Resumen de Antioxidant activity of anthraquinones isolated from leaves of muehlenbeckia hastulata (j.E. Sm.) johnst. (polygonaceae)
Marco Mellado, Alejandro Madrid, Hugo Peña-cortés, Rodolfo López, Carlos Jara, Luis Espinoza
Three anthraquinones, the well known emodin (3) and physcion (6) and the new anthraquinone glycoside emodin-8־β־D-idopyranoside (7) were isolated from leaves ofMuehlenbeckia hastulata. The antioxidant activity of these compounds was measured using the DPPH assay; all three showed weaker antioxidant activity than gallic acid.
