physical rapeseed oil refining system in venezuela

                                               
                                               
                                               
                                               
                                               
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  • Does rapeseed oil change chemical properties during refining process?
  • A similar trend was observed for the AV, PV and p -AV changes of the oils in varieties during refining process, which indicates that there was no significant difference between these chemical properties of rapeseed oil in varieties.
  • Does rapeseed oil have physicochemical properties and oxidative stability?
  • Although many researchers have investigated the physicochemical properties of rapeseed oil, there is still a lack of information on the physicochemical properties and oxidative stability as it relates to different rapeseed varieties during refining process.
  • How much tocopherol is lost in rapeseed oil?
  • Previous study reported the greatest losses of total tocopherol content in oils could be induced by physical refining (deodorization), amounting approximately to 20.2¨C27.1% [ 32 ], and the deodorization step would cause 7¨C90% losses of tocopherols in rapeseed oils [ 33 ].
  • Can rapeseed oil be used as a functional oil?
  • Thus, CPRO is suggested to use as functional oil as it contains high amounts of phenolic, tocopherol, and phytosterol. The antioxidant activity of CPRO is higher than refined rapeseed oil due to the preserved bioactive compounds in CPRO, as shown by the DPPH assay in Siger et al. (2005).
  • What are rapeseed oil tocopherols?
  • They (¦Á, ¦Ã, and ¦Ä) are potent natural antioxidants that can inhibit the deterioration of oils during storage and prolong the shelf life of edible oils [ 29 ]. Fig 5 showed total and individual tocopherol contents of different rapeseed oil varieties at each step of refining process.
  • What is a good refining method for rapeseed oil?
  • Silicon dioxide had the best refining effect, with dephosphorization and deacidification rates of 95% and 42%, respectively, when the dosage was 30 g/kg at a squeezing chamber temperature of 130 °C. At the same time, the L* value of rapeseed oil increased by 21%, and the a* value decreased by 59%.