title: [Studies on polysaccharide of Cynomorium songaricum Rupr].
abstract: OBJECTIVE
  To study the acidic heteropolysac charides of Cynomorium songaricum.
  
  
  METHODS
  The polysaccharides were purified by Sephadex G-100 and G-150 gel column chromatography. Purity and molecular weight of the polysaccharides were determined by high performance gel permeation chromatography; neutral sugars composition were identified by PC, TLC and GC. Uronic acids were determined by carbazole method.
  
  
  RESULTS
  The molecular weight of SYP-A and SYP-B were estimated to be 3.1 x 10(5) and 2.8 x 10(5) respectively, and neutral sugars were composed of galactose, glucose, arabinose, rhamnose, mannose and ribose. The molar ratio for SYP-A and SYP-B were 5.1:4.1:1.6:1.0:0.5:0.3 and 5.2:4.2:1.5:1.0:0.5:0.2 respectively, The contents of uronic acids were 10.7% and 10.5% respectively.
  
  
  CONCLUSIONS
  SYP-A and SYP-B are homogeneous acidic heteropolysaccharides.
authors.affiliation: Institute of Chinese Materia, China Academy of Traditional Chinese Medicine, Beijing 100700, China.
authors.forename: S J
authors.initials: SJ
authors.lastname: Zhang
authors.forename: S Y
authors.initials: SY
authors.lastname: Zhang
authors.forename: J P
authors.initials: JP
authors.lastname: Hu
mesh_terms: D031482:Cynomorium / Q000737:chemistry*; D008970:Molecular Weight; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification*; D014574:Uronic Acids / Q000032:analysis
chemical_list: D011134:Polysaccharides; D014574:Uronic Acids