JPH02215705A - Acarid attractant - Google Patents

Abstract

PURPOSE:To obtain an acarid attractant having effects on almost all kinds of acarids living in ordinary houses, especially on American house dust mite, comprising a food flavor and a triglyceride as active ingredients. CONSTITUTION:An acarid attractant comprising a food flavor and a triglyceride as active ingredients. A chocolate flavor, almond flavor, cheese flavor, bonito flavor, butter flavor, sesame flavor, etc., are preferably used as the food flavor and a purified oil extracted from vegetable or animal is preferable as the triglyceride. The blending ratio of the food flavor (A) and the triglyceride (B) A/B by weight is preferably about 100/1- about 1/100. By catching acarids using this acarid attractant, mediation of infections caused by acarids, metal and physical pains such as blood suction, allergies of child asthma, etc., can be eliminated.

Description

[Detailed Description of the Invention] C. Industrial Application Field] This invention relates to a mite attractant suitable for attracting and capturing sanitary pests such as mites.

[Conventional technology]

In recent years, with advances in construction technology, the airtightness of houses, the spread of air conditioners, and the installation of carpets have created favorable conditions for the inhabitation of mites, and the reality is that the breeding of mites is encouraged. be.

Small animals called sanitary pests such as mites and lice, in addition to transmitting infectious diseases, are harmful to the human body such as blood sucking, biting sucking, and parasitism.
These mites cause physical and mental pain and are a source of allergies for children with asthma and other conditions. For this reason, there is a demand for effective extermination of mites, but the reality is that no effective extermination method or materials for attracting and trapping mites have yet been developed.

[Problem that the invention seeks to solve]

The mites that occur and live indoors in ordinary homes include mites, mites, mites, and mites. Condominium mites were once well known as food mites, but
In recent years, it has been proliferating abnormally on tatami mats.

In addition, while there are some such as mites that do not cause direct damage to humans, there are also mites such as Dermatophagoides mites and mites that cause direct damage to humans as they cause blood-sucking, stinging, and allergy causes such as asthma in children. The above-mentioned mites feed on waste products such as dandruff generated from the human body, food particles, mold, etc., but mites such as claw mites are also known to reproduce by feeding on other mites. Therefore, exterminating all the mites leads to reducing the damage caused by mites. However, zJ-animals such as mites are not only small in size, but also live in small gaps in -m, so it is very difficult to easily confirm their existence with the naked eye, and it is difficult to exterminate them.

By the way, in recent years, an aggregation pheromone for Conifera mites has been synthesized and its attracting effect has been confirmed. That is, Lardoglyplws kn
The presence of an active substance that aggravates the Aphrodisiac mite, Sugar mite, Mugi mite and Woolly mite was discovered in extracts from 1,3,5,7-tetramethyldecyl formate (13,5,7- tetram
ethyldecyl forsate). The above substance is derived from its scientific name, Lard Luer (Lard).
It was named olure. Thereafter, the absolute structure of Rald Lua is (IR, 3R, 5R, 7R)-tetramethyldecyl formate ((IR, 3R).

5R,7R)-tetramethyldecyl
format, l (R: alkyl group) and determination 2
Synthesized. It was confirmed that the synthetic Raldo P Lure exhibits similar activity to the natural product.

However, although the above-mentioned pheromones exhibit strong attraction even in minute amounts, they are species-specific and may limit the types of mites that can be attracted. There is a strong possibility that it will be sufficient, therefore,
The development of attracting and capturing materials for luring mites out of their habitats and capturing them with a suitable attractant has been awaited, and the discovery of an attractant that is not species-specific and is widely effective against mites has been awaited.

On the other hand, the present inventors have searched for foods that have excellent attracting effects, mainly foods that mites like, apart from the above-mentioned lures. As a result, they found that animal and vegetable fats and oils have a strong attracting effect, and found that fatty acid esters contained in the above fats and oils have a strong attracting effect. They also discovered that several types of food flavors contain active ingredients that are effective in attracting mites.

However, even if the above fatty acid esters and specific food flavors are used alone or in combination, they will not attract, for example, Dermatophagoides mites, which are found in large numbers near the tatami surface and are a source of allergies such as childhood asthma. is not necessarily sufficient, and the reality is that there is a need for the development of a mite attractant that exhibits an even better attracting effect on all mites, especially on Dermatophagoides.

The present invention was made in view of the above circumstances, and its purpose is to provide a mite attractant that is not species-specific and exhibits an excellent attracting effect on all mites, especially Dermatophagoides mites. .

[Means for solving problems]

In order to achieve the above object, the tick attractant of this invention
It has a composition in which the active ingredients are food flavor and triglyceride.

[Effect]

In other words, in order to develop an attractant that can easily lure out household mites, especially Dermatophagoides mites, the present inventors sought to improve the attracting effect of food flavors, which have been known to have an attracting effect. I came up with the idea that it might be a good idea to add something else to the mix to increase the effect. and,
Research focused on improving the attractive effects of various products that can be used in combination with food flavors. As a result, they discovered that the mite-attracting effect can be further enhanced by using triglyceride in addition to food flavor, and have arrived at this invention.

The tick attractant of this invention is obtained using food flavor and triglyceride.

The food flavor mentioned above is chiccolate.

Flavors include almond, cheese, bonito, butter, and sesame, which may be used alone or in combination. As the food flavor, both flavors extracted from natural substances and synthetic flavors are suitably used.

The above triglyceride is obtained by esterifying fatty acids and glycerin,
The type of fatty acid mentioned above is not particularly limited.

From the viewpoint of effectiveness, it is preferable to use refined oil extracted from plants or animals as the triglyceride.

The mixing ratio of the food flavor (A) and triglyceride (B) is A/B-100/1 to 1/100 by weight.
It is preferable to set it within the range of .

Furthermore, the mite attractant of the present invention may use the pheromone in combination with the food flavor and triglyceride.

When using the above-mentioned food flavor, triglyceride, and pheromone as an attractant, the mixed attractant compound may be simply adsorbed on filter paper or other porous substrate as it is, but it is preferable to use it in a formulation. Forms of preparations include: ■ a rubber septum or polyethylene cap impregnated with the tick attractant; ■ encapsulated in a film that allows control of the release rate of the active ingredient; and ■ a substance through which the active ingredient cannot pass. (1) Enclosed in a hollow can with one end open; (2) Enclosed in a sheet with a multilayer structure in which both outer liquid layers are made of a film that controls the release of the active ingredient; Examples include those encapsulated within a membrane structure that controls the release rate.

The above-mentioned mite attractant can be used by setting it in an appropriately shaped trap, or by forming a material layer with an adhesive layer on the surface of the base material and placing the attractant on this surface layer. is valid. It is also effective to mix a mite attractant into the adhesive composition to form a layer of an adhesive substance on the surface of the base material.

The above-mentioned sticky substance may be liquid or semi-solid at room temperature. For example, oils, softeners, liquid rubber, liquid resins, natural proteins, multi-I! Polymeric Substances 9 Pressure-sensitive adhesive substances containing synthetic resin as a main component, adhesive hydrogels, and the like can be mentioned. As a method for capturing such mites, the above-mentioned adhesive substance is laminated onto the surface of a base material such as a film, sheet, molded product, etc. by means such as extrusion, roll, brush, spray, etc. ! ! After applying an attractant to the surface of an adhesive sheet, etc., place it with the adhesive layer facing upwards, or place it with the adhesive layer facing downwards, in areas where mites are thought to inhabit. A method is adopted in which it is placed in a In the latter case, it is preferable to interpose a net-like or pillar-like spacer so that the adhesive surface does not come into direct contact with the carpet or the like. More specifically, as shown in the drawings, an adhesive layer 2 is provided on the surface of the mite-killing sheet 1, and a mite attractant 3 is further placed in the center of the adhesive N2. Then, these are covered with a mesh spacer 4. Next, the surface of the adhesive layer 2 of the adhesive layer 2 is faced down and applied onto carpets and tatami mats. When applied with the adhesive layer 2 facing upward,
The effectiveness of trapping mites may be lower. However, when applying the adhesive layer 2 with the surface facing downward, the surface of the adhesive layer 2 comes into direct contact with the surface of the carpet or tatami mat, so dirt, dust, etc. are captured along with the mites, and furthermore, the mites are removed. When collecting the sheet 1, it may be difficult to separate it from the carpet and tatami. For this reason, as described above, the mesh spacer 4 is provided.

The material used for the mesh spacer 4 should preferably have some degree of flexibility; for example, general plastic mesh or wire mesh is suitable, but coarse nonwoven fabric may also be used. In addition, as mentioned above, when using the adhesive layer 2 with the surface facing downward, it is possible to increase the capture efficiency by applying a weight of about 50 g per LED and burying the adhesive layer 2 in the carpet. will improve. Adhesive layer 2
The same applies to the case where the 0 side faces upward.

In general, the size of the mite extermination sheet necessary for trapping mites is sufficient with an adhesive area of 25 to 200 CII;
You only need to place a mite attractant of about 4 in size in the center of the adhesive surface.If you want to target mites in the entire room, the mite extermination sheet must be large enough to match the size of the room. The preferred amount of active ingredients contained in the agent is 5 to
100 ■, which can be expected to have a sufficient attracting effect.

Next, methods for detecting mites captured on the surface of the adhesive layer 2 include a method of directly counting them using a microscope or a magnifying glass, and a method of simply detecting them with the naked eye. This method of easily detecting ticks with the naked eye involves crushing captured mites to release body fluid, and reacting this body fluid with a specific color-forming compound to develop a color, which can then be detected with the naked eye. The above method can be easily realized by pressing a sheet made of a composition containing a compound that develops color by reacting with body fluids of mites onto an adhesive surface on which mites have been captured. In addition, by mixing a coloring compound/substance and a mite attractant into the adhesive composition and forming an adhesive surface on the surface of the base material,
Mites can be detected more easily.

As the above-mentioned color-forming compound, ninhydrin, 24.6-
Examples include sodium dolinitrobenzenesulfonate and Broca staining solution.

[Effects of the Invention] As described above, the mite attractant of the present invention contains food flavor and triglyceride as active ingredients, and its attracting action attracts most types of mites that live in ordinary households, especially conventional mites. This makes it possible to lure and capture the Dermatophagoides mites, which were difficult to attract, from their habitat. Therefore, by capturing ticks using this, it becomes possible to eliminate the transmission of infectious diseases caused by ticks, mental and physical pain such as blood sucking, and allergies such as childhood asthma.

Next, examples will be described together with comparative examples.

[Example 1] An acrylic adhesive was applied to a thickness of 50 μm on the surface of a polyethylene terephthalate (rPETJ) base material with an area of 10 cm x 10 cm, and in the center of the surface of the adhesive layer,
ICllXIC1 adsorbed with chocolate flavor 10■ and salad oil 10mg as mite attractants
1 filter paper was installed. Further, a 1 mφ nylon thread net was provided above the surface of the adhesive layer so that a gap of 41 m×4III11 existed. Next, five pieces of the above-mentioned mite-attracting and capturing substrates were applied onto a living room carpet with the adhesive side attached with a net facing downward.

After leaving it for 2 days, the number of mites attached to the adhesive layer was counted using a microscope.

[Comparative example 1] Only 10 μ of chocolate flavor was used.

Other than that, the procedure was the same as in Example 1, and the number of mites attached to the adhesive layer was counted using a microscope.

[Example 2] Almond flavor 10■ and salad oil 10■ were used as mite attractants. Other than that, the procedure was the same as in Example 1, and the number of mites attached to the adhesive layer was counted using a microscope.

[Example 3] Almond flavor (10) and sesame oil (10) were used as mite attractants. Other than that, the procedure was the same as in Example 1, and the number of mites attached to the adhesive layer was counted using a microscope.

[Comparative Example 2] Only Almond Flavor 10■ was used as a mite attractant. Other than that, the procedure was the same as in Example 1, and the number of mites attached to the adhesive layer was counted using a microscope.

The results of the above Examples and Comparative Examples are shown in the table below.

Note that the number of mites is the average number of mites caught per one piece of ura-haru substrate.

From the results in the table above, Example 1 using food flavor and salad oil showed 2.6 times the attraction effect compared to Comparative Example 1 using only food flavor, and food flavor and salad oil also had a Examples 2 and 3 using sesame oil showed an attraction effect 4 to 5 times greater than that of Comparative Example 2 in terms of attraction number.

This shows that the tick attractant using food flavor and triglyceride has an excellent attracting effect.

[Brief explanation of the drawing]

The drawing is an explanatory diagram of a substrate for attracting and capturing ticks. 1...Mite extermination sheet 2...Adhesive layer 3...Mite attractant 4...Net patent applicant Nitto Denko Co., Ltd. agent Patent attorney Yukihiko Nishifuji

Claims (4)

[Claims] (1) A tick attractant characterized by containing food flavor and triglyceride as active ingredients. (2) The tick attractant according to claim (1), wherein the food flavor is at least one food flavor selected from the group consisting of thiokolate flavor, almond flavor, cheese flavor, bonito flavor, butter flavor, and sesame flavor. (3) The tick attractant according to claim (1) or (2), wherein the triglyceride is a refined oil extracted from a plant. (4) The tick attractant according to any one of claims (1) to (3), wherein the triglyceride is a refined oil extracted from animals.