3-Methylbutanoyl and 3-methylbut-2-enoyl disaccharides from green coffee beans (Coffea arabica).
Three 3-methylbutanoyl and 3-methylbut-2-enoyl disaccharides isolated from green coffee beans (Coffea arabica) were identified as 3-methylbutanoyl-1-O-beta-D-glucopyranosyl-beta-D-apiofuranoside, 3-methylbutanoyl-6-O-alpha-D-glucopyranosyl-beta-D-fructofuranoside, and 3-methylbut-2-enoyl-1-O-beta-D-glucopyranosyl-beta-D-apiofuranoside. The structures were established by one- and two-dimensional 1H and 13C NMR spectra as well as by ESI MS/MS spectra.
Weckerle
Bernhard
B
Lehrstuhl für Lebensmittelchemie, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
Gáti
Tamás
T
Tóth
Gábor
G
Schreier
Peter
P
D000215:Acylation; D002845:Chromatography / Q000379:methods; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D040503:Coffea / Q000737:chemistry*; D004187:Disaccharides / Q000737:chemistry* / Q000302:isolation & purification; D005002:Ethiopia; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods; D000442:Octanols / Q000737:chemistry; D000439:Pentanols / Q000737:chemistry*; D010936:Plant Extracts; D021241:Spectrometry, Mass, Electrospray Ionization; D013057:Spectrum Analysis
D004187:Disaccharides; D000442:Octanols; D000439:Pentanols; D010936:Plant Extracts