Degumming process in soybean oil refinery
Degumming process: Degumming is the first stage in the refining process. It is sued to separate the gums, phospholipids, proteins etc…that are insoluble in oil when hydrated.
The aim of degumming operation:
1. The emulsifying acion of phospholipids increses oil losses during alkali refining;
2. Gums lead brown discoloration of oil after heating during deodorization;
3. Salts may be formed with cooper, magnesium, calcium and iron, accelerating oxidative degredation of oil;
4. Certain phospholipids, such as lecithin, find widespread industry application.
Types of degumming: Water Degumming, Acid Degumming, Enzymatic Degumming
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