Question

When fruits and vegetables are brought suddenly to a very low temperature at which all the chemical reactions stop, it is known as -

• A. Freezing
• B. Drying
• C. Fermentation
• D. Pickling

Hint:

Freezing is the most effective method of long-term storage for fruits and vegetables, as it preserves flavor, color, and nutrients.

Answer 1

The Correct Option is A

Step 1: Define the preservation technique.
Freezing preserves food by maintaining it at temperatures significantly below 0°C (typically -18°C or lower). This extreme cold halts enzymatic processes and inhibits the growth of microorganisms, thereby preventing food spoilage.

Step 2: Evaluate the provided options.
- Freezing: Inhibits chemical and microbial activity. This aligns with the definition. Correct. - Drying: Achieved by moisture removal; does not rely on low temperatures. - Fermentation: Involves controlled microbial growth, not the suppression of reactions. - Pickling: Uses agents like salt, vinegar, or oil for preservation, independent of temperature.

Step 3: Determine the correct process.
Based on the analysis, the described preservation method is freezing.

Final Answer: \[\boxed{\text{The process is Freezing.}}\]