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Alkaline proteinase coated micro-pill and preparation method thereof

A technology of coating pellets and protease, which is applied in the direction of chemical instruments and methods, detergent compounding agents, detergent compositions, etc., can solve the problems of rough and irregular particles, poor heat and humidity resistance, and poor roundness, and achieve Fast dissolution speed, good heat and humidity resistance, good decontamination effect

Active Publication Date: 2012-05-02
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 alkaline protease products generally have problems such as low enzyme activity, rough and irregular particles, poor roundness, poor heat and humidity resistance, and short shelf life.

Method used

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  • Alkaline proteinase coated micro-pill and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the proportion of alkaline protease powder 20%, dextrin 15%, starch 15%, soybean powder 30%, lactose 1%, sodium dodecylsulfonate 3%, microcrystalline cellulose 6%, corn steep liquor dry powder 10% Weigh each component of the pellet core respectively, 25kg in total, mix in a mixer for 30min, put into a centrifugal granulator, set the rotation speed at 600rpm, fan at 10Hz, use water as binder, and spray speed at 15rpm. After 40 minutes, release the pellets, place them in a fluidized bed, set the air inlet temperature to 40°C, and the air volume to 100m3 / h, dry to a material temperature of 35°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0016] Weigh each group of the coating layer according to the ratio of 30% dextrin, 10% starch, 15% polyvinyl alcohol, 1% sodium dodecylsulfonate, 20% sodium sulfate, 24% titanium dioxide, and 0.01% brilliant blue. Add water to make a suspension with a mass volume ratio of 5%, and pass through a...

Embodiment 2

[0018] According to the proportion of alkaline protease powder 60%, dextrin 5%, starch 10%, soybean powder 10%, lactose 3%, sodium dodecylsulfonate 1%, microcrystalline cellulose 7%, corn steep liquor dry powder 4% Weigh each component of the pellet core, 25kg in total, mix in a mixer for 30 minutes, put into a centrifugal granulator, set the rotation speed at 800rpm, fan at 14Hz, use water as a binder, and spray at a speed of 20rpm. After 30 minutes, release the pellets, place them in a fluidized bed, set the inlet air temperature at 50°C, and the air volume at 120m3 / h, dry until the material temperature is 40°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0019] According to the ratio of 15% dextrin, 30% starch, 5% polyvinyl alcohol, 6% sodium dodecylsulfonate, 13.9% sodium sulfate, 30% titanium dioxide, and 0.1% brilliant blue, each group of the coating layer was weighed. Add water to make a suspension with a mass-to-volume ratio of 7%, and pa...

Embodiment 3

[0021] According to the proportion of alkaline protease powder 30%, dextrin 10%, starch 30%, soybean powder 12%, lactose 2%, sodium lauryl sulfonate 1%, microcrystalline cellulose 10%, corn steep liquor dry powder 5% Weigh each component of the pellet core, 25kg in total, mix in a mixer for 30 minutes, put into a centrifugal granulator, set the rotation speed at 1000rpm, fan at 17Hz, use water as binder, and spray at a speed of 40rpm. After 25 minutes, release the pellets, place them in a fluidized bed, set the inlet air temperature to 80°C, and set the air volume to 160m3 / h, dry until the material temperature is 70°C, release the dried pellets, and obtain the enzyme-containing pellet core.

[0022] According to the ratio of 25% dextrin, 27% starch, 13% polyvinyl alcohol, 5% sodium dodecylsulfonate, 10% sodium sulfate, 20% titanium dioxide, and 0.02% brilliant blue, each group of the coating layer was weighed. Add water to make a suspension with a mass volume ratio of 7%, pass...

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Abstract

The invention relates to an alkaline proteinase coated micro-pill and a preparation method thereof. The alkaline proteinase coated micro-pill comprises 50-90 wt% of enzyme-containing pill core and 10-50 wt% of coating layer coated on the enzyme-containing pill core, wherein the enzyme-containing pill core is prepared from alkaline proteinase, dextrin, starch, bean flour, lactose, sodium dodecylsulfate, microcrystalline cellulose and corn steep liquor dry powder; and the coating layer is prepared from dextrin, starch, polyvinyl alcohol, sodium dodecylsulfate, sodium sulfate, titanium white andbrilliant blue. The alkaline proteinase coated micro-pill has the advantages of round and complete particles, no peculiar smell and uniform size; the 30-60 mesh particles account for more than 99%; and the main properties of the alkaline proteinase coated micro-pill are superior to those of like products abroad: compared with washing powder, the alkaline proteinase coated micro-pill has better mixing uniformity, higher dissolution rate and longer storage time.

Description

technical field [0001] The invention belongs to the technical field of protease-coated pellets, and in particular relates to an alkaline protease-coated pellet and a preparation method thereof. Background technique [0002] Phosphorus-free or low-phosphorus detergents have grown in popularity over the past few years due to the growing problem of water eutrophication caused by phosphorus in detergents. In low-phosphorus or non-phosphorus detergent formulations, due to the reduction of phosphorus-containing additives, the detergency of washing products will decrease. Under the trend of low-phosphating or non-phosphating and low-temperature washing of detergents, adding enzymes is recognized as one of the effective ways to improve washing performance. Enzymes for washing have developed from general auxiliary ingredients to surfactants, additives, etc. A key or conventional component of equal importance. Detergent enzymes are mainly alkaline proteases, which are often added to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/386
Inventor 马俊孝刘伟张赞剑史衍鲁卢彦梅
Owner QINGDAO VLAND BIOTECH GRP
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