Vegetable oil refining is necessary for vegetable oils & fats so they can be used for cooking and frying foods....
Vegetable oils are obtained from a variety of oil bearing seeds, grains and nuts, such as soyeans, sunflower seeds, corn (maize), rape seeds, peanut (groundnut) kernels, coconut, palm kernels, canola, safflower, castor, mustard etc.
Vegetable oil refining is necessary for vegetable oils & fats so they can be used for cooking and frying foods. Usually there are two ways of refining vegetable oil, they are Physical Refining & Chemical Refining. Physical refining means removal of gum in oil during process of degumming in special method and removing FFA in process of deodorizing by steam. Chemical refining, however, means removing FFA in a chemical way (acid-base neutralization). Gum and soap foot produced is separated by centrifuges. Vegetable oil refining process usually includes the following sections: Degumming, Neutralization, Bleaching, Deodorization and Dewaxing.
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