TY - JOUR
T1 - Complexation of a fluorescent anthocyanin with purines and polyphenols
AU - Wigand, Marie Claude
AU - Dangles, Olivier
AU - Brouillard, Raymond
PY - 1992/12
Y1 - 1992/12
N2 - It is demonstrated that the synthetic anthocyanin 7-hydroxy-3,4′-dimethoxyflavylium chloride associates with copigments in a manner which mimics that of natural anthocyanins. When studying copigmentation, 7-hydroxy-3,4′-dimethoxyflavylium chloride offers several advantages over its natural homologues. Firstly, it is easy to prepare pure. Secondly, its unexpected strong fluorescence opens up a new field in copigmentation studies. Finally, being sufficiently water-soluble, its complexation can also be investigated by means of 1H NMR spectroscopy. Copigments investigated are: chlorogenic acid, gallic acid, caffeine, adenosine 5′-monophosphate and adenosine 5′-triphosphate.
AB - It is demonstrated that the synthetic anthocyanin 7-hydroxy-3,4′-dimethoxyflavylium chloride associates with copigments in a manner which mimics that of natural anthocyanins. When studying copigmentation, 7-hydroxy-3,4′-dimethoxyflavylium chloride offers several advantages over its natural homologues. Firstly, it is easy to prepare pure. Secondly, its unexpected strong fluorescence opens up a new field in copigmentation studies. Finally, being sufficiently water-soluble, its complexation can also be investigated by means of 1H NMR spectroscopy. Copigments investigated are: chlorogenic acid, gallic acid, caffeine, adenosine 5′-monophosphate and adenosine 5′-triphosphate.
KW - Anthocyanin complexation
KW - polyphenols
KW - purines
KW - UV-visible, fluorescence and H NMR spectroscopy.
UR - https://www.scopus.com/pages/publications/0346538600
U2 - 10.1016/0031-9422(92)80466-R
DO - 10.1016/0031-9422(92)80466-R
M3 - Article
AN - SCOPUS:0346538600
SN - 0031-9422
VL - 31
SP - 4317
EP - 4324
JO - Phytochemistry
JF - Phytochemistry
IS - 12
ER -