Gelatin is also called as Protective colloid

Explanation:
Gelatin is a protein substance derived from collagen, which is found in the connective tissues, bones, and skins of animals. It is commonly used in various food products, pharmaceuticals, and photography.

Protective colloid:
A protective colloid is a type of colloid that helps stabilize the dispersion of particles or droplets in a liquid medium. It prevents the particles from coagulating or settling by forming a protective layer around them. This layer prevents the particles from coming into close contact, thereby maintaining the stability of the colloidal system.

Characteristics of protective colloids:
1. They have a high molecular weight.
2. They form a protective layer around the dispersed particles.
3. They prevent coagulation or settling of particles.
4. They increase the viscosity of the medium.

Gelatin as a protective colloid:
Gelatin acts as a protective colloid due to its ability to form a protective layer around dispersed particles or droplets. When gelatin is added to a liquid medium, it forms a gel-like network that traps and stabilizes the dispersed particles. This prevents the particles from aggregating or settling, maintaining the stability of the colloidal system.

Applications of gelatin as a protective colloid:
1. Food industry: Gelatin is commonly used in food products such as desserts, candies, and jellies to provide texture and stability.
2. Pharmaceutical industry: Gelatin is used in the production of capsules and as a coating for tablets to improve their swallowability and stability.
3. Photography: Gelatin is used as a binder in the production of photographic films and papers to hold the light-sensitive silver halide crystals in place.
4. Industrial applications: Gelatin is used in various industrial applications such as in the production of adhesives, coatings, and paints.

In conclusion, gelatin is referred to as a protective colloid because of its ability to form a protective layer around dispersed particles, preventing their coagulation or settling. This property makes it useful in various applications across different industries.

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