title: Isolation and structural characterization of anthocyanin-furfuryl pigments.
abstract: Condensation reactions of malvidin-3-glucoside with two representative oak wood furanic aldehydes (furfural and methylfurfural) were conducted in wine-like model solutions. Methylfurfural led to the formation of malvidin-3-glucoside-methylfurfural (603 m/z), whereas furfural led to the formation of malvidin-3-glucoside-furfural (589 m/z). The latter was structurally characterized by 1D and 2D NMR, allowing an elucidation of the formation mechanism of these anthocyanin-furanic aldehyde adducts in the absence of flavanols.
authors.affiliation: Departamento de Química, Faculdade de Ciências, Universidade do Porto, Centro de Investigação em Química, Porto, Portugal.
authors.forename: André
authors.initials: A
authors.lastname: Sousa
authors.forename: Nuno
authors.initials: N
authors.lastname: Mateus
authors.forename: Artur Manuel Soares
authors.initials: AM
authors.lastname: Silva
authors.forename: Nicolas
authors.initials: N
authors.lastname: Vivas
authors.forename: Marie-Françoise
authors.initials: MF
authors.lastname: Nonier
authors.forename: Isabelle
authors.initials: I
authors.lastname: Pianet
authors.forename: Victor
authors.initials: V
authors.lastname: de Freitas
mesh_terms: D000872:Anthocyanins / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D010860:Pigments, Biological / Q000032:analysis*; D021241:Spectrometry, Mass, Electrospray Ionization; D014920:Wine / Q000032:analysis
chemical_list: D000872:Anthocyanins; D010860:Pigments, Biological