Food preservation has enabled humans to consume seasonal fruits throughout the year. Which of the following technique is not used to preserve fruits?

Options

A. Drying and jellying
B. Canning and bottling
C. Addition of sugar
D. Addition of salt

Answer

To solve the question regarding which technique is not used to preserve fruits, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which technique is NOT used for preserving fruits. This is a negative question, so we need to identify the incorrect option among the given choices.

2. **Review Common Preservation Techniques**:
- **Drying**: This method removes moisture from fruits, preventing microbial growth and allowing them to be stored for longer periods. It is a common technique for preserving fruits.
- **Gelling**: This involves cooking fruits with sugar to create jams or jellies. This method is widely used for preserving fruits.
- **Canning and Bottling**: This method involves sealing fruits in jars or cans after heating them to kill bacteria and vacuum sealing them. This is also a common preservation method.
- **Addition of Salt**: While salt is used for preserving some foods (like vegetables and fish), it is generally not used for fruits due to their sweet nature and the potential to alter their flavor negatively.

3. **Identify the Incorrect Technique**: Based on the review, the addition of salt is not a technique used to preserve fruits effectively. Therefore, it is the correct answer to the question.

4. **Conclusion**: The technique that is NOT used to preserve fruits is the addition of salt.

### Final Answer:
The technique that is NOT used to preserve fruits is **Addition of Salt**.

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