The production of gelatin involves several steps, including:
1. Pre-treatment: Raw materials such as animal skin, bones, and connective tissue are washed and cleaned to remove any dirt or impurities. The materials are then soaked in an acid or alkali solution to break down the collagen.
2. Extraction: The pre-treated materials are then boiled in water to extract the collagen. The resulting solution is then filtered to remove any solid particles.
3. Purification: The extracted collagen solution is treated with various chemicals to purify and remove any impurities. This process involves heating, filtering, and washing the solution multiple times.
4. Concentration: The purified collagen solution is then concentrated by removing excess water, which increases the collagen concentration.
5. Gel formation: The concentrated collagen solution is then cooled to form a gel-like substance. The gel is then cut, washed, and dried to produce the final gelatin product.
The production process of gelatin can vary depending on the specific type of gelatin being produced and the manufacturer's production process. However, the steps outlined above are generally followed in most gelatin production processes.