米ぬか油亜臨界抽出機

Choose Right Rice Bran Oil Extraction Process & Method

As for rice bran oil production, the first step to establish an efficient extraction project is to decide rice bran and rice bran oil production process based on the planning capacity and investment budget. Sub-critical Low Temperature Solvent Extraction Method is the latest advanced oil extraction technology that is extremely suitable for rice bran oil extraction. Different from traditional solvent extraction (hexane), it uses subcritical solvents, including butane, propane, and dimethyl ether, to separate oils from the rice bran. Why choose these solvents instead of hexane? Below research carried out by Henan University of Technology would tell the answer.

Comparison of the Active Ingredients within Rice Bran Oil by Hexane and Subcritical Solvents

Above research data have clearly proven the advantages to extract rice bran oil by subcritical solvents than traditional hexane.

• The oryzanol contents by subcritical solvents is higher than that of hexane, up to 12.7%.
• The plant sterol contents by subcritical solvents is higher than that of hexane, up to 16.9%.
• The Vitamin E contents by subcritical solvents is higher than that of hexane, up to 65.8%.
• The color of crude rice bran oil by subcritical solvents is brighter than that of hexane, please check the right picture.
• The oil meal is free from high temperature, which perfectly protect the protein within it from damages. 

In conclusion, compared with traditional hexane solvent extraction method, the subcritical low temperature solvent extraction technology is more suitable for rice bran oil production. So, how about the rice bran oil extraction process by subcritical low temperature extraction method.