Sugar Beet Arabinan – this is a polymer of 1,5-α-L-linked arabinofuranose units which is highly substituted by 1,3- and (1-2) linked single α-L-arabinofuranose residues. About 50% of 1,5 linked arabinosyl residues in the main chain are substituted by 1,3 or 1,2 linked arabinofuranosyl branches. Rye/Wheat Arabinoxylan – these simply are composed of 1,4-β-D-linked xylan main chains (about 500-1000 residues); substituted by α-L-arabinofuranosyl residues linked 1,3-α or 1,2-α. They differ in the extent of substitution by α-L-arabinofuranose. They also contain some ferulic acid residues (linked to arabinose).
Modified on: Tue, 22 Mar, 2016 at 12:49 PM
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