Method for producing coated granule phytase

A production method and technology of phytase, applied in the directions of hydrolase, additional food elements, animal feed, etc., can solve the problems of reducing the vitality of the central structure, restricting the application, losing vitality, etc., to reduce the dosage, weaken the wetting effect, and reduce the water effect of activity

Inactive Publication Date: 2006-05-24
南宁瑞致生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, phytase is often used in the process of feed production, storage and transportation in powder form, and it is easy to lose most of its vitality due to the shearing effect of heat and granule extrusion; at the same time, in the process of feed storage, the added trace elements and phytic acid Enzyme contact affects the central structure of phytase and reduces its activity; also because the powdery enzyme is dusty during use, it limits its application in pellet feed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Phytase powder 35kg, stabilizer 5.0kg, mixed in the granulator container at a speed of 150r / min for 3min, added binder 0.50kg, cutting speed 2500r / min, granulation time 5min, and then in the boiling dryer The granules are rounded by high-speed air beam fluidization. The granulation time is 10 minutes, and the drying temperature is adjusted in stages: the inlet air temperature is 50°C, and the drying time is 10 minutes; then the inlet air temperature rises to 55°C, and the drying time is 5 minutes, and then decreases. The air temperature is 45°C and spray film formation starts, the amount of dry film material is 0.3kg, and the drying treatment time is 15min. The yield of 60-120 mesh particles in the obtained product reaches 88.5%, and the particles start to disintegrate in the solution with a pH value of 5.5- -6.0.

Embodiment 2

[0020] Phytase powder 40.0kg, stabilizer 4.0kg, in the granulator container with rotating speed 150r / min mixing, mixing time 3min, add binder 0.55kg, cutting speed 1500r / min, granulation time 8min, then in In the boiling dryer, the granules are rounded by high-speed air stream fluidization. The granulation time is 10 minutes, and the drying temperature is adjusted in stages: the inlet air temperature is 50°C, and the drying time is 15 minutes; then the inlet air temperature rises to 55°C, and the drying time After 5 minutes, lower the wind temperature to 45°C and start spraying to form a film. The amount of dry film material is 0.5kg, and the drying treatment time is 15 minutes. The yield of 60-120 mesh particles in the obtained product reaches 92.1%, and the particles begin to disintegrate in the solution The pH value is 5.8--6.0.

Embodiment 3

[0022] Phytase powder 40kg, stabilizer 3.0kg, mix in the granulator container at a speed of 300r / min for 3min, add binder 0.55kg, cutting speed 2500r / min, granulation time 5min, and then put in the boiling dryer The particles are rounded by high-speed air beam fluidization, the time is 5 minutes, the air inlet temperature is 55°C, the drying time is 15 minutes, and then the inlet air temperature is lowered to 45°C and the spray film is started. The amount of dry film material is 0.7kg, and the drying treatment After 20 minutes, the yield of 60-120 mesh granules in the obtained product reaches 90.2%, and the granules start to disintegrate in the solution, and the pH value is 6.0.

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Abstract

The production method of coated granular phytase includes the following steps: uniformly mixing phytase and stabilizing agent, slowly adding fully-dissolved binder at the same time of shearing materials, stirring, cutting, kneading and granulating in the granulating machine to obtain granular material, boiling and drying, then using spray method to coat the granular phytase and screening so as to obtain the invented spherical coated granular phytase.

Description

technical field [0001] The invention relates to a production method of coated granule phytase used as a feed additive. technical background [0002] Phytic acid is an anti-nutritional factor ubiquitous in plant feed (as shown in Table 1). It is composed of one molecule of inositol and six molecules of phosphoric acid, and the combined phosphorus is called phytate phosphorus. Monogastric animals cannot secrete corresponding hydrolytic enzymes, so phytate phosphorus is difficult to be utilized; in order to meet the phosphorus demand of animals in feed production, inorganic phosphorus substances need to be added; at the same time, phytic acid has a strong complexing ability, and feed The chelation of medium and trace elements produces phytate which is difficult to be absorbed by monogastric animals; it also forms a complex with protein through electrical neutralization, reducing the digestion and utilization of nutrients in feed. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/189C12N9/16
Inventor 劳泰财
Owner 南宁瑞致生物工程有限公司
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