title: The use of neocarrabiose oligosaccharides with different length and sulphate substitution as model compounds for 1H-NMR spectroscopy.
abstract: The high-field 1H-NMR spectra of various carrageenan oligosaccharides at room temperature are given. The assignments were faciliated by the use of proton double-quantum coherence (DQCOSY) and 1H-13C chemical shift correlation 2D NMR spectroscopy, and by comparing high-field 1H-NMR spectra of various 4-sulphated oligosaccharides of the neocarrabiose type. The effects of anomeric configuration on the 1H resonances on the same or neighbouring units are discussed. The 13C-NMR shift data are given for the tetrasaccharide of kappa-carrageenan.
authors.affiliation: Division of Biotechnology, University of Trondheim, Norway.
authors.forename: S H
authors.initials: SH
authors.lastname: Knutsen
authors.forename: H
authors.initials: H
authors.lastname: Grasdalen
mesh_terms: D002240:Carbohydrate Sequence; D002351:Carrageenan / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry*
chemical_list: D009844:Oligosaccharides; C068279:neocarrabiose; D002351:Carrageenan