Fig. 2

HPLC profiles of the studied H. capitatum extracts. Standards: 1 – chlorogenic acid, 2 – p-coumaric acid, 3 – caffeic acid, 4 – rutin, 5- isoquercitrin, 6 – quercitrin, 7 – quercetin, 8 – apigenin, 9 – kaempferol, 10 – chrysin, 11 – hyperforin, 11 – hypericin. By far, the highest chromatographic peak is rutin which accounts more than 70% peak area, in all cases. The y axis is rescaled and adapted for clarity