Biological Efficacy of Essential Oils and Plant Extracts of Cultivated and Wild Ecotypes of Origanum vulgare L.

Figure 1

Inhibition of cellular tyrosinase, cell viability, ABTS, DPPH, and FRAP free radical-scavenging, and intracellular ROS activities (%). Treatments with 10 μg/ml of each compound on C6 cell line glioma-derived cell line for 72 h; cell viability was determined by the MTT assay. Each value is presented as mean ± SD from independent triplicate experiments.