title: [Studies on extraction process optimization of Panax notogingseng saponins].
abstract: OBJECTIVE
  To optimize the conditions for the extraction of panax notogingseng saponins (PNS).
  
  
  METHODS
  After selected extraction solvent and suitable particle, we employed orthogonal experimental design to examine the conditions for the extraction by determination of PNS.
  
  
  RESULTS
  Significant effect was observed only in extraction times.
  
  
  CONCLUSIONS
  The optimum condition for extraction of PNS was to extract panax notogingseng (Burk.) F. H. Chen with 10 times 70% ethanol for 1.5 hours for 3 times.
authors.affiliation: Department of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310031, China.
authors.forename: Lin-hai
authors.initials: LH
authors.lastname: Qu
authors.forename: Ming
authors.initials: M
authors.lastname: Zheng
authors.forename: Yi-jia
authors.initials: YJ
authors.lastname: Lou
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D000431:Ethanol / Q000008:administration & dosage; D005894:Panax / Q000737:chemistry*; D010316:Particle Size; D010598:Pharmacognosy; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000032:analysis / Q000302:isolation & purification*; D013678:Technology, Pharmaceutical / Q000379:methods*; D013995:Time
chemical_list: D004365:Drugs, Chinese Herbal; D012503:Saponins; D000431:Ethanol