title: [Applying grading methods of synthesizing multiple guidelines to optimizing extracting technology for Radix Panacis Quinquefolii].
abstract: OBJECTIVE
  To optimize the best extracting procedure for Radix Panacis Quinquefolii.
  
  
  METHODS
  (1) The optimum alcohol extracting procedure was selected with the content and extraction efficiency of ginsenoside Rg, Re, Rb, from Radix Panacis Quinquefolii by orthogonal test design and synthesizing multiple guidelines method. (2) The content of three ginsenoides Rg1, Re and Rb1 in Radix Panacis Quinquefolii was determined by gradient elution method in RP-HPLC.
  
  
  RESULTS
  The optimum alcohol-extracting procedure was determined as 12 times of 70% alcohol refluxing and extracting 3 h for 2 times.
  
  
  CONCLUSIONS
  The optimum extracting procedure can increase extraction efficiency of Radix Panacis Quinquefolii.
authors.affiliation: Wuhan University, Wuhan, 430072.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Lei
authors.forename: Jiayou
authors.initials: J
authors.lastname: Shu
authors.forename: Cuiwei
authors.initials: C
authors.lastname: Zhao
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D000431:Ethanol; D036145:Ginsenosides / Q000032:analysis / Q000302:isolation & purification*; D005894:Panax / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D013678:Technology, Pharmaceutical / Q000379:methods*; D013995:Time
chemical_list: D004365:Drugs, Chinese Herbal; D036145:Ginsenosides; D000431:Ethanol