PETROLEUM-FREE EXTRACTION OF OIL FROM CANOLA SEEDSUSING SUPERCRITICAL CO2

Samples of crushed and cooked canola seeds (Okapy Double Zero) were extracted using supercritical carbon dioxide (SCCO2) at 34 MPa and 40oC and a commercial organic solvent (AW406). The oil solubility in SCCO2 was determined and extracted oils were examined with respect to their chlorophyll contents, nonsaponifiable matters, fatty acid composition and iodine value. The yield of SCCO2 extraction was significantly (P 0.05) in both extracted oils. Key words: Canola oil, extraction, organic solvent, quality characteristics, supercritical carbon dioxide