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Biofilms in food processing environments

A C Wong1

  • 1Department of Food Microbiology and Toxicology, University of Wisconsin, Madison, USA.

Journal of Dairy Science
|November 13, 1998
PubMed
Summary
This summary is machine-generated.

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This research explores bacterial biofilms in food processing, focusing on Listeria monocytogenes survival and Lactobacillus curvatus in cheese. Understanding surface interactions is key to preventing and removing these problematic biofilms.

Area of Science:

  • Food Microbiology
  • Surface Science
  • Biotechnology

Background:

  • Biofilms pose significant challenges in food processing environments.
  • Controlling bacterial attachment and biofilm formation is crucial for food safety.
  • This study investigates three distinct areas of biofilm research relevant to food production.

Purpose of the Study:

  • To understand factors influencing bacterial attachment and biofilm formation.
  • To develop effective strategies for controlling biofilms in food processing.
  • To examine specific bacterial interactions with food processing materials and equipment.

Main Methods:

  • Assessing survival of Listeria monocytogenes on stainless steel and buna-n rubber under various conditions.
  • Investigating the impact of surface components and sanitizers on biofilm inactivation.

Related Experiment Videos

  • Analyzing the efficacy of mechanical, thermal, and chemical processes in clean-in-place systems for milking equipment.

    • Main Results:

    • Listeria monocytogenes exhibited prolonged survival on common food processing materials, influenced by temperature, humidity, surface, and soil.
    • Certain rubber components inhibited bacterial growth and affected sanitizer efficacy against biofilms.
    • Lactobacillus curvatus biofilms contributed to defects in Cheddar cheese, proving difficult to eradicate from equipment.

    Conclusions:

    • Bacterial biofilms present persistent challenges in food processing.
    • Effective biofilm control requires understanding specific interactions between bacteria, surfaces, and environmental factors.
    • Tailored strategies are needed for biofilm prevention and removal in diverse food processing settings.