In pickles infection is rare due to

Options

A. plasmolysis
B. Decrease in osmotic potential by salt
C. Increase in osmotic potential by salt
D. Decrease in temperature by salt

Answer

### Step-by-Step Solution:

1. **Understanding the Context**: Pickles are preserved in a high concentration of salt. This high salt concentration creates an environment that is unfavorable for the growth of microorganisms, which is why infections in pickles are rare.

2. **Identifying the Mechanism**: The primary reason for the rarity of infection in pickles is due to a process called plasmolysis. Plasmolysis occurs when cells lose water in a hypertonic solution, such as one with high salt concentration.

3. **Explaining Plasmolysis**: When microorganisms are placed in a hypertonic solution (like the salty brine of pickles), water moves out of their cells through a process known as exosmosis. This results in the cells losing water and becoming flaccid.

4. **Consequences of Plasmolysis**: As the cells lose water, the protoplasm within the cells shrinks away from the cell wall. This dehydration leads to the death of the microbial cells, preventing any potential infection.

5. **Conclusion**: Therefore, the correct answer to the question "In pickles, infection is rare due to" is **plasmolysis**. This process effectively inhibits the growth of microorganisms and leads to their death.

### Final Answer:
In pickles, infection is rare due to **plasmolysis**.

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