A kind of coating preparation method of phosphoric acid microporous acidifying agent granules

Abstract

The invention relates to a preparation method of envelopes of phosphoric acid micropore acidulant granules. The preparation method comprises the following specific steps: (1) mixing 10-15 parts of chitosan, 10-15 parts of citric acid, and 10-15 parts of malic acid to obtain a mixture A, screening the mixture with a sieve of 300 meshes, adding lactic acid and polyethylene glycol, uniformly mixing the screened mixture A, the lactic acid and the polyethylene glycol to obtain a mixture B, spraying the mixture B, and pelleting the sprayed mixture B; (2) uniformly mixing 3-5 parts of phosphoric acid, 1-2 parts of formic acid, 8-10 parts of acetic acid, 3-5 parts of propanoic acid, 8-10 parts of butyric acid, hydroxypropyl methyl cellulose, gas phase silicon dioxide and the pelleted mixture B obtained in the step (1) to obtain a mixture C, pelleting the mixture C by using a screw extruder, and oppositely impacting the pelleted mixture C by using airflows during pelleting; (3) and uniformly mixing 1-3 parts of phosphoric acid, 1-3 parts of fumaric acid, 5-10 parts of ethanol, 1-3 parts of benzoic acid, and 20-25 parts of melted polyacrylic resins to obtain a liquid lagging cover for lagging covers. According to the preparation method disclosed by the invention, the preparation technology is simple, the performance is stable, the storage is easy, the quality guarantee period is long, the preparation method has the notable effect of protecting the health of the alimentary canals of livestock, and the bioactivity of the livestock can be obviously improved.

Description

Technical field [0001] The invention relates to the technical field of coating in feed production, in particular to a method for preparing a coating of a feed acidifier. Background technique [0002] Acidulant is a commonly used feed additive, which can increase the acidity of the feed. The acidulant can reduce the pH value of the animal’s gastrointestinal tract, thereby improving the digestive activity of the animal’s gastrointestinal tract. Add an appropriate amount of acidulant to the animal feed , Can activate a variety of digestive zymogen activities, promote the digestion and absorption of nutrients and prevent diarrhea; reduce the impact of heat stress; reduce the risk of pathogenic bacteria such as E. coli and Salmonella spread. [0003] Among them, small molecular organic acids such as formic acid, acetic acid and propionic acid can not only lower the pH value, but also have an inhibitory effect on gram-negative bacteria; large molecular organic acids such as fumaric acid ...

AI Technical Summary

Problems solved by technology

Due to the above problems, its application in feed is limited.

[0004] In the existing technology, in order to alleviate the strong irritation, corrosiveness, volatility and instability of the acidifier, easy to absorb moisture, and the influence of alkaline raw materials in the feed, it is difficult to avoid the influence of alkaline raw materials in the feed.

There are many different coating schemes, such as Chinese patent 2003101063387, this dosage form has a certain improvement on the effect of acidulant, but in the actual production, there are also defects of incomplete coating and high cost, the patent number is CN201110068163. X discloses a kind of compound protective acidulant, described compound protective acidulant is encased by coating material compound acidulant, thereby makes acidulant release slowly in the gastric environment, to the animal's own gastric acid and pepsinogen Secretion is minimized, but the patented acidifier does not work optimally in the intestinal tract