Vietnam-based 100TPD rice bran oil extraction and pretreatment facility being commissioned and installed,rice bran is a by-product of rice processing, adhering to the surface layer of brown rice. Rice bran contains about 15% protein, 16%-22% fat, and 3%-8% sugar. The main fatty acids in the fat are mostly unsaturated fatty acids such as oleic acid and linoleic acid. It also contains a large amount of vitamins, phytosterols, dietary fiber, amino acids, and minerals.

Rice bran oil nutritional value and health benefit

Rice bran oil contains 80%-85% unsaturated fatty acids, with linoleic acid accounting for 38% and oleic acid for 42%. The ratio of linoleic acid to oleic acid is close to the 1:1 ratio recommended by health organizations. The oil also contains nutrients such as oryzanol, squalene, vitamin E, phytosterols, and sterols. Long-term consumption of rice bran oil is beneficial for cardiovascular health, reducing serum cholesterol, and preventing arteriosclerosis. As the public's demand for the quality and functionality of edible oils increases, the extraction process of rice bran oil has become more stringent. High nutritional value and good edible performance make rice bran oil more competitive in the market. Producing rice bran oil that satisfies consumers is a direction that oil machinery manufacturers have been researching.

Degumming process of rice bran oil

To avoid affecting the color of the finished oil, Huatai Oil Machinery Manufacturer recommends that oil mills use a medium-temperature acid-alkali degumming process when designing rice bran oil refining schemes. The crude oil is heated to about 70°C with a heater, phosphoric acid is added, and then it is cooled to about 40°C through heat exchange. A dilute alkali solution is added, mixed, and reacted, then heated and sent to a centrifuge to separate the gum. This process can effectively separate the gum and also remove some free fatty acids, pigments, metal ions, and other impurities.

Rice bran oil decolorization process innovation

The manufacturer has innovatively chosen the silica gel column filtration method for the decolorization process of rice bran oil, which can significantly reduce the color of rice bran oil, and is simple and low-cost. Additionally, hydrogel can be used for decolorization, with citric acid added to increase the adsorption performance and decolorization stability of the gel, achieving good decolorization effects. Some have also researched using membrane technology instead of activated clay for decolorization, reducing the processing cost for factories.

Efforts to improve the refining yield of rice bran oil

During the rice bran oil refining process, most oil mills are concerned about the low refining yield and the severe destruction of nutrients in the oil. Manufacturers have continuously improved equipment to enhance the yield of rice bran oil, reduce refining losses, and strive for stable production of rice bran. The company's oil refining equipment is sold domestically and internationally. Many customers come to visit and inspect the company's strength and attitude, and without hesitation, they establish long-term cooperative relationships after gaining a clear and intuitive understanding.