I. Composite enzyme preparation granulation coating production equipment--Overview

Feed compound enzyme is a new type of active feed additive. It is a mixture of various digestive enzymes. Its main functional factors are endogenous digestive enzymes and exogenous digestive enzymes. Endogenous digestive enzymes mainly include amylase, protease and lipase. Exogenous digestive enzymes are similar enzymes that are not secreted by the digestive tract, including cellulase, pectinase, galactosidase, β-glucanase, and phytase. Exogenous enzymes cannot directly digest hydrolyzed macromolecular nutrients, but hydrolyze or hydrolyze anti-nutritional factors in feeds, indirectly promoting the digestion and utilization of nutrients.

The compound enzyme preparations mainly have the following types: (1) a feed compound enzyme mainly composed of protease and amylase, which is mainly used for supplementing the deficiency of endogenous enzymes in animals; (3⁄4 glucanase-based feed compound enzyme) It is mainly used for feed ingredients mainly based on barley and oats; C3) for feed enzymes based on cellulase and pectinase, the main function is to destroy the plant cell wall, release nutrients from the cells, and eliminate the feed. Anti-nutritional factors, reduce the viscosity of gastrointestinal contents, promote digestion and absorption of animals; (4) feed compound based on cellulase, protease, amylase, glucoamylase, glucanase and pectinase Enzymes, combined with the interaction of various enzymes, have a stronger auxiliary digestion.

Phytase: Phytase is an enzyme that degrades phytic acid and its phytate in feed. Phytate can bind to proteins or amino acids to form phytate-protein or phytate-amino acid complexes, reducing the effective rate of protein and amino acids. The benefits of adding phytase to the feed: hydrolysis of phytic acid and phytate to inositol and phosphate for animal absorption and utilization, thereby increasing phosphorus utilization and bone mineralization, and reducing the addition of exogenous phosphorus in the diet. Reduce the waste of feed; increase the utilization rate of other mineral elements such as calcium, magnesium, copper and zinc, reduce the discharge of waste, and alleviate the threat of environmental pollution; adding phytase to the diet can make the plant Hydrolysis of the acid salt releases the amino acids and proteins chelated with phytate, which reduces the inhibitory effect of phytic acid on proteins or amino acids and improves the utilization of proteins and amino acids.


2, the application of granulation technology in the production of enzyme preparations

1. Application of granulation technology in feed enzyme preparation

At present, pellet feed has become more and more popular and has been recognized by more farmers. However, in general, feed mills have a phenomenon in which the quality of pellet feed is not ideal: high powder content, low hardness, and easy to break. Defects such as rough surface reduce the quality of feed, increase production costs, and affect the efficiency and image of the company.

Since the amount of feed enzyme added is small compared with the amount of the feed itself, the particle size of the feed enzyme is required to be small, and the particle size is generally required to be about 40 mesh, which is advantageous for uniform mixing of the feed enzyme and the feed. It is necessary to be able to prepare a large amount of feed enzyme microparticles (pellets) in a large amount, and there is no excessive temperature generation during the granulation process, so as not to damage the activity of the enzyme, so it is quite difficult to develop a granulation technique and equipment for feed enzymes.

Feed enzyme preparations on the market, such as products produced by Anqi, phytase, medium-temperature amylase, protease, xylanase, etc., mostly based on particles.

2. Application of granulation technology in food enzyme preparation

Food processing companies have strong demand for enzyme preparations. Liquid enzymes generally do not cause sensitization and contamination during use. However, many solid enzyme preparations, such as protease products, are sold directly after spray drying. In the process of using the powder enzyme, the dust is sensitized, which is easy to cause damage to human skin, eyes and respiratory tract, and also causes significant pollution to the production environment.

Granulation technology can solve the problem of solid enzyme sensitization and pollution. Now many food enzyme preparation manufacturers, such as Anqi Company, have paid more and more attention to the granulation research of food enzyme preparations to solve the problems of customers in application.