Pickling method for producing bone gelatin

Abstract

The invention belongs to the technical field of bone gelatin production, and particularly discloses a pickling method in bone gelatin production. According to the pickling method disclosed by the invention, the degreased aggregate is pickled by adopting phosphoric acid, and the phosphoric acid is food-grade strong phosphoric acid. According to the pickling method disclosed by the invention, the bone grains are pickled by phosphoric acid to produce the gelatin, so that the quality of the gelatin is improved, the product cost is reduced, the waste of water resources can be reduced, and the recycling of the resources is realized.

Description

technical field [0001] The invention belongs to the technical field of bone gelatin production, and in particular relates to a pickling method in bone gelatin production. Background technique [0002] The existing processing methods for bone raw materials for gelatin mainly include processes such as smashing bones, degreasing, sorting, pickling, liming, neutralization and water washing. Wherein the pickling process is the process of converting bone particles into required osteon. The pickling process removes the minerals and other salts in the defatted bone, and at the same time frees the collagen and bone glue, that is, the formation of osteoin. The main component of osteoin is collagen, and it also contains mucopolysaccharides and a small amount of other proteins. [0003] When using bone grains as raw material to produce gelatin at present, the pickling process generally adopts concentrated hydrochloric acid. According to the process requirements and according to the am...

AI Technical Summary

Problems solved by technology

[0005] 1. Hydrochloric acid is volatile and corrosive to the environment. As long as there is hydrochloric acid in the production process, there will be volatilized hydrogen chloride gas, which will cause a certain degree of corrosion to equipment and pipelines;

[0006] 2. Hydrochloric acid is a strong acid, which will affect the quality of the product; because gelatin is hydrolyzed from collagen, it is affected by acidity and has a certain impact on the viscosity and yield of gelatin. The greater the acidity, the greater the impact on gelatin viscosity and the gelatin yield. The rate is more difficult to control;

[0007] 3. Chloride ions in hydrochloric acid have an impact on environmental protection, because the chlorides generated by the reaction of hydrochloric acid and inorganic substances in bone particles will dissolve in water, and a large amount of chloride-containing wastewater will be produced. With the improvement of environmental protection discharge standards, hydrochloric acid leaching Acid production of gelatin will face great difficulties

Images