Feruloylated xyloglucan and p-coumaroyl arabinoxylan oligosaccharides from bamboo shoot cell-walls.
A novel feruloylated xyloglucan disaccharide and p-coumaroylated arabinoxylan trisaccharide were isolated from cell walls of growing bamboo (Phyllostachys edulis) shoots. On the basis of chemical and spectral data, their structures were determined to be O-(4-O-trans-feruloyl-alpha-D- xylopyranosyl)-(1----6)-D-glucopyranose and O-[5-O-(trans-p-coumaroyl)- alpha-L-arabinofuranosyl]-(1----3)-O-beta-D-xylopyranosyl-(1----4)-D- xylopyranose, respectively. This is the first reported evidence of a phenolic acid covalently associated with the cell wall hemicellulose, xyloglucan.
Forestry & Forest Products Research Institute, Ibaraki, Japan.
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T
Ishii
T
T
Hiroi
J R
JR
Thomas
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000737:chemistry; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008745:Methylation; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000302:isolation & purification*; D010944:Plants / Q000032:analysis*; D014312:Trisaccharides / Q000737:chemistry / Q000302:isolation & purification*
D004187:Disaccharides; D009844:Oligosaccharides; D014312:Trisaccharides; C066379:O-(5-O-(4-coumaroyl)-alpha-arabinofuranosyl)-(1-3)-O-beta-xylopyranosyl-(1-4)-xylopyranose; C066378:O-(4-O-feruloyl-alpha-xylopyranosyl)-(1-6)-glucopyranose