在美国西部,蒿属植物A.tripartiteRydb.用于治疗感冒、咽喉痛、扁桃体炎、头痛和创伤,但其生物活性成分不清。从该植物叶水提取物中分离得到5个多糖部位(A-Ⅰ～A-Ⅴ),对其组成成分进行了定性、定量分析,并检测了这5个多糖部位的免疫调节活性。将该植物干燥、粉碎的叶用沸水提取 In the western United States, Artemisia A.tripartite Rydb. is used to treat colds, sore throat, tonsillitis, headaches and wounds, but its biological active ingredients are unclear. Five polysaccharide fractions (A-I-A-V) were isolated from leaf water extracts of the plant, and their components were qualitatively and quantitatively analyzed, and the immunomodulatory activities of these five polysaccharide fractions were examined. The dried, crushed leaves of the plant are extracted with boiling water