A carcinogen present in the mould Aspergillus flavus which grows in ground nuts and storage grains is

Options

A. Phenacetin
B. vinyl chloride
C. Aflatoxin
D. Benzidine

Answer

### Step-by-Step Solution:

1. **Identify the Fungus**: The question refers to a specific mold, which is Aspergillus flavus. This fungus is known to grow on ground nuts and storage grains.

2. **Understand the Nature of Aspergillus flavus**: Aspergillus flavus is classified as a saprotrophic and pathogenic fungus. It can produce toxic compounds that are harmful to mammals.

3. **Historical Context**: In 1960, a significant incident occurred where a large number of turkeys died due to consuming food contaminated with Aspergillus flavus. This led to investigations into the toxic compounds produced by the mold.

4. **Discovery of Carcinogens**: The investigations revealed that Aspergillus flavus produces several toxic compounds, which were identified as aflatoxins. These compounds are known to be carcinogenic.

5. **Types of Aflatoxins**: There are four major types of aflatoxins produced by Aspergillus flavus: Aflatoxin B1, Aflatoxin B2, Aflatoxin G1, and Aflatoxin G2. Among these, Aflatoxin B1 is noted to be the most toxic and is specifically hepatocarcinogenic, meaning it can cause cancer in the liver.

6. **Conclusion**: The carcinogen present in Aspergillus flavus is identified as aflatoxins, with Aflatoxin B1 being the most significant due to its potency.

### Final Answer:
The carcinogen present in the mould Aspergillus flavus is **aflatoxins**.

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