Preparation method of microcapsules with ovalbumin-inulin as wall material

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...

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

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