Question

The lye peeling of root vegetables such as beet, carrots and potatoes uses an alkali concentration of:

• A. 1-3% NaOH
• B. 10-15% NaOH
• C. 3-5% NaOH
• D. 5-9% NaOH

Hint:

Always handle concentrated alkali solutions with care due to their strong corrosive nature.

Answer 1

The Correct Option is B

Step 1: Concept
Lye peeling involves using a strong alkali solution to remove the outer layer of root vegetables. This process is commonly used in food processing to improve the appearance and texture of the vegetables.

Step 2: Meaning
The question asks about the appropriate concentration of sodium hydroxide (NaOH) for lye peeling root vegetables like beets, carrots, and potatoes.

Step 3: Analysis
Lye peeling requires a concentrated alkali solution to effectively remove the outer layer without damaging the inner part. A too low concentration would not be effective in removing the peel, while a too high concentration could cause damage or alter the quality of the vegetable. - Option A (1-3% NaOH) is too dilute for efficient peeling. - Option C (3-5% NaOH) and D (5-9% NaOH) are within reasonable concentrations but do not match the given correct answer. - Option B (10-15% NaOH) provides a strong enough concentration to effectively remove the peel while minimizing damage.

Step 4: Conclusion
The appropriate concentration of sodium hydroxide for lye peeling root vegetables such as beets, carrots, and potatoes is 10-15%. Final Answer: (B)