Preparation method of copper alginate for low molecular weight feed

Abstract

The invention discloses a preparation method of copper alginate for a low molecular weight feed, and belongs to the technical field of preparation of feed additives. The preparation method comprises the following steps: preparing a sodium alginate solution and a copper sulfate solution, slowly dropwise adding the sodium alginate solution into the ultrasonically dispersed copper sulfate solution byusing a peristaltic pump, carrying out a gelation reaction, carrying out spray drying to obtain copper alginate particles, and carrying out gamma-ray irradiation to degrade and modify parts of largemolecular weight copper alginate in order to reduce the molecular weight and finally obtain the copper alginate for the low molecular weight feed. The preparation method has the advantages of simple preparation process, simplicity in operation, no pollution in the irradiation process, pure reaction system, avoiding of the introduction of excessive reactants, no initiator, greenness, environmentalprotection, uniform reaction conditions, solving of the problems of complexity, high molecular weight of the product and difficult absorption by bodies of the product in existing production technologies of copper alginate, and easiness in realization of large-scale promotion and application.

Description

technical field [0001] The invention belongs to the technical field of feed additive preparation, and relates to a preparation method of low molecular weight feed, in particular to a preparation method of copper alginate for low molecular weight feed. Background technique [0002] Copper is one of the essential trace elements for animals. It has the functions of hematopoiesis, metabolism, growth and reproduction, maintenance of production performance, and enhancement of body resistance. It participates in the synthesis of heme, the maturation of red blood cells, the bone formation process of animals, and the pigmentation of hair and fur. And keratinization process, it functions as a component (or as a cofactor) of several important enzymes in animals. At present, copper additives for feed on the market mainly include copper sulfate, basic copper chloride, amino acid copper, etc., but these copper additives have disadvantages such as low absorption rate, large addition amount...

AI Technical Summary

Problems solved by technology

However, copper alginate products have large molecular weight, poor quality, and are not easily absorbed by the body in practical applications, but low-molecular-weight copper alginate has the characteristics of easy absorption and high biological potency, and is a good copper supplement. The produced low-molecular-weight copper alginate has complex production process, high cost, large nutrient loss, low biological potency, pollution in the preparation process, and is not easy to popularize and use. Therefore, a high-efficiency copper additive preparation method has been developed. and animal husbandry are of great importance