Preparation method of cysteamine hydrochloride controlled-release feed additive

Abstract

The invention relates to a preparation method of a cysteamine hydrochloride controlled-release feed additive, which comprises the following steps: weighing 30-70 percent of cysteamine hydrochloride, 25-60 percent of glucose and 1-10 percent of water in percentage by weight, heating and dissolving the compositions into solution, adding alkaline contents in the solution to lead the pH value to be 3.5-6.0 at the temperature of 85-89 DEG C, stirring the solution at the speed of 50-100 turns per minute, and reacting for 60-80min, thereby obtaining a liquid finished product of the cysteamine hydrochloride controlled-release feed additive; adsorbing the liquid finished product with white carbon black for 5-20min to prepare a solid granule finished product; and coating the surface of the solid granule finished product with fatty acid mixture formed by stearic acid, palmitic acid and oleic acid, so as to prepare a coated solid finished product of the cysteamine hydrochloride controlled-release feed additive. The preparation method can more effectively improve the intensity and the reaction completion degree of Maillard reaction, shorten the time of the Maillard reaction, and more effectively remove the smelly egg and bitter taste of cysteamine hydrochloride, so that the mouthfeeling of animals to the product is better, and the stability of the product is excellent.

Description

technical field [0001] The invention relates to the technical field of animal feed, in particular to the technical field of cysteamine hydrochloride feed additives. Background technique [0002] Cysteamine hydrochloride has various physiological functions such as promoting animal growth, and is a feed additive approved by the state. However, cysteamine hydrochloride has the following disadvantages as an animal feed additive: (1), the amino acid in cysteamine is bitter and smelly, and has poor palatability and feed intake for animals; (2), cysteamine salt Cysteamine hydrochloride is directly added into the feed for animals to eat, and the sulfhydryl group in it can damage the animal digestive tract mucosa; (3), cysteamine hydrochloride is easy to deliquescence, and the sulfhydryl group contained in its molecular structure has strong reducibility, and is easy to mix with Oxidation of metal ions loses their physiological activity, making them less stable in storage and use, an...

AI Technical Summary

Problems solved by technology

However, cysteamine hydrochloride has the following disadvantages as an animal feed additive: (1), the amino acid in cysteamine is bitter and smelly, and has poor palatability and feed intake for animals; (2), cysteamine salt Cysteamine hydrochloride is directly added into the feed for animals to eat, and the sulfhydryl group in it can damage the animal digestive tract mucosa; (3), cysteamine hydrochloride is easy to deliquescence, and the sulfhydryl group contained in its molecular structure has strong reducibility, and is easy to mix with Oxidation of me

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