Rice bran oil is rich in various unsaturated fatty acids, oryzanol, vitamin E, sitosterol and other active substances needed by the human body. It is a nutritious edible oil and is widely consumed in developed countries such as Europe, America, and Japan. The content of oryzanol in rice bran oil is rich, ranking among the top edible oils.
During the rice bran oil processing, since the raw material rice bran contains highly active lipase and oxidase, if it is not processed in time, the obtained crude rice bran oil will have too high acid value. High acid value rice bran oil will affect the subsequent oil refining oil yield. Common chemical refining industry will also lead to the loss of physiologically active substances such as oryzanol and vitamin E during the rice bran oil production process, and will produce a large amount of wastewater and saponins, causing pollution to the environment and making it difficult for oil mills to produce standard rice bran oil. Therefore, for rice bran oil, a vegetable oil with high acid value and high wax content, physical refining process can be used to refine and remove impurities.
The deacidification processes used in physical refining and chemical refining are different. Chemical refining uses alkali to neutralize the free fatty acids in the oil to achieve the deacidification effect of the oil; physical refining uses high-temperature distillation to discharge the free fatty acids in the oil with steam. The rice bran oil physical refining process reduces the use of alkali, produces less wastewater and refining consumption in production, has less loss of neutral oil, has a high oil yield, and can reduce the loss of the nutrient oryzanol. It is a refining process very suitable for high acid value oils.
However, the rice bran oil physical refining process also has many disadvantages. For example, it has strict requirements on the degumming effect of oils and fats. The colloid-soluble impurities in the oil will affect the quality of the oil after deacidification, causing the finished oil to recolor. Insufficient degumming will also increase the amount of adsorbent used in the decolorization process, affecting the decolorization effect. The physical refining process is more suitable for processing oils with higher acid values. When the free fatty acid content is less than 2%, the advantages of the physical refining process are not obvious.
To consult and purchase rice bran oil refining equipment, you can go to Henan Huatai Cereals and Oil Machinery Co., Ltd. Huatai Oil Machinery specializes in the production of oil equipment, mainly cooking oil press machine, vegetable oil refining equipment, edible oil extraction machine, edible oil complete production lines, etc. From raw material pretreatment to finished oil filling, the equipment models are complete and the quality is good. The manufacturer can purchase all in one stop. The manufacturer provides customized services for oil plants, from oil plant design, production, installation, operation and other services, free operation training, to provide guarantees for the smooth production of the oil plant. Welcome to visit the factory.
Website: https://ricebranoilpress.com/
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