Analysis of antioxidative phenolic compounds in artichoke (Cynara scolymus L.)

摘要: Artichoke leaf is an herbal medicine known for a long time. A systematic antioxidant activity-directed fractionation procedure was used to purify antioxidative components from the aqueous methanol extractions of artichoke heads and leaves in this study. Seven active polyphenolic compounds were purified artichoke, structural elucidation each achieved using MS NMR. Two these compounds, apigenin-7-rutinoside narirutin, found be unique heads, represents first report edible portion plant. The contents antioxidants total phenols dried samples immature mature three varieties, Imperial Star, Green Globe, Violet, then analyzed compared by colorimetric validated HPLC methods. Significant differences variety plant organ observed.