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. 2014 Apr 1;9(4):e92876. doi: 10.1371/journal.pone.0092876

Figure 2. Kinetics of the killing effect of EGCg on Sm ATCC 13637 and two clinical isolates.

Figure 2

The concentrations of EGCg ranged from 0.5×MIC to 4×MIC. Bacterial viability over a 24 h period was determined by measurement of optical density (OD) at 492 nm by XTT conversion. Control samples consisted of bacterial cells grown in tryptic soy broth (TSB) in the absence of EGCg. Experiments were designed in three independent sets performed in octuplicate, and the results are expressed as means ± standard deviation (SD).