Abstract (EN):
A new catechin-pyrylium derived pigment compound was synthesised from the reaction of catechin with sinapaldehyde in acidic conditions and its structure has been characterised by UV-vis, MS and NMR spectroscopy. Similar compounds could be expected to be formed in wines and contribute to changes in colour and astringency during ageing.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Contacto:
vfreitas@fc.up.pt
Nº de páginas:
4