title: [Chemical components of essential oils from Meconopsis oliverana and their antioxidant activity].
abstract: OBJECTIVE
  To study the chemical components of essential oils from Meconopsis oliverana and their antioxidant activity.
  
  
  METHODS
  The essential oil was extracted by steam distillation, and GC-MS analysis was used to identify its constituents. The OH free radical scavenging activity of the essential oils was evaluated with an enzyme mark instrument by assay of the ability of DPPH free radical scavenging. BHT was used as positive control.
  
  
  RESULTS
  Forty-seven compounds, account for 91.866% of the essential oils, were identified. The ability of scavenging OH and DPPH radicals of the essential oils is stronger than that of BHT.
  
  
  CONCLUSIONS
  The main chemical constituents of the essential oils from M. oliverana are n-hexadecanoic acid (27.653%) and 6,10,14-trimethyl-2-pentadecanone (16.330%). And the essential oils showed strong antioxidant activity.
authors.affiliation: College of Life Science, Northwest University, Xi'an 710069, China. nsfstone@126.com
authors.forename: Ang
authors.initials: A
authors.lastname: Gao
authors.forename: Bing
authors.initials: B
authors.lastname: Zhao
authors.forename: Jiang
authors.initials: J
authors.lastname: Gong
authors.forename: Shi-Feng
authors.initials: SF
authors.lastname: Ni
authors.forename: Chao
authors.initials: C
authors.lastname: Cui
authors.forename: Mo
authors.initials: M
authors.lastname: Yao
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000378:metabolism; D001713:Biphenyl Compounds / Q000378:metabolism; D002084:Butylated Hydroxytoluene / Q000378:metabolism; D002681:China; D005233:Fatty Alcohols / Q000737:chemistry / Q000302:isolation & purification; D016166:Free Radical Scavengers / Q000737:chemistry / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D017665:Hydroxyl Radical / Q000378:metabolism; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D010084:Oxidation-Reduction; D019308:Palmitic Acid / Q000737:chemistry / Q000302:isolation & purification; D028101:Papaveraceae / Q000737:chemistry*; D010851:Picrates / Q000378:metabolism; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C419345:6,10,14-trimethyl-2-pentadecanol; D000975:Antioxidants; D001713:Biphenyl Compounds; D005233:Fatty Alcohols; D016166:Free Radical Scavengers; D009822:Oils, Volatile; D010851:Picrates; D010938:Plant Oils; D002084:Butylated Hydroxytoluene; D019308:Palmitic Acid; D017665:Hydroxyl Radical; C004931:1,1-diphenyl-2-picrylhydrazyl