Gelatin is made from the skins, bones and tendons of animals through a complex physical and chemical process. It is fat free, high in protein and easily absorbed by the body. It has physical properties such as high viscosity, high freezing power and easy freezing. Pharmaceutical gelatin should be dry, clean, uniform and free of inclusions. It looks like a light yellow to yellow fine particle. It should pass the standard sieve with an aperture of 4 mm and its solution is odorless.

Gelatin used to be called medical gelatin, or pharmaceutical gelatin. Gelatins are mainly used as plasma substitutes, hemostatic sponges, soft and hard capsules, raw material for tablet sugar coating, capsule material for microspheres and microcapsules, and other slow release materials and biofilm materials. Succinyl gelatin for injection is prepared by spray drying and freeze-drying processes and made into solid formulations to improve its stability and ease of transport and storage, and to compensate for the unstable nature of peptide biologics infusions and the inconvenience of transport and storage.

It should be noted that most gelatins and collagens on the market are extracted from connective and hard aggregated tissues of pigs and cattle, which happens to limit the use of gelatin. A significant number of people in the world cannot eat pig products, such as Hebrews, Muslims, and vegetarians. Since gelatin products do not indicate their animal origin, the use of gelatin by these people is limited.

Meanwhile, they also have hydrophilic and immune rejection characteristics, giving them new biomedical properties that have become a hot research topic in recent years. Meanwhile, the application and research of gelatin derivatives and their compounds have attracted increasing attention and research. The 20% lidocaine gelatin fiber mesh not only provides better hemostasis than oxidized cellulose and gelatin sponges, but also has a slow-release analgesic effect.

A soft gel, also known as a soft capsule, is a one-layer, highly sealed capsule. The soft gel skin is made from gelatin and other raw materials in various proportions. The capsule skin is elastic and soft. The use of pigments and sunscreens is selected primarily based on customer requirements and characteristics.

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