• How to produce high quality rice bran oil?
  • For rice bran oil production, there must rely on rice bran oil processing machine. Generally, rice bran oil machine serves for rice bran pretreatment, rice bran oil pressing or extraction, rice bran oil refinery. To produce high qualilty rice bran oil, a series of rice bran oil production process should be involved.
  • What are the technologies of rice bran oil?
  • After that, the fatty acid composition, bioactive compounds, and the processing technologies of rice bran oil are described and the refining technology of rice bran oil (degumming, deacidification, dewaxing, etc.) as well as the technologies to remaining the bioactive compounds in rice bran oil are introduced.
  • How is rice bran oil processed?
  • The crude rice bran oil must go through a series of refining processes before it can meet the requirements of the standard of edible oil; those refining processes include degumming, decolorizing, and deodorizing (Haraldsson 1983), these processing are briefly described as follows.
  • What is the oleic acid value of rice bran oil after alkali refining?
  • After alkali refining, the oleic acid value of rice bran oil was reduced to 0.23 mg/g. The decolorization process cannot only improve the color of rice bran oil but also remove trace metal ions, peroxides, and some odorous substances (He 2010).
  • What is the difference between mixed refining and re-esterification of rice bran oil?
  • The mixed refining method can improve the refining rate and obtain rice bran oil with high quality, and could also reduce the loss of solvent. The re-esterification method not only removed the free fatty acids effectively but also increased the content of glycerol in rice bran oil significantly.
  • How to refine rice bran oil?
  • In industrial production, rice bran oil is mostly refined by hydration degumming, active clay decolorization, steam deacidification and deodorization, and low-temperature freezing dewaxing. The specific method is to add 2¡ë~3¡ë phosphoric acid and a proper amount of water to treat the crude rice bran oil at 90 ¡ãC for degumming.