Growth Media Affect Assessment of Antimicrobial Activity of Plant-Derived Polyphenols

Figure 1

The effects of different growth media on the antimicrobial efficacy of test compounds against selected oral microorganisms. The vertical lines represent the range of the fold change in MIC (complex medium versus CDM). Square dots represent the median fold change in MIC. The antimicrobial efficacy of EGCG and grape seed extract (GSE) was significantly reduced in complex medium, while the efficacy of berberine chloride (BBr), methyl salicylate (MS), and chlorhexidine gluconate (CHX) was not significantly influenced by the growth medium.