Achyranthes aspera stem and/or leaf and/or root extract and extraction method and application thereof

The invention discloses achyranthes aspera stem and/or leaf and/or root extract and an extraction method and application thereof, and belongs to the field of medical technologies. Achyranthes aspera polysaccharide is obtained by extracting the achyranthes aspera stem and/or leaf and/or root, the molecular weight range is 0.5-3kD, a structural unit comprises glucose, galactose and galacturonic acid, and the monosaccharide molar ratio is (10-30):1(2.5-4). The achyranthes aspera stem and/or leaf and/or root are/is mainly developed, cost is low, waste is turned into wealth, the extract has remarkable social value and market value and good development and application prospects, the achyranthes aspera stem and/or leaf and/or root polysaccharide extract has a remarkable inhibiting effect on tumors and the function of boosting immunity and can be used for preparing antineoplastic drugs and healthcare products for boosting immunity. 本发明公开了种云牛膝茎和/或叶和/或根的提取物及其提取方法和应用，属于医药技术领域。本发明的云牛膝多糖从云牛膝的茎和/或叶和/或根中提取得到，分子量范围为0.5～3kD，结