Biofilm Formation of Escherichia coli O111 on Food Contact Glass Surfaces

A biofilm can be defined as a sessile bacterial community of cells that live attached to each other and to surfaces. Attachment and biofilm formation by food-borne pathogens and spoilage microorganisms on food contact surfaces in processing plants are a public health and cross-contamination concern. Biofilm formation by Escherichia coli O111 on commonly used food contact glass surfaces were studied. For this study 12 glass chips(food grade) were used. E. coli strain was added to the beakers with Tryptic Soya Broth and the samples. Escherichia coli Om formed biofilm with a mean cell density of 5.03 ± 0.14 log CFU/cm2 on glass surfaces. Based on these results , it can be concluded that Escherichia coli Om can survive on food contact glass surfaces forming biofilm . This is the first report ,as far as we are aware, of biofilm formation by Escherichia coli Om on food contact glass surfaces. We were unable to find reports in our search of the literature.