title: [Determination of taxol in aril of Torreya grandis cv. merrilli].
abstract: OBJECTIVE
  To determine taxol in aril of Torreya grandis cv. merrilli.
  
  
  METHODS
  Extracts from Torreya grandis cv. merrilli were obtained by cold extraction and soxhlet extraction with ethanol, butyl acetate and chloroform as solvent. The content of taxol in extracts was determined by HPLC, and whether components similar with taxol existed in which was detected by FIA-MS.
  
  
  RESULTS
  The content of taxol in aril of Torreya grandis cv. merrilli is below 0. 003%. No components similar with taxol were clearly detected.
  
  
  CONCLUSIONS
  There is little value for Torreya grandis cv. merrilli as the resource of taxol.
authors.affiliation: Department of Chemical Engineering, State Key Lab of Chemical Engineering, Tsinghua University, Beijing 100084.
authors.forename: Yangcheng
authors.initials: Y
authors.lastname: Liu
authors.forename: Jin
authors.initials: J
authors.lastname: Song
authors.forename: Guangsheng
authors.initials: G
authors.lastname: Luo
mesh_terms: D002725:Chloroform; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D000431:Ethanol; D017239:Paclitaxel / Q000032:analysis* / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry; D032490:Taxaceae / Q000737:chemistry*
chemical_list: D000431:Ethanol; D002725:Chloroform; D017239:Paclitaxel