Novel pectic polysaccharide purified from Angelica gigas nakai, its purification method and its use as immunostimulant

摘要

An acidic polysaccharide isolated from aqueous extracts of Angelica gigas Nakai roots is disclosed. The compound has both immunostimulatory and anti-neoplastic activity. The compound is comprised primarily of galacturonic acid, arabinose and galactose along with traces of xylose, rhamnose amd mannose. The molecular weight of the compound is about 10,000 Daltons.