Identification of phenolic compounds in the buds of Algerian Pistacia atlantica desf. Subsp. atlantica by antioxidant activity guided fractionation
Abstract Objectives A bio-guided selection and identification of the most active compounds obtained from Algerian Pistacia atlantica desf. Subsp. atlantica. Methods An antioxidant activity guided fractionation was performed on buds’ extract using extensive chromatographic and spectroscopic techniques. The antioxidant potentials of isolated compounds and other unpurified fractions were evaluated against DPPH radicals using TLC plates and test tubes. Results The results showed that all isolated compounds and fractions exhibited eminent DPPH scavenging potential. Two coumarins (7-ethoxycoumarin and 7-hydroxy-5-methoxycoumarin) and two flavonoids (3′,5,7-Trihydroxy-4′-methoxyflavanone and 5,6,7,4′-tetrahydroxyflavonol-3-O-rutinoside) were isolated for the first times from the titled subspecies. Conclusions These results confirm that the species of P. atlantica is far from being exhausted of active compounds, especially polyphenols.