Effect of oregano essential oil on biofilms formed by staphylococci and Escherichia coli.

Summary In the present study, it was aimed to investigate the effect of oregano (Origanum onites) essential oil (EO) on biofilm formation and established biofilm. Staphylococcus aureus (n=6), Staphylococcus lugdunensis (n=1), Staphylococcus haemolyticus (n=1), Staphylococcus sciuri (n=1) and Escherichia coli (n=1) were used as the test organisms. The crystal violet assay was used for assessing the growth of the biofilm on 96-well polystyrene...