阅读说明：本技术 含有活氧贝壳粉组合物的微胶囊构造 (Microcapsule structure containing active oxygen shell powder composition ) 是由 陈朝义 于 2019-01-14 设计创作，主要内容包括：本发明为一种含有活氧贝壳粉组合物的微胶囊构造,其为一包括活氧贝壳粉核心及水溶保护层外壳包埋的微胶囊构造。其能用来解决活氧贝壳粉水溶性差且杀菌活性不持久的问题,将应用于食品工业添加,能作为天然无毒的食品保鲜防腐剂使用,减少化学防腐剂的用量或使用,提升并改善食品的安全和健康。(The invention relates to a microcapsule structure containing an active oxygen shell powder composition, which is a microcapsule structure embedded by an active oxygen shell powder core and a water-soluble protective layer shell. The active oxygen shell powder preservative can be used for solving the problems of poor water solubility and non-durable bactericidal activity of active oxygen shell powder, can be applied to food industry for addition, can be used as a natural and non-toxic food fresh-keeping preservative, reduces the dosage or use of a chemical preservative, and improves the safety and health of food.)

1. A microcapsule structure containing active oxygen shell powder composition is characterized in that: the active oxygen core layer is formed by a mixture of active oxygen shell powder and an animal and plant protein layer, and a water-soluble protective layer is further coated on the periphery of the active oxygen core layer.

2. The microcapsule construction of claim 1 comprising an active oxygen shell powder composition wherein: the active oxygen shell powder is prepared from shell, by calcining at 1000 deg.C for more than 1 hr, and grinding into fine powder.

3. A microcapsule construction comprising an active oxygen shell powder composition according to claim 2 wherein: the shell is selected from any one of Concha Ostreae, scallop, Meretrix Linnaeus, Corbicula fluminea, nine-hole, and Centipeda maxima or their mixture.

4. The microcapsule construction of claim 1 comprising an active oxygen shell powder composition wherein: the animal and plant protein layer is obtained from any one of animal protein or plant protein or their mixture.

5. A microcapsule construction comprising a composition of live oxygen shell powder according to claim 4 wherein: the animal protein is any one of fish gelatin, whey protein or collagen or their mixture.

6. A microcapsule construction comprising a composition of live oxygen shell powder according to claim 4 or 5 wherein: the vegetable protein is selected from the group consisting of protein, zein, and mixtures thereof.

7. The microcapsule construction of claim 1 comprising an active oxygen shell powder composition wherein: the water soluble protective layer is selected from one of vegetable gum, carbohydrate, or their mixture.

8. A microcapsule construction comprising an oxygenated shell powder composition according to claim 7 wherein: the vegetable gum is selected from one or more of acacia, carageenan, maltodextrin, and mixtures thereof.

9. A microcapsule construction comprising a composition of live oxygen shell powder according to claim 7 or 8 wherein: the carbohydrate is selected from one of sucrose, chitosan, malt, glycerol, or mixture thereof.

10. The microcapsule construction of claim 1 comprising an active oxygen shell powder composition wherein: the microcapsule is prepared by spray drying or low-temperature freeze drying equipment.

Technical Field

The invention relates to a microcapsule structure containing an active oxygen shell powder composition, in particular to a water-soluble dispersed microcapsule structure of active oxygen shell powder, which comprises a microcapsule structure embedded by an active oxygen shell powder core and a water-soluble protective layer shell.

Background

The active oxygen shell powder is fine powder prepared by calcining shell (such as Concha Ostreae, scallop, Meretrix Linnaeus, Corbicula Fluminea, nine-hole shell and Xishi shell) at 1000 deg.C for more than 1 hr, and grinding into fine powder with particle fineness close to standard size of activated carbon. In the course of research, the past japanese scholars found that shells have special bacteriostatic ability, and the bacteriostatic ability is also present in the shells and the activated carbon filter material in the mariculture pond, but the activated carbon filter material has the growth of pythium, which indicates that the shells have bacteriostatic effect which the activated carbon filter material does not have. Besides, researches show that the bacteriostatic ability of the calcined shell powder obtained by high-temperature conversion is far higher than that of the common shell powder. Through observation of a scanning electron microscope, the shell is in a rock stratum sheet shape and is in a pore hill shape after high-temperature calcination treatment, and the pore hill-shaped material has special antibacterial capacity, and the high-temperature calcined shell powder can generate active oxygen substances for sterilization when meeting water.

From the experiment, it was found that when 1 g of calcined shell powder was added to 1 liter of water, it was possible to inhibit food pathogens such as Escherichia coli, Staphylococcus aureus, Listeria, Cactus bacillus, and Salmonella. The calcined shell powder is added into water according to a proper proportion, and can be used for cleaning food materials such as vegetables, fruits, seafood and the like to remove mixed bacteria on the surface, so that the preservation time of the food materials is longer. The residual calcined shell powder water solution can also be used for cleaning a cutter utensil in a kitchen, and pathogenic bacteria of food can be killed only by soaking the cutter utensil in the solution for 3-5 minutes, so that people can eat the solution safely and do not worry about the residue of a chemical cleaning agent.

With the progress of industrial technology and the development of chemical compositions, chemical antibacterial agents, many of which are not decomposed or disappeared and which cause environmental pollution and harm to human health, have been widely used even to the extent of abuse. Therefore, in recent years, the development of natural antibacterial substances has been the focus of research in various aspects, and among them, calcined shell powder is one of the important natural antibacterial substances, and what the public pursued today is not only clean environment, but more importantly, natural antibacterial substances which cannot hurt the body. The calcined shell powder from nature is used for cleaning various utensils and vegetables in a kitchen, so that the quality of the vegetables can be maintained, the pollution of microorganisms can be greatly reduced, the residual chemical cleaning agent is not worried about harming the body health, and the aim of healthy and peaceful eating is achieved.

Microencapsulation is a technique in which solid, liquid or gas is encapsulated and sealed in a micro-gel to protect the encapsulated material, so as to maintain the original color, flavor, performance and biological activity to the maximum extent and prevent the nutrient substances from being destroyed, and the physical barrier between the core material and the external environment is provided by the coating of the wall material, so that the core material can be endowed with the characteristics which have not been existed in the past. Typically, nanocapsules with a diameter of less than 1 micron are called nanocapsules, and those with a diameter between 1 micron and 1 mm are called microcapsules. The capsule consists of a core material embedded inside and a wall material wrapped outside. The ideal wall material has the characteristics of good fluidity at high concentration, capability of emulsifying the core material to form a stable emulsifying system, easy drying and desolventizing, good solubility, edibility and economy.

The application of microencapsulation technology in food microorganism industry can microencapsulate microorganism (lactic acid bacteria), and protect the microorganism from being damaged by gastric acid and bile salt in gastrointestinal tract by embedding treatment. And the protection of the lactic acid bacteria in the freezing process can be improved, and the survival rate can be as high as 80-95%. Microencapsulation techniques can also create diversified products such as "crystal ball yogurt"; or the beauty of the bananas is improved, the banana puree can be fermented by the lactic acid bacteria, but the pectin can interfere the action of the lactic acid bacteria, the lactic acid bacteria are microencapsulated, only glucose, fructose and other monosaccharides can enter the rubber balls and be utilized by the lactic acid bacteria, and the monosaccharides are utilized, so that the banana epidermis can be prevented from turning brown.

Microencapsulation technology is used in the beverage industry to produce solid beverages. In the dairy product industry, additives such as nutrient substances with bad taste can be embedded by using a microcapsule technology, so that the stability of the product can be enhanced, the dairy product has no peculiar smell and no agglomeration, the foam is uniform and fine, the reconstitution property is good, and the quality guarantee period is long. The application of the sugar-free color-changing agent in the candies can adjust the color, the flavor, the seasoning, the nutrition enhancement and the quality improvement of the candies, ensure the stability of the product quality and ensure the lasting color of the candies. In the food additive industry, the additive is used for improving the souring agent, the dough quality improver and the phosphoric acid for meat products. Used for improving flavor and seasoning, which is the most widely applied field of microcapsule technology in food industry, and is commonly found in lemon oil, peppermint oil, garlic oil, curry oil, etc. Microencapsulation can also be used to improve sweeteners such as aspartame, and can also be used to improve the problems of poor solubility and stability of natural pigments, and the solubility and stability of microencapsulated products.

Although the active oxygen shell powder calcined at high temperature is a good natural antibacterial substance, the active oxygen shell powder is only limited to cleaning various utensils in a kitchen, removing vegetable pesticides and sterilizing as far as the water solubility is poor and the bactericidal activity is not durable, and is less used for being added to the food industry and used as a food fresh-keeping preservative, so that the application of the active oxygen shell powder has a great improvement space.

The inventors of the present invention have developed the present invention in order to improve the sterilization defect of the conventional food additives.

Disclosure of Invention

The invention relates to a microcapsule structure containing an active oxygen shell powder composition, which mainly aims to: the problems of poor water solubility and non-persistent bactericidal activity of the active oxygen shell powder are solved, so that the active oxygen shell powder can be applied to food industry as an additive, can be used as a natural non-toxic food fresh-keeping preservative, reduces the dosage or use of a chemical preservative, and improves the safety and health of food. Through microencapsulation of the active oxygen shell powder, the problem of poor water solubility of the active oxygen shell powder can be solved, the water solubility of the active oxygen shell powder is greatly improved, the slow release of active oxygen substances of the active oxygen shell powder can be controlled, and the antibacterial property is prolonged. Just like microencapsulation technology in food industry, can improve the solubility and stability of natural pigment, and then make the active oxygen shell powder achieve the same food fresh-keeping antiseptic effect as food-grade chemical antiseptic, but the source is not toxic chemical substance, but comes from natural nontoxic shell after high-temperature calcination.

Therefore, the natural nontoxic active oxygen shell powder is used, the purpose of achieving the fresh-keeping and corrosion-preventing effects which are comparable to those of food-grade chemical preservatives can be achieved, and the invention provides a water-soluble dispersed microcapsule structure of the active oxygen shell powder, which comprises a core of the active oxygen shell powder and a microcapsule structure embedded by a water-soluble protective layer shell. The invention utilizes the water-soluble protective layer shell formed by mixing the substances such as vegetable gum, carbohydrate and the like to coat the core layer formed by the substances such as active oxygen shell powder, vegetable protein, animal protein and the like, thereby improving the problem of poor solubility and stability of the active oxygen shell powder, increasing the water solubility through the water-soluble protective layer, and slowly releasing the active oxygen through the water-soluble protective layer and the substances such as animal and vegetable protein and the like in the core layer, thereby achieving the effect of prolonging the bactericidal activity.

Food preservation refers to a method for preventing or slowing the spoilage of food, so as to preserve the nutrition and taste of food, reduce the production of microorganisms and toxins, and thereby reduce the incidence of disease caused by the use of food. The principle of food preservation can be divided into two major parts, namely slowing down the growth of microorganisms and deteriorating the food. The invention can slow down the growth of food microorganisms, expand the application field range of the traditional known high-temperature calcined shell powder, is not limited to be used for cleaning and sterilizing, but can be added into food to be used as a natural and nontoxic food preservative and fresh-keeping agent for preserving and keeping the food.

Because the growth of microorganisms is an important reason for food spoilage, the food spoilage is influenced, and the food spoilage speed is influenced by several main factors, namely the number of initial microorganisms, the composition of ingredients in the food and the food preservation condition. The microcapsule active oxygen shell powder has good bactericidal power and dispersibility, and can slowly release to generate bactericidal active oxygen, so that the number of initial microorganisms during food preservation can be reduced, the number of microorganisms in the food is low at the beginning, the time for the microorganisms to be long enough to influence the food quality can be longer, the food preservation effect of the chemical preservative is realized by using natural edible substances, and the purposes of keeping food fresh and prolonging the preservation period are achieved.

The natural antibacterial material such as the microcapsule active oxygen shell powder can also adjust the formula and the concentration according to the food type, thereby providing better antibacterial effect; because different types of foods, such as meat, vegetables, fruits, aquatic products, baked products and the like, even between uncooked foods and cooked foods, the required antibacterial effect is different, and the microcapsule active oxygen shell powder has good water solubility and can slowly release active oxygen for sterilization, so that the microcapsule active oxygen shell powder can be prepared and used in cooperation with the requirements of different food materials, the storage environment can be kept in a stable state, for example, the refrigeration temperature of 4 ℃ is maintained, the packaged foods which can be originally stored for one week can be stored, and the storage period can be prolonged by more than several days after the natural antibacterial materials are added. In addition, in the future, the natural antibacterial materials can be used for keeping the freshness of food in the outgoing catering and the lunch or the homemade meals, and the like, so that people can eat more healthily and quietly.

In order to achieve the purpose, the microcapsule structure containing the active oxygen shell powder composition is a microcapsule structure embedded by an active oxygen shell powder core and a water-soluble protective layer shell. Specifically comprises an active oxygen core layer, an active oxygen shell powder, an animal and plant protein layer and a water-soluble protective layer.

Furthermore, the active oxygen core layer consists of active oxygen shell powder and an animal and plant protein layer.

Furthermore, the active oxygen core layer consisting of active oxygen shell powder and an animal and plant protein layer is arranged in the microcapsule, and a water-soluble protective layer is the shell of the microcapsule, so that the whole embedded particles are spherical.

Further, the microcapsule can be prepared by using spray drying or low-temperature freeze drying equipment.

Furthermore, the active oxygen shell powder can be selected from shell, including any one or mixture of oyster, scallop, clam, nine-hole and Xishi shell, etc., and is calcined at a high temperature of more than 1000 ℃ for more than 1 hour, and then ground into fine powder with the particle fineness close to the standard size of the active carbon.

Further, the animal or vegetable protein layer can be selected from animal protein (such as fish gelatin, whey protein, collagen), vegetable protein (such as soybean protein, corn protein), etc., or their mixture.

Further, the water-soluble protective layer may be selected from one or a mixture of vegetable gums (e.g., acacia, carageenan, maltodextrin) or carbohydrates (e.g., sucrose, chitosan, malt, glycerol).

Drawings

FIG. 1 is a schematic cross-sectional view of a microcapsule structure of the present invention.

Description of the reference numerals

11 active oxygen shell powder

12 animal and plant protein layer

13 active oxygen core layer

14 a water soluble protective layer.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Now, the microcapsule structure containing the composition of active oxygen shell powder and the efficacy thereof according to the present invention will be described in detail with reference to the accompanying drawings, which illustrate a preferred embodiment of the present invention.

Referring to fig. 1, the microcapsule structure containing the active oxygen shell powder composition of the present invention includes an active oxygen core layer 13, an active oxygen shell powder 11, an animal and plant protein layer 12, and a water-soluble protective layer 14, wherein the active oxygen core layer 13 is composed of the active oxygen shell powder 11 and the animal and plant protein layer 12.

In this embodiment, the active oxygen core layer 13 composed of active oxygen shell powder 11 and animal and plant protein layer 12 is inside the microcapsule, and the water soluble protective layer 14 is the shell of the microcapsule, so that the fine powder is coated to be a sphere, and the microcapsule can be prepared by spray drying or low temperature freeze drying equipment.

As shown in fig. 1, the active oxygen core layer 13 is composed of active oxygen shell powder 11 and an animal and plant protein layer 12, wherein the active oxygen shell powder 11 is selected from shell, such as oyster, scallop, clam, nine-hole, and Xishi shell, or their mixture, calcined at a high temperature of 1000 ℃ for more than 1 hour, and then ground into fine powder, preferably, fine powder with a particle fineness close to the standard size of activated carbon. Wherein the animal and plant protein layer 12 can be selected from animal protein (such as fish gelatin, whey protein, collagen or their mixture), plant protein (such as soybean protein, zein or their mixture), etc.; the water soluble protective layer 14 can be selected from one of plant gum (such as acacia, carrageenan, maltodextrin, or their mixture), carbohydrate (such as sucrose, chitosan, malt, glycerol, or their mixture), etc.

In conclusion, the invention uses the water-soluble protective layer 14 and the animal and plant protein layer 12 as the embedding structure, which can effectively protect the bactericidal activity of the active oxygen shell powder, increase the water-soluble dispersibility of the active oxygen shell powder, enable the active oxygen shell powder to be uniformly mixed in various food processes, prolong the antibacterial activity of the active oxygen shell powder in food, and achieve the purposes of keeping food fresh and prolonging the shelf life of food.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.