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Related Concept Videos

Biofilms01:29

Biofilms

750
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
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Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

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Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
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Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

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Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
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Biofilms in the Spotlight: Detection, Quantification, and Removal Methods.

Fabián González-Rivas1, Carolina Ripolles-Avila2, Fabio Fontecha-Umaña2

  • 1Faculty of Health Sciences at Manresa, Univ. of Vic - Central Univ. of Catalonia, Manresa, Spain.

Comprehensive Reviews in Food Science and Food Safety
|December 22, 2020
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Summary
This summary is machine-generated.

Microbial biofilms in food processing pose significant contamination risks. This review details biofilm formation factors, quorum sensing, and strategies for detecting and removing these resilient microbial communities to ensure food safety.

Keywords:
bacterial adhesionbiofilmscontrol strategiesfood industryquorum sensing

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Area of Science:

  • Food Microbiology
  • Microbial Ecology
  • Food Safety Science

Background:

  • Microorganisms form biofilms on surfaces, offering protection and increased resistance compared to free-living planktonic cells.
  • Biofilms in the food industry are a major concern due to their role in microbial contamination and foodborne disease transmission.
  • Effective hygiene and control strategies are crucial for safe food production and extended shelf-life.

Purpose of the Study:

  • To review the significance of microbial biofilms in the food industry.
  • To describe factors influencing biofilm formation and the role of quorum sensing.
  • To discuss current methods for detecting, quantifying, and removing pathogenic biofilms in food processing.

Main Methods:

  • Literature review focusing on biofilm formation, quorum sensing, and control strategies.
  • Analysis of factors promoting microbial colonization and resistance.
  • Examination of recent advancements in biofilm detection, quantification, and removal techniques.

Main Results:

  • Biofilm formation is influenced by surface properties, nutrient availability, and microbial signaling (quorum sensing).
  • Quorum sensing plays a critical role in coordinating biofilm development and pathogenicity.
  • Various strategies exist for biofilm management, though challenges remain due to microbial community complexity.

Conclusions:

  • Understanding biofilm dynamics is essential for mitigating risks in food processing environments.
  • Targeting quorum sensing and employing advanced detection/removal methods can enhance food safety.
  • Continued research into complex microbial communities within biofilms is necessary for effective control.