Dewaxing of edible oil refers to the removal of waxy components in edible oil by physical or chemical methods to improve the transparency and quality of oil products. Most vegetable oils contain different amounts of wax, mainly from the husk of oil seeds. The husk contains high wax content, and th…

Edible oil is an indispensable part of our daily diet, and it is indispensable for cooking, frying or cold salad. However, many people may not be familiar with “deodorization” in the processing technology of edible oil. So, do all edible oils need deodorization? Actually, not a…

Deodorization of edible oil is a crucial step in the refining process. Its purpose is to remove off-odors, free fatty acids, peroxides, polycyclic aromatic hydrocarbons, and pesticide residues from the oil, bringing them down to safe levels. This process also raises the smoke point of the oil, imp…

Decolorization of edible oil is an important link in the processing of edible oil. Its main purpose is to remove pigments, impurities and some bad smells in oil, so as to improve the quality and appearance of oil. Decolorization method Decolorization of edible oil includes adsorption dec…

Unrefined crude oil contains a certain amount of free fatty acids, and the process of removing free fatty acids from oil is called deacidification. Deacidification methods include alkali refining, distillation, solvent extraction and esterification. Alkali refining and steam distillation (and phys…

Degumming of edible oil is a crucial step in the refining process. Its main purpose is to remove gum-like substances, such as phospholipids, proteins, and other impurities, from the oil. These gums not only affect the appearance and stability of the edible oil but may also have adverse effect…

Sunflower oil is a common vegetable oil, which is widely welcomed because of its high nutritional value and light taste. However, untreated sunflower oil may contain impurities and ingredients that are not suitable for human consumption, so it needs to be refined. The sunflower oil refinery proces…

Edible oil is one of the indispensable and important foods in daily life, and its quality is directly related to people’s health and quality of life. In the refining process of edible oil, dewaxing process is a crucial technical link, which directly affects the appearance, stability and cons…

Sunflower seed oil is a popular vegetable oil, which is mainly used in cooking and food processing. There are two main methods to make sunflower seed oil: pressing method and solvent extraction method. These two methods have their own characteristics, and there are many steps in the production pro…

Palm oil is a kind of vegetable oil widely used in food, cosmetics and industry. However, in the refining process, some technical problems may be encountered, which not only affect the product quality, but also may lead to an increase in production costs. The following are common problems and solu…