown to be more effective than nisin in inhibiting L. monocytogenes [194].”

    From Lactic Acid Bacteria in Raw-Milk Cheeses: From Starter Cultures to Probiotic Functions (2022) · cites this paper as [194]

    The Enterocins section reports that enterocins inhibit L. monocytogenes, but does not say they are more effective than nisin. The explicit comparison with nisin appears in the Pediocins section and concerns pediocins, not enterocins (page numbers unavailable). (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Nisin cannot be used in foods with neutral or alkaline pH, or in foods that require LAB for fermentation.

    “However, the efficacy of nisin has some limitations, since it cannot be used in foods with neutral or alkaline pH, or in foods that require LAB for fermentation [194].”

    From Lactic Acid Bacteria in Raw-Milk Cheeses: From Starter Cultures to Probiotic Functions (2022) · cites this paper as [194]

    The Nisin section says application in dairy products is limited to pH values below 7 because activity greatly declines at higher pH. It also says nisin inhibits LAB, creating a great limitation for dairy foods requiring LAB fermentation. Calling this an absolute inability to use nisin in such foods overstates the source. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Bacteriocins are sensitive to digestive proteases such as pancreatin, trypsin, and chymotrypsin.

    “In addition, bacteriocins are sensitive to digestive proteases such as pancreatin, trypsin, and chymotrypsin, and therefore have no negative effects on the gut microbiota [194].”

    From Lactic Acid Bacteria in Raw-Milk Cheeses: From Starter Cultures to Probiotic Functions (2022) · cites this paper as [194]

    The “Bacteriocins Produced by Lab” section says that LAB bacteriocins are sensitive to pancreatin complex, trypsin, and chymotrypsin. The citing sentence makes the claim about bacteriocins generally, while the passage specifies those produced by lactic acid bacteria. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Bacteriocins have no negative effects on the gut microbiota because they are sensitive to digestive proteases.

    “In addition, bacteriocins are sensitive to digestive proteases such as pancreatin, trypsin, and chymotrypsin, and therefore have no negative effects on the gut microbiota [194].”
  • Bacteriocins produced by LAB are often active over a wide pH range, resist high temperatures, and inhibit the growth of a variety of food spoilage and pathogenic bacteria.

    “Bacteriocins produced by LAB are often active over a wide pH range, resist high temperatures, and inhibit the growth of a variety of food spoilage and pathogenic bacteria.”

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Authors
Silva, C. C. G., Silva, S. P. M., & Ribeiro, S. C.
Affiliations
Universidade dos Açores (PT)
Corresponding author
Silva, Célia C. G.
Venue
Frontiers in Microbiology
Published
2018-04-09
Volume
9
Pages
594-594
ISSN
1664-302X (ISSN-L)
OpenAlex
W2797148322
Cited by
601
References
155
Citations by year
2026: 64 · 2025: 77 · 2024: 81 · 2023: 77 · 2022: 80 · 2021: 86 · 2020: 89 · 2019: 32 · 2018: 15
FWCI
5.63
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Microbiology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Fundo Regional para a Ciência e Tecnologia (M3.1.2/F/011/ 2011)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
Keywords
bacteriocins, bacteriocin-producing lactic acid bacteria, dairy product preservation, natural food preservatives, chemical preservative alternatives, dairy spoilage, pathogen control, yogurt, cheese, milk, shelf life extension, food safety

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