title: [Dynamic changes of polysaccharides content in Salvia miltiorrhiza root from different provenances].
abstract: OBJECTIVE
  To detect the content of polysaccharides in the root of Salvia miltiorrhiza collected from different provenances, and to discover the dynamic change rules of polysaccharides at various growing stages.
  
  
  METHODS
  Polysaccharides were extracted by hot water extraction method, and the content of polysaccharides was measured by phenol-sulfuric acid.
  
  
  RESULTS
  The content of polysaccharides changed at different growing stages. The variation trend of different provenances were different, and the polysaccharides content of different provenances were different at the same growing stage. At different growing periods, the distribution of polysaccharides in the xylem and cortex of roots were different. The content of polysacchrides in the root was minimum at maturity. At harvest time, the content of polysaccharides in the root was the highest in Beijing, the second was in Jiangsu, and the lowest was in Henan.
  
  
  CONCLUSIONS
  The experiment provides theoretical basis for the selection of Salvia miltiorrhiza with the highest content of polysaccharides and the development and utilization of the polysaccharides.
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Jiang
authors.forename: Long
authors.initials: L
authors.lastname: Wang
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.forename: Meng
authors.initials: M
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Yu
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
mesh_terms: D017753:Ecosystem; D010636:Phenols; D018517:Plant Roots / Q000737:chemistry* / Q000254:growth & development; D010946:Plants, Medicinal / Q000737:chemistry* / Q000254:growth & development; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D027561:Salvia miltiorrhiza / Q000737:chemistry* / Q000254:growth & development; D012621:Seasons; D013464:Sulfuric Acids; D013997:Time Factors; D052584:Xylem / Q000737:chemistry / Q000254:growth & development
chemical_list: D010636:Phenols; D011134:Polysaccharides; D013464:Sulfuric Acids