CN108029925A - A kind of Natural anti-mildew material and preparation method based on short cycle instant food - Google Patents

Abstract

The application discloses a short-period instant food-based natural anti-mold material and a preparation method thereof. The natural anti-mold material includes natural resin, anti-mold agent, accelerator, defoamer and water. The preparation method comprises the steps of adding natural resin into a reaction kettle and stirring with water; adding a defoamer into the reaction kettle and stirring; mixing the accelerant into the antifungal agent and dissolving it in water to obtain an antifungal agent solution containing the accelerant; In the way of adding, the anti-mold agent solution containing the accelerator is added dropwise to the reaction kettle and stirred to obtain a natural anti-mold material. The natural resin and antifungal agent selected for the natural antimold material in the embodiment of the present application are all processed from natural materials, which not only have a certain barrier property, improve the effect of antimold and freshness, but also have the advantage of being natural and non-toxic, improving the antifungal effect. Edible safety of moldy materials. In this application, an accelerator is added, which can release the antifungal agent in a short time, inhibit the growth of mold, and achieve the effect of reducing the number of mold in a short time.

Description

A kind of natural anti-mildew material and preparation method based on short-cycle instant food

technical field

The application relates to the technical field of food preservation, in particular to a natural anti-mold material based on short-cycle instant food and a preparation method.

Background technique

Instant food refers to a type of food that does not need to be processed and can be eaten directly after opening the package (or in bulk). Instant food includes fast food, canned food, puffed food, fried food, baked food, instant seaweed, preserved fruit, dried fruit, health care products, etc. Short-cycle instant food refers to ready-to-eat food that has not been sterilized, such as baked instant food, including cakes and bread. This kind of short cycle means that the food contains high sugar content, which is very prone to bacterial growth.

Most of the current research directions are how to extend the shelf life of short-cycle instant food, but consumers are not very accepting of instant food with extended shelf life, and often refuse to buy it due to resistance. In addition, for short-cycle instant food, if the shelf life is 3 days, if it is stored for more than 3 days, there will be too many molds, which will cause some diseases after eating. However, the mold still exists within 3 days of storage, but it does not exceed the acceptable range of the human body. However, if it is stored in an environment with high relative humidity and the reproduction of mold is accelerated, the mold may exceed the standard within 3 days of storage, making it inedible within the shelf life.

Most of the existing natural anti-mold materials for short-term food are based on the addition of anti-mold agents. When stored under poor environmental conditions, the existing natural anti-mold materials cannot effectively inhibit the growth of mold in a short period of time. The effect of mildew preservation.

Contents of the invention

The purpose of this application is to provide a short-cycle food-based natural anti-mold material and its preparation method to solve the problem that existing short-cycle food-based natural anti-mold materials cannot effectively inhibit mold growth in a short period of time.

On the one hand, according to the embodiment of the present application, a natural anti-mold material based on short-cycle instant food is provided, including: natural resin, anti-mold agent, accelerator, defoamer and water.

Optionally, the natural anti-mold material includes the following components by weight percentage: 8-60% natural resin, 1-10% anti-mold agent, 0.1-2% accelerator and 0.5-1% defoamer, the balance for water.

Optionally, the natural resin is modified starch, and the modified starch accounts for 30-60% by weight of the natural anti-mold material.

Optionally, the natural resin is water-soluble chitosan, and the water-soluble chitosan accounts for 8-28% by weight of the natural mold-proof material.

Optionally, the natural resin is modified agar, and the modified agar accounts for 10-30% by weight of the natural anti-mold material.

Optionally, the natural resin includes at least two of modified starch, water-soluble chitosan and modified agar

Optionally, the antifungal agent is water-soluble capsaicin.

Optionally, the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate.

Optionally, the 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate includes: 2-methyl-2-[(1-oxo- Sodium 2-propenyl)amino]-1-propanesulfonate or potassium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate.

On the other hand, according to the embodiments of the present application, a method for preparing a natural anti-mold material for short-term food is provided, comprising the following steps:

Add the natural resin into the reaction kettle, add water and stir for 5-15min, the speed is 100-300r/min;

Add defoamer to the reaction kettle, stir for 30-60min, and rotate at 200-400r/min;

Mix the accelerator into the antifungal agent and dissolve in water to obtain the antifungal agent solution containing the accelerator;

In the way of dropping, add the antifungal agent solution containing accelerator dropwise to the reaction kettle, the rotation speed is 800-1000r/min, and the titration time is 1-2h. After the titration is completed, keep the rotation speed constant and continue to stir 1-2h to obtain the natural mildew-proof material.

It can be known from the above technical solutions that the embodiment of the present application provides a short-period instant food-based natural anti-mold material and its preparation method. The natural anti-mold material includes natural resin, anti-mold agent, accelerator, defoamer and water. The preparation method comprises adding natural resin into a reactor, adding water and stirring; adding a defoamer into the reactor and stirring; mixing the accelerator into the antifungal agent and dissolving it in water to obtain an antifungal agent solution containing the accelerator; In the way of dropping, the anti-mold solution containing the accelerator is added dropwise to the reaction kettle and stirred to obtain the natural anti-mold material. The natural resin and antifungal agent selected for the natural antimold material in the embodiment of the present application are all processed from natural materials, which not only have a certain barrier property, but also can seal short-cycle food in a relatively closed space to prevent water and air The entry of anti-mildew materials improves the effect of anti-mold and freshness preservation, and has the advantages of natural non-toxicity, which improves the food safety of anti-mold materials. In this application, an accelerator is added, and the accelerator can release the antifungal agent in a short time, inhibit the growth of mold, and achieve the anti-mold and fresh-keeping effect of reducing the number of mold in a short time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present application. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a flowchart of a method for preparing a natural anti-mold material based on a short-cycle instant food according to an embodiment of the present application.

Detailed ways

Embodiment one

Embodiment 1 of the present application provides a kind of natural anti-mold material based on short-cycle instant food, comprising the following components by weight percentage: 60% natural resin, 1% anti-mold agent, 0.1% accelerator, 0.5% defoamer and 38.4% water.

Referring to Fig. 1, the embodiment of the present application provides a kind of preparation method of the natural mildewproof material that is food in a short cycle, comprises the following steps:

Step S1, adding the natural resin into the reaction kettle, adding water and stirring for 5-15 minutes, the rotation speed is 100-300r/min;

Step S2, adding a defoamer into the reaction kettle, stirring for 30-60min, with a rotation speed of 200-400r/min;

Step S3, mixing the accelerator into the antifungal agent and dissolving in water to obtain an antifungal agent solution containing the accelerator;

Step S4, dropwise adding the antifungal agent solution containing accelerator to the reaction kettle at a speed of 800-1000r/min, the titration time is 1-2h, after the titration is completed, keep the speed constant , and continue to stir for 1-2h to obtain the natural anti-mold material.

It should be noted that the preparation methods of the natural anti-mold materials in the second to tenth examples are the same as those in the examples, and will not be described in detail below.

In addition, natural resin refers to the resin processed from a natural material.

The natural resin is modified starch, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propane sodium sulfonate.

Starch is a polysaccharide. There are usually two types of unmodified starch structures: amylose and amylopectin, which are polymerized polysaccharides. Modified starch is a starch derivative produced by natural starch through appropriate chemical treatment, introducing certain chemical groups to change the molecular structure and physical and chemical properties. The purpose of cross-linking treatment of water-soluble starch is to increase the intra-molecular and inter-molecular connections at random positions of starch granules, and at the same time increase the density of cross-links in the starch structure. The modified starch after cross-linking treatment has a porous structure, and the higher the cross-linking density of the modified starch is, the stronger its ability to block moisture and oxygen from the outside as an anti-mold material, and the better it can inhibit the growth and reproduction of mold.

Capsaicin is the active ingredient in peppers. It is irritating to mammals including humans and can cause a burning sensation in the mouth. Capsaicin is a secondary metabolite produced by peppers. Natural capsaicin is a water-repellent, lipophilic, colorless, odorless, crystalline or waxy compound. Natural capsaicin can be processed to make capsaicin soluble in water, that is, water-soluble capsaicin. Water-soluble capsaicin has the function of sterilization and disinfection, and can effectively inhibit the growth of mold.

Sodium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate can promote anti-mold agent to exert anti-mold and fresh-keeping effect in a short time.

Defoamers, also known as defoamers, are additives that reduce surface tension, inhibit foam generation, or eliminate foam that has already occurred during food or industrial processing. The defoaming agents mainly include emulsified silicone oil, high carbon alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene alcohol amine ether, polyoxypropylene glyceryl ether and polyoxypropylene polyoxyethylene glyceryl ether , polydimethylsiloxane and other 7 kinds.

Compared with the prior art, in this example one, modified starch, water-soluble capsaicin, 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid sodium And the combination of defoaming agent forms a natural anti-mildew material with certain oxygen and moisture resistance to prevent the entry of external oxygen and moisture, 2-methyl-2-[(1-oxo-2-propenyl)amino] - Sodium 1-propanesulfonate can promote water-soluble capsaicin to exert its anti-mold and fresh-keeping effect in a short time, inhibit the growth of mold, ensure that the number of molds can be reduced in a short time, and improve the fresh-keeping quality of food in a short period of time. It can still be used with confidence under the condition of poor storage environment. Compared with the prior art, both Embodiment 2 and Embodiment 3 can inhibit the growth of mold in a short period of time, and enhance the anti-mold and fresh-keeping effect of food in a short period of time, which will not be described in detail below.

Embodiment two

Embodiment 2 of the present application provides a kind of natural anti-mold material based on short-cycle instant food, comprising the following components by weight percentage: 60% natural resin, 5% anti-mold agent, 1% accelerator, 0.75% defoamer and 33.25% water

The natural resin is modified starch, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propane sodium sulfonate.

Embodiment three

Embodiment 3 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 60% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 27% water

The natural resin is modified starch, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propane sodium sulfonate.

Compare the anti-mold and fresh-keeping effects of Example 1, Example 2 and Example 3, that is, the total number of mold colonies of food in a short period. A large number of practical results show that the total number of mold colonies in Example 3 is less than that of the other two groups of examples, and the total number of mold colonies in Example 2 is less than that of Example 1. The addition amount of antifungal agent in Example 3 is relatively high, and the ability to inhibit the growth and reproduction of mold is enhanced. At the same time, the content of the accelerator is also relatively high, and the accelerator can release the antifungal agent in a short time, which has a better anti-mold and fresh-keeping effect.

Embodiment Four

Embodiment 4 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 30% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 57% water.

The natural resin is modified starch, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propane sodium sulfonate.

Compare the fresh-keeping effects of the natural anti-mold materials of Example 3 and Example 4, that is, the total number of mold colonies of food in a short period of time. A large number of experimental results show that the total number of mold colonies in Example 3 is less than that of Example 4, indicating that the higher the modified starch content, the better its barrier properties to external air and moisture, and it can inhibit the growth and reproduction of molds, thereby improving its anti-mold and freshness. Effect.

Embodiment five

Embodiment 5 of the present application provides a kind of natural anti-mold material based on short-cycle instant food, comprising the following components by weight percentage: 8% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 79% water.

The natural resin is water-soluble chitosan, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1 - potassium propanesulfonate.

Chitosan is obtained by deacetylation of chitin, which exists widely in nature. Due to the existence of a large amount of free ammonia in the molecular structure of chitosan, it becomes a rare natural polycation with unique functions. Chitosan has a remarkable effect on anti-bacteria and fungi. It may be due to the interaction between the positive charge of the chitosan molecule and the negative charge on the bacterial cell membrane, which makes the intracellular protease and other components leak, thereby achieving the effect of antibacterial and bactericidal. Chitosan can prevent outside oxygen and moisture from entering food packaging in a short period of time, effectively inhibit the growth of microorganisms such as mold, and reduce the number of mold in a short period of time. In chitin molecules, due to the interaction of internal and external hydrogen bonds, an ordered macromolecular structure is formed. The solubility is very poor. Therefore, chitosan can be made into water-soluble chitosan by certain means, which is easy to process into Anti-mildew material.

Embodiment six

Embodiment six of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 28% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 59% water.

The natural resin is water-soluble chitosan, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl)amino]-1 - potassium propanesulfonate.

Compare the fresh-keeping effects of the natural anti-mold materials of Example 5 and Example 6, that is, the total number of mold colonies of food in a short period. A large number of practical results show that the total number of mold colonies in Example 6 is less than that of Example 5, indicating that the higher the content of water-soluble chitosan, the better the barrier properties to external air and moisture, the stronger the antibacterial and bactericidal ability, and the more it can inhibit the growth of mold Propagation, thereby improving its anti-mildew and fresh-keeping effect.

Embodiment seven

Embodiment 7 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 10% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 77% water.

The natural resin is modified agar, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl) amino]-1-propane potassium sulfonate.

Agar, also known as agar, commonly known as agar, jelly powder or jelly, is a hydrophilic colloid extracted from red seaweeds. Agar is a colorless, shapeless solid that dissolves in hot water. The agar is modified by adding hydrophilic groups to obtain a modified agar with better water solubility. The anti-mildew material made of modified agar has no toxic effect, and has a certain barrier property, which can block the entry of outside air and water, and play the role of anti-mildew and fresh-keeping.

Embodiment eight

Embodiment 8 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 30% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 57% water.

The natural resin is modified agar, the fungicide is water-soluble capsaicin, and the accelerator is 2-methyl-2-[(1-oxo-2-propenyl) amino]-1-propane potassium sulfonate.

Compare the anti-mold and fresh-keeping effects of Example 7 and Example 8, that is, the total number of mold colonies of food in a short period. A large number of practical results show that the total number of mold colonies in Example 8 is less than that of Example 7, indicating that the higher the content of modified agar, the better its barrier properties to outside air and moisture, and it can inhibit the growth and reproduction of molds, thereby improving its anti-mildew and freshness. Effect.

Embodiment nine

Embodiment 9 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 44% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 43% water.

The natural resin is water-soluble chitosan and modified starch, the added amount of water-soluble chitosan accounts for 14% of the total mass of the anti-mold agent, and the added amount of modified starch accounts for 30% of the total mass of the anti-mold agent. The antifungal agent is water-soluble capsaicin. The accelerator is sodium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate.

In this embodiment, the mixed use of water-soluble chitosan and modified starch can improve the anti-mold and fresh-keeping effect of the natural anti-mold material.

Embodiment ten

Embodiment 10 of the present application provides a kind of natural anti-mold material based on short-cycle food, comprising the following components by weight percentage: 39% natural resin, 10% anti-mold agent, 2% accelerator, 1% defoamer and 48% water.

The natural resin is water-soluble chitosan, modified starch and modified agar, the addition of water-soluble chitosan accounts for 9% of the total mass of the anti-mold agent, and the addition of modified starch accounts for 20% of the total mass of the anti-mold agent , the added amount of modified starch accounts for 10% of the total mass of the antifungal agent, and the antifungal agent is water-soluble capsaicin. The accelerator is potassium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate.

In this example, water-soluble chitosan, modified starch and modified agar are used in combination to increase the barrier properties of natural anti-mold materials and improve their anti-mold and fresh-keeping effects.

It can be known from the above technical solutions that the embodiment of the present application provides a short-period instant food-based natural anti-mold material and its preparation method. The natural anti-mold material includes natural resin, anti-mold agent, accelerator, defoamer and water. The preparation method comprises adding natural resin into a reactor, adding water and stirring; adding a defoamer into the reactor and stirring; mixing the accelerator into the antifungal agent and dissolving it in water to obtain an antifungal agent solution containing the accelerator; In the way of dropping, the anti-mold solution containing the accelerator is added dropwise to the reaction kettle and stirred to obtain the natural anti-mold material. The natural resin and antifungal agent selected for the natural antimold material in the embodiment of the present application are all processed from natural materials, which not only have a certain barrier property, but also can seal short-cycle food in a relatively closed space to prevent water and air The entry of anti-mildew materials improves the effect of anti-mold and freshness preservation, and has the advantages of natural non-toxicity, which improves the food safety of anti-mold materials. In this application, an accelerator is added, and the accelerator can release the antifungal agent in a short time, inhibit the growth of mold, and achieve the anti-mold and fresh-keeping effect of reducing the number of mold in a short time.

Other embodiments of the application will be readily apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application . The specification and examples are to be considered exemplary only, with a true scope and spirit of the application indicated by the following claims.

It should be understood that the present application is not limited to what has been described above, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A natural anti-mold material based on short-cycle instant food, it is characterized in that, comprising: natural resin, anti-mold agent, promotor, defoamer and water. 2. The natural anti-mold material according to claim 1, characterized in that it comprises the following components by weight percentage: 8-60% natural resin, 1-10% anti-mold agent, 0.1-2% accelerator and 0.5- 1% defoamer, the balance is water. 3. The natural anti-mold material according to claim 1, characterized in that the natural resin is modified starch, and the modified starch accounts for 30-60% of the weight of the natural anti-mold material. 4. The natural anti-mold material according to claim 2, characterized in that, the natural resin is water-soluble chitosan, and the water-soluble chitosan accounts for 8-28% of the weight of the natural anti-mold material. 5. The natural anti-mold material according to claim 1, characterized in that, the natural resin is modified agar, and the modified agar accounts for 10-30% of the weight of the natural anti-mold material. 6. The natural mold-proof material according to claim 1, characterized in that, said natural resin comprises at least two of modified starch, water-soluble chitosan and modified agar. 7. The natural anti-mold material according to claim 1, characterized in that, the anti-mold agent is water-soluble capsaicin. 8. natural mildewproof material according to claim 1, is characterized in that, described accelerator is 2-methyl-2-[(1-oxo-2-propenyl) amino]-1-propanesulfonic acid Salt. 9. natural mildewproof material according to claim 7, is characterized in that, described 2-methyl-2-[(1-oxo-2-propenyl) amino]-1-propanesulfonate comprises: 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate sodium or 2-methyl-2-[(1-oxo-2-propenyl)amino] - Potassium 1-propanesulfonate. 10. A preparation method of the natural anti-mold material according to any one of claims 1-9, characterized in that, comprising the following steps: Add the natural resin into the reaction kettle, add water and stir for 5-15min, the speed is 100-300r/min; Add defoamer to the reaction kettle, stir for 30-60min, and rotate at 200-400r/min; Mix the accelerator into the antifungal agent and dissolve in water to obtain the antifungal agent solution containing the accelerator; In the way of dropping, add the antifungal agent solution containing accelerator dropwise to the reaction kettle, the rotation speed is 800-1000r/min, and the titration time is 1-2h. After the titration is completed, keep the rotation speed constant and continue to stir 1-2h, to obtain the natural anti-mold material.