title: [Analysis of volatile compounds of Salix babylonica by GC-MS].
abstract: OBJECTIVE
  To study the volatile compounds of Salix babylonica, and to provide scientific basis for efficacy of attracting natural enemies and medicinal value of Salix babylonica.
  
  
  METHODS
  The volatile compounds were collected from Salix babylonica by dy- namic headspace absorption method, and analyzed by gas chromatography-mass spectrum( GC-MS).
  
  
  RESULTS
  Forty-one volatile com- pounds were identified from Salix babylonica. Intact plant of Salix babylonica had thirty-three kinds of volatile compounds and aphid-in- fested plant of Salix babylonica had thirty-eight kinds of volatile compounds. The volatile components of intact plant and aphid-infested plant had significant differences in the composition and proportion. Among them,the volatile components of aphid-infested plant added six kinds of vinyl materials,one kind of aldehyde and one kind of ketone.
  
  
  CONCLUSIONS
  Adding volatile components,which included vinyl materials,aldehydes and ketones,might have the efficacy of attracting natural enemies. The volatile components might play an important role in the ecological protection for Salix babylonica. The functional components from the volatile compounds had good medicinal value, which are worthy of further research.
authors.forename: Dan
authors.initials: D
authors.lastname: Mu
authors.forename: Zheng-kui
authors.initials: ZK
authors.lastname: Liu
authors.forename: Yuan
authors.initials: Y
authors.lastname: Tao
authors.forename: Lian-zhu
authors.initials: LZ
authors.lastname: Zhou
authors.forename: Jia-qing
authors.initials: JQ
authors.lastname: Wang
authors.forename: Wen-wen
authors.initials: WW
authors.lastname: Xu
authors.forename: Guo-quan
authors.initials: GQ
authors.lastname: Luo
mesh_terms: D000447:Aldehydes; D008401:Gas Chromatography-Mass Spectrometry; D007659:Ketones; D032108:Salix / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000447:Aldehydes; D007659:Ketones; D055549:Volatile Organic Compounds