4.7 Review

Combating biofilms of foodborne pathogens with bacteriocins by lactic acid bacteria in the food industry

期刊

出版社

WILEY
DOI: 10.1111/1541-4337.12922

关键词

bacteriocin; biofilms; foodborne pathogens; lactic acid bacteria

资金

  1. National Natural Science Foundation of China [32102108]
  2. Natural Science Foundation of the Higher Education Institutions of Jiangsu Province
  3. Jiangsu Agricultural Science and Technology Innovation Fund [CX(21)3051]

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Studies have shown that LAB bacteriocins can effectively inhibit the formation of foodborne bacterial biofilms on food contact surfaces, but have difficulty in eradicating preformed biofilms. Their antibiofilm activity can be strengthened through synergistic combination with other antimicrobials, incorporation in nanoconjugates, and implementation of bioengineering.
Most foodborne pathogens have biofilm-forming capacity and prefer to grow in the form of biofilms. Presence of biofilms on food contact surfaces can lead to persistence of pathogens and the recurrent cross-contamination of food products, resulting in serious problems associated with food safety and economic losses. Resistance of biofilm cells to conventional sanitizers urges the development of natural alternatives to effectively inhibit biofilm formation and eradicate preformed biofilms. Lactic acid bacteria (LAB) produce bacteriocins which are ribosomally synthesized antimicrobial peptides, providing a great source of nature antimicrobials with the advantages of green and safe properties. Studies on biofilm control by newly identified bacteriocins are increasing, targeting primarily onListeria monocytogenes, Staphylococcus aureus, Salmonella, and Escherichia coli. This review systematically complies and assesses the antibiofilm property of LAB bacteriocins in controlling foodborne bacterial-biofilms on food contact surfaces. The bacteriocin-producing LAB genera/species, test method (inhibition and eradication), activity spectrum and surfaces are discussed, and the antibiofilm mechanisms are also argued. The findings indicate that bacteriocins can effectively inhibit biofilm formation in a dose-dependent manner, but are difficult to disrupt preformed biofilms. Synergistic combination with other antimicrobials, incorporation in nanoconjugates and implementation of bioengineering can help to strengthen their antibiofilm activity. This review provides an overview of the potential and application of LAB bacteriocins in combating bacterial biofilms in food processing environments, assisting in the development and widespread use of bacteriocin as a promising antibiofilm-agent in food industries.

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