Steam refining usually produces refined RBO with a dark color, which is designated as grade-three or grade-four RBO according to the National Standard of China (GB19112 Rice Bran Oil) [ 4 ]. Oils of both of these low grades are edible.
How is rice bran oil made in China?
Two refining processes, steam refining and miscella refining, are now the primary industrial techniques used for producing edible RBO in China. Steam refining usually produces refined RBO with a dark color, which is designated as grade-three or grade-four RBO according to the National Standard of China (GB19112 Rice Bran Oil) [ 4 ].
What is the yield of rice bran oil?
The yield of final oil reached 80¨C85 % through the entire refining process. Rice bran oil (RBO) is one of the most nutritious and healthy edible oils available. It contains more than 80 % unsaturated fatty acids, mainly consisting of oleic and linoleic acids in an approximate ratio of 1.1:1 [ 1, 2 ].
What is rice bran oil (RBO)?
Notably, the final oil exhibited light color and retained nearly 80 % of the oryzanol of raw oil. The yield of final oil reached 80¨C85 % through the entire refining process. Rice bran oil (RBO) is one of the most nutritious and healthy edible oils available.