title: Isolation, characterization, and determination of a new compound in red wine.
abstract: Chromatographic separation using fluorescence as a detection mode revealed, besides a series of flavan-3-ols, the recurrent presence of an undefined compound in Bordeaux red wine. Its isolation and structure characterization by complementary means (high-resolution mass spectrometry, nuclear magnetic resonance, and chemical synthesis) has permitted us to identify it as the nitrogen-containing glycoconjugate 3-indolyl-(2R)-O-β-D-glucosyl-lactic acid. Its quantification was performed for different wines of different vine varieties and terroirs with the aim to assess whether this compound may be used as a terroir, variety, or wine process tag.
authors.affiliation: Institut des Sciences Moléculaires, UMR 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France.
authors.forename: Sandy
authors.initials: S
authors.lastname: Fabre
authors.forename: Christelle
authors.initials: C
authors.lastname: Absalon
authors.forename: Noël
authors.initials: N
authors.lastname: Pinaud
authors.forename: Christiane
authors.initials: C
authors.lastname: Venencie
authors.forename: Pierre-Louis
authors.initials: PL
authors.lastname: Teissedre
authors.forename: Eric
authors.initials: E
authors.lastname: Fouquet
authors.forename: Isabelle
authors.initials: I
authors.lastname: Pianet
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D007211:Indoles / Q000737:chemistry* / Q000302:isolation & purification; D007773:Lactates / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D014920:Wine / Q000032:analysis*
chemical_list: D005960:Glucosides; D007211:Indoles; D007773:Lactates