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Organic composite trace element and preparation method thereof

A technology of compounding trace elements and trace elements, which is applied in the directions of additional food elements, animal husbandry, animal feed, etc., can solve the problem of limited chelated trace elements, etc., to facilitate chelation, improve the degree of chelation, and promote growth and minerals. absorption effect

Pending Publication Date: 2022-07-15
CHENGDU SHUXING FEED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current oligochitosan has the problem of limited chelated trace elements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] Second, the present invention provides a preparation method of organic composite trace elements, comprising the following steps:

[0023] The aqueous solution of the trace element precursor and the ligand solution are blended to obtain an organic composite trace element.

[0024] The crude product is obtained by blending, and the crude product is dried and pulverized to obtain organic composite trace elements. Drying and pulverization can be performed using conventional techniques in the art. In this application, the trace element is zinc, and the precursor involved is zinc sulfate.

[0025]

Embodiment 1

[0027] An organic complex trace element including ligand and trace element zinc.

[0028] Chitosan: degree of deacetylation 83%, viscosity average molecular weight 1.32*10 5 .

[0029] The preparation method of the ligand is,

[0030] The mass ratio of resistant starch, chitosan and glutaraldehyde is 1:3:5; chitosan is dissolved in 2% acetic acid solution to obtain a first blending liquid with a mass fraction of 8%; Blend with water to obtain a second blend with a mass fraction of 40%; after the first blend and the second blend are blended, a third blend with a water content of 30% is obtained by drying; The mixture was placed at 75°C and reacted for 4 hours under the condition of humidity of 75%. After the reaction, the fourth treated product was obtained; the fourth treated product and 2% glutaraldehyde solution were blended, stirred and reacted for 3 hours, and then dried. A resistant starch-chitosan graft, ie, the first ligand, was obtained.

[0031] The first ligand i...

Embodiment 2

[0037] The difference between this example and Example 1 is that the mass ratio of resistant starch, chitosan and glutaraldehyde is 1:4:4.

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Abstract

The invention relates to the technical field of material processing, and aims to solve the problem of low chelation degree of chitosan mentioned in the prior art. The invention provides an organic-inorganic composite trace element and a preparation method thereof, the organic-inorganic composite trace element comprises a ligand and a trace element, and the ligand and the trace element are chelated to obtain the organic composite trace element; the ligand is a resistant starch-chitosan graft. The preparation method comprises the following steps: grafting resistant starch and chitosan to obtain a graft; the chelating degree of ligands and trace elements is improved; the resistant starch is difficult to be directly digested and utilized by hosts and can promote growth of intestinal probiotics and absorption of mineral substances; by forming the graft, the chelating degree of the chitosan is improved, and meanwhile, the physiological function regulation and control of animal organisms are also facilitated.

Description

technical field [0001] The invention relates to the technical field of feed processing, in particular to an organic-inorganic composite trace element and a preparation method thereof. Background technique [0002] Chitosan is a high molecular substance obtained by deacetylation of chitin, and is an alkaline polysaccharide. Because the chitosan molecule contains a lot of free -NH 2 And -OH, so it has good coordination ability to metal ions, which makes it have high applicability in the fields of medicine, cosmetics, food chemical industry, agriculture, feed and so on. [0003] In the field of feed, chitosan oligosaccharide chelate uses chitosan oligosaccharide as a buffer ligand to gradually release metal trace elements into the animal body, so that the trace elements can better regulate various functions of the animal body. However, the current chitosan oligosaccharide has the problem of limited chelated trace elements. SUMMARY OF THE INVENTION [0004] <Technical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/20A23K20/163C08G81/00
CPCA23K20/20A23K20/163A23K20/30C08G81/00
Inventor 李芳王韶辉
Owner CHENGDU SHUXING FEED
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