Rice bran is the very thin layer of brown rice. It is the main nutritious part of rice. Rice bran is very high in vitamins and nutrients. Rice bran oil, not fiber, lowers cholesterol in healthy, hypercholesterolemia individuals. Because there were no substantial differences in the fatty acid composition of the diets, the reduction of cholesterol is due to another component there in the rice bran oil. Huatai Oil Machinery provides advanced rice bran oil extraction machinery technoloy.
Let us find out the Process of Rice Bran Oil Extraction Machinery:
Usually obtaining rice bran oil by extraction of rice bran which is a by-product of the rice milling industries. There are several techniques for the rice bran oil extraction machinery, but solvent extraction with hexane is the most popular used conventional process for commercial extraction.
Rice bran oil expelling relies on very high-quality rice bran oil expeller. After putting the well-set rice bran into the feeder of the expeller, a screwworm will transport the rice bran advance. As the screwworm moves, space becomes smaller, thus squeezing rice bran oil out. Then the fresh RBO seeps out through the small openings in the bottom of the squeezing barrel where the rice bran oil cake cannot pass through and separating rice bran oil from oil cake.
After collecting rice bran oil cake, rice bran oil extraction comes with the help of food grade solvent, generally hexane. Principle of rice bran oil extraction machine works on the countercurrent and moving the bed with variable bed height and different speed mechanism to make sure the permit of excellent penetration and percolation of solvent for absolute extraction. Then the distillation process begins in the vacuum, and the collecting the extracted rice bran oil by vaporizing solvent out for later recovery.
Rice Bran Oil Solvent Extraction Machine:
The Rice Bran Oil Solvent Extraction machine can recover oil from any materials with low oil content, or for pre-pressed oil cakes in order to obtain high oil content. Hexane is the most normally solvent for this method, it is relatively cheap and excellent for oil extraction. Some short chain alcohols such as ethanol and isopropanol, have been proposed as an alternative solvent for the extraction process because of their greater safety.
Firstly, to get the yield of about 92% of the oil from the hexane extraction process of ohmic heating-stabilized rice bran. About 42.7 to 99.9% yield of oil from rice bran using ethanol to rice bran ratio of 2.5:1 and 4.5:1, and temperature of 60-90°C.
Secondly, increasing the extraction temperature from 40°C to 60°C, and solvent (hexane and isopropanol) to bran ratios (w/w) of 2:1 and 3:1 increased the RBO yield. Extraction at 60°C for ten minutes with 3:1 solvent to bran ratio using hexane solvent yielded about 3.6% more oil, while extraction with isopropanol produces 6.4% more oil than at 40°C. The yield of liquid propane was created to yield about 22.4% of oil in kg of rice bran at 0.76 MPa and ambient temperature.
Thirdly, extracted RBO with isopropanol and hexane at 40°C for 15 min. The hexane extracts almost 40% more oil than the isopropanol solvent, though increasing the temperature up to 120°C. The yield of hexane solvent did not increase, but the isopropanol extracted 25% more rice bran oil than hexane under similar conditions. About 99 to 99.5% of the oil from solvent extraction from oleiferous seed.
Lastly, the crude Rice bran oil obtained from this extraction procedure, which is mostly further subjected to chemical or physical refining to meet the specifications of food-grade vegetable oil. The organic solvent (usual hexane) mainly is, however, flammable, volatile, toxic and pollutes the environment. Even though the use of hexane for extraction is efficient and widely uses, it has some undesirable as mentioned earlier.
Professional Rice Bran Oil Extraction Machine Manufacturer
Henan Huatai Cereals and Oils Machinery Co., Ltd. has been committed to the production and research and development of grain and oil machinery for 37+ years. It has mature production and manufacturing processes and skilled technical workers for edible oil processing, and is committed to providing customers with high-quality, cost-effective cooking oil equipment. The products are sold to more than a dozen countries and are well received by domestic and foreign customers!
Huatai Oil Machinery specializes in the production of oil equipment, mainly cooking oil press machine, vegetable oil refining equipment, edible oil extraction machine, complete edible oil production lines, etc. From raw material pretreatment to finished oil filling, the equipment models are complete and the quality is good. A variety of specifications and models meet the needs of different customers.
Also, we provide customized services for edible oil plants, from edible oil factory design drawings, equipment location drawings, process flow charts, equipment production and installation, technical operation training and after-sales services, to helps customers solve oil technology problems. Huatai Oil Machinery provides guarantees for the smooth production of the cooking oil plant.
All in all, to consult and purchase rice bran oil extraction machine, you can go to Henan Huatai Cereals and Oils Machinery Co., Ltd. We will send you the complete fetures and specifications of the equipment. Please contact us for the price of Rice Bran Oil Processing Equipment. Welcome to visit our factory and for latest quotation.