Soybean Oil Pressing and Refining Process-Ruian Every Machinery Co., Ltd

Soybean Oil Pressing and Refining Process

Datetime: 2022-06-13 12:19:02        Visit: 0

Introduction to Soybean Oil Production

Soybean oil is a prevalent vegetable oil that undergoes several steps, including pressing and refining, during its production from soybeans. Let's discover more about the soybean oil pressing and refining process.

Soybean Oil Pressing

The soybean oil preparation process commences with the pressing of peeled, cleaned, and milled soybeans. The primary soybean oil pressing steps comprise heating, crushing, pressing, dewatering, degumming, and separation. The soybean oil pressing process can be described in the following manner:

 

Heating: Soybeans that have been cleaned are placed in a steam pan and heated. This increases the oil content of the soybeans.

Crushing: The heated soybeans are fed into a crusher to break them into small, fine particles.

Pressing: The small grains of soybeans are pressed and the oil is stored separately from the solids.

 

Soybean oil refining

Degumming: Soybean oil is heated to a certain temperature and alum and other substances are added to degum the oil, making it clearer and more transparent.

Deacidification: Free fatty acids, along with other harmful substances, are eliminated by either alkali refining or physical acid removal techniques, where they are dissolved in water.

Dehydration: The oil and solids obtained from the press are separated, and the oil-water mixture is centrifuged for oil-water separation.

Decolorization: Decolorizers, adsorbents, and other substances are used to eliminate pigments from soybean oil, resulting in a more transparent product.

Deodorization: Soybean oil's fishy odor and taste are eradicated through steam deodorization and physical refining.

In summary, the two important steps in the preparation of soya oil are pressing and refining. Through a rigorous processing process, we can obtain high quality soybean oil that is excellent in taste and nutritional value.

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