Palm oil refining mainly includes three parts: degumming and deacidification, decolorization, deodorization and dehydration.
The first step in crude palm oil refining: degumming and deacidification are not only used to neutralize free fatty acids, but also react with other oily materials, such as proteins, mucus, phospholipids, pigments, etc. The production of soapstock is a kind of surfactant that has a certain absorption effect, that is to say, it can bring other impurities into the soapstock. In a word, alkali refining has the synthetic effect of deacidification, degumming, deodorization and decolorization.
The second step of crude palm oil refining: decolorization is by vacuum sucking a certain amount of decolorizing agent (activated clay, activated carbon) into the oil, continue stirring and heating, and keep it for about 25 minutes. The oil and clay mixture is injected into a vibrating filter to remove waste soil, decolorize and this is done.
The third step of crude palm oil refining: the deodorization process can remove the bad smell of crude palm oil. Because after high temperature deodorization, dehydration is also completed.
After crude palm oil is refined, you get refined palm oil that has a nice color, good taste and quality.
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