Oligosaccharides generated by partial hydrolysis of the borate-rhamnogalacturonan II complex from sugar beet.
The borate-rhamnogalacturonan II complex (B-RG-II), isolated from sugar beet (Beta vulgaris), was partially acid-hydrolyzed. The oligosaccharides generated were characterized by glycosyl-composition and glycosyl-linkage analyses, ES-mass, and NMR spectroscopy. Two disaccharides, alpha-L-Rhap-(1-->5)-D-Kdo and alpha-L-Araf-(1-->5)-Dha, an aceric acid-containing oligosaccharide, and a 2-O-Me-Xyl-containing oligosaccharide, in addition to partially methyl-esterified alpha-(1-->4)-oligogalacturonides were characterized. The data provide additional evidence that B-RG-II isolated from different plant species have identical structures.
Ishii
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Forestry and Forest Products Research Institute, Ibaraki, Japan.
Kaneko
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D001881:Borates / Q000737:chemistry* / Q000302:isolation & purification; D002240:Carbohydrate Sequence; D019663:Chenopodiaceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D008401:Gas Chromatography-Mass Spectrometry; D006868:Hydrolysis; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D009844:Oligosaccharides / Q000737:chemistry*; D010368:Pectins / Q000737:chemistry* / Q000302:isolation & purification
D001881:Borates; D009844:Oligosaccharides; C042492:rhamnogalacturonan II; D010368:Pectins