title: [Research on components of Cornus officinalis extracted by supercritical carbon dioxide].
abstract: OBJECTIVE
  To study the chemical constituents of Cornus officinalis extracted by supercritical carbon dioxide fluid extraction (SFE).
  
  
  METHODS
  The process was performed at 40 centigrade with pressures of 15 MPa for 2 hours and with CO2 fluid and gas at the flow rate of 22.0 kg x h(-1) and 18.0 kg x h(-1) respectively. The chemical constituents of the SFE extractions were determined by GC-MS.
  
  
  RESULTS
  The total amount of extractable substances or yields by SFE is 2.42% (mass). 31 Chemical constituents were identified and their relative contents were determined by normalization method of area.
  
  
  CONCLUSIONS
  The major components identified in the extractions are 1,2-benzenedicarboxylic acid, butyl 2-methylpropyl ester, isopropyl myristate etc.
authors.affiliation: Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu, China. shuyanhan@yahoo.com.cn
authors.forename: Shu-yan
authors.initials: SY
authors.lastname: Han
authors.forename: Yang
authors.initials: Y
authors.lastname: Pan
authors.forename: Guang-ming
authors.initials: GM
authors.lastname: Yang
authors.forename: Bao-chang
authors.initials: BC
authors.lastname: Cai
mesh_terms: D002245:Carbon Dioxide; D025924:Chromatography, Supercritical Fluid; D029768:Cornus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D009226:Myristates / Q000032:analysis*; D019301:Oleic Acid / Q000032:analysis; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D009226:Myristates; C008205:isopropyl myristate; D002245:Carbon Dioxide; D019301:Oleic Acid