LQ1 BFD

Question 1

Removes phospholipids (gums) which can cause emulsification and spoilage

Possible reagent: water or dilute acid

Answer 1

Degumming

Question 2

Removes free fatty acids which contribute to rancidity

Possible reagent: Sodium Hydroxide (NaOH) or caustic soda

Answer 2

Neutralizing

Question 3

Removes pigments (like carotenoids and chlorophyll) trace metals and residual soaps

Possible reagent: bleaching earth and activated carbon

Answer 3

Bleaching

Question 4

Removes volatile compounds that cause odor and taste, including aldehydes, ketones, and short-chain fatty acids.

Answer 4

Deodorizing

Question 5

Separates crude oil from oil-bearing seeds (like soybean, palm, coconut, or sunflower).

Answer 5

Extraction of oil