From crude peanut oil to
standard edible oil needs to go through four basic stages of degumming,
deacidification, decolorization and deodorization.
Step1. Degumming
In this step, we add hot
water to dissolve colloidal impurities in crude peanut oil to remove
excess phospholipids and make the color more vivid and obtain purer
peanut oil;
Step 2. Deacidif ication
Due to the crude oil after degumming still contains excessive free fatty acids , so we need to add alkali to
deacidify, let out the soap stock after settling and obtain acid-base
neutralized refined peanut oil;
Step3. Decolorization
Then, we add white clay as
an adsorbent to remove pigment in the crude oil and filter with a leaf
filter after full reaction to improve the color of the oil and to obtain
refined bleached peanut oil.
Step4. Deodorization
Finally, the odor and part
of free fatty acid in crude peanut oil were removed by distillation to
improve the quality of the peanut oil further and obtain edible oil. After this series of processing, we will finally get edible peanut oil.
Maybe you have a general understanding about the peanut oil refining process , if you have more questions, welcome to c onsult us. Henan Glory Oils & Fats Engineering Co., Ltd will guide you to refining crude peanut oil step by step.
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