Valparaíso, Chile
Valparaíso, Chile
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.
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