Formation of food and bacterial deposits on surfaces (structure, cohesion, kinetics). Consequences in terms of surface hygiene

Context

A biofilm is a community of microorganisms (here colonies of bacteria) secreting a matrix ("tissue") that allows them to adhere to each other and to a surface, thus forming a film. In the industry, these biofilms are particularly found in areas of materials and equipment that are difficult to clean.

Objective

Quantifying the interactions that encourage or discourage bacterial development within biofilms and to research the consequences in terms of surface hygiene.

They funded the project

About the project

The project is divided into two approaches:

1/ Involvement of non-pathogenic bacteria in pathogenic biofilms (Listeria monocytogenes and Bacillus cereus) and consequences on the cohesion and resistance to cleaning of these mixed biofilms. Indeed, the presence of non-pathogenic bacteria may imply less room for the proliferation of pathogenic bacteria.

2/ On closed surfaces (pipes): influence of flow conditions, physico-chemical (cleaning agents) and interface properties on the adhesion and cohesion of food deposits in equipment walls.

1 500 000 € OVERALL BUDGET
2009 LABELLING YEAR

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