Hydrocolloids Carrageen" and "Algin" are obtained from__________ and ___________respectively

Options

A. Gelidium (red alga), Macrocystis pyrifera (brown alga)
B. Chondrus crispus (brown alga), Gelidium (red alga)
C. Chondrus crispus (red alga), Macrocystis pyrifera (brown alga)
D. Macrocystis pyrifera (red alga), Gracilaria (red alga)

Answer

To solve the question regarding the sources of the hydrocolloids "Carrageen" and "Algin," we can follow these steps:

### Step 1: Understand the Hydrocolloids
- **Carrageen**: This is a sulfated polysaccharide that is primarily used in the food industry as a thickening and stabilizing agent.
- **Algin**: This is also a polysaccharide, found in the cell walls of certain algae, and is used in various industrial applications, including food.

### Step 2: Identify the Source of Carrageen
- Carrageen is obtained from **red algae**. The specific species known for producing carrageen is **Chondrus crispus**. This red alga is commonly referred to as Irish moss and is well-known for its carrageenan content.

### Step 3: Identify the Source of Algin
- Algin is derived from **brown algae**. The specific species that is widely used for algin extraction is **Macrocystis pyrifera**, commonly known as giant kelp. This brown alga is recognized for its high alginate content.

### Step 4: Combine the Information
- Therefore, we can conclude that:
- Carrageen is obtained from **Chondrus crispus** (red alga).
- Algin is obtained from **Macrocystis pyrifera** (brown alga).

### Final Answer
Carrageen is obtained from **Chondrus crispus**, and Algin is obtained from **Macrocystis pyrifera**.

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