title: [Research on the quality changes in pre-and-post-processed pieces of Radix Polygalae].
abstract: OBJECTIVE
  To study the quality changes in pre-and-post-processed pieces of Radix Polygalae.
  
  
  METHODS
  The changes of the content of senegenin and polygalacic acid were studied.
  
  
  RESULTS
  The content of polygalacic acid in post-processed piece was lower than that in pre-processed piece. The content of senegenin had no obvious difference.
  
  
  CONCLUSIONS
  The processing can make the quality change.
authors.affiliation: Nanyang Institute for Drug Control, Nanyang 473000, China. fxdem123@yahoo.com.cn
authors.forename: Xiang-Dong
authors.initials: XD
authors.lastname: Feng
authors.forename: Guang-Wei
authors.initials: GW
authors.lastname: Gao
authors.forename: Hai-Xin
authors.initials: HX
authors.lastname: Huang
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D031801:Polygala / Q000737:chemistry*; D011786:Quality Control; D012502:Sapogenins / Q000032:analysis*; D012503:Saponins / Q000032:analysis*; D013678:Technology, Pharmaceutical / Q000379:methods
chemical_list: D004365:Drugs, Chinese Herbal; D012502:Sapogenins; D012503:Saponins; C067722:polygalacic acid; D009828:Oleanolic Acid