Explain the role of bacteria in the following.
Retting of fibre

Explanation

**Step-by-Step Solution:**

1. **Understanding Retting of Fiber**: Retting is a biological process used to separate fibers from the plant material, such as jute. It involves the breakdown of the pectin that binds the fibers together.

2. **Role of Bacteria in Retting**: Bacteria play a crucial role in the retting process. They help in the hydrolysis and fermentation of pectin, which is a polysaccharide that holds the fibers together.

3. **Hydrolysis and Fermentation**: During retting, bacteria break down pectin through hydrolysis, which involves the addition of water to break chemical bonds. Fermentation also occurs, where bacteria convert sugars into acids or alcohols, further aiding in the breakdown of plant material.

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