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Active nano calcium carbonate for food additives and preparation method thereof

A technology of nano-calcium carbonate and food additives, applied in the direction of calcium carbonate/strontium/barium, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of difficult recovery, organic solvent pollution, etc., and achieve good dispersion , good compatibility, and the effect of improving food performance

Inactive Publication Date: 2019-03-01
HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the one-step process has many problems such as organic solvent pollution and difficult recovery, and has not been widely used.

Method used

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  • Active nano calcium carbonate for food additives and preparation method thereof
  • Active nano calcium carbonate for food additives and preparation method thereof
  • Active nano calcium carbonate for food additives and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Accurately weigh 10 parts of undecylenic acid, 2 parts of natural Sophora japonica honey, 8 parts of sodium stearate, 20 parts of ethanol, 18 parts of calcium chloride, and use deionized water to make a calcium chloride aqueous solution with a concentration of 1M and add it with stirring In the reactor of the reflux device, stir at a constant temperature of 30°C to form a transparent solution. Make sodium carbonate into an aqueous solution with a concentration of 1M, in which the molar ratio of calcium ions to carbonate ions is 1:1, slowly add it into the reactor, and stir while adding. After the addition, the system is heated to 55-65°C and stirred Reflux reaction for 20 hours, add the remaining amount of deionized water, stir evenly, cool down and discharge to obtain active nano-calcium carbonate dispersion emulsion, which can be used directly or centrifugally separated, and vacuum-dried to constant weight to obtain active nano-calcium carbonate powder. Put in a desic...

Embodiment 2

[0022] Accurately weigh 0.15 parts of oleic acid, 0.15 parts of ethanol, and 0.1 parts of calcium chloride to make a calcium chloride aqueous solution with a concentration of 0.5M with deionized water, add it to the reactor with a stirring reflux device, and stir at a constant temperature of 30 ° C to form a transparent solution . Make sodium carbonate into an aqueous solution with a concentration of 0.5M, in which the molar ratio of calcium ions to carbonate ions is 1:1, slowly add it into the reactor, stir while adding, after the addition is complete, the temperature of the system is raised to 25-35°C, Stir and reflux for 35 hours, add the remaining amount of deionized water, and stir evenly to obtain an active nano-calcium carbonate dispersion emulsion, which can be used directly or centrifugally separated, and vacuum-dried to constant weight to obtain an active nano-calcium carbonate powder. spare in the device. Observation by transmission electron microscope shows that t...

Embodiment 3

[0024] Accurately weigh 10 parts of stearic acid, 10 parts of sodium stearate, 2 parts of natural jujube flower honey, 18 parts of ethanol, and 18 parts of calcium chloride. Use deionized water to make a calcium chloride aqueous solution with a concentration of 2M and add it to reflux with stirring. In the device reactor, stir at a constant temperature of 30°C to form a transparent solution. According to the molar ratio of calcium ions to carbonate ions is 1:1, slowly add anhydrous sodium carbonate powder into the reactor, and stir while adding. After the addition is completed, the system is heated to 35-45°C, stirred and refluxed for 45 hours, Add the remaining amount of deionized water and stir evenly to obtain an active nano-calcium carbonate dispersion emulsion, which can be used directly or centrifugally separated, and vacuum-dried to constant weight to obtain an active nano-calcium carbonate powder, which is put into a desiccator for subsequent use. Observation by transm...

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Abstract

The invention discloses active nano calcium carbonate for food additives and a preparation method thereof, and belongs to the field of food additives. According to the method, water-soluble salt calcium chloride and sodium carbonate are taken as primary materials, a modifier is taken as a diluter and an emulsifying agent, and active nano calcium carbonate emulsion is prepared by adopting a self-emulsifying system. The emulsion has the advantages that the emulsion can be directly used and can be used by preparing into the active nano calcium carbonate powder, the nano calcium carbonate is suitable for preparing efficient food additives and used as a calcium supplement of high calcium foods of milk products, soybean milk, cheese, cakes and the like, the dispersion performance is good, the use is convenient, and the nano calcium carbonate has no pollution and is safe and reliable.

Description

technical field [0001] The invention relates to an active nano-calcium carbonate for food additives and a preparation method thereof, belonging to the field of food additives. Background technique [0002] At present, food-grade calcium carbonate has been widely used as a calcium supplement for food additives, which can improve product performance and product quality. Usually, because the surface of calcium carbonate contains calcium ions, hydroxyl groups, etc., it presents the characteristics of surface hydrophilic and oleophobic. It is easy to agglomerate in oily food systems such as milk, soy milk, cake ingredients, etc., and surface modification is required to improve its compatibility with the matrix. compatibility. [0003] At present, the surface modification method of nano-calcium carbonate mainly adopts the two-step process of preparing nano-calcium carbonate particles first, and then modifying with a modifier. Although it is effective, the effect is mixed. Becaus...

Claims

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Application Information

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IPC IPC(8): C01F11/18B82Y40/00B82Y30/00A23L29/00
CPCA23L29/015A23V2002/00B82Y30/00B82Y40/00C01F11/183C01P2002/82C01P2004/01C01P2004/64A23V2250/1578
Inventor 褚艳红郭辉庄玉伟赵俊杰邢会华曹艳霞张国宝曹键
Owner HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI
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