Abstract
Extraction of palm kernel oil from dehulled ground palm kernel using supercritical carbon dioxide (SC-CO2) was studied at conditions of 313.2 and 353.2 K and at pressures from 20.7 to 48.3 MPa. The yield of PKO increased with pressure from 34.5 to 48.3 MPa at 353.2 K and attained a value of 49 g oil/100 g palm kernel at 48.3 MPa and 353.2 K. Lower amounts of shorter chain triglycerides component in terms of fatty acid constituents (C8-C14) were extracted at lower pressures of 20.7-27.6 MPa, and higher amounts of longer chain fatty acid constituents (C16-C18:2) were extracted at higher pressures from 34.5 to 48.3 MPa. A simple correlation was developed based on a kinetic mass transfer model. From the correlation, the minimum amount of CO2 usage for a given yield could be estimated.
Original language | English |
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Pages (from-to) | 1007-1014 |
Number of pages | 8 |
Journal | Journal of Food Engineering |
Volume | 79 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2007 Apr |
Keywords
- Fatty acid constituents
- Mass transfer
- Palm kernel oil
- Supercritical extraction
ASJC Scopus subject areas
- Food Science