Anthocyanins from cell suspension cultures of Daucus carota.

Six anthocyanins were isolated from cell suspension cultures of an Afghan cultivar of Daucus carota by PC or HPLC. The structures of these compounds were elucidated by spectroscopic methods as cyanidin 3-O-lathyroside, cyanidin 3-O-(2''-O-beta-D-xylopyranosyl-6''-O-beta-D-glucopyranosyl-beta-D- galactopyranoside), and the latter acylated with 4-coumaric, ferulic, 4-hydroxybenzoic or sinapic acid. Unusual 1H NMR chemical shifts and 1H NOE data indicate an intramolecular copigmentation of the aglycone with these aromatic residues.

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