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从废弃黄芪残渣中可提取约25％的水溶性黄芪多糖FH。经苯酚一硫酸法分析，总糖含量为37％；经纸层析、气相色谱分析、多糖FH的单糖组成为Ara，Fuc，Man，Gal和Glc，各单糖的摩尔比依次为1．77：1．72：1：2．63：41．2。
Approximately 25% of the water-soluble astragalus polysaccharide FH can be extracted from the waste jaundice residue. By phenol-sulfate method analysis, the total sugar content was 37%; by paper chromatography, gas chromatography analysis, the monosaccharide composition of polysaccharide FH Ara, Fuc, Man, Gal and Glc, the molar ratio of each monosaccharide was 1. 77:1.72:1:2.63:41.2.