KR102212590B1 - Natural pesticide composition harmless to human body and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a natural pesticide composition completely harmless to the human body and, specifically, to a natural pesticide composition completely harmless to the human body while maximizing pesticidal ability by mixing natural pesticidal ingredients in a specific ratio. The natural pesticidal composition comprises only pesticidal ingredients derived from natural products and has an excellent anti-epidemic effect while maintaining a stable formulation, thereby being suitable for use in various living spaces.

Description

Natural pesticide composition harmless to human body and its manufacturing method {NATURAL PESTICIDE COMPOSITION HARMLESS TO HUMAN BODY AND MANUFACTURING METHOD THEREOF}

The present invention relates to a natural insecticide composition that is completely harmless to the human body, and specifically relates to a natural insecticide composition characterized in that it is completely harmless to the human body while maximizing the insecticidal ability by mixing natural insecticidal ingredients in a specific ratio.

In general, pests are a generic term for insects that directly or indirectly harm human life, and in recent years, new insects are frequently classified as pests due to global warming or ecosystem disturbance.

In recent years, natural repellents and insecticides that are harmless to the human body have been widely developed, but non-selective repellents or insecticides are generally toxic to living organisms.

Therefore, there is a problem that affects other organisms other than humans or insects, and the development of repellents or insecticides that specifically act on specific pests by utilizing natural ingredients using extracts of animals and plants is drawing attention.

On the other hand, in the case of a mixture using heterogeneous plant extracts, there was a problem that it was difficult to prepare a homogeneous mixture or maintain a mixed phase even if it was possible to manufacture a mixture by using natural ingredients. It is common.

However, excessive use of surfactants is a problem that the amount of active ingredients is relatively limited to achieve the desired effect of the mixture, and it is necessary to refrain from inhaling and ingesting directly by humans. And development is required.

Korean Patent Registration No. 10-1960250

One aspect of the present invention is to utilize natural ingredients derived from plants, and to provide a pesticide composition harmless to the human body.

Another aspect of the present invention is to provide a natural pesticide composition that is formed in a homogeneous mixture using plant extracts and maintains a stable formulation.

The natural pesticide composition according to the present invention for solving the above problems may be prepared including a Gosam extract, a Pageukcheon extract, and an emulsifier.

Specifically, the target pests of the pesticide composition may be oriental haru and/or small small mites, but are not limited thereto.

The pesticide composition may include 30 to 40% by weight of the Gosam extract, 10 to 20% by weight of the Pageukcheon extract, and 2 to 10% by weight of the emulsifier based on the total weight of the composition.

In the present invention, the Gosam extract is obtained by adding 100g of Gosam as a hot water extract to 1L of distilled water and maintaining the temperature at 70 to 90°C and heating for 10 to 20 minutes, and the Pageukcheon extract is an alcohol extract, 100g of Pageukcheon as 80% alcohol It may be obtained by putting in 2L and immersing for 10 to 20 minutes.

In the present invention, the emulsifier may be one or more selected from the group consisting of polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 65, and polysorbate 80.

In the present invention, the pesticide composition may include at least one selected from the group consisting of purslane extract, baekduhong extract, tobacco leaf extract, and tokomari extract.

The method for preparing a natural pesticide composition according to the present invention includes the steps of (a) putting dried gosam in distilled water and heating to obtain a gosam extract, (b) putting Pageukcheon into 80% alcohol to obtain a Pageukcheon extract, and (c) the above and mixing the extracts obtained in steps (a) and (b) by adding an emulsifier while maintaining a temperature of 20 to 25°C.

In the method for preparing the natural pesticide composition, the step (a) is to put 100 g of dried gosam in 1L of distilled water and heat it at a temperature of 70 to 90°C for 10 to 20 minutes, and the step (b) includes a thickness of 0.01 to It may be to put 100 g of paguk cloth cut into 1 cm in 2L of 80% alcohol and soak for 10 to 20 minutes.

As described above, the natural pesticide composition according to the present invention is harmless to the human body by using a plant extract and has an excellent effect of repelling pests and insecticidal effects.

In addition, the natural pesticide composition of the present invention is prepared by mixing extracts derived from natural products having a pest repellent effect, overcomes the limitation of formulation separation, which is a problem with conventional natural pesticides, and forms a uniform mixture to maintain stable It is characterized by having a formulation.

Hereinafter, each configuration will be described in more detail, but this is only an example, and the scope of the present invention is not limited by the following content.

Regarding the natural insecticide composition according to the present invention, it is prepared by including natural insecticidal ingredients such as Gosam extract and Pageukcheon extract, and has a repelling effect and an insecticidal effect specifically on oriental harusal and small small mites.

The natural pesticide composition according to the present invention works most effectively against oriental daily and/or small small mites, even though it is a harmless ingredient that can be used as herbal medicine to the human body. In particular, as an insecticide composition that has an immediate and excellent insecticidal effect on Dongyang Harulife, it is harmless to the human body and can be sprayed into a water supply source, and it has the advantage of being harmless even if it is introduced into the body through the human skin or respiratory tract through spray and smoke prevention. .

The natural insecticide composition, based on the total weight, 30 to 40% by weight of the Gosam extract, 10 to 20% by weight of the Pageukcheon extract, 0.5 to 3% by weight of tobacco leaf extract, 1 to 5% by weight of Tokomari extract, and 2 to the emulsifier It can be prepared including 10% by weight and the balance of water.

The Gosam extract can be obtained by using the dried root of Gosam. In more detail, the root of Gosam can be chopped and dried, and then used to obtain an extract.

The Ginseng extract can be obtained through various methods such as solvent extraction, hot water extraction, and supercritical extraction, but in consideration of the efficiency of the manufacturing process, insect repelling effect, and insecticidal effect, hot water extract obtained through hot water extraction using water as a solvent It is preferable to use.

The Pageukcheon extract may be obtained by using the roots finely cut and dried and then used as it is, and preferably, the extract may be obtained using the Pagukcheon cut to a thickness of 0.01 to 1 cm.

The Pageukcheon extract can be obtained by using a variety of extraction methods as in the Gosam extract, but the ingredient having a specific insecticidal effect on the oriental day is a component that is more soluble in ethanol than water, so in the present invention, 80 to 100% alcohol is used. Alcohol extract can be used. Preferably, an alcohol extract using 80% alcohol may be used.

Gosam extract contains an alkaloid called matrine, but the active ingredients contained in the Pagukcheon extract have slightly different physical properties from matrine, so when the extract is mixed, the active ingredients are not uniformly mixed in the mixture. Can be.

The tobacco leaf extract is an extract using the leaf part of tobacco, which is a perennial herb of the Tonghua plant family. Tobacco leaves are widely known to be effective in repelling insects or pests, and this is known to be due to the nicotine component contained in tobacco leaves. The tobacco leaf extract can be obtained by cutting finely and drying 100 g in 5 L of water and heating for 10 to 20 minutes at a temperature of 60-80°C, and can be added in an amount of 0.5 to 3% by weight based on the total weight of the natural insecticide.

Docomari of the Docomari extract is an annual herb, widely known as a medicinal herb having an effect on rhinitis, etc., but in the present invention, there is an effect of improving the insect repelling effect by appropriately adding the Docomari extract as needed. In addition, it can be obtained by cutting finely and drying 100 g in 5 L of water and heating for 10 to 20 minutes at a temperature of 60-80°C, and can be added in an amount of 1 to 5% by weight based on the total weight of the natural insecticide. .

The natural pesticide composition according to the present invention may further include any one or more of extracts of purslane and Baekduhong, which are natural products having insecticidal and pest repelling effects.

Purslane is a perennial plant belonging to the Purslane family, and is widely known as a harmless ingredient to the human body that reproduces leaves as it is, obtains an extract from it and uses it as a cosmetic ingredient, or is used as a medicine. It is a plant known to have a repellent effect against pests, such as using purslane enzyme as a mosquito and mite repellent. Purslane extract can be obtained by cutting the purslane leaves finely and drying them, adding 100 g of dried purslane in 5L of water and heating at a temperature of 60-80℃ for 10-20 minutes. Purslane extract may be appropriately added as needed, but preferably may be added in an amount of 0.1 to 5% by weight based on the total weight of the natural pesticide composition.

The Baekduhong extract is an extract that is also known to have mosquito repelling effects, and is an extract extracted from Paekduhong (Paekduhong). Baekduhong extract can be obtained by cutting and drying Baekduhong finely and then putting 100g in 5L of water and heating at a temperature of 60-80℃ for 10-20 minutes, and added in 0.1 to 3% by weight based on the total weight of the natural pesticide composition can do.

Since insecticides are mainly used in the quarantine process by spraying or mist quarantine methods, it is important to consider the quality of the product and maintaining the liquid formulation in a uniform and stable form.

The present invention relates to an insecticide composition that is harmless to the human body and can be easily quarantined in daily life, and is composed of a uniform and stable liquid mixture by adding only a minimum amount of emulsifier.

Specifically, the emulsifier may be one or more selected from the group consisting of polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 65, and polysorbate 80.

Preferably, polysorbate 80 may be used, and when using it, the Gosam extract and the Pageukcheon extract form a homogeneous and stable mixture, and the mixing efficiency is best compared to the amount of emulsifier added. Moreover, the emulsifier is more suitable for the present invention because it is an emulsifier that can be consumed by humans.

As described above, since a stable liquid mixture formulation is implemented while using an emulsifier such as polysorbate in a minimum amount, it is harmless to a water environment, an atmospheric environment, and a human body.

Dongyang Harulife is a type of mayfly that lives in clear water. It is a mayfly species mainly found in Korea and China. After mass breeding and haunting in places with water such as rivers, valleys, dams, water sources, etc. There is a problem with being found dead.

A large amount of dead objects may contaminate the water, and since the water source must undergo an additional process to remove floating matter and a large amount of organic matter, it can be applied directly to the water to prevent such a problem in advance, or during the quarantine process at the waterside. It is necessary to use natural pesticides that can be used.

The present invention provides a natural pesticide that can be used when direct contact with the human body is required as described above, and when it is required to be used by spraying or spraying directly on a water source or the like. In particular, the present invention is excellent in the insecticidal effect against the oriental day life, which is recently classified as a pest.

Haemaphysalis longicornis is a type of tick. It is a pest that mediates Lyme disease, spot fever, rickettsia and severe febrile thrombocytopenia syndrome viruses. It is considered the best prevention method.

In order to prevent ticks from contacting the skin, a method such as directly applying a repellent to the skin or spraying on clothes is most effective, and thus it is necessary to use a natural pest repellent or insecticide that is harmless to the human body as in the present invention.

In the present invention, the Gosam extract is obtained by adding 100g of Gosam to 1L of distilled water and heating it for 10 to 20 minutes by heating it for 10 to 20 minutes as a hot water extract. It may be obtained by putting it in 2L of alcohol and immersing it for 10 to 20 minutes.

The heating conditions are made in a standard state (STP), and a natural pesticide composition can be finally obtained by mixing the obtained extract and an emulsifier.

In the case of extracting the Gosam extract with an excessive amount of distilled water, there is a problem that phase separation is performed even after sufficiently mixing when mixing with the Pageukcheon extract to add an excessive amount of emulsifier, or to be shaken again immediately before use, and a small amount of distilled water In the case of extracting with a high viscosity, there is a problem that it is difficult to use the mist prevention method.

In the case of extracting the Pageukcheon extract with an excessive amount of alcohol, there is a problem that the concentration of the extract is low, and the insecticidal effect is significantly lowered compared to the amount used during general one-time quarantine. When extracting with a small amount of alcohol, Pageukcheon is the amount of alcohol In contrast, there is a problem that it is difficult to perform the extraction process because it is excessive.

The natural pesticide composition prepared according to the present invention may have one formulation selected from the group consisting of a liquid, emulsion, smoker, fumigant, granule and solid, and preferably may be composed of a liquid.

Preferably, it is composed of a liquid and can be sprayed or applied directly to human skin, or used in a mist prevention method. In this regard, general quarantine methods can be used, and in the case of quarantining a large area such as a water source, it is more preferable in terms of quarantine cost and efficiency to quarantine with a more efficient smoke quarantine method.

The natural pesticide composition according to the present invention can be prepared by the following manufacturing method.

(a) adding the dried gosam in distilled water and heating to obtain a gosam extract, (b) adding the Pagukcheon in 80% alcohol to obtain a Pagukcheon extract, and (c) the extract obtained in the above (a) and (b) steps They can be prepared by a manufacturing method comprising the step of mixing the emulsifier in a state maintained at a temperature of 20 to 25 ℃.

For specific details of each composition, reference may be made to the detailed composition of the natural pesticide composition described above.

The step (c) may be a process of sufficiently stirring each extract and an emulsifier in one stirrer, and is not limited thereto, and any method may be used as long as the extract can be uniformly mixed.

Hereinafter, the present invention will be described in detail through examples. This is only an example of the present invention, and the scope of the present invention is not limited thereto.

Experimental example

100 g of dried gosam roots were added to 1L of distilled water and heated for 15 minutes while maintaining a temperature of 75 to 80°C to obtain a Gosam hot water extract.

Cut to a thickness of about 0.5 cm, dried Pageukcheon was put in 2L of 80% alcohol and immersed for 15 minutes to obtain a Pageukcheon alcohol extract.

Take 35 g of Gosam hot water extract, 15 g of Pagukcheon alcohol extract, and 5 g of emulsifier Tween 80 (Atlas Powder Co.), put into a stirrer, add 45 g of distilled water, and stir for 30 minutes to obtain a pesticide composition.

Comparative Example 1

Baekduhong was cut finely, dried, and then 100g was put in 5L of water and heated at 75-80℃ for 20 minutes to obtain a Baekduhong extract. The repellent composition was prepared by cooling at room temperature to remove the warmth.

Comparative Example 2

Commercially available insecticides (spray type) were purchased and prepared.

Comparative Example 3

In the Example, an insecticide composition was prepared in the same manner except that 35 g of Gosam hot water extract and 15 g of Pageukcheon alcohol extract were added instead of 15 g of Gosam hot water extract and 35 g of Pageukcheon alcohol extract.

Comparative Example 4

In the Example, an insecticide composition was prepared in the same manner, except that 50 g of Gosam hot water extract was added instead of 35 g of Gosam hot water extract and 15 g of Pageukcheon alcohol extract.

Comparative Example 5

In the Example, an insecticide composition was prepared in the same manner, except that 50g of Pageukcheon alcohol extract was added instead of 35g of Gosam hot water extract and 15g of Pageukcheon alcohol extract.

Experimental Example 1

Prepare a transparent acrylic box with a width, length, and height of 20 cm each by preparing 20 birds of the oriental day, small small mites, mosquitoes, rats, and flies, and samples of Examples and Comparative Examples in the form of a circle having a diameter of 10 cm inside. The paper coated with 5 ml each was placed inside the acrylic box.

Each pest was put in a different acrylic box, and the experiment was conducted after preparing the pest to be placed on the paper coated with the sample. Examine the behavior of pests after 10 minutes, 30 minutes, and 1 hour, and (the number of individuals located inside the circle/the number of people located within 3cm distance from the boundary of the circle) are shown in Tables 1 to 3, and the results after 30 minutes are shown. It was shown by the graph of 1.

Table 4 shows the number of individuals appearing to be dead after 1 hour.

Experimental Example 2

Each one of the oriental haru-sal-i, small small-sized mites, mosquitoes, rats, and flies were prepared, and samples of Examples and Comparative Examples were sprayed three times at a distance of 10 cm. After 30 minutes, the activity of each individual was visually checked, and a score of 1 (no activity-dead individual) to 9 (no effect) was scored and shown in Table 5 and shown in FIG. 2.

time division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 10 minutes Oriental daily life 1/3 6/6 0/0 5/2 4/3 3/2 Small small tick 2/2 8/5 0/1 4/3 3/4 3/1 mosquito 5/4 0/1 0/0 6/3 5/7 5/5 sow bug 7/5 8/4 0/0 9/2 6/9 8/8 Paris 6/8 5/9 0/2 5/8 8/3 7/5

(Number of individuals within a circle/ Number of individuals within 3cm of the circle boundary)

time division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 30 minutes Oriental daily life 0/1 7/7 0/0 4/3 3/3 3/4 Small small tick 1/2 5/9 0/0 4/2 5/2 2/4 mosquito 5/6 0/0 0/0 6/8 5/9 7/2 sow bug 6/6 5/8 0/0 9/5 7/4 7/4 Paris 7/3 5/9 0/1 5/7 4/9 10/1

time division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 60 minutes Oriental daily life 0/1 5/7 0/1 4/6 3/5 3/5 Small small tick 1/1 4/5 0/0 3/5 4/5 3/3 mosquito 6/2 0/2 0/2 5/7 6/8 6/8 sow bug 4/9 6/8 0/0 8/3 7/5 6/6 Paris 8/9 6/5 1/3 4/8 6/8 10/2

division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Oriental daily life 15 0 11 One 0 0 Small small tick 4 0 5 0 0 0 mosquito 0 0 13 0 0 0 sow bug 0 0 10 0 0 0 Paris 0 0 7 0 0 0

division Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Oriental daily life One 3 One 3 6 3 Small small tick 3 4 2 4 5 4 mosquito 5 One One 3 4 2 sow bug 9 5 One 8 6 5 Paris 7 6 One 9 8 5

Referring to Tables 1 to 3, it can be seen that the sample of the example has a specific repelling effect against the oriental harusal and the small small-sized mite compared to the samples of the comparative examples.

Referring to Tables 4 and 5, it can be seen that the sample of the Example exhibits a better insecticidal effect than the commercial pesticides for Dongyang Haru. It was confirmed that the sample of the example did not show an insecticidal effect on mosquitoes, rats, and flies, while it was confirmed that it had an excellent insecticidal effect on the oriental daily life. Although the insecticidal effect was somewhat low for the small small mite, it was confirmed that the insecticide that can be used regardless of the pest species sold on the market has an insecticidal effect against all species of pests. I can.

On the other hand, in the case of Comparative Example 3, there was a problem in that the formulation was separated to the extent that the hot ginseng hot water extract and the Pagukcheon extract were visually identifiable during the manufacturing process, so that they had to be shaken again before spraying and use. If an emulsifier is additionally added, it is expected that a stable formulation may be implemented, but it is judged that it is not suitable for the purpose of the present invention to reduce the addition of synthetic ingredients.

In particular, compared with Comparative Examples 4 and 5, the sample of the Example has a specific repelling effect only for oriental haru-sari and small small-sized mites, and while maintaining a stable formulation uniformly mixed without separation of the formulations, the sample of the example has the most excellent repelling effect. I was able to confirm that I had.

On the other hand, Comparative Example 2 is a product that can be used for a variety of pests regardless of the type of pest, and unlike pesticides using natural ingredients, the activity of the pest itself is lowered, and the repelling effect and the insecticidal effect by lowering the activity Was confirmed to have.

When referring to the experiment as described above, it can be seen that the pesticides of the examples are not toxic to all pests, but have a specific pest repelling effect on the oriental harulife and the small small chamois mites. You can confirm what you have. In addition, it can be seen that the different extracts form and maintain the formulation stably even when only the minimum amount of emulsifier is added.

Claims (1)

As a natural pesticide composition comprising tobacco leaf extract, Docomari extract, Gosam extract, Pageukcheon extract, and an emulsifier,
The target pest of the pesticide composition is an oriental harusii or a small petite mite,
The pesticide composition is based on the total weight of the composition, 0.5 to 3% by weight of the tobacco leaf extract, 1 to 5% by weight of the Tokomari extract, 35% by weight of the Gosam extract, 15% by weight of the Pageukcheon extract, and 2 to 10% by weight of the emulsifier Is included in %,
The tobacco leaf extract is obtained by cutting and drying the tobacco leaf finely, adding 100 g to 5 L of water and heating it at a temperature of 60-80°C for 10-20 minutes,
The Docomari extract is obtained by cutting and drying Dokomari finely, and then putting 100g in 5L of water and heating at a temperature of 60-80°C for 10-20 minutes,
The Gosam extract is a hot water extract obtained by adding 100g of Gosam to 1L of distilled water and maintaining the temperature at 70 to 90°C and heating for 10 to 20 minutes,
The Pageukcheon extract is an alcohol extract obtained by putting 100g of Pageukcheon into 2L of 80% alcohol and immersing it for 10 to 20 minutes,
The emulsifier is polysorbate 80, characterized in that, natural pesticide composition.