What Are the Refining Process of Rice Bran Oil?

Rice bran, as a by-product of rice processing, contains considerable amount of oil, about 14%-24%. The process of extracting oil from rice bran requires professional rice bran oil refining quipment. The core role of this equipment is to effectively remove all kinds of impurities in rice bran oil, while retaining the natural beneficial components of the oil. The impurities in rice bran oil are various, mainly including insoluble solid impurities, colloidal impurities and volatile impurities and so on. These impurities not only affect the purity and taste of oil, but also may adversely affect the storage stability of oil. Therefore, rice bran oil refining equipment is crucial.

Refining process of rice bran oil:

The main steps of rice bran oil refining include:

1. degumming: remove the oil in the phospholipids, mucus and other colloidal impurities, usually through the hydration and acid treatment method.

2. deacidification: adopt alkali refining method to neutralize and remove free fatty acids and other acidic substances in oil.

3. washing: further cleansing the oil of residual saponification and water-soluble impurities to ensure oil purity.

4. dehydration: using heating and vacuum technology to completely remove water from the oil and improve the stability of the oil.

5. Decolorization: use adsorbents such as white clay and activated carbon to adsorb and remove pigments and colloidal substances from the oil.

6. deodorization: through vacuum air lifting technology, remove the odor substances and low molecular compounds in the oil, and improve the flavor of the oil.

7. dewaxing or degreasing: using freeze crystallization or fractional distillation to remove waxes and high melting point fats from the oil and improve the quality of the oil.

After this series of refining steps, the quality of rice bran oil will be significantly improved and it will be more suitable for consumption and storage. After purified rice bran oil, taste mellow, easy to store, and long-term consumption is good for reducing the content of cholesterol in blood, lowering blood pressure, accelerating blood circulation, stimulating hormone secretion in human body, promoting human development. Also therefore, rice bran oil in edible oil position gradually rises, in Japan, Korea, Europe and America and other developed countries by high blood fat, cardiovascular and cerebrovascular disease crowd favorite, and has long become the western family daily health edible oil.