Edible gelatin is made by denaturation and degradation of collagen in bones and skin of pigs, cattle, sheep and other animals. It contains more than 8 L-amino acids, is a pure protein, contains no fat and cholesterol, and is easily absorbed by human body.

Gelatin food made of wool has certain curative effect on some diseases, especially for children's development.

Extended data:

Gelatin can be divided into skin gelatin and bone gelatin according to the extraction raw materials. Skin gelatin can be subdivided into cowhide gelatin, pig skin gelatin and fish skin gelatin. Bone glue can be subdivided into bovine bone glue, pig bone glue, chicken bone glue and fish bone glue.

Among them, fish scale gelatin is a kind of gelatin extracted from fish scales in recent years. It is found that fish scales are rich in collagen, about 20 ~ 40%, and low in fat. The extraction and purification process of gelatin is simple, and the extracted gelatin has light smell and stable properties.

However, fish scale gelatin has the problems of limited raw materials and small output, and it is not the mainstream of gelatin market at present.

Reference source: Baidu Encyclopedia-Edible Gelatin