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Calcium malate prepared by adopting abalone shell as raw material and preparation method of calcium malate

A calcium malate and abalone shell technology is applied in the directions of carboxylate preparation, carboxylate preparation, chemical instruments and methods, etc., and can solve the problems of difficult control of process conditions and product quality, serious environmental pollution, low production efficiency and the like, Achieve the effect of abundant raw materials, low preparation cost and high production efficiency

Active Publication Date: 2014-07-30
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods all need to calcinate the calcium source first to make milk of lime, the production efficiency is low, the preparation cost is high, the process is cumbersome, the process conditions and product quality are difficult to control, the environmental pollution is serious, the energy consumption is large, and it is not easy to implement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The mixture of variegated abalone and wrinkled abalone shells purchased in the market was not sorted, and 3.62 kg was taken in an extraction tank, 4.0 kg of malic acid solid was added, and 60.1 liters of tap water was added to dissolve calcium ions and algae pigments at room temperature. When carbon dioxide bubbles are generated, the solid and liquid are separated, and the pH value of the filtrate is adjusted to 7.8, and calcium ions are complexed and precipitated, filtered, and the precipitate is dried to obtain calcium malate.

[0034] After testing, the obtained calcium malate has the characteristics of acid-soluble, alcohol-insoluble, slightly alkali-soluble and water-soluble; the purity of calcium malate is 95.1%, of which the calcium ion content is 24.2%, the malic acid root content is 70.9%, and the color value of the pigment is E 496 1% 1cm 1.21; The total yield of calcium malate was 96.6%, the total yield of calcium ions was 95.3%, and the total recovery rate ...

Embodiment 2

[0036] Put the original shell of 7.46 kg wrinkled abalone into the extraction tank, add 54.8 liters of extract solution with a malic acid concentration of 16.93%, dissolve calcium ions and algae pigments at 37°C, and adjust the pH of the filtrate when no carbon dioxide bubbles are generated. The value is 7.0. Calcium ions are complexed and precipitated at room temperature, filtered, and the precipitate is spray-dried to obtain calcium malate.

[0037]After testing, the obtained calcium malate has the characteristics of acid-soluble, alcohol-insoluble, slightly alkali-soluble and water-soluble; the purity of calcium malate is 98.1%, of which calcium ion content is 23.3%, malic acid root content is 74.8%, and the color value of the pigment is E 496 1% 1cm 2.18; The total yield of calcium ions in this process is 96.8%, and the total recovery rate of malic acid is 97.6%.

Embodiment 3

[0039] Put 0.41 kg of broken shells of variegated abalone into the extraction tank, add 53.2 liters of apple juice processing wastewater with a malic acid concentration of 1.51%, and dissolve calcium ions and algae pigments in a boiling water bath. When no carbon dioxide bubbles are generated, solid Separate the liquid from the liquid, adjust the pH value of the filtrate to 10.2, complex and precipitate calcium ions in a boiling water bath, and obtain calcium malate after the precipitate is air-dried.

[0040] After testing, the obtained calcium malate has the characteristics of acid-soluble, alcohol-insoluble, alkali-slightly soluble and water-slightly soluble; the purity of calcium malate is 96.5%, of which the content of calcium ions is 16.2%, and the content of malic acid radicals is 80.3%; The rate was 98.5%, and the total recovery rate of malic acid was 82.3%.

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Abstract

The invention discloses calcium malate prepared by adopting abalone shell as a raw material and a preparation method of the calcium malate. The abalone shell is taken as the raw material, calcium ions and algal pigment are dissolved out by adopting an acid solution, impurities are removed by carrying out solid-liquid separation, calcium ion complex-precipitation is carried out on filtrate by virtue of a substance containing malic acid radical, and then drying is carried out for obtaining calcium malate. The calcium malate production is soluble in acid, insoluble in alchol, slightly soluble in alkali and slightly soluble in water, purity of the calcium malate is more than or equal to 95.1%, calcium ion content is more than or equal to 16.2%, malic acid radical content is more than or equal to 60.1%, and pigment colour value E4961%1cm is less than and equal to 2.18.The preparation method of the calcium malate has the advantages that the calcium ions and the algal pigment can be efficiently dissolved out under the conditions of room temperature, low acid concentration and short time, impurities such as proteins, polysaccharides and the algal pigment can be efficiently removed by virtue of simple steps such as solid-liquid separation and complex-precipitation, purity, yield and quality of the calcium malate can be obviously improved; conception is novel, raw materials are rich, efficiency is high, cost is low, technology is simple, environmental friendliness is realized, implementation is convenient, generalization performance is high, and a new approach is found for high-valued utilization of abalone shell and malic acid resources.

Description

technical field [0001] The invention relates to a method for preparing calcium malate from abalone shells and belongs to the fields of high-value utilization of shell resources and green chemical preparation. It also relates to a method for preparing calcium malate by recovering malic acid from substances containing malic acid radicals, and belongs to the fields of high-value utilization of organic acids and resource recycling. Background technique [0002] Abalone shell, commonly known as Shijuming, is the shell of abalone such as variegated abalone, wrinkled abalone, Australian abalone, ear abalone, sheep abalone and white abalone. It is one of the commonly used medicinal materials in traditional Chinese medicine ("Chinese Pharmacopoeia" 2010 edition). [0003] The structural composition of abalone shell is composed of nacre, prismatic layer, cuticle, amorphous calcium carbonate, algae pigment, and verrucous protrusions formed by bryozoans and lime worms. It is an importan...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C59/245
CPCC07C51/418C07C59/245
Inventor 陈剑锋林筱颖陈浩陈永协
Owner FUZHOU UNIV
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