• What is vegetable oil refining?
  • As vegetable oil is an important component of the human diet, the source and the processing play an important role in consumer acceptability. To remove impurities that affect the color, palatability, stability, and safety of oil, crude vegetable oil must be refined. This review highlights the processes and steps used in vegetable oil refining.
  • 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).
  • Why is Physical refining of vegetable oil important?
  • Physical refining of vegetable oils offers great opportunity for green vegetable oil processing, and is a contribution toward sustainability of oil mills and refineries, as supported by the following. The process has a much smaller carbon footprint, less equipment required, considerably less capital cost, and lower cost of automation.
  • How does edible oil refining reduce production costs?
  • In edible oil refining, the continuous effort to reduce overall production costs is mainly achieved by increasing plant capacities, installation of mono feedstock plants, and increasing the degree of automation. Over the years, more energy-efficient processes and technologies, resulting in a higher refined oil yield, have gradually been introduced.
  • 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.
  • How to improve the quality of vegetable oil?
  • It is worth noting that some beneficial components are also removed, such as carotenoids (mainly including ¦Á- and ¦Â-carotene) and tocopherols (such as tocols and tocotrienols) . Thus, a moderate, focused refining process is very important to improve the quality of vegetable oil.