title: [Optimization of extraction technology of Psoralea corylifolia and Salvia miltiorrhiza by orthogonal design with multi-targets].
abstract: OBJECTIVE
  To optimize the extraction technology for Psoralea corylifolia and Salvia miltiorrhiza.
  
  
  METHODS
  An orthogonal test was adopted in this study. The contents of Tanshinone IIA, Salvianolic acid B, Psoralen and Isopsoralen were used as indices of appraisal. Data processing was carried out with the multiple guidelines grading method for optimizing the extraction condition.
  
  
  RESULTS
  The best extraction technology was to extract for 2 times with 8 fold ethanol solution (70%) and 1.5 h each time.
  
  
  CONCLUSIONS
  The optimized extraction technology was rational and the extraction rate of the active principles is high.
authors.affiliation: School of Chinese Pharmacy, Beijing University of Traditonal Chinese Medicine, Beijing 100102, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Chen
authors.forename: Shouying
authors.initials: S
authors.lastname: Du
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
mesh_terms: D005591:Chemical Fractionation / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D011564:Furocoumarins / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry; D027561:Salvia miltiorrhiza / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D011564:Furocoumarins; D009930:Organic Chemicals