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Calcium polyaspartate

A technology of calcium polyaspartate and polyaspartic acid, applied in food preparation, food science, application and other directions, can solve the problems of consumption of large stomach acid and side effects

Inactive Publication Date: 2009-08-19
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first-generation calcium supplements, mainly based on inorganic salts, including calcium carbonate, active calcium, and calcium hydrogen phosphate, consume a large amount of gastric acid during the digestion process of the human stomach, and have side effects of varying degrees.

Method used

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  • Calcium polyaspartate
  • Calcium polyaspartate
  • Calcium polyaspartate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Accurately weigh 2.28g of polyaspartic acid and 7.4g of calcium hydroxide, mix them in 80ml of distilled water, stir at room temperature for 2 hours, heat in a water bath to 80°C and filter while hot. The yellow transparent filtrate was adjusted to neutral with 0.1mol / L HCl, evaporated under reduced pressure to remove 30ml of water, added 50% of absolute ethanol, and then became white turbidity, left to stand for 2 hours, then suction filtered, and the solid was naturally air-dried to obtain a light yellow powder - polyaspartic acid Calcium acid. The crude product was dissolved in distilled water and purified by reprecipitation with ethanol.

Embodiment 2

[0038] Accurately weigh 2.28g of polyaspartic acid and 5.6g of calcium oxide, mix them in 80ml of distilled water, stir at room temperature for 2 hours, heat in a water bath to 80°C and filter while hot. The yellow transparent filtrate was adjusted to neutral with 0.1mol / L HCl, evaporated under reduced pressure to remove 30ml of water, added 50% of absolute ethanol, and then became white turbidity, left to stand for 2 hours, then suction filtered, and the solid was naturally air-dried to obtain a light yellow powder - polyaspartic acid Calcium acid. The crude product was dissolved in distilled water and purified by reprecipitation with ethanol.

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Abstract

Preparation of poly-aspartic calcium is carried out by reacting poly-aspartic ammonia acid chain unit with calcium hydroxide or calcium oxide in proportion of 1:5 mol for 2 hrs at room temperature in aqueous solution, depositing by alcohol, thermal filtering, separating, purifying, analyzing element, distributing infrared spectrum and molecular weight, determing ionization degree and surface featuring. It's non-toxic, has polypeptide structure, has slow absorbing speed, long metabolic time and can be used as calcium nutrient enhancer.

Description

technical field [0001] The invention relates to a novel calcium nutrition enhancer and a preparation method thereof. Background technique [0002] Calcium is the most deficient in Chinese dietary nutrients, and the average calcium intake only reaches 50% of the daily supply. The phenomenon of calcium deficiency is more obvious among pregnant women, children, and the elderly. The supplement of human calcium is particularly important. [0003] The first-generation calcium supplements mainly based on inorganic salts, including calcium carbonate, active calcium, and calcium hydrogen phosphate, consume a large amount of gastric acid during the digestion process of the human stomach, and have side effects to varying degrees. Second-generation products such as calcium lactate and calcium gluconate, which are mainly organic acid salts, may also produce glucose and lactic acid in the body. Long-term use of glucose is not good for diabetics, and it is used together with other calcium...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/48A23L1/304A61K31/785A23L33/16
Inventor 李金
Owner BEIJING UNION UNIVERSITY