• How does refining rapeseed oil affect oxidation stability?
  • Wu, Zhou, Wang, Wang, Yang, Ju and He studied the effects of refining on the physicochemical properties and oxidation stability of five varieties of rapeseed oil, and the results showed that the order of reducing the tocopherol content by different refining steps was deodorization >?bleaching >?neutralization >?degumming .
  • How rapeseed oil color change after refining?
  • Schematic diagram of the color change of rapeseed oils before and after refining . Generally, the process of industrial bleaching is to bleach crude oil at a high temperature for 20¨C40?min by using bleaching soil after activation.
  • What is edible oil refining?
  • Every stage of the refining process has its function to remove particular undesirable compounds that improve the quality of the oils. The implementation of ultrasound technology has attracted interest in edible oil refining as an alternative method to the conventional degumming and bleaching processes.
  • What is chemical refining of vegetable oil?
  • Chemical refining of vegetable oil involves degumming, neutralization, bleaching, and deodorization. Table 1 summarizes the parameters used in the chemical refining process of vegetable oils and the findings from previous studies. Table 1. Summary of application of chemical refining in different vegetable oils. 98.9% reduction of FFA.
  • What is the industrial processing of vegetable oils?
  • The industrial processing of vegetable oils has become increasingly standardized based on national or international standards, and high-capacity production of extraction and refining has been realized .
  • Does rapeseed oil have a low residual phospholipid content?
  • Moreover, Jiang et al. (2014b) reported a low residual phospholipid content (6.5 mg/kg) was obtained in ultrasound-assisted degumming rapeseed oil at 55 ¡ãC, pH 5.0, 50 mg/kg enzyme loading, 3.5% water addition and 0.09 W/cm 2 ultrasonic power intensity. The residual phosphorus could be quickly reduced to less than 10 mg/kg within 2 h.