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Preparation method of microcapsules with ovalbumin-inulin as wall material

A technology of ovalbumin and microcapsules, which is applied in the field of microcapsule preparation, can solve the problems of failure to achieve sustained release effect, damage to embedded materials, poor stability, etc., and achieve both health care effects, beneficial digestion and absorption, and sustained release effects Good results

Active Publication Date: 2020-08-14
WUHAN XUDONG FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the oily core material, the microcapsules of the oil-in-water structure are usually wrapped with an aqueous agent. When selecting the wall material, there are the following problems: (1) the wall material of a single protein is weak in hydrophilicity and the shell The reason for the thinner thickness is poor stability, and the external adverse environment will destroy the embedding; (2) due to the poor embedding effect, which affects the biological activity of the core material and reduces the absorption rate of the human body; (3) due to the single protein macromolecule The reason is that there is a large gap in the shell formed between them, the shell structure is thin, and it cannot be released in the small intestine, and the sustained release effect in the true sense cannot be achieved.
(4) The choice of shell structure only considers that it is harmless to humans or animals, and does not further consider the deep health care effect

Method used

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  • Preparation method of microcapsules with ovalbumin-inulin as wall material
  • Preparation method of microcapsules with ovalbumin-inulin as wall material
  • Preparation method of microcapsules with ovalbumin-inulin as wall material

Examples

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Effect test

preparation example Construction

[0027] Preparation of oily core material:

[0028] Microcapsule core material preparation: prepare 15% (w / v) glutathione aqueous solution, join in the triglyceride of same quality, add 3% (w / w) soybean lecithin as emulsifier, under 12000r / min Disperse at a high speed for 4 minutes to prepare a W / O emulsion, and obtain the glutathione microcapsule core material as the oily core material in the following examples.

Embodiment 1

[0029] Embodiment 1 A method for preparing a novel microcapsule wall material using ovalbumin and inulin as the wall material, the specific steps are as follows:

[0030] (1) dissolving ovalbumin in water, and obtaining an ovalbumin dispersion after magnetic stirring, so that the ratio of ovalbumin is 1.0% w / w;

[0031] (2) Add inulin to the ovalbumin dispersion, the amount of inulin added is 1.0% w / w, the magnetic stirring frequency is 30rpm / min, and the ultrasonic intensity is 180W / cm 2 , sonication time is 1 hour. ;

[0032] (4) adding the oily core material into the ovalbumin-inulin solution in an amount of 5% w / w to obtain a mixed solution;

[0033] (5) The mixed solution of ovalbumin-inulin and oily core material is placed under a high-speed shearing apparatus and sheared for 1 min to obtain colostrum at a speed of 20,000 rpm / min. Quality three times.

[0034] (6) Spray-dry the ovalbumin-inulin and triglyceride mixed emulsion at an air inlet temperature of 170°C, an ...

Embodiment 2

[0036] Embodiment 2 A method for preparing a novel microcapsule wall material using ovalbumin and inulin as the wall material, the specific steps are as follows:

[0037] (1) dissolving ovalbumin in water, and obtaining an ovalbumin dispersion after magnetic stirring, so that the ratio of ovalbumin is 1.2% w / w;

[0038] (2) Add inulin to the ovalbumin dispersion, the amount of inulin added is 1.2% w / w, the magnetic stirring frequency is 40rpm / min, and the ultrasonic intensity is 200W / cm 2 , Ultrasonic time is 2 hours. ;

[0039] (4) adding the oily core material into the ovalbumin-inulin solution in an amount of 10% w / w to obtain a mixed solution;

[0040] (5) Place the mixed solution of ovalbumin-inulin and oily core material under a high-speed shearer and shear it for 1.5min to obtain colostrum at a speed of 25000rpm / min, and then circulate it under a pressure of 12kPa under high-pressure micro-jet Homogenize three times.

[0041] (6) Spray-dry the ovalbumin-inulin and tri...

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Abstract

The invention discloses a preparation method of micro-capsules with ovalbumin-inulin as a wall material, and solves the problems of need-to-be-improved structural stability and functional deficiency of a core-shell structure of existing micro-capsules. A technical scheme of the preparation method of the micro-capsules with the ovalbumin-inulin as the wall material comprises the following steps: (1) dissolving ovalbumin with water, and carrying out magnetic stirring so as to obtain ovalbumin dispersion liquid; (2) adding inulin into the ovalbumin dispersion liquid, carrying out magnetic stirring, and carrying out ultrasonic treatment so as to obtain an ovalbumin-inulin solution; (3) adding an oily core material into the ovalbumin-inulin solution so as to obtain a mixed solution; and (4) performing shearing on the mixed solution by using high-speed shear apparatus so as to obtain colostrum, carrying multiple times of high-pressure micro-jet homogenization, and carrying out spray-drying so as to obtain micro-capsule granules. The preparation method of the micro-capsules with the ovalbumin-inulin as the wall material is simple in processes; and the prepared micro-capsules are stable incore-shell structure, good in sustained-release effects and beneficial for human body digestion and absorption, and have health-caring effects. In addition, the micro-capsules are excellent in embedding rate, conversion rate, efficiency and bioactivity.

Description

technical field [0001] The invention relates to a method for preparing microcapsules, in particular to a method for preparing microcapsules with ovalbumin-inulin as the wall material. Background technique [0002] Microencapsulation technology, referred to as microencapsulation method, usually consists of two parts, namely the embedded core material and the outer coating wall material. It is a modern industrial high-tech developed in recent years and can be widely used in textiles. , spices, cosmetics, printing and dyeing, food and other fields. The principle is to embed solid, liquid or gas materials in microcapsules measured in microns or nanometers, and to control the expected release of the embedded materials under certain conditions. At present, microencapsulation technology is widely used in food, medicine, spices, dyes and other industries. It is well known that the wall material of microcapsules is the key to microencapsulation technology. High-quality wall material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23P10/30A23L29/00A23L29/244A23L33/17A23L33/21A61K9/50A61K47/36A61K47/42
CPCA23L33/17A23L33/21A23P10/30A23V2002/00A61K9/5036A61K9/5052A23V2200/30A23V2250/5428A23V2250/5062A23V2250/55A23V2250/194A23V2250/1842A23V2200/222
Inventor 李述刚王康平韩玲钰耿放黄群王炜清
Owner WUHAN XUDONG FOOD
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