Corn oil is widely used to make nutritionally enhanced edible oil or cooking oil, lubricants, biodiesel, fuel, cosmetics and oil-based or oil-containing chemical products. The extracted corn meal is usually made into enhanced animal feed rations, snack food, blended food products, cosmetics and fermented broth additives.
Crude corn oil is filtered and then degummed. In steam degumming, steam is introduced at a volume of no more than 3% of oil and is absorbed by lecithin or other gums, making them heavy enough to be removed by centrifugation. In alkali degumming, a heated sodium hydroxide solution is used to absorb the gums and also neutralize any free fatty acids, followed by “washing” the oil with hot water to remove any soap formed in the process. By-products of the alkali process are sold as soap stock.
Corn oil is “bleached” with clay that has been “activated” with acid wash to remove any metals native to the clay. As a result, the clay absorbs color pigments, residual soap products and metal ions from the corn oil. The clay is then removed from the oil by filtration. If a partially hydrogenated product, such as margarine or shortening, is produced in this process, the heated oil is exposed to hydrogen gas under pressure. The oil is refrigerated to crystallize any waxes, which are later removed by filtration. A continuous stream steam treatment deodorizes the oil in a distillation tower, carrying any remaining impurities out the top of the tower with the rising steam as the finished oil is removed from the bottom.
Corn Oil Processing Plant
Corn oil processing plants are popular worldwide. Below are two pictures of the corn oil processing plant we have established for our customer.
Corn oil usually refers to corn germ oil, which contains life essential fatty acids and has a very mild taste. It is also rich of Vitamin E. Like other edible oils, corn oil is widely used for cooking especially for frying, stewing and roasting. Besides, corn germ oil can also be used as biodiesel.
Apart from high-quality corn oil processing plants, we also provide our customers with timely delivery, free technical guidance and excellent after-sales service! You can count on us. Your inquiry will be highly appreciated and valued!