As evidenced by the results of methylation analysis, a portion of QUSDF xyloglucan,which has slightly higher galactose content than AMSDF, was substituted with a small proportion of F side chains where glucose was substituted at C-6 with a trisaccharide composed of xylose, galactose and fucose residues. In the case of AMSDF, the xyloglucans had a higher degree of branching as all xylose was present in a (1?2)-linkage (Table 2).