title: [Determination of main active components in crude and processed Corydalis Rhizoma samples from different habitats].
abstract: OBJECTIVE
  To compare the content of water, ethanol soluble extracts and tetrahydropalmatine in crude and processed Corydalis Rhizoma samples from different habitats.
  
  
  METHODS
  Corydalis Rhizoma was processed according to the optimum processing of the Chinese Pharmacopoeia (2010 edition), and then, the difference of the content of water,ethanol soluble extracts and tetrahydropalmatine in crude and processed Corydalis Rhizoma samples were analyzed and compared.
  
  
  RESULTS
  From 14 different batches of Corydalis Rhizoma studies, the content of water, ethanol soluble extracts and tetrahydropalmatine in crude Corydalis Rhizoma was 12.8%-14.8%, 16.5%-19.6% and 0.043%-0.075%, respectively; As for Corydalis Rhizoma after processing with vinegar,the content of water, ethanol soluble extracts and tetrahydropalmatine was 7.58%-11.7%, 17.8%-23.5% and 0.046%-0.079%, respectively.
  
  
  CONCLUSIONS
  The content of water, ethanol soluble extracts and tetrahydropalmatine varies slightly in the same type of samples from different habitats,which might be due to the difference in soil and climate in each habitat.
authors: Yue-guang
authors: YG
authors: Ma
authors: Xian-ke
authors: XK
authors: Yue
authors: Gang
authors: G
authors: Cao
authors: Jin
authors: J
authors: Li
authors: Wei-hong
authors: WH
authors: Ge
mesh_terms: D019342:Acetic Acid / Q000737:chemistry*; D001600:Berberine Alkaloids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D031311:Corydalis / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D017753:Ecosystem; D000431:Ethanol / Q000737:chemistry; D006358:Hot Temperature; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012995:Solubility; D013678:Technology, Pharmaceutical; D014867:Water / Q000032:analysis
chemical_list: D001600:Berberine Alkaloids; D004365:Drugs, Chinese Herbal; D014867:Water; D000431:Ethanol; C014215:tetrahydropalmatine; D019342:Acetic Acid