Crude canola oil is industrially extracted from canola seeds by expeller-pressing of heat-preconditioned flaked seeds. The residual oil in the pressed B canola cake^is recovered by solvent extraction using hexane. However, hexane extraction may pose adverse safety
How to extract canola oil from seeds?
Expeller pressing is the main process of canola oil extraction from canola seeds. Chemical or solvent extraction using hexane is also used to extract the residual oil from the pressed cake. Before flaking of the seeds, they need to be softened (conditioned) by heating with steam to prevent the seeds from shattering during flaking.
How is canola oil pressed?
In Mechanical Press, Canola oilseeds are pressed in a series of Screw Presses / Expellers. This process uses no chemical and leaves about 5-7% oil in the residual Cake/Meal. This pressed cake can be subjected to Solvent Extraction for further Oil Extraction. Step 4. Solvent Extraction
How to process canola seed?
For processing Canola seed, the basic equipment we need are Seed Cleaner, Seed Cooker/Kettle, Oil Press, Filter Press, Steam Boiler, Screw Conveyors & Bucket Elevators. The following are steps involved in Canola Oil Extraction Plant: Step 1. Seed Cleaning Canola Seeds are separated and cleaned to remove impurities such as dust, metal, plant stalks.