Fig. 1.

Percentage of viable HepG2 (1) and GAS (2) cells after 24 h treatment with different concentrations of extracts (MTT assay): a B. correifolia; b B. verbascifolia; c B. fagifolia; and d B. intermedia; negative control—NC (PBS) and solvent (SV) groups. The results represent mean ± SD of independent cultures in triplicate. NC represents 100 % viability. PBS phosphate buffered saline. Values significantly differing from the negative control group by ANOVA and Tukey test: hash symbol increase and asterisk decrease