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Fig. 3 | AMB Express

Fig. 3

From: Evaluation of antimicrobial and cytotoxic effects of Echinacea and Arctium extracts and Zataria essential oil

Fig. 3

Cell viability after treatment with Echinacea and Arctium extracts and the formulation after 24 and 48 h. A The HDFa cells viability of Echinacea purpurea: There were no significant differences with the control group for 0.312 mg/ml concentrations and lower after 24 h (p > 0.05). This threshold for an incubation time of 48 h would be 0.625 mg/ml. B The HEK cells viability of Echinacea purpurea: There were no significant differences with the control group for the concentrations of 0.625 mg/ml and lower after 24 h (p > 0.05). This threshold for an incubation time of 48 h would be 0.156 mg/ml. C The HDFa cells viability of Arctium lappa: There were no significant differences with the control group for 1.25 mg/ml and lower after 24 h (p > 0.05). This threshold for an incubation time of 48 h would be 2.5 mg/ml. D The HEK cells viability of Arctium lappa: There were no significant differences with the control group for all tested concentrations after 24 or 48 h (p > 0.05)

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