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How to extract rice bran oil from rice bran? What is the production process of rice bran oil?

September 24, 2021

In recent years, more and more people choose to extract rice bran oil from rice bran. On the one hand, there are many sources of rice bran. Rice bran can be obtained by planting two or three seasons of rice every year in my country. On the other hand, the price of rice bran oil is much higher than other oils, which can create economic benefits. Therefore, rice bran oil production has attracted more and more attention.

 rice bran oil

The rice bran oil production process consists of 4 parts: the rice bran pretreatment part, the rice bran oil extraction part, the rice bran oil refining part and the rice bran oil dewaxing part. The oil content of rice bran is 10-23%, which is a low oil content oil. The rice bran itself is easy to rancid, so after getting the rice bran, it should be pretreated immediately, so that it can be stored for about a week. Because of these characteristics, the production process of rice bran oil is slightly different from other oils. Let's take a look together.

The pretreatment in the rice bran oil production process is mainly to clean up the impurities in the rice bran and adjust the internal structure of the rice bran to a state suitable for leaching. Rice bran pretreatment equipment mainly includes bran and rice separation screen, tempering pot, extruder and flat dryer. The expanded part is an important step in the pretreatment of rice bran. After puffing, the rice bran will become a porous puffed material with more porosity inside, which is conducive to the penetration of the solvent into the rice bran during leaching, and the leaching efficiency is also improved.

The pretreated rice bran is transported to the leaching workshop. Rice bran oil extraction equipment is similar to other edible oil extraction equipment, including extraction system, wet meal desolventization system, mixed oil treatment system and solvent recovery system. In the leaching system, the principle of the solvent and rice bran oil is used to make the solvent contact with the rice bran to extract the rice bran oil. Then the remaining three systems are processed to obtain rice bran oil and dry meal. Dried meal can be further processed into animal feed to obtain additional economic benefits. The crude oil contains some impurities, which is not conducive to the use and storage of rice bran oil, and needs to be further processed by rice bran oil refining equipment.

 Rice bran oil extraction equipment

Similar to the production process of other conventional oils, the refining part of the rice bran oil production process also includes degumming, deacidification, decolorization and deodorization. However, the wax content in rice bran oil is very high, about 3% to 5%, which will affect the quality and flavor of rice bran oil. Therefore, the rice bran oil has to be dewaxed. After dewaxing, the various indicators of rice bran oil meet the national standards and can be sold on the market.

It should be noted that the oil content of rice bran is relatively low, and the processing capacity must reach more than 20 tons/day to obtain a good profit. Henan Zhongxing Machinery Company has more than ten years of experience in rice bran oil production projects and has installed rice bran oil production equipment in many countries and regions. If you need rice bran oil production equipment, you can contact us.