Maize is rich in

Options

A. Thiamine
B. Lysine
C. Tryptophan
D. Alanine

Answer

### Step-by-Step Solution:

1. **Understanding Maize**: Maize, also known as corn, is a staple food that is consumed worldwide. It has a high nutritional value, which varies depending on the variety of maize.

2. **Nutritional Composition**: Maize is a good dietary source of proteins and fibers. The proteins in maize are primarily found in the endosperm, which constitutes about 60 to 80% of the maize grain.

3. **Xen Protein**: The main type of protein found in maize is called "Xen" protein. Although it is a protein, it is important to note that it lacks two essential amino acids: lysine and tryptophan. These amino acids are essential because they cannot be synthesized by the body and must be obtained through diet.

4. **Vitamins and Minerals**: Maize is low in fat and salt and is enriched with various vitamins and minerals. The vitamins present in maize primarily belong to the B complex group, including thiamine (B1), B3, B5, and B6. Additionally, maize contains essential minerals such as zinc, iron, and phosphorus.

5. **Identifying the Correct Option**: The question asks what maize is rich in among the given options: thiamine, lysine, tryptophan, and alanine.
- **Thiamine (Vitamin B1)**: Present in maize.
- **Lysine**: Lacking in maize due to the absence of essential amino acids in the Xen protein.
- **Tryptophan**: Also lacking in maize for the same reason.
- **Alanine**: While present, it is not considered a major component that maize is particularly rich in.

6. **Conclusion**: Based on the nutritional analysis, the correct answer is that maize is rich in **thiamine** (Vitamin B1).

### Final Answer:
Maize is rich in **thiamine** (Vitamin B1).

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