STUDIES ON THE STABILITY AND CONFORMATION OF MONOACYLATED ANTHOCYANINS PART 2 - ANTHOCYANINS FROM WILD CARROT SUSPENSION-CULTURES ACYLATED WITH SUPPLIED CARBOXYLIC-ACIDS
Dk. Dougall et al., STUDIES ON THE STABILITY AND CONFORMATION OF MONOACYLATED ANTHOCYANINS PART 2 - ANTHOCYANINS FROM WILD CARROT SUSPENSION-CULTURES ACYLATED WITH SUPPLIED CARBOXYLIC-ACIDS, Carbohydrate research, 310(3), 1998, pp. 177-189
The anthocyanins accumulated by carrot cell cultures include some that
are acylated. Addition of cinnamic and benzoic acid analogues to the
culture medium resulted in the production of fourteen novel monoacylat
ed anthocyanins. Four additional anthocyanins were prepared by partial
acid hydrolysis, which selectively removed the xylose side chain from
the branched trisaccharide part of the molecule. The carrot cells acc
ommodate a wide range of carboxylic acids used to acylate anthocyanins
and provide a system for the preparation of anthocyanins that have a
variety of acyl groups attached. The compounds were characterized by H
-1 NMR spectroscopy and mass spectrometry, and by UV-vis absorption sp
ectroscopy at both pH 2 and 6. (C) 1998 Elsevier Science Ltd. All righ
ts reserved.