Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Browning is one of the defects of Casein.
Reason (R): Browning defects in casein arises due to overheating of casein, presence of excess fat in casein, presence of sulphuric acid in casein during drying.
Choose the correct option.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Overheating during drying is a major cause of browning in dairy powders.

Answer 1

The Correct Option is A

Concept: Casein is a milk protein product used in food and industrial applications. Its quality can be affected by processing defects such as browning.

Step 1: Assertion analysis.
Browning defect:
• Causes discoloration
• Reduces quality Thus, Assertion is correct.

Step 2: Reason analysis.
Browning may occur due to:
• Excess heat during drying
• Residual fat causing oxidation
• Chemical reactions due to impurities like acids Thus, Reason is correct.

Step 3: Linking both.
Reason directly explains causes of browning defect.

Step 4: Conclusion.
Both statements correct and Reason explains Assertion.