This lipidic fraction can be extracted to obtain rice bran oil (RBO), a high value-added product with unique health properties as a result of its high concentration in -¦Ã oryzanol, a powerful antioxidant mixture of bioactive molecules.
What is rice bran oil?
Rice bran contains up to 25% of rice bran oil (RBO), depend-ing on the rice variety, milling process, and stabilization sys-tem. RBO is produced and consumed in great quantities in Asian countries, such as India, Japan, China, Korea, Taiwan, Thailand, and Indonesia.
How much oil can be extracted from rice bran?
Their results show that it is possible to obtain a maximum oil yield of 20.05 g/100 g rice bran in a three-hour extraction in ethanol with 6% of water at 82.5 °C, with a 4:1 w/w solvent-to-bran ratio and a stirring speed of 137.5 rpm. The – oryzanol content varies between 1527 and 4164 mg/kg of fresh rice bran.
What is commercial rice bran?
Commercial rice bran is usually a mixture of these two rice by-products . This fraction possesses an extraordinary quantity of nutritive compounds, such as fibers, fats, proteins, vitamins (vitamin E and B complexes), and antioxidant mol-ecules. It contains 10 ¨C23% of oil, which is usually extracted using a solvent .