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Load type nano selenium and preparation method

A loaded, nano-selenium technology, applied in food preparation, elemental selenium/tellurium, food science, etc., can solve problems such as narrow safety limits of selenium, neglect of in-depth research on the physical form of selenium, etc.

Inactive Publication Date: 2005-10-26
BEIJING BOAI XIKANG NITRITION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the safety limit of selenium between the optimal concentration and the toxic concentration is very narrow, so the development of low-toxicity and high-efficiency selenium sources has always been the focus of selenium nutrition research
For a long time, the research on selenium sources has been mainly carried out around the chemical forms of selenium (such as sodium selenite, selenium methionine), while ignoring the in-depth study of the physical forms of selenium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1) Grinding the montmorillonite produced in Inner Mongolia to 300 mesh, adding water and stirring evenly, beating in a high-speed mixer to make a suspension slurry with a concentration of 1%;

[0035] 2) the selenium content is montmorillonite weight 1.5% Na 2 SeO 3 , the molar ratio is Na 2 SeO 310 times of Vc was added to the suspension under high-speed stirring, the pH of the reaction system was adjusted to 4, and the reaction was carried out at room temperature for 10 hours;

[0036] 3) select the centrifugation method to dehydrate the suspension slurry;

[0037] 4) drying the product obtained in step 3) at a temperature lower than 80° C., and grinding it to a mesh size greater than 300 to obtain a loaded nano-selenium powder with a water content of less than 10%.

[0038] The transmission electron microscope observation shows that the average particle size of the nano-selenium particles supported by the montmorillonite is 5 nm, and the particle size distributio...

Embodiment 2

[0041] 1) Grinding commercially available hydrotalcite to 400 mesh, adding water and stirring evenly, beating in a high-speed mixer to make a suspension slurry with a concentration of 10%;

[0042] 2) the selenium content is the K of hydrotalcite weight 0.1% 2 SeO 3 , with K 2 SeO 3 Add equimolar mercaptoethanol into the suspension under high-speed stirring, adjust the pH of the reaction system to 6, and react at room temperature for 2 hours;

[0043] 3) Select a filtration method to dehydrate the suspension slurry;

[0044] 4) Add 1% sodium triphosphate to the resultant of step 3), add water and stir to make a 10% ore slurry, and use a spray drying method to obtain a loaded nano-selenium powder with a water content of less than 10%.

[0045] The transmission electron microscope observation shows that the average particle size of the nano-selenium particles supported by the hydrotalcite is 20nm, and the particle size distribution is between 15nm and 25nm. The content of s...

Embodiment 3

[0048] 1) Grinding commercially available synthetic zeolite to 500 mesh, adding water and stirring evenly, beating in a high-speed mixer to make a suspension slurry with a concentration of 5%;

[0049] 2) Na with a selenium content of 1% by weight of the zeolite 2 SeO 4 , the molar ratio is Na 2 SeO 4 5 times of potassium borohydride was added to the suspension under high-speed stirring, the pH of the reaction system was adjusted to 5, and the reaction was carried out at room temperature for 5 hours;

[0050] 3) Select a filtration method to dehydrate the suspension slurry;

[0051] 4) Add 5% sodium pyrophosphate to the resultant of step 3), add water and stir to make a 30% ore slurry, and use a spray drying method to obtain a loaded nano-selenium powder with a water content of less than 10%.

[0052] The transmission electron microscope observation shows that the average particle size of the zeolite-supported nano selenium particles is 60nm, and the particle size distribu...

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Abstract

The present invention discloses a load-type nano selenium and its preparation method. It is a nano-elementary selenium loaded no the porous mineral material, the average particle size of said elementary selenium is less than 100 nano. By weight percentage, selenium content in the porous mineral material is 0.1-1%. It is made up by using porous mineral material as miniature nano reactor and adding reductant into selenium salt to make reduction reaction to obtain the nano elementary selenium, drying-grinding or spray-drying so as to obtain the invented product.

Description

technical field [0001] The invention relates to a loaded nano-selenium and a preparation method thereof, in particular to a porous mineral material loaded nano-selenium elemental selenium and a preparation method thereof. Background technique [0002] Selenium is an essential trace element for animals. It has a variety of important biological functions and significantly affects free radical metabolism, anti-oxidation, immunity, reproduction, apoptosis and endocrine hormones in animals. A variety of animal diseases, such as piglet white muscle disease, mulberry heart, chick exudative quality and livestock reproductive rate decline, are all related to the lack of selenium. Supplementing dietary selenium is now a routine measure to prevent selenium deficiency in my country's aquaculture industry. On the other hand, with the deepening of selenium research, its clinical application has been paid more and more attention by basic medicine and clinical medicine. [0003] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/20A23L33/16C01B19/02
Inventor 夏枚生胡彩虹
Owner BEIJING BOAI XIKANG NITRITION TECH
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