title: Identification and characterization of complex bioactive oligosaccharides in white and red wine by a combination of mass spectrometry and gas chromatography.
abstract: Over forty-five complex free oligosaccharides (of which several are novel) have been isolated and chemically characterized by gas chromatography and high resolution and high mass accuracy matrix-assisted laser desorption/ionization mass spectrometry (MALDI-FTICR MS) in red and white wines, Grignolino and Chardonnay, respectively. Oligosaccharides with a degree of polymerization between 3 and 14 were separated from simple monosaccharides and disaccharides by solid-phase extraction. The concentrations of free oligosaccharides were over 100 mg/L in both red and white wines. The free oligosaccharides-characterized for the first time in the present study-include hexose-oligosaccharides, xyloglucans, and arabinogalactans and may be the natural byproduct of the degradation of cell wall polysaccharides. The coupled gas chromatography and accurate mass spectrometry approach revealed an effective method to characterize and quantify complex functional oligosaccharides in both red and white wine.
authors.affiliation: Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale A. Avogadro, Novara, Italy. matteo.bordiga@pharm.unipmn.it
authors.forename: Matteo
authors.initials: M
authors.lastname: Bordiga
authors.forename: Fabiano
authors.initials: F
authors.lastname: Travaglia
authors.forename: Mickael
authors.initials: M
authors.lastname: Meyrand
authors.forename: J Bruce
authors.initials: JB
authors.lastname: German
authors.forename: Carlito B
authors.initials: CB
authors.lastname: Lebrilla
authors.forename: Jean Daniel
authors.initials: JD
authors.lastname: Coïsson
authors.forename: Marco
authors.initials: M
authors.lastname: Arlorio
authors.forename: Daniela
authors.initials: D
authors.lastname: Barile
mesh_terms: D002849:Chromatography, Gas; D005583:Fourier Analysis; D013058:Mass Spectrometry; D009844:Oligosaccharides / Q000032:analysis*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014920:Wine / Q000032:analysis*
chemical_list: D009844:Oligosaccharides