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Phytase-coated pellets and preparation method thereof

A technology of coating pellets and phytase, applied in the application, animal feed, animal feed and other directions, can solve the problems of heat resistance, production process and product cost control, and achieve lower energy consumption and lower air inlet temperature. , the effect of good heat resistance

Active Publication Date: 2012-06-27
QINGDAO VLAND BIOTECH GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing coated pellet type phytase products all have obvious deficiencies in heat resistance, production technology and product cost control.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Mix 20kg starch, 14kg microcrystalline cellulose, 10kg calcium carbonate, 10kg sodium sulfate, 10kg ammonium chloride, 30kg corn steep liquor dry powder, 6kg Tween 80 in a mixer for 10 minutes, add 100kg phytase, continue mixing for 10 minutes, add An appropriate amount of water is made into a wet material, and extruded into a strip material in a twin-screw extruder (screw speed 40rpm). Put the strip-shaped material into the spheronizer, set the speed at 1000rpm, until the strip-shaped material is processed into round pellets and then discharged. Place the pellets in a fluidized bed, dry them under the condition of 40°C air inlet until the temperature of the material reaches 35°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0021] Weigh the coating layer components according to the proportion of polyacrylic acid resin 50%, hydroxypropyl methylcellulose 10%, hydrogenated oil 20%, talcum powder 10%, dextrin 10%, 100kg in total; Add it into ...

Embodiment 2

[0023] Mix 40kg starch, 20kg microcrystalline cellulose, 20kg calcium carbonate, 16kg sodium sulfate, 14kg ammonium chloride, 40kg corn steep liquor dry powder, 10kg Tween 80 in a mixer for 10 minutes, add 40kg phytase, continue mixing for 10 minutes, add An appropriate amount of water is made into a wet material, and extruded into a strip material in a vertical rotary extruder (screw speed 40rpm, extrusion speed 30rpm). Put the strip-shaped material into the spheronizer, set the speed at 800rpm, until the strip-shaped material is processed into round pellets and then discharged. Place the pellets in a fluidized bed, dry them under the condition of 60°C air inlet until the material temperature reaches 50°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0024] Weigh the coating layer components according to the ratio of polyacrylic acid resin 75%, hydroxypropyl methylcellulose 5%, hydrogenated oil 10%, talcum powder 5%, dextrin 5%, totally 20kg; Ad...

Embodiment 3

[0026] Mix 30kg starch, 18kg microcrystalline cellulose, 12kg calcium carbonate, 14kg sodium sulfate, 12kg ammonium chloride, 33kg corn steep liquor dry powder, 7kg Tween 80 in a mixer for 10 minutes, add 74kg phytase, continue mixing for 10 minutes, add Appropriate amount of water is made into wet material, extruded into strip material in screw extruder (screw speed 40rpm). Put the strip-shaped material into the spheronizer, set the speed at 600rpm, until the strip-shaped material is processed into round pellets and then discharged. Place the pellets in a fluidized bed, dry them under the condition of 70°C air inlet until the temperature of the material reaches 65°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0027] Weigh the coating layer components according to the ratio of polyacrylic acid resin 60%, hydroxypropyl methylcellulose 6%, hydrogenated oil 17%, talcum powder 8%, dextrin 9%, totally 40kg; Add it into dichloromethane, mix and disso...

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Abstract

The invention relates to phytase-coated pellets and a preparation method thereof. Each pellet comprises a phytase-containing pellet core and a coating layer wrapped on the same. The phytase-containing pellet core is made of phytase, starch, microcrystalline cellulose, calcium carbonate, sodium sulfate, ammonia chloride, dried cotton steep liquor powder and polysorbate 80. The coating layer is made of polyacrylic resin, hydroxypropyl methyl cellulose, hydrogenated oil, talc powder and dextrin. The phytase-coated pellets are round and smooth and uniform in particle size, particles in 20-40 meshsize are more than 99%, and volume weight of the phytase-coated pellets is 800g / L-900g / L, so that the phytase-coated pellets can highly uniformly mixed with fodder. In addition, the phytase-coated pellets are highly stable and can be stored at normal temperature 25 DEG C for 6 months, and enzyme activity loss is about 3%-5%. Further, the phytase-coated pellets are highly heat-resistant, and retention rate of the phytase-coated pellets can reach 92%-95% under conditions of fodder conditioning temperature more than 85 DEG C, conditioning time 18-40s, and steam pressure 0.6-0.7Mpa.

Description

technical field [0001] The invention belongs to the technical field of coated pellets, and in particular relates to a phytase-coated pellet and a preparation method thereof. technical background [0002] The mineral phosphorus is one of the vital nutrients for animal growth, bone mineralization, immunity, reproduction, etc. Phosphorus mainly exists in the form of phytate phosphorus in feedstuffs based on plant-based raw materials. Phytate-phosphorus is an anti-nutritional factor commonly found in plant-based feeds, but there is no corresponding decomposition of phytate-phosphorus in monogastric animals. of enzymes. The result of this is that on the one hand, a large amount of inorganic phosphorus needs to be added to the feed to supplement the deficiency of phosphorus, which consumes a large amount of mineral resources; , and polluted the environment. Phytase is an enzyme that can hydrolyze phytic acid. It can degrade phytic acid phosphorus into inositol and phosphoric ac...

Claims

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Application Information

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IPC IPC(8): A23K1/165
Inventor 马俊孝刘伟张赞剑史衍鲁卢彦梅
Owner QINGDAO VLAND BIOTECH GRP
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