Structural characterization of homogalacturonan by NMR spectroscopy-assignment of reference compounds

Complete assignment of H-1 and C-13 NMR of six hexagalactopyranuronic acids with varying degree and pattern of methyl esterification is reported. The NMR experiments were run at room temperature using approximately 2 mg of sample making this method convenient for studying the structure of homogalacturonan oligosaccharides. (C) 2008 Elsevier Ltd. All rights reserved.