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Preparation method of calcium glutamate

A technology of calcium glutamate and glutamic acid, applied in the preparation of organic compounds, cyanide reaction preparation, chemical instruments and methods, etc., can solve the problem of reaction solution escaping from the reactor, unfavorable large-scale production, prolonging reaction time, etc. problems, to achieve fast response rate, increase animal feed intake, and high product purity

Pending Publication Date: 2020-05-08
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when calcium carbonate, shells, egg shells and other calcium sources are dissolved with acid, a large amount of heat will be released, and bubbling will cause bumping. If you do not pay attention to the dosage, the reaction solution will escape from the reactor.
With calcium hydroxide as the calcium source, the solubility is low, and the reaction requires a large amount of solvent to dissolve to improve the reaction efficiency, or prolong the reaction time, which is not conducive to large-scale production
[0005] Calcium glutamate is generally used as an umami agent to replace part of the salt in human food additives, and its application in pigs, poultry, ruminants, and aquatic animals has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of calcium glutamate of the present invention, its preparation method comprises the steps:

[0038] at 8m 3 Add 6.7t sodium glutamate fermented yeast liquid (the mass concentration of water is 90%) in the reaction kettle that mass concentration is 10%, add 10L propylene alcohol, after stirring and warming up to 40 ℃, add the 233.5 t that purity is 96%. kg of calcium chloride was reacted, stirred for 2.5 hours, cooled and crystallized, centrifuged, washed, flash-dried, sprayed and granulated with 1.2% dextrin, passed through 120 mesh, and about 729.8 kg of calcium glutamate product was obtained.

[0039] After detection and analysis, the Ca in the product calcium glutamate 2+ The mass content is 10.4%, the glutamic acid ligand mass content is 75.6%, the dehydration rate of the product at 104°C is 3.3%, the dehydration rate at 180°C is 9.4%, and the yield in terms of glutamic acid is 95.4%, the product purity is 95.3%, that is, the molar ratio of glutamic acid an...

Embodiment 2

[0041] A kind of calcium glutamate of the present invention, its preparation method comprises the steps:

[0042] at 8m 3 Add 4.5t of water into the reaction kettle, add 756.6kg of monosodium glutamate with a purity of 99% into the water, add 9L of propylene alcohol, stir and heat up to 50°C, add 222kg of calcium chloride with a purity of 96% to react, and stir for 1.5h. Cooling and crystallization, centrifugation, washing, flash drying, adding 1% dextrin disc granulation, passing through 10 meshes to obtain about 696.9kg of calcium glutamate product.

[0043] After detection and analysis, the Ca in the product calcium glutamate 2+ The mass content is 10.6%, the glutamic acid ligand mass content is 77.5%, the dehydration rate of the product at 104°C is 1.2%, the dehydration rate at 180°C is 9.6%, and the yield in terms of calcium is 96.3% , the product purity is 97.7%, that is, the molar ratio of glutamic acid to calcium is about 2:1, and the molecular formula is Ca(C 5 h ...

Embodiment 3

[0045] A kind of calcium glutamate of the present invention, its preparation method comprises the steps:

[0046] at 5m 3 Add 3.0t of water into the reaction kettle, add 756.6kg of monosodium glutamate with a purity of 99% into the water, add 3.0L of propenyl alcohol, stir and heat up to 58°C, add 240.5kg of calcium chloride with a purity of 96% to react, and stir for 0.5 h, cooling and crystallization, centrifugation, washing, flash drying, adding 0.8% carboxymethyl cellulose fluidized bed granulation to obtain about 701.1 kg of calcium glutamate product.

[0047] After detection and analysis, the Ca in the product calcium glutamate 2+ The mass content is 10.6%, the glutamic acid ligand mass content is 77.6%, the dehydration rate of the product at 104°C is 1.3%, and the dehydration rate at 180°C is 9.6%, and the yield in terms of glutamic acid is 93.1%, the product purity is 97.8%, that is, the molar ratio of glutamic acid to calcium is about 2:1, and the molecular formula ...

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PUM

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Abstract

The invention discloses a preparation method of calcium glutamate. The method comprises the following steps: adding a glutamate radical-containing substance into water, stirring and heating the obtained solution, adding calcium chloride according to a molar ratio of calcium chloride to the glutamate radical-containing substance of (0.48-0.52):1, carrying out a reaction, cooling after the reactionis completed to crystallize, carrying out solid-liquid separation, and washing, drying and crushing the precipitated crystal to obtain the calcium glutamate. The preparation method has the advantagesof simple process, convenience in operation, safety in product, low cost, high reaction rate, high yield, high product purity and the like. The prepared calcium glutamate can replace other calcium sources, can also be used as a freshener, has better taste than conventional stone powder, calcium lactate and the like, and is free of toxic and harmful substances.

Description

technical field [0001] The invention belongs to the field of calcium glutamate preparation, in particular to a preparation method of calcium glutamate. Background technique [0002] Glutamic acid is one of the basic amino acids for nitrogen metabolism in living organisms, and it is of great significance to the metabolism of animal organisms. L-Glutamic acid, also known as "gluten acid" or written as "fu acid", is ubiquitous in nature, and a variety of foods and human bodies contain glutamate. It is not only one of the structural amino acids of proteins or peptides, but also Free amino acids. [0003] The fermentative production of L-glutamic acid is made from sugar as raw material through microbial fermentation, using the method of "isoelectric point extraction" and "ion exchange resin" separation. Sodium glutamate, commonly known as monosodium glutamate, is an important umami flavor agent, which can enhance the fragrance. It is widely used in food flavoring agents. It can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C227/18C07C227/40C07C227/42C07C227/22C07C229/24A23K20/142A23K20/24
CPCC07C227/18C07C227/40C07C227/42C07C227/22A23K20/142A23K20/24C07C229/24
Inventor 向阳葵黄逸强邓敏陈光伟彭红星夏飞辉苏军
Owner XINGJIA BIO ENG CO LTD