Inhibition of Streptococcus gordonii Metabolic Activity in Biofilm by Cranberry Juice High-Molecular-Weight Component

Figure 3

Effect of cranberry NDM treatment of S. gordonii on metabolic activity of biofilm formed on titanium and polystyrene surfaces. Bacteria treated with cranberry NDM for 4 hours were added to the titanium discs and in parallel to polystyrene 24- well culture dish. The metabolic activity of adherent bacteria was determined by XTT assay. Total biomass of biofilm bacteria was not significantly affected by none of the indicated NDM concentrations as determined by crystal violet assay (data not shown).