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A kind of using poultry egg shells as calcium source to prepare glutamic acid chelated calcium and its preparation method

A technology for chelating calcium glutamic acid and poultry egg shells, which is applied in chemical instruments and methods, cyanide reaction preparation, preparation of organic compounds, etc., can solve the problems of affecting the health of users, residual organic solvents, poor solubility and the like, Achieving the effect of highlighting the calcium absorption effect

Inactive Publication Date: 2015-12-30
王子荣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the utilization of eggshell calcium sources mainly uses acid hydrolysis to extract soluble calcium and high-temperature calcination. The method generally has defects such as acid pollution, environmental pollution, and organic solvent residues [5,6]. Directly using poultry eggshells as calcium There is no report on the preparation of amino acid chelated calcium by the direct reaction between the source and amino acid, and there is no report on the technical scheme of amino acid chelated calcium with high absorption rate that is simply prepared by using an environmentally friendly process using shell calcium sources.
Currently reported amino acid chelated calcium prepared from shellfish and other raw materials is widespread: first, the solubility is poor, only 0.02g of calcium carbonate can be dissolved in 100mL of water, and calcium ions can only be absorbed after neutralization and decomposition by gastric acid; Oysters and shellfish in the offshore, these marine organisms have a strong adsorption effect, not only can absorb a lot of plankton as food, but also can absorb heavy metals polluted in the ocean into shells
Therefore, this shell biological calcium carbonate contains heavy metals, which affects the health of users

Method used

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  • A kind of using poultry egg shells as calcium source to prepare glutamic acid chelated calcium and its preparation method
  • A kind of using poultry egg shells as calcium source to prepare glutamic acid chelated calcium and its preparation method
  • A kind of using poultry egg shells as calcium source to prepare glutamic acid chelated calcium and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment one: Adopt poultry eggshell to prepare glutamic acid chelated calcium as calcium source

[0030] The specific steps of the method for directly preparing glutamic acid chelated calcium by using poultry eggshells as a calcium source are as follows.

[0031] (1) Raw material pretreatment: After collecting poultry eggshells, wash the surface debris with clean water, boil in boiling water for 5-10 minutes, 40-60kHz, ultrasonic 20-30min for the first shell membrane separation, put it in a tunnel type blast drying box and use wind force Separate the shell membrane again, crush it through a 100-mesh sieve to obtain eggshell powder with high purity, and store it at 4°C for later use.

[0032] (2) Mix eggshell calcium powder and glutamic acid at a molar ratio of 1:2 to 1:3, add distilled water at a solid-to-liquid mass ratio of 1:15 to 1:20, adjust the pH value to 6-8 with NaOH, and heat Stir at 60-80°C at a speed of 20-30r / min to keep warm and chelate for 50-70min. ...

Embodiment 2

[0036] Embodiment two: Adopt poultry eggshell to prepare glutamic acid chelated calcium as calcium source

[0037] The specific steps of the method for directly preparing glutamic acid chelated calcium by using poultry eggshells as a calcium source are as follows.

[0038] (1) Raw material pretreatment: After collecting poultry eggshells, wash the surface debris with clean water, boil in boiling water for 5 minutes, 40kHz, and ultrasonically separate the shell and membrane for 20 minutes. 100-mesh sieve to obtain eggshell powder with higher purity, and then store it at 4°C for later use.

[0039] (2) Mix eggshell calcium powder and glutamic acid at a molar ratio of 1:2, add distilled water at a solid-to-liquid mass ratio of 1:15, adjust the pH value to 6 with NaOH, heat to 60°C and keep stirring at a speed of 20r / min Chelation 50min.

[0040] (3) The crude product of the chelation reaction obtained in the above steps is suction-filtered for 5 minutes, and the filter residue ...

Embodiment 3

[0043] Embodiment three: Adopt poultry eggshell to prepare glutamic acid chelated calcium as calcium source

[0044] The specific steps of the method for directly preparing glutamic acid chelated calcium by using poultry eggshells as a calcium source are as follows.

[0045] (1) Raw material pretreatment: After collecting poultry eggshells, wash the surface debris with clean water, boil in boiling water for 10 minutes, 60kHz, and ultrasonic for 30 minutes to separate the shell and membrane for the first time. 100-mesh sieve to obtain eggshell powder with higher purity, and then store it at 4°C for later use.

[0046] (2) Mix eggshell calcium powder and glutamic acid at a molar ratio of 1:3, add distilled water at a solid-to-liquid mass ratio of 1:20, adjust the pH value to 8 with NaOH, heat to 80°C and keep stirring at a speed of 30r / min Chelation 70min.

[0047] (3) The crude product of the chelation reaction obtained in the above steps is suction-filtered for 10 minutes, a...

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Abstract

The invention discloses a method for preparing glutamic acid chelated calcium by using poultry egg shells as calcium sources. By using poultry eggshells as calcium source raw materials, amino acid chelated calcium was prepared by direct reaction, and on the basis of single factor experiments, several key technical parameters such as molar ratio, pH, chelation temperature, and chelation time were analyzed by response surface methodology. Optimal design, determined optimal preparation process conditions are: solution pH 6-8, molar ratio of eggshell powder to glutamic acid 1:2 to 1:3, chelation temperature 60-80°C, chelation time 50-70min , the prepared glutamic acid chelated calcium preparation has been verified to have a prominent calcium absorption effect, the glutamic acid chelation rate is as high as 63.88%, and a highly absorbable active calcium supplement is obtained, with a solubility of 33%-33.4%, 10% aqueous solution It has a neutral pH of 6.0-7.5, good stability, and a calcium content of 10.9%-13.5%, which has a wide range of application values.

Description

technical field [0001] The invention relates to the technical field of preparation of glutamic acid chelated calcium, in particular, the invention relates to the technical field of glutamic acid chelated calcium directly prepared by using poultry eggshell as a calcium source. Background technique [0002] Calcium is one of the essential elements in the human body. It is an important component of human bones, teeth, organs, blood, and muscle tissue. When calcium is lacking in the human body, physiological dysfunction may occur. Amino acid chelated calcium is a compound with a ring structure formed by the coordination reaction of one or more amino acid groups with metallic calcium. It has good chemical and biochemical stability, is easy to be absorbed by the human body, has few side effects, and has high bioavailability. It can achieve the dual effects of supplementing both amino acids and calcium. It is an ideal calcium nutrition enhancer. [0003] Poultry eggshells are rich...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C227/18C07C229/76A61P3/02A61P19/10
Inventor 王子荣彭亦谷逄焕明
Owner 王子荣
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