Fermentation was first discovered by

Options

A. Louis Pasteur
B. Buchner
C. Dutrochet
D. Gay Lussac

Answer

To solve the question "Fermentation was first discovered by", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Fermentation**:
- Fermentation is a metabolic process that occurs in the absence of oxygen. It involves the breakdown of carbohydrates into alcohol or acids.

2. **Identify the Key Historical Figure**:
- The question asks who first discovered or demonstrated fermentation.

3. **Review the Options Provided**:
- The options given are:
- A) Louis Pasteur
- B) Buchner
- C) Dutruchet
- D) Gay and Luzek

4. **Recall Historical Contributions**:
- Louis Pasteur is known for his experiments in the mid-19th century that demonstrated the fermentation process, specifically how sugars can be converted into alcohol by yeast.

5. **Confirm the Correct Answer**:
- Based on historical records, Louis Pasteur is credited with the first experimental demonstration of fermentation in 1857.

6. **Select the Correct Option**:
- Therefore, the correct answer to the question is **A) Louis Pasteur**.

### Final Answer:
Fermentation was first discovered by **Louis Pasteur**.

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