indicated that 2,3-di-O-methylarabinose (1fi5)-linked arabinose and 2,3,4-tri-O-methylmannose(1fi6)-linked mannose were major components of the backbone structure with 3 branches attached to O-3 of (1fi3)-linked glucose; all glucose and glucuronic acid were distributed in branches; and residues of branches terminated with either glucose and were composed of (1fi3)-linked glucuronic acid (1fi4)-linked mannose, and (1fi3)-linked glucose