How to increase nutrient content in rice bran oil?
At present, to increase the nutrient content in the refined rice bran oil, some manufacturers extract these bioactive compounds from the by-products of rice bran oil processing (soap-stock, deodorized distillate, etc.) and then add them back.
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 °C for degumming.
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.