Standardization of Tragopogon graminifolius DC. Extract Based on Phenolic Compounds and Antioxidant Activity

Figure 1

HPLC chromatogram of phenolic compounds from T. graminifolius 70% ethanolic extract of aerial part (a) and standard phenolic compounds mixture (b). Chromatogram identification: (1) gallic acid; (2) catechin; (3) caffeic acid; (4) ρ-coumaric acid; (5) ferulic acid.

(a)

(b)