Isolation and characterization of a diferuloyl arabinoxylan hexasaccharide from bamboo shoot cell-walls.
Hydrolysis of bamboo shoot cell-walls with Driselase (a fungal enzyme preparation) released a diferuloyl arabinoxylan hexasaccharide. The structure of the diferuloyl oligosaccharide was determined to be 5,5'-di-O-diferul-9,9'-dioyl)-[alpha-L-arabinofuranosyl-(1-- --3)-O-beta-D-xylopyranosyl-(1----4)-D-xylopyranose] on the basis of n.m.r. spectroscopy, methylation analysis, and fast-atom-bombardment mass spectrometry (f.a.b.-m.s.). This is the first reported evidence that arabinoxylans are covalently cross-linked via diferulic acid.
Ishii
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Forestry and Forest Products Research Institute, Ibaraki, Japan.
D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000737:chemistry*; D003373:Coumaric Acids / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D006868:Hydrolysis; D008745:Methylation; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry*; D010944:Plants / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment
D003373:Coumaric Acids; D006027:Glycosides; D009844:Oligosaccharides; C073826:5,5'-di-O-(diferul-9,9'-dioyl)arabinofuranosyl-(1-3)-xylopyranosyl-(1-4)-xylopyranose; C004999:ferulic acid