The production process of rice bran oil involves several stages: Husk Removal: The husk of the rice grain is removed, resulting in a brown rice grain. Bran and Germ Removal: The brown bran layer and rice germ are then removed, leaving behind a white rice grain. Oil Extraction: Rice Bran Oil is first extracted from the bran and germ.
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‰~3‰ phosphoric acid and a proper amount of water to treat the crude rice bran oil at 90 °C for degumming.
What are the three stages of rice bran production?
In a more detailed process, the stages include transportation of the raw rice bran to the factory, crude oil extraction, oil refining, and oil storage. The environmental impact of each stage has been studied, with the oil refining stage having the greatest environmental impact, followed by the oil extraction stage.
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.