Question

Match the method/value used for measuring lipid characteristics in Column I with the corresponding properties indicated by them, in Column II. 

• A. P–(2); Q–(1)
• B. P–(1); Q–(2)
• C. P–(1); Q–(1)
• D. P–(2); Q–(2)

Hint:

TBA test → measures oxidation byproducts (unsaturation). Rancimat method → measures resistance to oxidation (induction time).

Answer 1

The Correct Option is A

Step 1: Thiobarbituric acid test (TBA).
- Measures malondialdehyde, a secondary oxidation product of lipids.
- Indicates the extent of lipid peroxidation and hence the degree of unsaturation/oxidation. $⇒$ (2).
Step 2: Rancimat method.
- Measures oxidative stability of fats and oils by determining the induction time until rapid oxidation occurs. $⇒$ (1).
Therefore, the correct match is P–(2), Q–(1) $⇒$ Option (A).