Gelatin is made from the bones and skins of pigs, cows, sheep and other animals. Industrial gelatin, also known as "blue vanadium glue", is extracted from waste leather or leather scraps in leather industry.

Gelatin is the product of moderate hydrolysis and thermal denaturation of collagen. The raw materials for producing gelatin are mainly animal skins, bones and wastes from leather industry. Gelatin, which is common in the market, is mostly made from bovine bone or pig skin. In recent years, due to the emergence of mad cow disease and foot-and-mouth disease, many gelatin production enterprises began to turn to fish skin, fish scales and chicken skin as raw materials to prepare gelatin.

Use of gelatin

Edible gelatin can be used as thickener in pasteurized milk, milk powder, infant formula food, wine and other foods as needed. In addition to thickener, it is also used as food gelling agent, stabilizer, emulsifier, foaming agent, adhesive, binder, clarifier and so on.

Industrial gelatin is generally mainly used in plywood, printing, plastics, electronics, matches, wooden furniture, metallurgical electroplating solution, cosmetic hair gel and other industries. As an industrial raw material, gelatin is not as strict as edible gelatin. It contains a lot of heavy metals harmful to human body, such as chromium and lead. The accumulation of these heavy metals in the human body will cause chronic poisoning.

Reference to the above content: Baidu Encyclopedia-Gelatin