Microencapsulation method for preparing hydrotropic substance serving as core material by using complex coacervation method

A composite coacervation and microencapsulation technology, which is applied in the fields of cosmetics, flavors and fragrances, food, tobacco and printing, can solve problems such as the inability to embed hydrophilic substances, and achieve the ability to strengthen the degree of cross-linking and tolerate adverse conditions , good spherical shape and high efficiency

Inactive Publication Date: 2012-07-18
山东省万兴食品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the combination of the wall material and the core material prepared by the composite coacervation method mainly relies on hydrophobic interactions, it cannot directly embed hydrophilic substances.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 4g of gelatin and 4g of gum arabic, add deionized water to 800g, stir and dissolve into a wall material solution in a 60°C water bath. Weigh 3.2g vitamin C, 6.4g soybean oil, 6.4g Span80 emulsifier, and disperse and homogenize at high speed at 10000r / min for 5 minutes. After stirring, pour the above solution into the wall material solution and stir at a constant temperature of 45°C with a stirring speed of 400r / min. Add 10% acetic acid solution to adjust the pH to 4.0, stir and react for 15 minutes. Use an ice water bath to cool to below 15°C and react for 30 minutes. Adjust the pH to 6.0, add transglutaminase, the enzyme activity is 100U / g, and the dosage is 1 / 4 of the mass of gelatin. Stir at medium speed at room temperature for 4-6 hours.

[0041] The microcapsules prepared under these conditions have a better spherical shape, a smooth wall film and a uniform particle size, and can well embed the core material vitamin C in the capsule. The yield of microcapsul...

Embodiment 2

[0043] Weigh 7.2 g of gelatin and 0.8 g of carboxymethyl cellulose, add deionized water to 800 g, stir and dissolve in a 60°C water bath to form a wall material solution. Weigh 3.2g curcumin, 6.4g olive oil, 6.4g Span80 emulsifier, and disperse and homogenize at high speed for 5 minutes at a speed of 10000r / min. After stirring, pour the above solution into the wall material solution and stir at a constant temperature of 45°C with a stirring speed of 400r / min. Add 10% acetic acid solution to adjust the pH to 4.6, stir and react for 15 minutes. Use an ice water bath to cool to below 15°C and react for 30 minutes. Adjust the pH to 6.0, add transglutaminase, the enzyme activity is 100U / g, and the dosage is 1 / 4 of the mass of gelatin. Stir at medium speed at room temperature for 4-6 hours.

Embodiment 3

[0045] Weigh 7 g of gelatin and 1 g of carboxymethyl cellulose, add deionized water to 800 g, stir and dissolve in a 60°C water bath to form a wall material solution. Weigh 3.2g aspartame, 6.4g peanut oil, and 6.4g Span80 emulsifier, and disperse and homogenize at high speed for 5 minutes at a speed of 10000r / min. After stirring, pour the above solution into the wall material solution and stir at a constant temperature of 45°C with a stirring speed of 400r / min. Add 10% acetic acid solution to adjust the pH to 4.4, stir and react for 15 minutes. Use an ice water bath to cool to below 15°C and react for 30 minutes. Adjust the pH to 6.0, add transglutaminase, the enzyme activity is 100U / g, and the dosage is 1 / 4 of the mass of gelatin. Stir at medium speed at room temperature for 4-6 hours.

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Abstract

The invention relates to a microencapsulation method for preparing a hydrotropic substance serving as a core material by using a complex coacervation method. The method is simple in process and low in cost, and the product has high encapsulation rate. The method comprises the following steps of: (1) weighing specific protein and polysaccharide in a certain ratio, stirring and dissolving in hot water to form a wall material solution; (2) weighing a certain mass of hydrotropic core material substance, adding an oil phase substance and an emulsifier in a certain mass ratio, and performing high-speed dispersion to form water/oil (W/O) emulsion; (3) directly pouring the emulsion into the wall material solution, stirring at the constant temperature of 45 DEG C, regulating pH by using 10 percent acid, and reacting for 15 minutes; (4) cooling to the temperature of below 15 DEG C, regulating the pH to 6.0, and adding glutamine transaminase for solidifying; and (5) filtering to obtain a wet capsule product. A dry microcapsule product can be obtained by freeze drying or spray drying.

Description

Technical field [0001] The invention relates to the food, flavor and fragrance, cosmetics, tobacco and printing industries, and particularly relates to a technology for preparing microcapsules by adjusting pH to initiate a complex cohesion reaction, embedding core materials. The selected core material is a hydrophilic substance, which can be a functional substance: such as water-soluble vitamin C, B vitamins, etc.; it can be a water-soluble dye: such as capsanthin, curcumin, etc.; it can be a food additive: such as preservative Potassium sorbate, sweetener aspartame, etc.; it can also be a water-soluble flavor; it can even be directly embedded in water as a moisturizer or moisturizer for some special products. Background technique [0002] The main functions of microencapsulation are as follows: (1) Improve the physical properties of the substance. After the liquid substance is microencapsulated, it can become a solid powder, which is convenient for storage and transportation, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02
Inventor 张晓鸣吕怡戴清源夏书芹贾承胜
Owner 山东省万兴食品有限公司
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