3.2. Chemical and physical refining of rice bran oil ¦Ã-Oryzanol and most other phytochemicals are largely lipophilic, and thus are extracted with the RBO; however, differently from tocols, ¦Ã-oryzanol is transferred to soapstock during the neutralisation step of chemical refining of RBO ( Narayan, Barhate, & Raghavarao, 2006 ).
What is rice bran?
Rice bran is a byproduct of the rice milling industry obtained from milling of brown rice to produce white rice. It contains 15%¨C20% of oil. Apart from oil, rice bran is a promising source for proteins, carbohydrates, dietary fiber, vitamins, tocopherol, ¦Ã-oryzanol, and phospholipids (Tao, 1989; Houston, 1972; Saunders, 1986).
What is rice bran oil?
1. Introduction Among edible oils, rice bran oil (RBO, 20¨C25 wt% in rice bran) is a unique rich source of commercially-important bioactive phytochemicals, most of them of interest in nutrition, pharmacy and cosmetics ( Da Silva et al., 2005, Danielski et al., 2005 ).
What is rice bran oil (RBO)?
Rice bran oil (RBO) is considered to be a superior quality oil as it has a balanced fatty acid profile, and it contains a number of minor components with proven nutritional benefits such as ¦Ã-oryzanol, tocotrienol, tocopherol, and squalene (Houston, 1972).