Question

The correct sequence of the edible oil refining process is:
A. Dewaxing and degumming
B. Washing by water
C. Neutralisation
D. Bleaching
E. Deodorisation
Choose the correct answer from the options given below:

• A. A, B, C, D, E
• B. A, C, B, D, E
• C. A, C, D, B, E
• D. A, C, D, E, B

Hint:

Oil refining: Remove gums → neutralize → wash → bleach → deodorize.

Answer 1

The Correct Option is B

Concept: Edible oil refining removes impurities such as gums, free fatty acids, pigments and odor-causing compounds through sequential processing steps.

Step 1: Degumming and Dewaxing (A).
First stage removes:
• Phospholipids (gums)
• Waxes

Step 2: Neutralisation (C).
Next:
• Free fatty acids are removed using alkali
• Soap formation occurs

Step 3: Washing (B).
After neutralization:
• Oil is washed with water
• Removes soap and impurities

Step 4: Bleaching (D).
Then:
• Pigments are removed
• Color improves

Step 5: Deodorisation (E).
Finally:
• Odor and volatile compounds removed
• Produces bland, odorless oil

Step 6: Final sequence. \[ A \rightarrow C \rightarrow B \rightarrow D \rightarrow E \] Final Conclusion:
Option (2) is correct.