Rice bran oil is an edible oil produced from rice bran, a byproduct of rice processing, through pressing or extraction. Rice bran contains approximately 18% oil, which is high in unsaturated fatty acids and rich in vitamin E, oryzanol, and sterols, among other bioactive substances. Besides edible uses, it can also be used in the cosmetics industry.
The specific oil extraction process and equipment used for rice bran oil production line depend on the rice bran oil mill’s capacity and requirements. Industrially, pressing and extraction are the two main processes used in rice bran oil production plant. In comparison, rice bran oil pressing prioritizes the preservation of oil nutrients and active substances, while rice bran oil solvent extraction focuses on efficiency and oil yield. Each process has its advantages and disadvantages:
Pressing, as a traditional oil extraction process, involves applying external force to squeeze oil out of the material. This results in a higher residual oil content in the cake, and for oilseeds like rice bran with high powder content and low oil content, production efficiency is relatively low. However, it produces high-quality oil with better nutrient retention, and the physical rice bran oil pressing process leaves no chemical residue, aligning with current consumer health concepts and making it more readily accepted by consumers.
Solvent extraction, a widely used industrial edible oil extraction process, involves soaking and extracting oil using organic solvents. Utilizing the difference in boiling points between the solvent and oil, the solvent is separated and recovered through evaporation, stripping, and condensation to obtain crude oil. Solvent extraction is highly efficient, yields a high oil yield, and can control residual oil in the cake to below 1%. It fully extracts oil, increases the oil yield, reduces residual oil, and improves the quality of the cake, making it suitable for large-scale production. However, crude oil contains solvent residues, requiring rice bran oil refining equipment to remove impurities and harmful substances. This affects the retention of nutrients and active ingredients in the oil, and the high investment cost of such equipment creates a significant barrier to entry, making it unsuitable for small-scale rice bran oil mill plants.
In conclusion, when investing in an edible oil production line, business owners need to determine the edible oil refining equipment based on the oil mill’s core needs. This includes considering the rice bran oil mill’s daily processing capacity, raw material quality, investment budget, and finished oil quality to determine the appropriate oil refining process and production line configuration. For small rice bran oil mills, focusing on reducing initial investment and simplifying production processes, a combination of pretreatment + pressing + simple refining reduces complex equipment configuration, ensuring the quality of base oils while controlling costs. For medium-sized oil mills seeking a balance between efficiency and quality, a pretreatment + solvent extraction + conventional refining process achieves reasonable production results. The rice bran oil extraction stage increases oil extraction rate, and combined with standardized refining processes, it produces rice bran oil that meets mainstream market standards. Large rice bran oil mills aiming for high-quality rice bran oil can customize a pretreatment + high-level extraction + deep refining process, adding dewaxing and sterol removal steps to remove impurities that affect quality and increase product added value.
Henan Huatai Cereals and Oils Machinery Co., Ltd. designs reasonable solutions based on the production needs of rice bran oil mills, providing detailed process plans and design lists. Rice bran oil production lines are designed according to the actual capacity requirements of the rice bran oil processing plant and the site conditions, effectively saving resource costs and improving construction efficiency. The manufacturer prioritizes quality, providing customers with high-quality equipment and services. If you have equipment needs or process-related questions, please feel free to consult and visit us.
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