KR20200082023A - Anti-microbial coating composition - Google Patents

Abstract

The present invention relates to an antibacterial coating composition, and more particularly, to an antimicrobial coating composition prepared by adding a garlic distillate extract, an onion distillate extract, a celandine distillate extract, and a mugwort distillate extract to liquid detoxified sulfur and stirring a resulting mixture. According to the present invention, the antimicrobial coating composition is prepared at a low cost by using plant materials that have been easily accessed in rural areas but have been low in utilization until now, the antimicrobial coating composition is safely used because the antimicrobial coating composition is applied by coating an article used for cultivating and distributing crops with the antimicrobial coating composition without directly applying the antimicrobial coating composition to the crops, the antimicrobial coating composition exerts an excellent antibacterial effect in an actual process of cultivating or distributing the crops, and the antimicrobial coating composition is used in various ways such as mulching materials, crop protection meshes, fruit tree bags, meshes for accommodating agricultural products, or agricultural product storage containers.

Description

Antibacterial coating composition {Anti-microbial coating composition}

The present invention relates to a composition for antimicrobial coating, and specifically, to a composition for antimicrobial coating prepared by adding and stirring garlic distillation extract, onion distillation extract, celandine distillation extract and mugwort distillation extract to liquid formulation sulfur.

Antibacterial agent refers to a substance that inhibits the growth or survival of microorganisms, and has various types and uses. However, research on existing antimicrobial agents is mainly conducted on microorganisms that cause infectious diseases in humans, so research on antimicrobial agents on microorganisms that occur when growing or storing crops is relatively insufficient. In addition, since most existing antimicrobial agents are produced through a process such as synthesizing a compound or highly purified from natural materials, there is a concern about human risk or high cost of using synthetic compounds, which makes it difficult for farmers to easily use it. It is reality.

To solve this problem, techniques using plant extracts or microorganisms as antibacterial agents for crops have been studied. For example, using safflower seed extract as washing water for agricultural products such as vegetables or fruits, technology to maintain quality and improve microbiological safety during storage or distribution (Republic of Korea Patent No. 10-1906471) Technology used as an agricultural crop protection agent, food washing agent, and food additive by suppressing causative bacteria (Registration No. 10-1823525), technology using specific microorganisms and extracts thereof as antibacterial agents against plant pathogens (Republic of Korea Patent Registration) 10-1362211).

However, when applied to actual agriculture, it is possible to exert a superior antimicrobial effect, and there is a need to develop a new method that can expect an antimicrobial effect in the cultivation or distribution process of crops in a variety of ways.

Accordingly, the present inventor can easily access in the countryside, but utilizes low-utility vegetable materials as antibacterial materials and applies them to coating agents to reduce stability and cost problems as much as possible. It was intended to develop a composition for antibacterial coating that can be utilized.

Republic of Korea Registered Patent No. 10-1906471 Republic of Korea Registered Patent No. 10-1823525 Republic of Korea Registered Patent No. 10-1362211

Therefore, the main object of the present invention is to provide an antimicrobial coating composition that can be easily encountered in a rural area but utilizes low-utility vegetable materials to safely and effectively exhibit excellent antibacterial activity at low cost in the cultivation or distribution of crops.

According to an aspect of the present invention, the present invention is 5 to 30 parts by weight of garlic distillation extract, 5 to 30 parts by weight of onion distillation extract, 5 to 30 parts by weight of celandine distillate extract, and 5 to 30 parts by weight of wormwood distillate It provides an antibacterial coating composition prepared by adding 30 parts by weight and stirring at 70 to 100° C. for 1 hour or more while adding oxygen or air.

In the composition of the present invention, the liquid formulation sulfur is preferably prepared by dissolving water-soluble sulfur in a mixed solution of a bank distillation extract, a distilled extract of Hyeopdo Island, a golden distillation extract, an organic solvent and a surfactant, and adding glycerin to mix. .

In the composition of the present invention, the liquid method sulfur is in the bank distillation extract 61 parts by weight of 5 to 15 parts by weight of the distilled extract of Hyeokdo Island, 5 to 15 parts by weight of the golden distillate extract, 4 to 8 parts by weight of dimethyl sulfoxide and nonylphenol It is preferably prepared by dissolving 20 to 40 parts by weight of water-soluble sulfur in a mixed solution containing 1 to 3 parts by weight of oxylate and mixing 5 to 15 parts by weight of glycerin.

In the composition of the present invention, it is preferable that the composition is a mulching material, a net for protecting crops, a fruit bag, a net for containing agricultural products, or an antibacterial coating of a storage container for agricultural products.

According to another aspect of the present invention, the present invention provides an article coated with the composition.

In the article of the present invention, the article is preferably selected from the group consisting of mulching materials, a net for protecting crops, a fruit bag, a net for holding agricultural products, and a storage container for agricultural products.

The composition for antimicrobial coating of the present invention can be easily contacted in the countryside, but can be manufactured at low cost by utilizing vegetable materials that have not been utilized so far, and is used for cultivating and distributing crops rather than directly processing them. Since it is applied by coating method, it can be safely used, and it can not only exhibit excellent antibacterial effect in the process of cultivating or distributing actual crops, but also various mulching materials, nets for protecting crops, fruit bags, nets containing agricultural products, or storage containers for agricultural products. Can be utilized.

1 is a schematic diagram of a dissolved oxygen fusion device that can be used to prepare the composition for antimicrobial coating of the present invention.
2 is a schematic diagram of a coating system that can be used to coat a target article using the antimicrobial coating composition of the present invention.
Figure 3 is a result of experimenting the antibacterial effect of the distillate extract and liquid phase sulfur (forbidden) according to an embodiment of the present invention. Forbidden = liquid sulfur, garlic = garlic distilled extract, wild porridge = wild porridge distilled extract, bank = bank distilled extract.
Figure 4 is a result of experimenting the antibacterial effect of the distillate extract and liquid method sulfur (forbidden) according to an embodiment of the present invention. 1 = liquid legal sulfur, 2 = garlic distillate, 3 = wild porridge distillate, 4 = bank distillate.
Figure 5 shows the effect of the non-woven fabric for antibacterial coating mulching according to an embodiment of the present invention in cabbage cultivation.
Figure 6 shows the effect of a non-woven fabric for antibacterial coating mulching according to an embodiment of the present invention in strawberry cultivation.
Figure 7 shows the effect of the antibacterial coating fruit bag according to an embodiment of the present invention in apple cultivation.
Figure 8 shows the effect of the net for storing the antibacterial coated agricultural products according to an embodiment of the present invention in the storage of seed potatoes.
9 shows the effect of the paper for packaging antibacterial coated agricultural products according to an embodiment of the present invention in strawberry packaging.
Figure 10 shows the effect of the net for protecting the antimicrobial coating crops in accordance with an embodiment of the present invention in cucumber cultivation.

The composition for antibacterial coating of the present invention is 5 to 30 parts by weight of garlic distillation extract, 5 to 30 parts by weight of onion distillation extract, 5 to 30 parts by weight of celandine distillate extract, and 5 to 30 parts by weight of mugwort distillate extract It is characterized by being prepared by stirring for 1 hour or longer at 70 to 100°C while adding and adding oxygen or air.

Liquid legal sulfur in the present invention refers to a liquid sulfur-containing composition having a reduced sulfur toxicity and irritation, and by mixing sulfur and plant extracts and the like so that they are fused, a reduced sulfur toxicity and irritation can be used. Particularly, in the present invention, water-soluble sulfur is dissolved in a mixed solution of a bank distillation extract, a distilled extract of oleander, a golden distillation extract, an organic solvent and a surfactant in consideration of the manufacturing cost, the antibacterial effect and safety of the coating, and mixed by adding glycerin It is preferable to use the prepared one.

More preferably, 61 parts by weight of the bank distillation extract is mixed with 5 to 15 parts by weight of the distilled extract of Hyeopdo Island, 5 to 15 parts by weight of the golden distillation extract, 4 to 8 parts by weight of dimethyl sulfoxide, and 1 to 3 parts by weight of nonylphenol ethoxylate. It is preferable to dissolve 20 to 40 parts by weight of water-soluble sulfur in one mixed solution and use 5 to 15 parts by weight of glycerin. The liquid-formulated sulfur prepared in this way can exhibit excellent antibacterial activity in itself.

In the present invention, the distillate extract means a liquid obtained by condensing steam generated by heating a material. At this time, the heating temperature is preferably 100 ~ 500 ℃. More preferably, by heating to a temperature of 300° C. or higher, it is preferable to use one manufactured in a manner that induces carbonization pyrolysis and condenses the steam generated at this time. A device equipped with a condensation cyclone can be used for more efficient condensation.

A conventional distillation extraction device may be used for the preparation of the distillation extract, and in particular, a steam extraction device installed to generate the steam of the crop by-products by heating the crop by-products, such as the device of Korean Patent No. 10-1330163; A condensing device installed to condense the steam generated in the steam extracting device to obtain a sap of the crop by-product; A tar removal device installed to remove tar from the sap obtained from the condensation device; And a aging device for aging the sap-removed sap by the tar removal device, wherein the condensing device is provided with a cooling chamber through which cooling water flows on the side to condense the steam provided through the steam extraction device. Condensation cyclone; And cooling water circulation means installed to circulate cooling water in the cooling chamber through a circulation pump along a path of a circulation pipe connected to the cooling chamber, wherein the cooling water circulation means is connected to cooling water flowing in the circulation pipe. Including one or both of the dissolved oxygen increasing device installed in the circulation pipe and the magnetic device installed in the circulation pipe so that a magnetic field is applied to the cooling water flowing in the circulation pipe to provide oxygen so that dissolved oxygen increases. It is preferable to use an apparatus for manufacturing a crop extract made.

In the present invention, it is preferable to use garlic and onion as the extracting material of the distilled extract, edible scales, celandine, wormwood, oleander, and golden silver ground, ginkgo fruit, green leaves, or a mixture thereof. At this time, it is preferable that the bank uses the fruit pulp and green leaves collected in May to August in a weight ratio of 1:1 to 1:9 as an extraction material.

The antimicrobial coating composition of the present invention is prepared by stirring for 1 hour at 70 to 100° C. while adding oxygen or air to the liquid legal sulfur and garlic distilled extract, onion distilled extract, celandine distilled extract, and mugwort distilled extract. Each extract is well fused with the legal sulfur, and can exhibit a better antibacterial effect than the sole effect of each material. More preferably, it is preferably prepared by stirring at 70 to 80°C for 1 to 3 hours. In this case, as shown in FIG. 1, a dissolved oxygen fusion device for inducing fusion of materials through heating while supplying oxygen to the material while increasing dissolved oxygen may be used.

It has been found that the composition for antibacterial coating of the present invention exerts excellent antimicrobial effect against microorganisms, especially when growing crops or distributing agricultural products. Therefore, it is preferable to use for the purpose of antibacterial coating of agricultural products, agricultural product packaging products or agricultural product storage products. More preferably, it is preferable to use for the purpose of antibacterial coating of mulching materials, a net for protecting crops, a fruit bag, a net for containing agricultural products, or a storage container for agricultural products.

Accordingly, the article coated with the antimicrobial coating composition provided by the present invention is also preferably an agricultural article, an agricultural product packaging article or an agricultural product storage article, more preferably a mulching material, a net for protecting crops, fruit bags, and agricultural products. It is good to be a mesh or agricultural product storage container.

The composition for antibacterial coating of the present invention can be applied in various coating methods, for example, a method of spraying the surface of an article to be coated, a method of immersing the article to be coated in an antibacterial coating composition, and the like.

In particular, when coating on a non-woven fabric, paper or film, it is preferable to apply a spraying method, wherein the composition is sprayed directly through a spraying device connected to the stirring device while stirring the antimicrobial coating composition in the stirring device as shown in FIG. It is desirable to coat it.

Hereinafter, the present invention will be described in more detail through examples. Since these examples are only for illustrating the present invention, it should not be construed that the scope of the present invention is limited by these examples.

[Example]

1. Preparation of carbonized pyrolysis distillate

Distillation extracts were prepared for each of ginkgo, oleander, golden, garlic, onion, celandine, and mugwort in a manner to heat the vegetable material to thermally decompose carbonized and condense the steam generated at this time to obtain an extract. The device used at this time is the device described in Korean Patent Registration No. 10-1330163.

Specifically, each material was put into a carbonized pyrolysis extraction apparatus to apply heat of 350° C., and steam generated at this time was liquefied through a condensation apparatus equipped with a condensation cyclone to obtain a distillate extract.

At this time, the ginkgo is a mixture of ginkgo biloba and green leaves collected between May and August in a weight ratio of 3:7, oleander, golden, celandine and wormwood ground parts, garlic and onion, edible stem extracts It was used as.

2. Liquid phase sulfur production

In the mixed solution of the bank distillation extract 61kg of Example 1, 10kg of narrow-concentration distillation extract, 10kg of golden distillation extract, 6kg of dimethyl sulfoxide (DMSO) and 2kg of nonylphenol ethoxylate (TERGITOL™ NP-10) 32 kg of water-soluble sulfur was added and stirred at about 20° C. until water-soluble sulfur was completely dissolved.

Thereafter, 10 kg of glycerin was added and stirred to obtain a liquid sulfur.

3. Preparation of antimicrobial coating composition

60 kg of the liquid formulation sulfur prepared in Example 2 and 10 kg each of garlic distillate extract, onion distillate extract, celandine distillate extract and mugwort distillate extract prepared in Example 1 were introduced into a mixing device, and oxygen was supplied to the mixed solution. The mixture was mixed at about 70-100°C for 30 minutes to 1 hour to obtain a liquid antibacterial coating composition.

At this time, as the mixing device, oxygen is supplied to the material inside the container to increase the dissolved oxygen so that the material can be mixed, and at the same time, the Republic of Korea Patent No. 10 is equipped with a temperature control function so that the material inside the container maintains a constant temperature The fusion device described in -1330163 was used.

4. Antibacterial coating

The composition for antibacterial coating prepared in Example 3 was spray-coated on a non-woven fabric for mulching and paper. At this time, each nonwoven fabric and paper were sprayed and coated with about 300 g of an antimicrobial coating composition per 1 m 2 of area.

In addition, a synthetic resin net was immersed in the composition for antimicrobial coating prepared in Example 3 and dried using an antibacterial coating method.

[Experimental Example]

1. Antibacterial effect of distillate extract and liquid formulation sulfur

The antibacterial activity of the distillate extract of each material prepared by the method of Example 1 and the liquid formulation sulfur prepared by the method of Example 2 was investigated for the bacteria that were problematic when cultivating crops.

A method of confirming the inhibition zone was used after raising and culturing a paper disc to which an antibacterial activity test material was applied on a solid medium inoculated with each test bacteria.

The results are shown in FIGS. 3 and 4.

2. Effect of non-woven fabric for antibacterial coating mulching

As a result of antibacterial experiments of the distillate extract and liquid-formulated sulfur, some antimicrobial effects on bacteria, such as fungi, mainly occurring in crops, were confirmed.

Accordingly, in order to investigate the effect of applying the antimicrobial coating of the composition of the present invention to mulching paper during cultivation of actual crops, Chinese cabbage was cultivated by mulching with a nonwoven fabric for mulching with antibacterial coating in Example 4 above, and comparing it with conventional cultivation. Did.

As a result of this, in the case of conventional cultivation, in the case of conventional cultivation, blue mold and the like occur around the growing cabbage, and moisturization does not occur, resulting in abnormal signs such as soil cracking, while mulching with the antibacterial coated nonwoven fabric of the present invention In one case, it was found that this phenomenon did not occur (see FIG. 5).

In addition, as in Example 4, cultivation of strawberries by mulching with a non-woven fabric for mulching with an antibacterial coating, compared with the case of mulching with a non-woven fabric, a problem occurred in plant growth due to the occurrence of anthrax when using a non-woven fabric, In the case of mulching with an antibacterial coated non-woven fabric, it was found that anthrax rarely occurs and the plant can grow healthy (see FIG. 6).

3. Effect of antibacterial coating fruit tree bag

In order to investigate the effect of applying the antimicrobial coating of the composition of the present invention to a fruit tree bag during cultivation of an actual crop, a fruit tree bag was made of the paper coated with the antibacterial coating in Example 4, and apples were grown using the same.

As a result of this, it was possible to produce an apple of excellent quality without the occurrence of a special bottle by using an antibacterial coated fruit bag (see FIG. 7 ).

4. Effect of net for storage of antibacterial coated agricultural products

In order to investigate the effect of applying the antimicrobial coating of the composition of the present invention to a net for storage of actual crops, the antimicrobial coated nets in Example 4 were stored with seed potatoes, and the degree of contamination of the bacteria was then measured. Compared with the case stored in.

The degree of contamination of the bacteria was carried out by placing the seed potatoes stored in the net on the fungus medium and confirming the degree of the occurrence of the bacteria when cultured.

As a result of this, when using an antibacterial coated mesh compared to the case of using a regular mesh, it was found that the fungal contamination of seed potatoes was significantly reduced (see FIG. 8).

5. Effect of paper for packaging antibacterial coated agricultural products

In order to investigate the effect of applying the antimicrobial coating of the composition of the present invention to the packaging of actual crops, the antibacterial coated paper in Example 4 was laid on the inner bottom of the strawberry packaging container and the strawberries were packaged. Compared with the case where no antibacterial coated paper was used.

As a result of this, in the case of general packaging without using an antibacterial coating paper, it was found that the decay occurs quickly such as mold on strawberries, but when using an antibacterial coating paper, freshness can be maintained without decay for a long time (see FIG. 9).

6. Effect of the net for protecting crops with antibacterial coating

In order to investigate the effect of applying the antimicrobial coating of the composition of the present invention to a protective net (holding net) when cultivating an actual crop, cucumbers were cultivated using an antimicrobial coated prop net in Example 4, using a general prop net Compared with the case.

As a result of this, when cucumbers were cultivated using a general holding net (control group), there were many cucumbers with powdery mildew, whereas when using an antibacterial coated holding net, about 63% (compared to the control group) showed a powdery mildew control effect (see FIG. 10). .

Claims (6)

Liquid method: 5-30 parts by weight of garlic distillate extract, 5-30 parts by weight of onion distillate extract, 5-30 parts by weight of celandine distillate extract, and 5-30 parts by weight of wormwood distillate extract, while adding oxygen or air A composition for antibacterial coating prepared by stirring at 70 to 100°C for at least 1 hour. According to claim 1,
The liquid formulation sulfur is a composition characterized by dissolving water-soluble sulfur in a mixed solution of a bank distillation extract, a distilled extract of Hyeopdo Island, a golden distillation extract, an organic solvent and a surfactant, and adding glycerin to mix. According to claim 2,
The liquid-formulated sulfur is 5 to 15 parts by weight of distilled extract from Yeongjukdo, 5 to 15 parts by weight of golden distillate, 4 to 8 parts by weight of dimethyl sulfoxide, and 1 to 3 parts by weight of nonylphenol ethoxylate. A composition characterized by dissolving 20 to 40 parts by weight of water-soluble sulfur in a mixed solution and mixing 5 to 15 parts by weight of glycerin. According to claim 1,
The composition is a mulching material, a net for protecting crops, a fruit bag, a net for containing agricultural products, or a composition characterized by the use of an antibacterial coating of agricultural products storage containers. An article coated with the composition of claim 1. The method of claim 5,
The article is an article characterized in that it is selected from the group consisting of mulching material, a net for protecting crops, fruit bags, a net for storing agricultural products, and a storage container for agricultural products.

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