factsheet

Biofilms in the dairy industry

Project entitled:

The dairy industry invests in microbiology research to expand our understanding of the complex world of microorganisms and the role they play in our lives.

Denis Roy, Évelyne Guévremont, Gisèle LaPointe, Simon Dufour

What are biofilms?

Biofilms are communities of microorganisms multiplying and living together. Microorganisms within a biofilm secrete a matrix that is made up of polysaccharides and other very large molecules that surround and protect them. These microbial ecosystems can be made up of single or multiple species of bacteria, as well as other microorganisms such as yeast and molds.

Key Points

  • Biofilms can present a challenge for cleaning and disinfecting on dairy farms and in milk processing facilities.
  • New research is exploring the origin, structure and formation of biofilms to help inform management practices.
  • The research also aims to identify protective bacteria that can prevent biofilms from forming as a natural way to reduce milk spoilage.