chemical methods rice bran oil refined system in namibia

   
chemical methods rice bran oil refined system in namibia
                                               
                                               
                                               
                                               
  • chemical methods rice bran oil refined system in namibia
How is rice bran oil extracted?

There are about 15¨C20% crude oil in rice bran; normally, the rice bran oil is extracted by pressing or solvent extraction methods, such as supercritical carbon dioxide extraction and enzymatic extraction, and then refined by decolorization, deodorization, or other processes.

What is deacidification of rice bran oil?

Deacidification is the process of removing free fatty acids from crude rice bran oil. The deacidification methods of rice bran oil include alkali refining, distillation, mixing, re-esterification, and extraction. The alkali refining method has comprehensive effects such as deacidification and decolorization, but the refining loss is much higher.

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.

What is the difference between mixed refining and re-esterification of rice bran oil?

The mixed refining method can improve the refining rate and obtain rice bran oil with high quality, and could also reduce the loss of solvent. The re-esterification method not only removed the free fatty acids effectively but also increased the content of glycerol in rice bran oil significantly.