title: [Comparison of Chemical Components of Essential Oil from Ocimum basilicum var. pilosum Extracted by Supercritical CO2 Fluid and Steam Distillation].
abstract: OBJECTIVE
  To compare the chemical components of essential oil prepared by steam distillation extraction (SD) and supercritical CO2 fluid extraction (SFE-CO2) from Ocimum basilicum var. pilosum whole plant.
  
  
  METHODS
  The essential oil of Ocimum basilicum var. pilosum were extracted by SD and SFE-CO2. The chemical components of essential oil were separated and analyzed by gas chromatography-mass spectrometry( GC-MS). Their relative contents were determined by normalization of peak area.
  
  
  RESULTS
  40 and 42 compounds were detected in the essential oil prepared by SD and SFE-CO2 respectively. 25 compounds were common.
  
  
  CONCLUSIONS
  Thereare significant differences of the chemical components between the Ocimum basilicum var. pilosum essential oil prepared by SD and thatby SFE-CO2. Different methods showed different extraction efficiency with a special compound. It might be a good idea to unite several methods in the modern traditional Chinese medicine industry.
authors.forename: Zhao-yu
authors.initials: ZY
authors.lastname: Wang
authors.forename: Jia-huan
authors.initials: JH
authors.lastname: Zheng
authors.forename: Sheng-ying
authors.initials: SY
authors.lastname: Shi
authors.forename: Zhi-xiong
authors.initials: ZX
authors.lastname: Luo
authors.forename: Shun-yu
authors.initials: SY
authors.lastname: Ni
authors.forename: Jing-ming
authors.initials: JM
authors.lastname: Lin
mesh_terms: D002245:Carbon Dioxide; D005591:Chemical Fractionation / Q000379:methods*; D057168:Distillation; D018649:Ocimum basilicum / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry*; D064209:Phytochemicals / Q000032:analysis* / Q000302:isolation & purification; D010938:Plant Oils / Q000737:chemistry*; D013227:Steam
chemical_list: D009822:Oils, Volatile; D064209:Phytochemicals; D010938:Plant Oils; D013227:Steam; D002245:Carbon Dioxide