Journal of the American Oil Chemists' Society

, Volume 81, Issue 3, pp 293–296 | Cite as

Supercritical fluid extraction of jojoba oil

Article

Abstract

Supercritical fluid extraction of jojoba oil from Simmondsia chinensis seeds using CO2 as the solvent is presented in this study. The effects of process parameters such as pressure and temperature of extraction, particle size of jojoba seeds, flow rate of CO2, and concentration of entrainer (hexane) on the extraction yield were examined. Increases in the supercritical CO2 flow rate, temperature, and pressure generally improved the performance. The extraction yield increased as the particle size decreased, indicating the importance of decreasing intraparticle diffusional resistance. The maximum extraction yield obtained was 50.6 wt% with a 0.23-mm particle size and a 2 mL/min CO2 flow rate at 90°C and 600 bar. Use of an entrainer at a concentration of 5 vol% improved the yield to 52.2 wt% for the same particle size and also enabled the use of relatively lower pressure and temperature, i.e., 300 bar and 70°C.

Key Words

Jojoba oil supercritical CO2 supercritical fluid extraction 

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Copyright information

© AOCS Press 2004

Authors and Affiliations

  • Uĝur Salgin
    • 1
  • Ayla Çalimli
    • 1
  • Bekir Zühtü Uysal
    • 2
  1. 1.Department of Chemical Engineering, Faculty of EngineeringAnkara UniversityAnkaraTurkey
  2. 2.Department of Chemical Engineering, Faculty of Engineering and ArchitectureGazi UniversityAnkaraTurkey

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