Supercritical CO<sub>2</sub> extraction of flaxseed
Berrin Bozan, Feral Temelli
Journal of the American Oil Chemists Society
Abstract
Abstract Extraction of flaxseed oil was performed with supercritical carbon dioxide (SC‐CO 2 ). To investigate the effects of pressure and temperature on the solubility of oil and oil yield, three isobaric (21, 35, and 55 MPa) and two isothermal (50 and 70°C) extraction conditions were selected. Although the maximal solubility of flaxseed oil, 11.3 mg oil/g CO 2 , was obtained at 70°C/55 MPa, the oil yield obtained after 3 h of extraction at this condition was only 25% (g oil/g seed×100), which represented 66% of the total available oil of the flaxseed. Lipid composition and FFA and tocol (tocopherol and tocotrienol) contents of the oils obtained by both SC‐CO 2 and petroleum ether extraction were determined. The α‐linolenic acid content of the SC‐CO 2 ‐extracted oil was higher than that obtained by solvent extraction.
Extracted Claims
4 claims extracted from this paper into the knowledge graph
α-linolenic acid is higher in SC-CO2 extracted flaxseed oil
“The α‐linolenic acid content of the SC‐CO 2 ‐extracted oil was higher than that obtained by solvent extraction”
supercritical CO2 was used for flaxseed oil extraction
“Extraction of flaxseed oil was performed with supercritical carbon dioxide (SC‐CO 2 )”
temperature affects solubility of oil
“To investigate the effects of pressure and temperature on the solubility of oil and oil yield, three isobaric (21, 35, and 55 MPa) and two isothermal (50 and 70°C) extraction conditions were selected”