Which of the following is an algal source of SCP?

Options

A. Candida
B. Methanobacillus
C. Chlorella
D. Saccharomyces

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for an algal source of Single Cell Protein (SCP). SCP refers to protein derived from single-celled organisms, including algae.

2. **Defining SCP**: Single Cell Protein (SCP) is obtained from pure or mixed cultures of microorganisms such as algae, bacteria, and yeast. It is a rich source of protein, typically containing 30% to 70% protein by dry mass.

3. **Composition of SCP**: SCP is not only rich in proteins (60% to 72%) but also contains essential vitamins, amino acids, minerals, and some crude fibers. These components make SCP a valuable food source.

4. **Identifying Algal Sources**: The question specifically seeks algal sources. Common algal sources of SCP include:
- **Chlorella**: A green microalga known for its high protein content.
- **Spirulina**: A blue-green alga (cyanobacteria) that is also rich in protein.
- **Climacodium**: Another type of algae known for its protein content.

5. **Evaluating Options**: The question provides several options, and we need to identify which one is an algal source:
- **Chlorella**: Algal source of SCP.
- **Spirulina**: Algal source of SCP.
- **Climacodium**: Algal source of SCP.
- Other options like **Methanobacillus** and **Saccharomyces** are not algal sources.

6. **Conclusion**: Based on the information, the correct answer to the question is **Chlorella**, as it is a well-known algal source of SCP.

### Final Answer:
**Chlorella** is an algal source of Single Cell Protein (SCP).

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