title: [The content dynamics of glycyrrhizic acid and soluble sugar in glycyrrhizae radix et rhizoma].
abstract: OBJECTIVE
  To study the content dynamics of glycyrrhizic acid and soluble sugar in Glycyrrhizae Radix et Rhizoma.
  
  
  METHODS
  Adopted the PVP root canal and the field experiment, the active ingredient content of glycyrrhizic acid and soluble sugar 2 years old cultivated Glycyrrhiza uralensis in the samples was studied.
  
  
  RESULTS
  The content of glycyrrhizic acid was high in the root morphology of the bottom of the vertical distribution; The content of glycyrrhizic acid was decreased in the rhizome from the root to the direction away from the main root; in one year, the content of glycyrrhizic acid was varied with the Glycyrrhiza uralensis developmental stages. The accumulation peak was in early July, the peak of soluble sugar content was the period in mid-July to early August.
  
  
  CONCLUSIONS
  The optimum harvest period is the late September to early October.
authors.affiliation: Jilin Academy of Agricultural Science, Changchun 130033, China.
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Jiang
authors.forename: Bao-Min
authors.initials: BM
authors.lastname: Wang
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Fen-Tuan
authors.initials: FT
authors.lastname: Yang
authors.forename: Xi-Feng
authors.initials: XF
authors.lastname: Chen
mesh_terms: D050260:Carbohydrate Metabolism; D004797:Enzyme-Linked Immunosorbent Assay; D029882:Glycyrrhiza uralensis / Q000254:growth & development / Q000378:metabolism*; D019695:Glycyrrhizic Acid / Q000032:analysis / Q000378:metabolism*; D018517:Plant Roots / Q000254:growth & development / Q000378:metabolism; D010946:Plants, Medicinal / Q000254:growth & development / Q000378:metabolism*; D027343:Rhizome / Q000254:growth & development / Q000378:metabolism; D012621:Seasons
chemical_list: D019695:Glycyrrhizic Acid