Organic acid first produce through fermentation is .

Options

A. Propioinc acid
B. Lactic acid
C. Citric acid
D. oxalic acid

Answer

**Step-by-Step Solution:**

1. **Understanding Fermentation**:
- Fermentation is a metabolic process that occurs in the absence of oxygen (anaerobic conditions). During this process, microorganisms convert carbohydrates (like glucose and starch) into smaller organic molecules.

2. **Identifying the Products of Fermentation**:
- The products of fermentation can include various organic acids, alcohols, and gases (like carbon dioxide). Common products include lactic acid, ethanol, and acetic acid.

3. **Determining the First Organic Acid Produced**:
- Among the various organic acids produced through fermentation, lactic acid is recognized as one of the earliest and most significant products.

4. **Microorganisms Involved in Lactic Acid Fermentation**:
- The primary microorganism responsible for the fermentation of lactic acid is Lactobacillus. This bacterium is widely used in the production of yogurt and other fermented dairy products.
- Additionally, certain fungi, such as Rhizopus, can also be involved in the fermentation process.

5. **Conclusion**:
- Based on the information gathered, the first organic acid produced through fermentation is **lactic acid**.

**Final Answer**: The organic acid first produced through fermentation is **lactic acid**.

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