The process of rice bran oil production involves three main steps: pretreatment, extraction, and refining. Here is a brief overview of each step:
1. Pretreatment: This step prepares the rice bran for oil extraction. It includes cleaning, separating, conditioning, expanding, drying, and cooling. The purpose of this step is to remove impurities, increase the oil yield, and stabilize the rice bran.
2. Extraction: This step extracts the crude rice bran oil from the rice bran using a solvent or a mechanical press. The solvent extraction method uses hexane to dissolve the oil from the rice bran, and then separates the oil and the solvent by distillation. The mechanical press method uses a screw worm to squeeze the oil out of the rice bran, and then filters the oil to remove the cake.
3. Refining: This step purifies the crude rice bran oil and makes it suitable for various uses. It includes filtering, neutralizing, degumming, decolorizing, deodorizing, and dewaxing. The purpose of this step is to remove free fatty acids, gums, pigments, odors, and waxes from the oil.
I hope this helps you understand the process of rice bran oil production. If you want to learn more details about each step, you can check out our website: https://ricebranoilpress.com/