60td 80td chinese continuous and automatic rice bran oil machine in ethiopia

                                               
                                               
                                               
                                               
                                               
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  • What are the technologies of rice bran oil?
  • The processing technologies of rice bran oil include degumming, deacidification, dewaxing, etc.. These technologies help refine the oil and maintain its bioactive compounds.
  • What are the methods used to extract rice bran oil?
  • Rice bran oil is extracted by pressing or solvent extraction methods, such as supercritical carbon dioxide extraction and enzymatic extraction. There are about 15¨C20% crude oil in rice bran.
  • When should oil be extracted from rice bran?
  • Oil should be extracted immediately as soon as the bran is produced. Otherwise, oil will be hydrolyzed into free fatty acids (FFAs) and glycerol by the action of very active lipase enzymes present in rice bran. Under favorable conditions, the rate of oil degradation and FFA formation could be very high (Houston, 1972).
  • What is the process to refine rice bran oil?
  • To refine rice bran oil, the following steps are taken: hydration degumming, active clay decolorization, steam deacidification and deodorization, and low-temperature freezing dewaxing. Specifically, degumming involves adding 2¡ë~3¡ë phosphoric acid and a proper amount of water to treat the crude oil at 90 °C.
  • 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).
  • How is rice bran treated by extruding technology?
  • Qiao et al. treated rice bran using extruding technology and achieved the optimal process parameters. The lipase inhibition rate was 76% when the water content was 19%, the screw speed was 180 r/min, and the cylinder temperature was 130 °C.