In this study, oil extraction from Niger seeds was evaluated with different microwave irradiation times (0–200 s) and pulsed electric fields (PEF) intensities (0–5 kV/cm) as pretreatments. Then, oil extraction was completed with a screw press at different rotation speeds (11–57 rpm).
Who invented linseed oil extraction machines?
Alfred W. French Sr. founded French in 1900 to produce state-of-the-art equipment for the extraction of linseed oil from flax. Mr. French soon adapted his equipment to other oilseeds as well. Today, French stands as a leading supplier and innovator of oil extraction machines and mechanical oilseed screw presses.
How is linseed oil extracted?
This work aims at characterizing linseed oil obtained using different extraction methods (hexane, subcritical propane and pressurized ethanol), and comparing the results with commercial linseed oil extracted by cold mechanical press method.
What is the oil extraction efficiency of Niger seeds?
In different references, 37%–50% oil extraction efficiency for Niger seeds has been reported. The highest unsaturated fatty acids are linoleic and oleic acids, and the most predominant saturated fatty acids are palmitic and stearic acids.