It has a highly branched structure with a -(1-
4)-xylopyranose backbone and with -l-arabinofuranose residues
as side chains on both primary and secondary hydroxyl groups
(Saulnier, Vigouroux, & Thibault, 1995). d-glucuronic acid residues
are linked to the O-2 position of the xylose residue of the main
bone (Montgomery & Smith, 1957) and galactose and some xylose
residues attached to the arabinofuranosyl branches (