Method for preparing modified amino acid chelated iron feed additive

Abstract

The invention discloses a method for preparing a modified amino acid chelated iron feed additive. The method comprises the following steps of: performing hydrolysis reaction on feather powder for 1 to 2 hours at the temperature between 100 and 105 DEG C by adopting an acid enzymolysis method and using 20 to 35 percent sulfuric acid to fully dissolve the feather powder; cooling, adding ferrous sulfate, adding a sodium hydroxide solution for neutralizing, regulating the pH value to be 6.0-6.5, and reacting for 5 to 6 hours at the temperature between 100 and 105 DEG C; and cooling to the temperature of 45 DEG C after reaction, adding a proper quantity of bio-enzyme, reacting for 10 to 12 hours, adding vinegar, montmorillonite powder, polyethylene glycol 4000 and poplar bark powder into the reaction solution, concentrating, drying, and thus obtaining the modified amino acid chelated iron feed additive. By the method, amino acid is small in molecular weight, strong in bonding with the ferrous sulfate and beneficial to absorption of animals and improves the effect. The prepared additive is high in stability. The additive can meet the growth requirement of animals, maintain and regulate the beneficial in-vivo environment for growth of the animals, promote the growth and prevent and reduce diseases.

Description

[0001] technical field [0002] The invention relates to a feed additive, in particular to a preparation method of a modified amino acid chelated iron feed additive, and belongs to the technical field of additives. Background technique [0003] Trace elements are one of the essential nutritional elements for animals, directly participate in almost all physiological and biochemical functions of the body, play an extremely important role in life activities, and are listed as the fifth element of animal nutrition in the feed industry. The way of adding trace elements in feed has become the focus of research in the past ten years. The antagonism between inorganic salts, organic compounds and trace elements is obvious, destroying the nutritional content of vitamins, thereby greatly reducing the absorption effect. Biological nutrition scholars at the University of Utah in the United States have studied the reactions between various minerals, which proves the ion competition of va...

AI Technical Summary

Problems solved by technology

[0006] There are three methods for producing amino acid chelate salts by traditional protein hydrolysis: enzymatic hydrolysis, acid hydrolysis, and acid and alkali hydrolysis. The traditional enzymatic hydrolysis method has a long reaction cycle and low amino acid concentration, while the product of the acid hydrolysis method has a low chelation rate and is stable. poor sex