• How is crude oil produced in a soybean crushing plant?
  • The crude oil is usually water degummed in the crushing plant which generates an additional flow, consisting of gums (or lecithin). Table 1 presents the main quality parameters (optimal contents) of the major products from soybean crushing.
  • Is Physical refining better than chemical refining for vegetable oil?
  • The effects of process conditions on standard quality parameters and the nutritional quality of the oil are well documented in the literature [5, 19, 71, 72]. In conclusion, physical refining offers great several advantages over chemical refining for vegetable oils (Table 2).
  • What is chemical refining of oil?
  • Chemical Refining of Oil Chemical refining is the traditional method used since ancient times. It can be used for all fats and oils even when they have been slightly degraded. Each step of the refining process has specific functions for removing some undesirable compounds.
  • How does refining affect the stability of refined edible oils?
  • This directly influences the stability of refined edible oils. Efficient refining processes should be developed for crude oils to remove undesirable compounds while doing the least possible damage to the interesting components at the same time and not generating higher levels of unwanted compounds.
  • Does refining affect the safety of refined oils?
  • These can directly influence the safety level of refined oils. Several studies were devoted to determining the effects of refining on the minor bioactive components such as sterols and tocopherols. Indeed, Verh¨¦ et al. , who found a sterols loss of 10¨C32% (physical refining) and 13¨C31% (chemical refining).
  • What is crude oil refining?
  • Treatment that eliminates undesirable and toxic components in crude oils is known as ¡°refining¡± . Refining is practically mandatory for crude oils that cannot be consumed as virgin oils to provide a product with an attractive appearance, a neutral taste, and more resistance to oxidation.