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Preparation method of vitamin A acetate microcapsules

A technology of acetate and vitamin, which is applied in the field of preparation of vitamin A acetate microcapsules, which can solve the problems of uniform starch packaging, excessive density difference, and fast sinking of microcapsules, and achieve short drying time and low loss rate. Low, good embedding effect

Pending Publication Date: 2019-09-20
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference in density between microcapsules and petroleum ether, the granulation process will cause the microcapsules to sink too fast and cannot be evenly wrapped by starch.

Method used

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  • Preparation method of vitamin A acetate microcapsules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Weigh 0.5g of BHT and 20g of vitamin A acetate crystals, place them in a 100mL single-mouth bottle, and after nitrogen replacement, melt the vitamin A acetate crystals at 60°C for use;

[0046] (2) Weigh 64g of gelatin with a freezing strength of 40, 16g of glucose (the mass ratio of gelatin to sugar is 4:1), 54.1g of deionized water, mix gelatin, sugar, and deionized water and heat to dissolve at 60°C;

[0047] (3) Cut the gelatin-sugar-water solution with a high-speed shearing machine, drop the melted oil of vitamin A acetate in step (1) into the aqueous solution within 30 minutes, and continue to cut for 15 minutes after the dropping, and maintain the dispersion temperature at At 60°C, an emulsion was obtained with a solid content of 65%, and the mass ratio of the wall material to the core material used was 3.9:1;

[0048](4) Weigh 100g starch and 900g ethyl acetate, put them in a 2L glass flask, prepare 10% starch / ethyl acetate slurry, stir the slurry evenly wit...

Embodiment 2

[0051] (1) Weigh 1.0g of BHA and 50g of vitamin A acetate crystals, place them in a 100mL single-mouth bottle, and after nitrogen replacement, melt the vitamin A acetate crystals at a temperature of 55°C for use;

[0052] (2) Weigh 48g of gelatin with a freezing strength of 60, 16g of glucose (the mass ratio of gelatin to sugar is 3:1), 38.3g of deionized water, mix gelatin, sugar, and deionized water and heat to dissolve at 55°C;

[0053] (3) Cut the gelatin-sugar-water solution with a high-speed shearing machine, drop the melted oil of vitamin A acetate in step (1) into the aqueous solution within 75 minutes, continue to cut for 15 minutes after the addition, and maintain the dispersion temperature at 55°C to obtain an emulsion with a solid content rate of 75%, and the mass ratio of the wall material to the core material used is 1.3:1;

[0054] (4) Weigh 50g starch and 950g propyl acetate, put them in a 2L glass flask, prepare 5% starch / ethyl acetate slurry, stir the slurry ...

Embodiment 3

[0057] (1) Weigh 1.0 g of tocopherol and 20 g of vitamin A acetate crystals, place them in a 100 mL single-mouth bottle, and after nitrogen replacement, melt the vitamin A acetate crystals at a temperature of 65°C for use;

[0058] (2) Weigh 80g of gelatin with a freezing strength of 50, 20g of fructose (the mass ratio of gelatin to sugar is 4:1), 99g of deionized water, mix gelatin, sugar, and deionized water and heat to dissolve at 65°C;

[0059] (3) Cut the gelatin-sugar-water solution with a high-speed shearing machine, drop the melted oil of vitamin A acetate in step (1) into the aqueous solution within 15 minutes, continue to cut for 15 minutes after the addition, and maintain the dispersion temperature at At 65°C, an emulsion was obtained with a solid content of 55%, and the mass ratio of the wall material to the core material used was 4.8:1;

[0060] (4) Weigh 200g starch and 800g butyl acetate, put them in a 2L glass flask, prepare 20% starch / ethyl acetate slurry, sti...

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Abstract

The invention discloses a preparation method of vitamin A acetate microcapsules. The method includes the steps: (1) mixing vitamin A acetate and an antioxidant in a nitrogen atmosphere, and melting; (2) mixing gelatin, sugar and deionized water, heating and dissolving; (3) shearing the gelatin-sugar-water solution with a high-speed shearing machine, slowly adding vitamin A acetate melt oil into an aqueous solution, fully dispersing, and thus obtaining an emulsified liquid; (4) atomizing the emulsified liquid through an atomizer, spraying into starch slurry, and granulating; and (5) filtering at ordinary pressure to obtain a mixture of microencapsules and starch, and then obtaining the water-insoluble vitamin A acetate microencapsules by drying, sieving and crosslinking steps. With adopting of the high-solid-content emulsification system and the dispersed granulation technology in the starch paste, the method has the advantages of short drying time, low operating temperature, low energy consumption, low loss rate of vitamin A acetate in the granulation process, low preparation cost, good embedding effect and high storage stability of the product.

Description

technical field [0001] The invention relates to a preparation method of vitamin A acetate microcapsules, which belongs to the technical field of preparation of nutritional chemical products. Background technique [0002] Vitamin A acetate is an important chemical substance, easily soluble in organic solvents and fats, but insoluble in water. Vitamin A acetate is often used in food and feed additives for nutritional fortification and nutritional structure change. In order to improve the stability of vitamin A acetate during transportation, storage and use, improve the mixing performance, and increase the absorption rate, vitamin A acetate is usually formulated in the market. Vitamin A acetate microcapsules are the most common formulation. [0003] Usually, vitamin A acetate microcapsules are obtained by forming an emulsion of vitamin A acetate and protective colloid, followed by drying or granulation. The active ingredient content of commonly used vitamin A acetate microca...

Claims

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Application Information

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IPC IPC(8): A23L33/155A23K20/174A23P10/20A23P10/30A23L29/10
CPCA23L33/155A23K20/174A23P10/30A23P10/20A23L29/10A23V2002/00A23V2200/222A23V2200/224A23V2200/30A23V2250/5118A23V2250/702
Inventor 程晓波孔令晓张涛吕英东翟文超李莉黎源
Owner WANHUA CHEM GRP CO LTD
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