• How does seed processing affect oil extraction?
  • Good seed processing results in high extraction yields (low residual oil content after extraction) and high-quality products (crude oil and meal) while keeping production costs low. In fact, the efficiency of oil extraction is strongly influenced by seed processing.
  • How is oil extracted from seeds?
  • Commercial large-scale extraction of seed oils is typically based on solvent extraction or mechanical extraction. Mechanical pressing is commonly employed to extract oil from oilseeds and is dependent on pretreatment of raw seed material (Mildner-Szkudlarz, R¨®?a¨½ska, Siger, Kowalczewski, & Rudzi¨½ska, 2019).
  • What is the solubility of seed oil at high extraction pressures?
  • At very high extraction pressures in the range of 70¨C100 MPa, the solubility of seed oils has been shown to reach a solubility maximum in CO 2 and then decrease with the further application of higher pressures (King, 2013).
  • Can rapeseed oil be used in a pressure system?
  • The system is, however, limited in its application to products with a low oil content. Seeds with a high oil content (>40%), such as rapeseed and sunflower seeds, do not usually allow sufficient pressure build-up in the units to achieve similar effects as seen with soybeans .
  • Does mechanical pressing extract oil from oilseeds?
  • Mechanical pressing is commonly employed to extract oil from oilseeds and is dependent on pretreatment of raw seed material (Mildner-Szkudlarz, R¨®?a¨½ska, Siger, Kowalczewski, & Rudzi¨½ska, 2019). However, mechanical pressing processes have a low extraction efficiency (<70% oil is extracted).
  • How does flow rate affect seed oil extraction yield?
  • The flow rate of the SF, passing through the seed oil matrix can also influence the extraction yield.