The crude peanut oil extracted by pressing and extraction cannot meet the edible oil standard. It needs to be refined by peanut oil refining machine to meet the national standard requirements and can be put on the market.
The peanut oil refining process needs to go through degumming, deacidification, dehydration, decolorization, deodorization, dewaxing and other processes. What are the main functions of these processes? Huatai Oil Machinery will give you a brief introduction.
1. Degumming: Degumming is also called dephosphorization, which is to remove phospholipids, mucus, resin, protein, sugar, trace metals, etc. in crude oil. Generally, hydration, acid refining or enzyme degumming is used.
2. Deacidification: Generally, the neutralization method of edible grade alkali solution can remove FFA, acid pigments, sulfides, oil-insoluble impurities and trace metals in the oil.
3. Water washing: Wash away the saponins and water-soluble impurities remaining in the alkali-refined oil.
4. Dehydration: Use heating and vacuum drying to remove the moisture in the refined oil.
5. Decolorization: Use activated clay, aluminum silicate, activated carbon and other adsorbents to remove various pigments, colloids, oxides, etc. in the oil.
6. Deodorization or physical refining: Use the vacuum stripping principle to remove low molecular odor substances, FFA, monoglycerides, diglycerides, sulfides and pigment thermal decomposition products in the oil; the purpose of physical refining is mainly to remove FFA.
7. Dewaxing or degreasing: Mainly use freezing, crystallization or winterization crystallization, fractionation to remove wax or solid fat in the oil.
Peanut oil refined through the above-mentioned processes, and then use appropriate filtering equipment to remove solid particles in the oil, clay in the decolorized oil, and catalysts in the hydrogenated oil, and then fill and seal, and it can be sold smoothly on the market.
Vegetable oil refinery of Henan Oil Machinery includes: animal oil refining equipment, rapeseed oil refining machine, peanut oil refining machine, palm oil refinery, sunflower oil refining plant, rice bran oil refining machine and other oil equipment
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