One of the major concerns in the field of hygiene in the food industry is the formation of bacterial biofilms. Biofilms are groups of micro-organisms that accumulate in a solid-liquid interface and are surrounded by a mucilaginous matrix. The biofilm matrix is the extracellular material, produced by micro-organisms themselves, in which are embedded the cells of the biofilm. It consists of a conglomeration of different types of biopolymers - known as Extracellular Polymeric Substances (EPS) - which form the support for the three-dimensional structure of the biofilm. The formation of biofilms allows cells a life form completely different from the planktonic state, protecting them from adverse environments and facilitating their survival.
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