title: [Study on liposome preparation technique of Bupleurum chinense volatile oil for injection].
abstract: OBJECTIVE
  To study the preparation technique of the liposome of Bupleurum chinense volatile oil.
  
  
  METHODS
  The composition, entrapment ratio of volatile oil, availability of freeze-drying and the changes of finger prints were studied.
  
  
  RESULTS
  Entrapment ratio reached 81.9%. After freeze-dried, the remaining ratio of the oil entrapped in the liposome reached 88.6%.
  
  
  CONCLUSIONS
  It is practicable to make B. chinense injection into freeze-dried liposome powder.
authors.affiliation: The Postdoctoral Station of the Medical Center of Peking University, Beijing 100083, China. yuyuhong72@hotmail.com
authors.forename: Yu-hong
authors.initials: YH
authors.lastname: Yu
authors.forename: Xue-chun
authors.initials: XC
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Wu
authors.forename: Peng-fei
authors.initials: PF
authors.lastname: Tu
mesh_terms: D029972:Bupleurum / Q000737:chemistry*; D005612:Freeze Drying; D007267:Injections; D008081:Liposomes; D009822:Oils, Volatile / Q000008:administration & dosage* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D011208:Powders; D013678:Technology, Pharmaceutical / Q000379:methods*
chemical_list: D008081:Liposomes; D009822:Oils, Volatile; D011208:Powders