Covalent anthocyanin-flavonol complexes from the violet-blue flowers of Allium 'Blue Perfume'
Keywords: Allium 'Blue Perfume'; Alliaceae; Delphinidin 3-glucoside kaempferol 3-glycoside-7-glucosiduronic acids and malonic acid; Anthocyanin and flavonols disubstitute malonate; Intramolecular copigmentation; Flower color;