title: [The process study on the extraction of irone by supercritical fuilds extraction].
abstract: OBJECTIVE
  To study the condition for the extraction of irone in Iris tectorum by supercritical fluids extraction.
  
  
  METHODS
  Conditions for the extraction were studied by a systematic method as guided by the content of irone presented in the extract.
  
  
  RESULTS
  The best SFE conditions were: 0.411 mm raw material powder of Iris tectorum, 3% CHCl3 as modifier, temperature of extraction 50 degrees C under the pressure of 25 MPa, with CO2 flow rate of 120L/h, the static extracting time 2 h.
authors.affiliation: College of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050.
authors.forename: Tao
authors.initials: T
authors.lastname: Guo
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
mesh_terms: D002245:Carbon Dioxide; D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D027621:Iridaceae / Q000737:chemistry*; D015394:Molecular Structure; D045792:Norisoprenoids / Q000032:analysis / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D011208:Powders; D011312:Pressure; D027343:Rhizome / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods; D013696:Temperature; D013997:Time Factors
chemical_list: D004365:Drugs, Chinese Herbal; D045792:Norisoprenoids; D011208:Powders; D002245:Carbon Dioxide