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Preparation method of water-soluble nanometer elemental selenium for livestock and poultry

A nano-element, water-soluble technology, applied in applications, animal husbandry, elemental selenium/tellurium, etc., can solve the problems of low absorption and utilization rate of animals and plants, and achieve the effects of rich production methods, easy reproduction and simple preparation process.

Active Publication Date: 2020-12-18
ZHEJIANG WANFANG BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic selenium is rich in selenium sources, but due to its strong toxicity and low absorption and utilization rate of animals and plants, it has been gradually abandoned in recent years and replaced by organic selenium sources such as selenoproteins and other forms of selenium, such as nano-selenium

Method used

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  • Preparation method of water-soluble nanometer elemental selenium for livestock and poultry
  • Preparation method of water-soluble nanometer elemental selenium for livestock and poultry
  • Preparation method of water-soluble nanometer elemental selenium for livestock and poultry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Produce 50kg nano elemental selenium, comprise the following steps:

[0042] 1) Take by weighing 1.2kg of selenite, 2.5kg of reducing agent, 0.43kg of dispersant, 46kg of carrier and 70kg of water, set aside;

[0043] 2) Add water to sodium nitrite, stir until dissolved at room temperature;

[0044] 3) Add a dispersant to the solution in step 2), turn on the homogenizer, adjust the pressure to 60MPa, stir homogeneously until dissolved, and form a clear, transparent, colorless solution;

[0045] 4) Continue to add the reducing agent to the solution in step 3), the color of the solution after adding the reducing agent gradually turns red for 25 minutes, and stir until the reducing agent is completely dissolved and the reaction is basically completed;

[0046] 5) Add the carrier to the solution in 4), stir and dissolve fully;

[0047] 6) Put the solution in 5) into the centrifugal spray system through a peristaltic pump, adjust the inlet air temperature to 180°C, the out...

Embodiment 2

[0050] Produce 50kg nano elemental selenium, comprise the following steps:

[0051] 1) Take by weighing 1.2kg of sodium selenite, 2.5kg of reducing agent ascorbic acid, 300.43kg of dispersant polyvinylpyrrolidone K, 46kg of carrier modified starch, and 50kg of water, for subsequent use;

[0052] 2) Add water to sodium selenite, stir and dissolve at room temperature;

[0053] 3) Add a dispersant to step 2), turn on the homogenizer, adjust the pressure to 60MPa, stir until it dissolves, and form a clear, transparent, colorless solution.

[0054] 4) Stir continuously, the color of the solution gradually turns red after adding the reducing agent, react for 25 minutes, stir until the reducing agent is completely dissolved, and the reaction is basically completed.

[0055] 5) Add modified starch into the solution in 4), and stir to dissolve fully.

[0056] 6) Put the solution in 5) into the centrifugal spray system through a peristaltic pump, adjust the inlet air temperature to 18...

Embodiment 3

[0058] Produce 50kg nano elemental selenium, comprise the following steps:

[0059] 1) Weigh 1.2kg of sodium selenite, 2.5kg of reducing agent (ascorbic acid 1.7kg, tea polyphenol 0.8kg), dispersant 0.86kg (polysorbate 800.22kg, polyvinylpyrrolidone K300.64kg), carrier 46kg (malt Dextrin 23kg, modified starch 23kg), water 70kg, spare;

[0060] 2) Add water to sodium selenite, stir and dissolve at room temperature;

[0061] 3) Add a dispersant to step 2), turn on the homogenizer, adjust the pressure to 60MPa, stir until it dissolves, and form a clear, transparent, colorless solution.

[0062] 4) Stir continuously, the color of the solution gradually turns red after adding the reducing agent, react for 25 minutes, stir until the reducing agent is completely dissolved, and the reaction is basically completed.

[0063] 5) Add the carrier into the solution in 4), and stir to dissolve fully.

[0064] 6) Put the solution in 5) into the centrifugal spray system through a peristalti...

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Abstract

The invention discloses a preparation method of water-soluble nano elemental selenium for livestock and poultry. The preparation method comprises the following steps: (1) respectively weighing a selenite, a dispersing agent, a reducing agent and a carrier in parts by mass for standby application; 2) adding the selenite into water for dissolving, and performing uniform stirring for standby application; 3) adding the dispersing agent into the solution obtained in the step 2), performing continuous stirring until a colorless transparent solution turns to red without getting darker; 4) performingcontinuous stirring, adding the reducing agent into the solution obtained in the step 3) to make the color of the solution gradually turn red, and performing continuous stirring for 25 min until the reducing agent is completely dissolved, and the reaction is basically finished; and 5) adding the carrier into the solution obtained in the step 4), performing uniform stirring, and then performing shearing and homogenizing. According to the prepared nano elemental selenium, sodium selenite is reduced through the reducing agent, the highly toxic substance is converted into elemental selenium capable of being utilized by animals, and a production way of elemental selenium is enriched. In addition, a stable nano elemental selenium microcapsule is prepared by using the dispersing agent and the carrier and combining the solid dispersion technology.

Description

technical field [0001] The invention belongs to the technical field of feed additives, and in particular relates to a preparation method of water-soluble nanometer elemental selenium for livestock and poultry. Background technique [0002] Inorganic selenium and organic selenium are the main forms of selenium in nature, selenoamino acids, selenonucleotides and selenium-enriched yeast are the representatives of organic selenium, and selenite and selenate are the representatives of inorganic selenium. Inorganic selenium is rich in selenium sources, but due to its strong toxicity and low absorption and utilization by animals and plants, it has been gradually abandoned in recent years and replaced by organic selenium sources such as selenoproteins and other forms of selenium, such as nano-selenium. [0003] Selenium is an essential trace element for animals, and the biggest limitation of its application is its toxicity. Selenium is different from calcium and potassium in that i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B19/02A23K20/20
CPCA23K20/30C01B19/02
Inventor 杨彩梅邵彦婕李慧刘金松曾新福孔随飞
Owner ZHEJIANG WANFANG BIO TECH CO LTD
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