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Related Concept Videos

Biofilms01:29

Biofilms

60
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

144
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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Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

49
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
49
Methods for Controlling Microbial Growth01:29

Methods for Controlling Microbial Growth

169
Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
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Related Experiment Video

Updated: Jul 25, 2025

A Platform of Anti-biofilm Assays Suited to the Exploration of Natural Compound Libraries
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Development and Control of Biofilms: Novel Strategies Using Natural Antimicrobials.

Sheetal Jha1, Sanjeev Anand1

  • 1Dairy and Food Science Department, South Dakota State University, Brookings, SD 57007, USA.

Membranes
|June 27, 2023
PubMed
Summary

Novel strategies combat membrane biofilms in food processing. Microbial antimicrobials and quorum interruption offer promising solutions for effective sanitation and preventing resistant strain development.

Keywords:
antimicrobialbiofilmseparation membrane

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Area of Science:

  • Food science and technology
  • Microbiology
  • Biotechnology

Background:

  • Separation membranes are crucial in the food industry for processes like milk fractionation and wastewater treatment.
  • These membranes are prone to bacterial colonization and biofilm formation, leading to fouling and reduced cleaning efficiency.
  • Existing cleaning protocols struggle with heavy fouling over extended use.

Purpose of the Study:

  • To review novel strategies for controlling membrane biofilms in the food industry.
  • To explore enzyme-based cleaners, microbial antimicrobials, and quorum interruption for biofilm management.
  • To discuss the emergence of resistant strains and the role of antimicrobial peptides.

Main Methods:

  • Literature review of current and emerging biofilm control strategies.
  • Analysis of factors contributing to resistant strain predominance.
  • Evaluation of naturally produced antimicrobials as potential bio-sanitizers.

Main Results:

  • Biofilm formation on membranes is a significant challenge in food processing.
  • Novel approaches like enzyme cleaners and quorum interruption show potential for biofilm control.
  • Microbial-derived antimicrobials offer a promising avenue, especially against resistant strains.

Conclusions:

  • Developing bio-sanitizers with microbial antimicrobials can effectively combat resistant biofilms.
  • Understanding membrane microflora and resistance mechanisms is key to effective sanitation.
  • Alternative strategies are needed to overcome the limitations of conventional cleaning methods.