A macrocyclic anthocyanin from red/mauve carnation flowers
1998
Bloor, S.J.
Flowers of the red/mauve carnation cultivars "Kortina Chanel" and "Purple Torres" contain a unique macrocyclic anthocyanin pigment, a malylated cyanidin 3,5-diglucoside in which the malyl group is linked to both sugars. The native anthocyanin readily undergoes ring opening to yield cyanidin 3-O-(6-O-malyl glucoside)-5-O-glucoside. This lability was found to be due to the inherent instability of the malyl interglycosidic bridge. In this paper we report the structure elucidation of the native anthocyanin, and the ring opened product.
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