• How to extract oleaginous seeds without solvent?
  • The oil extraction by mechanical pressing is the most common method for continuous treatment of oleaginous seeds without solvent. Different types of presses can be used depending on the purpose (expeller, expander, and twin-screw extruder) and on the capacity range (3 kg h ?1 to 150 t day ?1).
  • Which seeds are used in confectioneries?
  • Seeds of oil crops like sunflower, groundnut, and sesame are also used in confectioneries, and hence, high protein and sugar contents and low oil along with flavor compounds need to be addressed.
  • What are the major objectives in oilseed crop improvement?
  • The major objectives in oilseed crop improvement are enhancement of seed and oil yield, quality of oil for edible and industrial purposes, and development of varieties to suit different cropping systems having inbuilt resistance or tolerance to major biotic and abiotic stresses.
  • What is industrial pressing of oilseeds?
  • Industrial pressing of oilseeds is realized using continuous screw presses. The presses are fed with crude or pre-treated seeds. Types of pre-treatments (thermal pre-treatment, size reduction, mechanical sieving, etc.) differ for various seed species (Carr 1997). Each type of seed pre-treatment provides its own advantages.
  • How does seed production affect oil extraction process?
  • The increase in the quantity of seed being slightly lower than the increase in oil production, it demonstrates an improvement of oil extraction processes. Generally, the oil extraction is based on two main steps: pressing (solid¨Cliquid expression) and solvent extraction.
  • Does winter oilseed rape increase crop biomass production?
  • In case of winter oilseed rape, the increase in cultivated area is responsible for only a 20% rise in global crop biomass production, whereas the intensification of the production process, mainly through breeding, accounts for the remaining 80% increase in seed yield (Swiecicki et al. 2011).