Preparation method of protein zinc feed additive with extremely high chelation strength

Abstract

The invention relates to a preparation method of a protein zinc feed additive with the extremely high chelation strength. The preparation method comprises the steps that isolated soybean protein and feed-grade zinc sulfate are taken as reaction raw materials, the isolated soybean protein is hydrolyzed to obtain isolated soybean protein hydrolysate, the isolated soybean protein hydrolysate and zinc sulfate generate a chelation reaction under suitable conditions through a water system synthesis method, and the novel protein zinc feed additive with the extremely high chelation strength is prepared. Compared with zinc sulfate and a conventional organic zinc additive, the protein zinc feed additive has the advantages that the product chelation strength is appropriate, the higher biological value is achieved, and environmental pollution caused by zinc emission can be reduced. According to the protein zinc feed additive, the reaction raw materials are low in cost and easy to obtain, the current main organic trace element synthesis process water system synthesis method is adopted, and the advantages of being high in reaction yield (75% or above), good in product chelation strength repeatability (synthesis can be continuously repeated four times, the chelation strength of all products is extremely high, and Qf determination values are close), easy to operate, low in cost and the like are achieved.

Description

technical field [0001] The invention relates to a method for preparing an organic zinc feed additive, in particular to a method for preparing protein zinc with extremely strong chelating strength. Background technique [0002] Trace elements are one of the necessary nutritional elements for animals. In order to solve the shortage of trace elements in animal feed, people have done a lot of work on trace element additives. Zinc is one of the essential trace elements for animals. It has important physiological functions such as promoting growth and development, immune function of the body, and maintaining the integrity of cell membranes. It participates in all aspects of life activities, so it is called "element of life" (Liang Jianguang, 2006). Traditional zinc preparations, such as zinc sulfate and zinc oxide, can destroy vitamins and other active substances in feed, and the absorption and utilization rate of animals is low (only 30-60%), and a large amount of unabsorbed zin...

AI Technical Summary

Problems solved by technology

In recent years, there have been many reports on the synthesis conditions of organic trace elements using liquid phase synthesis (Kong Suifei, 2011; Wu Jiangang et al., 2008; Zhong Guoqing, 2011; Shu Xugang et al., 2014; Guan Haiyue et al., 2008; Zhang Ruihua, 2004) , but the production of extremely strong chelating strength organozinc by the liquid phase synthesis method has not been reported in the domestic and foreign literatures that have been consulted so far.