title: 2,5-Dimethyl-4-hydroxy-3[2H]-furanone 6'O-malonyl-beta-D-glucopyranoside in strawberry fruits.
abstract: 2,5-Dimethyl-4-hydroxy-3[2H]-furanone 6'-O-malonyl-beta-D-glucopyranoside was isolated from a glycosidic extract of strawberry fruit (Fragaria x ananassa, cv. Senga Sengana) by means of countercurrent chromatography and reverse-phase HPLC. Identification was achieved by comparison of chromatographic and 1H, 13C and 2D-NMR, as well as mass spectral data with those of the synthesized reference compound. In ripe strawberry fruit, a 1:1 ratio of the malonylated glucoside to its deacylated glucoconjugate was determined by on-line liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry.
authors.affiliation: Lehrstuhl für Lebensmittelchemie, Universität Würzburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Roscher
authors.forename: M
authors.initials: M
authors.lastname: Herderich
authors.forename: J P
authors.initials: JP
authors.lastname: Steffen
authors.forename: P
authors.initials: P
authors.lastname: Schreier
authors.forename: W
authors.initials: W
authors.lastname: Schwab
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003377:Countercurrent Distribution; D005638:Fruit / Q000737:chemistry*; D005663:Furans; D005960:Glucosides; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry
chemical_list: D005663:Furans; D005960:Glucosides