JP2006056862A - Deodorizer containing polyisoprene - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deodorizer which is safe and has high deodorizing effect. <P>SOLUTION: The deodorizer contains polyisoprene and is safe and has high deodorizing effect. The polyisoprene is preferably trans-polyisoprene. The polyisoprene can be obtained from natural substances, and in this instance, it is more preferred to use trans-polyisoprene extracted from Eucommia ulmoides Oliver and Palaquim gutta. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a deodorant. More particularly, the present invention relates to a deodorant containing polyisoprene.

  In recent years, people's interest in fragrances and odors has increased, as represented by the aromatherapy epidemic. Under these circumstances, the demand for fragrances and deodorants is increasing, and in particular, as people's health consciousness increases, they prefer deodorants made from natural products from the viewpoint of safety. Consumers are increasing.

Regarding the use of plant-derived materials as deodorants, the following reports can be given.
That is, regarding the conifer "Aspalathus Linearis" native to South Africa, which is a raw material of rooibos tea known as a health drink, it has been reported that the aqueous extract obtained from the leaves has a deodorizing action (patent document) 1). It has also been reported that mushroom (also called champignon and mannentake) fruit bodies are used as a deodorant (see Patent Document 2 and Patent Document 3). In addition, rice bran extract (patent document 4), rice bran (patent document 5), perilla (patent document 6), red beet and the like (patent document 7), seaweed (patent document 8), quercus etc. (patent document 9) Patent Document 10), gramineous plant extracts (Patent Document 11), sage, rosemary (Patent Document 12), green tea (Non-Patent Document 1) and the like have been reported to have a deodorizing effect.
JP-A-7-31580 JP-A-2-277456 JP-A-5-38358 JP-A-61-87562 JP 57-180959 A JP 60-214726 A JP 60-207664 A Japanese Patent Laid-Open No. 62-152463 JP-A-61-206448 JP 62-181048 A JP-A-2-167168 JP-A-57-203445 Biosci. Biotech. Biochem., 59 (7), 1232-1236, 1995

  An object of the present invention is to provide a deodorant having high safety and a more excellent deodorizing effect.

  The present inventors have intensively studied to solve the above-mentioned problems, and have found that Tochu has an excellent deodorizing effect (Japanese Patent Application No. 2004-130482). However, the details of Tochu's deodorization mechanism were still unknown.

Under such circumstances, the present inventors proceeded with further research, found that polyisoprene, which is a component contained in Tochu et al., Has an excellent deodorizing effect, and completed the present invention.
That is, the present invention relates to the following matters.
(1) A deodorant containing polyisoprene as a deodorant component.
(2) The deodorizer according to (1) above, wherein the polyisoprene is obtained from a natural product.
(3) The deodorizer according to (1) or (2) above, wherein the polyisoprene is cis-type polyisoprene.
(4) A deodorant containing natural rubber as a deodorant component.
(5) The deodorizer according to any one of (1) to (3), wherein the polyisoprene is obtained from a plant of Euphorbiaceae.
(6) The deodorizer according to (4) above, wherein the natural rubber is obtained from a plant of Euphorbiaceae.
(7) The deodorizer according to any one of (1) to (3) and (5) above, wherein the polyisoprene is obtained from para rubber tree.
(8) The deodorizer according to (4) or (6) above, wherein the natural rubber is obtained from para rubber tree.
(9) The deodorizer according to (1) or (2) above, wherein the polyisoprene is a trans-type polyisoprene.
(10) A deodorant containing gutta percha as a deodorant component.
(11) The deodorizer according to (1), (2) or (9) above, wherein the polyisoprene is obtained from a Eucommia plant.
(12) The deodorant according to (10) above, wherein gutta percha is obtained from a Eucommia genus plant.
(13) The deodorizer according to (1), (2), (9) or (11) above, wherein the polyisoprene is obtained from Tochu leaves.
(14) The deodorant according to (10) or (12), wherein gutta percha is obtained from Tochu leaves.
(15) The deodorizer according to (1), (2) or (9) above, wherein the polyisoprene is obtained from a plant belonging to the genus Palaquium.
(16) The deodorant according to (10) above, wherein gutta percha is obtained from a plant belonging to the genus Palaquium.
(17) The deodorizer according to (1), (2), (9) or (15) above, wherein the polyisoprene is obtained from gutta percanoki.
(18) The deodorizer according to (10) or (16) above, wherein the gutta percha is obtained from gutta percanoki.
(19) The deodorizer according to the above (1), (2) or (9), wherein the polyisoprene is obtained from a plant of the genus Payena.
(20) The deodorant according to (10) above, wherein gutta percha is obtained from a plant of the genus Payena.
(21) The deodorizer according to (1), (2) or (9) above, wherein the polyisoprene is obtained from a plant belonging to the genus Mimusops.
(22) The deodorant according to (10) above, wherein gutta percha is obtained from a plant belonging to the genus Mimusops.
(23) The deodorizer according to (1), (2), (9) or (21), wherein the polyisoprene is obtained from balata rubber tree.
(24) The deodorizer according to (10) or (22) above, wherein gutta percha is obtained from balata gum.
(25) The deodorizer according to (1), (2) or (9) above, wherein the polyisoprene is obtained from an Achras genus plant.
(26) The deodorant according to (10) above, wherein gutta percha is obtained from a plant of the genus Achras.
(27) The deodorizer according to (1), (2), (9) or (25) above, wherein the polyisoprene is obtained from sapodilla.
(28) The deodorizer according to (4) above, wherein the natural rubber is obtained from sapodilla.
(29) The deodorizer according to (10) or (26), wherein gutta percha is obtained from sapodilla.
(30) A deodorant containing chicle as a deodorant component.
(31) The deodorizer according to any one of (1) to (30) above, wherein the polyisoprene, natural rubber, gutta percha or chicle is fibrous.
(32) The deodorizer according to any one of (1) to (31) above, wherein the polyisoprene, natural rubber, gutta percha or chicle is obtained by extraction with an organic solvent.
(33) The deodorizer according to any one of (1) to (32), which is in a liquid form.
(34) The deodorizer according to any one of (1) to (32), which is in a solid form.
(35) The deodorizer according to any one of (1) to (34), wherein polyisoprene, natural rubber, gutta percha or chicle is supported on a carrier.

  According to the present invention, a deodorant having high safety and an excellent deodorizing effect is provided.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail.
The present invention is a deodorant containing polyisoprene. In the present invention, various types of polyisoprene can be used. In particular, trans-type polyisoprene has a very excellent deodorizing effect and is preferable.

Polyisoprene Generally, polyisoprene refers to a polymer of isoprene (2-methyl-1,3-butadiene), and natural polyisoprene and synthetic polyisoprene exist. As shown in Chemical Formula 1, natural polyisoprene includes polyisoprene having a 1,4 bond in a cis form and polyisoprene having a 1,4 bond in a trans form (generally called “gutta”). Further, the isoprenoid means a group of natural organic compounds having isoprene as a structural unit, like natural polyisoprene. On the other hand, in addition to the above two types, synthetic polyisoprene includes polyisoprene bonded by 1, 2 bonds or 3, 4 bonds.

  The trans-type polyisoprene used in the present invention is a compound in which isoprene is bonded mainly through trans-type 1,4 bonds, and may be obtained from nature or obtained by synthesis. However, from the viewpoint of safety, trans-polyisoprene obtained from nature is preferable.

  The molecular weight and the degree of polymerization of the polyisoprene of the present invention are not particularly limited, but polyisoprene having a high degree of polymerization or polyisoprene having a low degree of polymerization can be used depending on the application. In view of ease of handling, the number average molecular weight of the polyisoprene of the present invention is preferably 500 to 10,000,000, more preferably 500 to 5,000,000, still more preferably 1,000 to 5,000,000, still more preferably 5,000 to 1,000,000, and still more preferably. 5,000 to 500,000, most preferably 5,000 to 200,000.

  Trans-polyisoprene that can be used in the present invention has been used as an insulator for submarine cables and a shell material for golf balls, and has been used for several million tons per year. Production volume is small, natural products are only used in small quantities as dental materials, and most are synthetic products.

  Any reagent, catalyst, and reaction can be utilized when the polyisoprene of the present invention is obtained by chemical synthesis. Therefore, for example, it is possible to synthesize isoprene as a raw material and peroxide, a Friedel-Crafts compound, an alkali metal, and alphine as a catalyst. It is preferable to synthesize using a lithium or Ziegler catalyst in that a trans polyisoprene can be selectively synthesized.

The polyisoprene of the present invention can also be obtained from natural products. In this case, any plant can be used as a natural product as long as it is a plant that produces polyisoprene.
In general, polyisoprene produced by plants can be classified into three types because of its structure. That is, cis-type polyisoprene, trans-type polyisoprene, and polyisoprene in which cis-type and trans-type are mixed. Among natural polyisoprenes (isoprenoids), there are many plants that produce cis-type polyisoprene, and it is known that the number is over 2000 species. Specifically, as plants that produce cis-type polyisoprene, for example, plants of the family Mulaceae, Asteraceae, and Musselae are known, and Para rubber tree (Hevea brasiliensis) is particularly famous. .

  On the other hand, there are very few plants that produce trans polyisoprene, and only a few types are known, including plants of the genus Eucommia, Palaquium, and Payena. Specifically, Eucommia ulmoides Oliver, Palaquim gutta, and balata rubber tree (Mimusops balata) are known as plants that produce trans-type polyisoprene. Further, as a plant that produces a mixture of cis-type polyisoprene and trans-type polyisoprene, sapodilla (Achras zapota) is known.

  Therefore, it is possible to obtain the polyisoprene of the present invention from the above-mentioned natural products. For example, when obtaining trans-type polyisoprene, it is possible to use well-known trans-polyisoprene-producing plants such as Tochu, Gutta-percanoki, Balata rubber, sapodilla, and to produce trans-type polyisoprene. Even if it is a plant, if it is a plant which produces trans-type polyisoprene, it can be used for this invention. Since the number of cultivation is large, as the trans-type polyisoprene-producing plant used in the present invention, Tochu, Gutta Percan, and Balata rubber are preferable.

  In the present invention, polyisoprene obtained from various plants can be used depending on the application. That is, since polyisoprene obtained from natural products has different properties depending on the plant, in the present invention, the plant can be selected according to the application.

  Moreover, in this invention, the polyisoprene obtained from every site | part of a plant can be used according to a use. That is, since the polyisoprene obtained from a plant differs in the structure and properties of the polyisoprene obtained depending on the plant part to be extracted, in the present invention, the plant part can be selected according to the use. Therefore, in the present invention, the part of the polyisoprene-producing plant that can be used as a deodorant is not particularly limited, and examples thereof include leaves, bark, fruits, seeds, petiole, xylem, and roots. In addition, the polyisoprene-producing plant that can be used in the present invention may be artificially cultivated or naturally occurring.

  In general, Tochu contains fibrous trans-type isoprene rubber in leaves, bark, etc., and there are many low molecular weight polyisoprenes near the formation layer and many fibrous high molecular weight polyisoprenes near the skin. (Nakazawa et al., “Elucidation of Biosynthetic Mechanism of Hydrocarbon Producing Plants and Application to Molecular Breeding”, Proceedings of the 19th Biotechnology Symposium, 2001). Furthermore, the content of the trans-type isoprenoid was different depending on the part of Tochu, and was 1.7% leaves, 5.3% bark, 8.5% seed coat, 2.8% roots per dry weight, It has been reported that the molecular weight distribution of isoprene obtained from each part of Tochu is different, the molecular weight of the leaves derived from the leaves is small, and the molecular weight derived from the bark, root and seed coat is large (Table 1, "Tochu ( "Chemical study on polyisoprenoids produced by Eucommia ulmoides Oliver", Kenji Baba, Ph.D. dissertation, Osaka University, 2001).

  Moreover, in this invention, the one where the surface area of a polyisoprene is larger can contact more with the gas containing a bad odor, and it can anticipate that the deodorizing effect becomes favorable. Therefore, as the polyisoprene of the present invention, fibrous polyisoprene is preferable.

  In addition, the polyisoprene of the present invention can be chemically or physically modified depending on the application. Therefore, any known modification and modification operations can be performed on the trans-type polyisoprene of the present invention. Specifically, crosslinking treatment or surface treatment can be performed, and physical properties, surface characteristics, and the like can be improved.

Explanation of Terms Terms used in the present invention will be described below.
In the present invention, “polyisoprene” means a polymer of isoprene (2-methyl-1,3-butadiene). Generally, polyisoprene includes a polyisoprene derived from a natural product and a polyisoprene chemically synthesized. In general, there is no clear definition for the degree of polymerization of polyisoprene, but the polyisoprene in the present invention means an isoprene polymer having a degree of polymerization of 9 or more.

  In the present invention, “natural polyisoprene” means polyisoprene produced by natural products and is also called isoprenoid. In general, it is known that natural polyisoprene includes cis-type polyisoprene having 1,4 bonds and trans-polyisoprene having 1,4-bonds, and natural trans-polyisoprene is also called “gutta”.

  In the present invention, “natural rubber” refers to a thermoplastic substance mainly composed of cis-type polyisoprene obtained from plant emulsion. It is known that natural rubber contains proteins in addition to cis-type polyisoprene. The natural rubber as used herein includes, for example, thermoplastic materials obtained from plants of Euphorbiaceae, Mulberry, Compositae, and Gagaidae. Euphorbiaceae (Hevea brasiliensis) is particularly famous.

  In the present invention, “gutta percha” is also called gutta percha and refers to a thermoplastic substance mainly composed of trans-polyisoprene (gutta) obtained from plant emulsion. It is known that gutta percha contains resinous esters in addition to trans-polyisoprene. As used herein, gutta percha includes, for example, thermoplastic materials obtained from the emulsions of Eucommia, Palaquium, Payena, Mimusops and Achras plants. Eucommia genus plants include Tochu, Paraquium genus plants include gutta percanoki, Mimusops genus Balata rubber, and Achras genus plants include sapodilla, but are not limited thereto.

  It is known that gutta percha derived from balata rubber tree does not crystallize at room temperature, and is more flexible and flexible than gutta percan tree. In the present invention, the “chickle” is obtained by dehydrating an emulsion obtained from a trunk branch of the Achras genus Achras (Achras zapota). The composition of polyisoprene is about 3: 7 in cis and trans forms.

Trans-type polyisoprene-producing plants As described above, plants of the genus Eucommia, the genus Palaquium, the genus Payena, and the genus Mimusops are known as plants that produce trans-polyisoprene. Specifically, Eucommia ulmoides Oliver, Palaquim gutta and Mimusops balata are known. Moreover, since sapodilla (Achras zapota) produces a mixture of cis-type and trans-type polyisoprene (cis-type: about 30%, trans-type: about 70%), it is included in the trans-type polyisoprene-producing plant of the present invention. .

  Among trans-polyisoprene-producing plants, Tochu is one of the few plants that grow in the temperate zone and is cultivated in Japan, and is therefore preferred as a plant that can be used for the deodorant of the present invention.

  In the case of using Tochu as a trans-type polyisoprene-producing plant, it is preferable to use Tochu leaf because it grows quickly and is easy to handle. In other words, it can be harvested from the second year, and it can be harvested any number of times every year, and it is easy to harvest. It takes 18 years and once harvested it takes 6-7 years to regenerate. In addition, seeds of Tochu can only be collected from female trees, and the yield of seed coats is not large. Furthermore, as described above, polyisoprene derived from Tochu leaves has a lower molecular weight than polyisoprene obtained from Tochu seed coat and bark, so that there is a relatively highly reactive terminal acyl group per unit weight. It is thought that many are included. In the present invention, “Takanaka leaf” means Tonaka leaf. There is no particular limitation on the Tochu Naka leaf that can be used in the present invention, and any Tochu leaf can be used, but preferably from April to October, more preferably from May to August, and even more preferably from July to August. The collected fresh leaves or roasted leaves, or the fresh leaves or roasted leaves of the current branch can be used. Here, “live leaves” in the present invention means leaves after harvest and before drying.

Extraction of polyisoprene In the present invention, polyisoprene obtained by extraction from a polyisoprene-producing plant can be used.

  The extraction of polyisoprene can be performed by any method known to those skilled in the art. Therefore, in the present invention, the extraction conditions including the extraction solvent are not limited, and any conditions may be used as long as polyisoprene can be extracted.

  In general, since polyisoprene is soluble in an organic solvent, it is preferable to perform extraction using an organic solvent. Examples of the solvent that can be used for extraction include toluene, benzene, chloroform, ether, ethanol, acetone, and the like. Because of its high solubility, it is preferable to extract trans-polyisoprene using a mixture of one or more solvents selected from the group consisting of toluene, benzene, chloroform and petroleum ether. Moreover, it is preferable to extract with the heated solvent from a viewpoint of extraction efficiency.

  Further, in the extraction, other components can be added for reasons such as improving the extraction efficiency. Examples thereof include organic acids such as succinic acid, citric acid, malic acid, acetic acid and ascorbic acid, sugars such as fructose, sucrose, maltose and glucose, and enzymes such as cellulase and amylase.

  Moreover, the extraction solvent can be removed from the extracted liquid after extraction, and it can also be made into a powder form or a granular form. For example, it can be pulverized after being evaporated and dried, or dried by spray drying or freeze drying. In the present invention, polyisoprene can also be obtained by solvent precipitation or fractional precipitation. For example, solvent precipitation with a mixed solvent of benzene / methanol, toluene / methanol, and benzene / ethyl acetate can be performed.

  Furthermore, in the present invention, various treatments can be performed to remove impurities and the like. For example, in order to remove low molecular compounds and the like, preliminary extraction with alcohols such as methanol and ethanol, acetone, or an aqueous solvent may be performed.

  In addition, in the present invention, the extract after extraction can be purified by any known method for various purposes such as removal of impurities. Therefore, for example, the extract can be purified by methods such as centrifugation, filtration, solvent precipitation, and recrystallization.

  In this invention, when extracting from a polyisoprene producing plant, you may extract directly from the extract | collected plant, or you may extract after performing pre-processing to the extract | collected plant. Examples of the pretreatment include steaming, twisting, drying, roasting, cutting, crushing, and pulverization. Moreover, the order and frequency | count of each process are not specifically limited, Two or more processes can also be performed simultaneously. In the present invention, from the viewpoint of extraction efficiency, it is preferable to extract the polyisoprene-producing plant after reducing it to an appropriate size.

Use Mode of Deodorant The object of deodorization of the deodorant of the present invention is not particularly limited, and examples thereof include sulfur compounds such as mercaptan, nitrogen-containing compounds such as indole, skatole, ammonia, urea, and amine. it can. In particular, the deodorizer of the present invention has an excellent deodorizing effect on garlic odor (such as allyl sulfide) and / or raw odor (such as ammonia and trimethylamine). Therefore, the deodorizer of the present invention can also be used for so-called S-type odors of thiol or mercapto type, and so-called N-type odors of ammonia or amine type.

  Therefore, the deodorizer of the present invention can be used for any object for the purpose of deodorization. For example, body odor, beard odor, bad breath, pet odor, toilet odor, kitchen odor, refrigerator odor, fish and vegetable food odor, cigarette odor, clothing odor, shoe odor, river and sea odor The deodorant of the present invention can be used against bad odors from various factories. That is, the deodorant of the present invention is, for example, a breath deodorant, body odor deodorant, pet deodorant, livestock deodorant, kitchen deodorant, toilet deodorant, indoor deodorant It can be used as a deodorant, a daily deodorant, a car deodorant, and an industrial deodorant.

  In the deodorant of the present invention, polyisoprene may be used in a state mixed with a solvent or supported on a carrier, or may be used as it is, and its use mode is not particularly limited. . For example, a liquid containing polyisoprene may be used as a deodorant as it is, or polyisoprene may be used as a deodorant in a powder state. Furthermore, in the deodorizer of the present invention, it is preferable to increase the surface area of polyisoprene in order to further enhance the deodorizing effect.

  When the deodorant of the present invention is used in a state where it is supported on a carrier, any known material can be used as the carrier. For example, gums such as agar, gelatin, carrageenan and gum arabic, gels such as polyvinyl alcohol and polyacrylamide, fibers such as cellulose, porous materials such as zeolite, porous glass, ceramics, activated carbon, silica and silicate Can be mentioned. In addition, starch and lactose can be mentioned.

  In the present invention, polyisoprene may be subjected to a surface treatment according to the purpose. Therefore, for example, in order to improve the solubility in water, the polyisoprene can be modified such as coating.

  The deodorant of the present invention may be used in any form. That is, in addition to powder and liquid, it can be used in the form of granules, granules, blocks, powders, suspensions, gels, pastes, and sprays. In this case, various excipients may be used, and examples of the excipient include zeolite, lactose, starch, dextrin, various dextrin derivatives, crystalline cellulose, chitin, chitosan, and the like. It is not limited.

  The deodorant of this invention can be mix | blended with all materials. For example, it can be blended in fabric, paper, non-woven fabric, wood, inorganic porous material, various fibers, various resins, various liquids, films, and sheets.

  Since the deodorizer of the present invention has high safety, it can be used for humans and animals. For example, it can be blended in confectionery such as gum, candy, film-shaped candy, gummi, sugar-coated gummy, and tablet, health food such as tablets, granules, and capsules, various beverages such as drinking water and drinks, and various seasonings. Moreover, it can also mix | blend with oral products, such as toothpaste, a bad breath prevention agent, and a denture cleaning agent, pharmaceuticals and quasi-drugs, such as a gastrointestinal agent, a bath agent, a patch, and a compress. Furthermore, it can be blended in animal feeds.

  The deodorant of the present invention can be used alone, or can be used in combination with other deodorants and deodorant components. There is no particular limitation on the deodorant that can be used in combination. For example, it is used in combination with an adsorbent or porous material such as activated carbon, silica gel, alumina, α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, cluster dextrin, etc. be able to.

  The deodorant of the present invention may be used in any way. For example, the deodorant of the present invention can be used by contacting the gas or liquid containing odor with the deodorant of the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples. The following examples do not limit the scope of the present invention.
[Production Example 1] Extraction of trans-polyisoprene derived from Tochu After collecting Tochu Naka leaves, they were dried by a microwave oven (600 W, 2450 MHz, 10 minutes) and crushed by a blender (2500 rpm, 30 seconds). Subsequently, in order to remove low molecular weight compounds, 2 g of crushed Tochu Nakaba was put into a cylindrical filter paper, and Soxhlet extraction with ethanol (first grade, manufactured by Shinwa Alcohol Industry) was performed under nitrogen for 24 hours. Subsequently, Soxhlet extraction with toluene (special grade, manufactured by Wako Pure Chemical Industries, Ltd.) was performed for 24 hours under nitrogen to obtain a trans-type polyisoprene extract. This extract solution was made into a toluene solution having a polyisoprene concentration of 0.1 to 1%, and dropped into 20 times or more of methanol to cause solvent precipitation to remove impurities. After repeating the solvent precipitation three times, precipitation was performed by recrystallization with hexane to obtain trans-polyisoprene derived from Tonaka.

[Example 1] Deodorizing experiment on allyl sulfide The deodorizing effect of various samples was evaluated on allyl sulfide, which is the main component of garlic odor.

(1) Evaluation sample Evaluation samples consisted of five types: trans-polyisoprene extracted from Tochu Naka, gutta percha derived from gutta percanoki, natural rubber derived from para rubber tree, rooibos extract powder, champignon extract powder (containing 21% champignon extract), A system in which no deodorant was added was used as a blank (control). Details of each sample are as follows.
Trans-type polyisoprene (Takanakaba) : Trans-polyisoprene produced by the method of Production Example 1 and extracted from Tatsunakaha.
Gutta percha (Gutta percanata) : Gutta percha extracted from gutta percha. The sap collected from gutta percanoki was pulverized with a mill mixer (IWATANI) to prepare a sample.
Natural rubber : Sap collected from para rubber tree was fragmented to 1 mm square and used as a sample.
Rooibos extract powder : Powder obtained by concentrating rooibos alkali extract by spray drying with trehalose was used.
Champignon extract powder : Powder containing 21% by weight of mushroom (champignon) extract, 9% by weight of DL malic acid, and 70% by weight of dextrin was used.

(2) Evaluation method Preparation of stock solution 100 μl of allyl sulfide (manufactured by Tokyo Chemical Industry Co., Ltd.) was added to a 10 ml volumetric flask, and the volume was made up with methanol and shaken well to prepare a 1% allyl sulfide solution. 30 μl of the obtained 1% allyl sulfide solution was added to a 100 ml volumetric flask, diluted with water and shaken well to prepare a 3 ppm allyl sulfide solution.
2. Deodorization Experiment 2 ml of 3 ppm allyl sulfide solution was dispensed into a 20 ml vial. Furthermore, 24 mg of various samples were weighed on a medicine wrapping paper, and various deodorants weighed were added to the vial bottle. Thereafter, the vial was sealed, stirred and allowed to stand at room temperature for 1 hour. In addition, the thing which does not add a sample was made into the blank.
3. Analysis of Allyl Sulfide The above vial was set in a headspace autosampler (Hewlett Packard 7694), and gas chromatography analysis was performed using 6890 made by Hewlett Packard.

Here, the conditions of the headspace autosampler were an oven temperature of 50 ° C., a sample loop temperature of 55 ° C., a transfer line temperature of 55 ° C., a sample heating time of 10 minutes, and an injection time of 0.2 minutes. The gas chromatograph conditions were He: 15 ml / min, H ₂ : 50 ml / min, Air: 80 ml / min, the column temperature was 60 ° C., and the temperature was raised to 250 ° C. at 15 ° C./min. The inlet temperature was 250 ° C., the detector temperature was 250 ° C., the detector was FPD, and the column was a capillary column (TC-1 manufactured by GL Sciences, inner diameter 0.53 mm, length 30 m).
4). Calculation of deodorization rate The deodorization rate was calculated according to the following formula from the peak area value (integrated value) of the detected allyl sulfide.
Deodorization rate (%) = 100 × (blank integral value−sample integral value) / blank integral value)
(3) Evaluation results Table 2 shows the evaluation results. As can be understood from Table 2, the trans-type polyisoprene, gutta percha and natural rubber, which are the deodorizers of the present invention, have less garlic odor and excellent deodorant compared to the blanks to which no deodorant is added. It became clear that it had an effect. Furthermore, the deodorizer of the present invention showed a very high deodorizing effect even when compared with rooibos extract powder and champignon extract powder, which are conventionally known deodorants derived from natural products.

[Example 2] Deodorizing experiment on ammonia and trimethylamine The deodorizing effect of various samples was evaluated against the so-called N-based odor. Specifically, the deodorizing effect was evaluated on ammonia and trimethylamine which cause raw odor.

(1) Evaluation sample The same sample as in Example 1 was used. However, for gutta percha derived from gutta percanoki, a lump before pulverization and a pulverized gutta percha were evaluated as samples. The size of the lump-shaped gutta percha was 1 cm or more and 3 cm or less. The crushed gutta percha was passed through a stainless steel sieve, and those having a size of 300 μm square or less were separated and used. In this example, the massive gutta percha before pulverization was gutta percha (large), and the gutta percha after pulverization was gutta percha (small).

(2) Evaluation method Deodorizing experiment 0.2 g of each sample powder was put into a glass 10 ml beaker (outer diameter 30 mm, height 40 mm), and a 10 ml beaker without any blank was also prepared. These beakers were placed in a 300 ml conical beaker (outer diameter 84 mm, height 135 mm).

Ammonia or trimethylamine as a bad odor source was poured into the above 10 ml beaker, immediately sealed with Parafilm (registered trademark) and aluminum foil, and allowed to stand at 25 ° C. and 60% humidity for 1 hour.
2. Gas Detection 100 ml of gas in the container was sucked with a glass syringe, and the concentrations of ammonia and trimethylamine were measured with a Gastec detector tube.
3. Calculation of deodorization rate The deodorization rate for the blank was measured by the following formula. In addition, the gas concentration of a blank is the gas concentration measured after putting the beaker which put only the malodorous source without putting the evaluation sample, and leaving it still for 1 hour.
Deodorization rate (%) = 100 × (blank gas concentration−gas concentration of evaluation sample) / (blank gas concentration)
(3) Evaluation results Table 3 shows the evaluation results.

  As can be understood from Table 3, the deodorizer of the present invention containing polyisoprene was found to have an excellent deodorizing effect as compared with conventionally known deodorizing materials. . Furthermore, it was confirmed that trans-type polyisoprene has an excellent deodorizing effect as compared with natural rubber containing cis-type polyisoprene. Moreover, it became clear from the data of gutta percha derived from gutta percanoki that the deodorizing effect increases as the surface area increases. Even when a sample of gutta percha with a small surface area is used, the deodorization rate is higher than that of natural rubber, indicating that trans polyisoprene has a significantly better deodorizing effect than cis polyisoprene. It was done.

Claims (12)

  A deodorant containing polyisoprene.   The deodorizer according to claim 1, wherein the polyisoprene is obtained from a natural product.   The deodorizer according to claim 1 or 2, wherein the polyisoprene is a trans-type polyisoprene.   Deodorant containing gutta percha.   The deodorizer according to any one of claims 1 to 4, wherein the polyisoprene or gutta percha is obtained from a Eucommia plant.   The deodorizer according to any one of claims 1 to 5, wherein the polyisoprene or gutta percha is obtained from Tochu leaves.   The deodorizer according to any one of claims 1 to 4, wherein the polyisoprene or gutta percha is obtained from gutta percha.   The deodorizer according to any one of claims 1 to 7, wherein the polyisoprene or gutta percha is fibrous.   The deodorizer according to any one of claims 1 to 8, wherein the polyisoprene or gutta percha is obtained by extraction with an organic solvent.   The deodorizer according to any one of claims 1 to 9, which is in a liquid form.   The deodorizer according to any one of claims 1 to 9, which is in a solid form.   The deodorizer according to any one of claims 1 to 11, wherein polyisoprene or gutta percha is supported on a carrier.