Major anthocyanins from purple asparagus (Asparagus officinalis)

Anthocyanins from the spears of purple asparagus (Asparagus officinalis) were isolated and identified as cyanidin 3-[3″-(O-β-d-glucopyranosyl)-6″-(O-α-l-rhamnopyranosyl)-O-β-d-glucopyranoside] and cyanidin 3-rutinoside, respectively. ORAC assays suggest that they have high antioxidant activities.