Figure 3
From: Promotion of quality standard of herbal medicine by constituent removing and adding
HPLC chromatograms following the adding of BER or COP and results of the bioassays.
(a) HPLC profiles following BER added to the negative sample lacking constituent BER to final concentrations of 0, 15, 45, 60, 80 and 120 μg/mL. (b) HPLC profiles following COP added to the negative sample lacking constituent COP to final concentrations of 0, 8, 16, 32, 64 and 128 μg/mL. (c, d) heat flow power-time (HFP-t) curves of S. dysenteriae at 37°C exposed to R. coptidis extract or samples containing different concentrations of BER (c) or COP (d). S. dysenteriae in culture medium alone was used as the blank control. The concentration of R. coptidis extract was 200 μg/mL. The final concentrations of BER were 0, 15, 45, 60, 80 and 120 μg/mL. The final concentrations of COP were 0, 8, 16, 32, 64 and 128 μg/mL. The negative samples (BER− and COP−) were prepared by removing BER or COP from the R. coptidis extract.
