Production of halal gelatin

Gelatin is derived from collagen, which is an insoluble fibrin in vertebrates and an important component of connective tissues and bones. Gelatin is hydrolyzed from collagen. There are many kinds of gelatin products, and their components are different according to the source of collagen and hydrolysis treatment methods. [halal certification]

Preparation of raw materials

At present, the main raw materials used in the production of halal halal gelatin are bovine bones and cowhide. Non-collagen substances in raw materials, such as inorganic substances (existing in bovine bone), fat and protein (existing in cowhide), were removed by various treatment methods to prepare collagen for extraction.

Bone fresh bone, also called raw bone or raw bone, comes from the products of halal slaughtered cattle and must be purified, degreased, dried, screened and mashed (broken into particles of 1 to 2 cm). The obtained granular bone is treated with dilute hydrochloric acid to remove inorganic salts, and finally a sponge-like product, namely collagen, is obtained. [halal certification]

Leather-cowhide produced after halal slaughter, mainly scrap (rawhide) after trimming process in leather production. Cowhide fragments are depilated with lime water or sulfide solution, and then mechanically loosened. [halal food certification]

In the production of halal gelatin, both bone collagen and cowhide fragments need to be treated with alkaline chemicals for a long time at room temperature, and the commonly used alkaline chemicals are lime water. According to the pretreatment situation, the difference of each batch of materials and the change of the size of cowhide fragments, the soaking time of lime water varies from 8 ~ 12 weeks. The soaking process can be controlled by adjusting the alkalinity of lime water, and the termination time of the whole process can be judged by acid titration or small sample extraction experiment. Collagen is soaked in lime water for a longer time than sheepskin fragments. Lime should be added in the soaking process to maintain its relative excess to compensate for the consumed lime. After soaking, the intermediate product was thoroughly washed with cold water to remove excess lime, and then acidity adjustment and hot water extraction were needed.