Rice bran (RB), the outer brown layer of rice, is one of the main by-products during milling. It is a rice source of rice-bran oil (RBO) with good fatty acid profile and phytonutrients like oryzanols, tocopherols, tocotrienols, phytosterols, and importantly dietary fibers.
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 made?
To reach an edible grade, RBO is submitted to either physical or chemical refining. The type of refining process used influences the nutritional composition of RBO. 1 Refining crude rice bran oil involves basically dewaxing, degumming, neutralization of free acids, bleaching to improve color, and steam deodorization.
What is rice bran?
Rice bran is obtained from outer layer of the brown (husked) rice kernel during milling. It has emerged as potential by-product from rice processing industry due to the increasing demand for rice bran oil (RBO) as healthy functional food ingredients.