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Amino acid short peptide chelate and its prepn

A technology of short aspartic acid peptides and chelates, applied in the direction of peptides, etc., can solve undiscovered problems, achieve stable quality, simple process, and facilitate large-scale production

Active Publication Date: 2007-01-03
北京华美天意科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] About aspartic acid short peptide chelate and glutamic acid short peptide chelate, have not found to have literature report so far

Method used

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  • Amino acid short peptide chelate and its prepn
  • Amino acid short peptide chelate and its prepn
  • Amino acid short peptide chelate and its prepn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of Aspartic Acid Short Peptide Chelated Calcium:

[0035] In a 500ml three-neck flask, add 80ml of deionized water, heat and stir to 60°C, add 20g of L-aspartic acid, stir, heat up to above 70°C, add 4.2g of CaO, stir and dissolve at 70-80°C To completely transparent, adjust the pH to 7.0-7.5. After filtration, recrystallization and refining treatment, the polycondensation reaction was carried out at 195°C for 4 hours to obtain a white powdery solid with a yield of 96.46%.

[0036] 2. Product analysis:

[0037] (1) above-mentioned product is carried out elemental analysis with Flash EA 1112 type elemental analyzer, the result is as follows:

[0038] Element (%)

N

C

H

Ca

Calculated

9.21

31.58

3.98

13.17

measured value

9.06

31.05

4.12

12.96

[0039] (2) above-mentioned product is carried out infrared spectrum measurement with Nicolet-8700FTIR instrument, ...

Embodiment 2

[0045] 1. Preparation of Aspartic Acid Short Peptide Chelated Calcium:

[0046] In a 3000ml three-necked flask, add 2000ml deionized water, heat and stir to 60°C, add 504g of L-aspartic acid, stir, heat up to 80°C, add Ca(OH) 2 140g, stir between 85-90°C until the material is completely dissolved and the solution becomes transparent, adjust the pH to 7.0. After filtration, recrystallization and refining treatment, polycondensation reaction was carried out at 190° C. for 5 hours to obtain a white powdery solid with a yield of 94.95%.

[0047] 2. Product analysis:

[0048] (1) above-mentioned product is carried out elemental analysis with Flash EA 1112 type elemental analyzer, the result is as follows:

[0049] Element (%)

N

C

H

Ca

Calculated

8.94

30.67

4.18

12.79

measured value

9.37

30.20

4.30

12.87

[0050] (2) above-mentioned product is carried out infra...

Embodiment 3

[0057] 1. Preparation of Aspartic Acid Short Peptide Chelated Calcium:

[0058] In a 3000ml three-necked flask, add 2000ml of deionized water, heat and stir to 70°C, add 106.2g of CaO, stir, heat up to 80°C, add 504g of L-aspartic acid, stir and heat up to 90-100°C, the material dissolves into a transparent solution, adjust the pH to 7.0-7.5. After filtration, recrystallization and refining treatment, polycondensation reaction was carried out at 195°C for 4 hours to obtain a white powdery solid with a yield of 94.38%.

[0059] 2. , product analysis:

[0060] (1) above-mentioned product is carried out elemental analysis with Flash EA 1112 type elemental analyzer, the result is as follows:

[0061] Element (%)

N

C

H

Ca

Calculated

8.94

30.67

4.18

12.79

measured value

9.33

30.78

3.78

13.43

[0062] (2) above-mentioned product is carried out infrared spectrum measureme...

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Abstract

The present invention provides amino acid short peptide chelate, and the amino acid short peptide chelate may be aspartic acid short peptide chelate in the expression of -[-C8H8O6N2M .X H2O-]n- or glutamic acid short peptide chelate in the expression of -[-C10H12O6N2M .X H2O-]n-, where, M is one of Ca, Mg, Zn or other bivalent transition metal elements; n is constructional unit number, 5-7; and X is water molecule number, 0-3. The present invention also provides the preparation process of the amino acid short peptide chelate, and the preparation process includes the steps of chelation of amino acid with metal oxide, metal hydroxide or metal carbonate in water solution, purification, refining and condensation at high temperature of 160-260 deg.c. The products of the present invention have high purity, stable quality, simple preparation process and low cost, is suitable for industrial production, and may be used widely in food, beverage, feed and cosmetics.

Description

technical field [0001] The invention relates to an amino acid short peptide chelate and a preparation method thereof. It particularly relates to an aspartic acid short peptide chelate and a glutamic acid short peptide chelate and a preparation method thereof. Background technique [0002] A variety of amino acids and metal elements are essential nutrients for human and animal bodies, and these nutrients are mainly ingested from food and feed. After food and feed enter the human body and animal body and are digested by the stomach and small intestine, the protein changes from long-chain peptides to short-chain peptides. The latest research (Lin Huangying "Animal Husbandry Market" No. 8, 2005, 76-78) shows that the theory of protein digestion and absorption has gradually formed some new ideas, that is, the final hydrolyzate of protein in the intestinal cavity, in addition to amino acids, there are also some Small peptides, and small peptides can be absorbed by the intestinal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K7/08C07K7/06
Inventor 赵绘蔡夫柳李立仁
Owner 北京华美天意科技开发有限公司
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