JP3924757B2 - Screening or evaluation method for deodorizing effect - Google Patents
Screening or evaluation method for deodorizing effect Download PDFInfo
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Description
本発明は、本発明は、被験物質のスクリーニング方法および被験物質の消臭効果を視覚的に評価する方法に関する。 The present invention relates to a test substance screening method and a method for visually evaluating the deodorizing effect of the test substance.
生活水準の向上に伴って、居室空間の臭気を除去する要望が高まっており、トイレ、キッチン、玄関、リビング等の様々な場所に消臭剤が使用されている。消臭剤の消臭効果については、現在、官能試験や、機器又は検知管を使用した定量試験が利用されている（例えば、特許文献1参照。）。 With the improvement of living standards, there is an increasing demand for removing odors in living rooms, and deodorants are used in various places such as toilets, kitchens, entrances, and living rooms. As for the deodorizing effect of the deodorant, a sensory test and a quantitative test using a device or a detector tube are currently used (see, for example, Patent Document 1).
しかしながら、そのような官能試験や定量試験では、被験物質の消臭効果を測定して結果を待つまでに時間がかかり、手間もかかる。 However, in such sensory tests and quantitative tests, it takes time and labor to measure the deodorizing effect of the test substance and wait for the result.
従って、被検物質の消臭効果を迅速かつ簡便に確認する方法が強く望まれている。
本発明の第１の目的は、被験物質が消臭効果を有するか否か短時間にしかも簡便にスクリーニングする方法を提供することである。また本発明の第２の目的は、被験物質が有する消臭効果を短時間にしかも簡便に評価するための方法を提供することである。 A first object of the present invention is to provide a method for simply screening in a short time whether or not a test substance has a deodorizing effect. The second object of the present invention is to provide a method for simply and easily evaluating the deodorizing effect of a test substance in a short time.
本発明は、下記の方法に関する。 The present invention relates to the following method.
１．有色気体雰囲気下に被験物質を配置し、当該有色気体雰囲気の色の消失を指標として当該被験物質の中から被検物質を選別する工程を有する、被検物質のスクリーニング方法。 1. A method for screening a test substance, comprising a step of arranging a test substance in a colored gas atmosphere and selecting the test substance from the test substance using the disappearance of the color of the colored gas atmosphere as an index.
２．被検物質の選別が同時に消臭物質を選別する方法となる、上記項１に記載するスクリーニング方法。 2. Item 2. The screening method according to Item 1, wherein screening of the test substance is a method of simultaneously selecting a deodorant substance.
３．有色気体が、窒素酸化物である上記項１または２に記載する方法。 3. Item 3. The method according to Item 1 or 2, wherein the colored gas is nitrogen oxides.
４．有色気体雰囲気下に被験物質を配置し、当該有色気体雰囲気中の色の変化を測定することを特徴とする、当該被験物質の消臭効果を視覚的に評価する方法。 4). A method for visually evaluating the deodorizing effect of a test substance, characterized in that the test substance is placed in a colored gas atmosphere and a change in color in the colored gas atmosphere is measured.
５．有色気体が、窒素酸化物である上記項４に記載する方法。 5. Item 5. The method according to Item 4, wherein the colored gas is nitrogen oxides.
６．有色気体及び有色気体吸着物質、並びに必要に応じて密閉容器を有する、上記項１または５に記載の方法に使用するためのキット。 6). 6. A kit for use in the method according to item 1 or 5 above, which has a colored gas and a colored gas adsorbing substance, and optionally a sealed container.
（１）スクリーニング方法
本発明は、被検物質のスクリーニング方法を提供する。当該スクリーニング方法は、数多ある被験物質の中から吸着効果を有する物質（吸着性物質）を選別するための方法であって、具体的には、有色気体雰囲気下に対象の被験物質を配置し、当該有色気体の色の消失を指標として当該被験物質の中から吸着性物質を選別することによって実施することができる。
(1) Screening method The present invention provides a screening method for a test substance. The screening method is a method for selecting a substance having an adsorbing effect (adsorbent substance) from a large number of test substances, and specifically, the target test substance is placed in a colored gas atmosphere. The method can be carried out by selecting an adsorbent substance from the test substance using the disappearance of the color of the colored gas as an index.
なお、有色気体の色の消失の有無は、目視によって行うこともできるが、例えば、容器の写真をデジタルカメラで撮影した後に色差計で測定するといった方法も可能である。また、まず目視によるスクリーニングによって数多の被験物質群の中から吸着性物質を篩い分けし、次いで、篩い分けられた被験物質を対象として前記の方法を用いたスクリーニングを行うことによって、当該被験物質の中から所望の吸着性物質を選別するなど、有色気体の色消失の検出方法を変えることにより、効率的で簡便で、しかも精度良く所望の吸着性物質を選別取得することが可能である。 In addition, although the presence or absence of the loss | disappearance of the color of colored gas can also be performed visually, the method of measuring with a color difference meter after taking the photograph of a container with a digital camera, for example is also possible. In addition, first, the adsorbent substance is screened from a large number of test substance groups by visual screening, and then the test substance is screened using the above method for the screened test substance. By changing the detection method of color disappearance of colored gas, such as selecting a desired adsorptive substance from the above, it is possible to select and acquire the desired adsorbent substance efficiently, simply and accurately.
当該スクリーニング方法で用いる有色気体は、取得対象の吸着性物質の種類によって異なるが、原則として、色を有する気体であればよく特に制限されない。有色の気体としては、例えば、二酸化窒素、フッ素、塩素、臭素、ヨウ素、二酸化塩素等を挙げることができる。また、タバコの煙、工場、焼却炉から排出される煙、自動車、バス、トラック等から排出される排気ガス等も有色気体に含めることができる。これらの中でも、二酸化窒素、塩素、二酸化塩素等が視覚的効果に優れているので、好適に用いられる有色気体である。さらに好ましくは二酸化窒素である。 The colored gas used in the screening method varies depending on the type of adsorptive substance to be acquired, but is not particularly limited as long as it is a gas having a color in principle. Examples of the colored gas include nitrogen dioxide, fluorine, chlorine, bromine, iodine, and chlorine dioxide. Further, tobacco smoke, smoke discharged from factories and incinerators, exhaust gas discharged from automobiles, buses, trucks, and the like can be included in the colored gas. Among these, nitrogen dioxide, chlorine, chlorine dioxide, and the like are excellent in visual effects, and are therefore preferably used colored gases. More preferred is nitrogen dioxide.
本発明で使用する有色の気体は、市販のものを使用することができるし、公知の方法により製造することもできる。例えば、二酸化窒素は、銅と硝酸を反応させることにより得ることができる。 The colored gas used in the present invention can be a commercially available gas, or can be produced by a known method. For example, nitrogen dioxide can be obtained by reacting copper and nitric acid.
また、有色気体が色と同時に臭気を有するものである場合、上記のスクリーニング方法を行うことにより、被検物質が選別できると同時に消臭物質（消臭効果を発揮する物質）をも選別することができる。ゆえに、この場合は、本発明のスクリーニング方法は、消臭物質のスクリーニング方法と言い換えることができる。 In addition, when the colored gas has an odor at the same time as the color, by performing the above screening method, the test substance can be selected and at the same time the deodorant substance (substance that exhibits the deodorizing effect) is also selected. Can do. Therefore, in this case, the screening method of the present invention can be rephrased as a screening method for deodorizing substances.
なお、色と同時に臭気を有する有色気体としては、二酸化窒素、フッ素、塩素、臭素、ヨウ素、二酸化塩素等を挙げることができ、その中でも、好ましくは二酸化窒素、塩素、二酸化塩素等、より好ましくは二酸化窒素等が好適に使用できる。 Examples of the colored gas having an odor at the same time as the color include nitrogen dioxide, fluorine, chlorine, bromine, iodine, chlorine dioxide, etc. Among them, preferably nitrogen dioxide, chlorine, chlorine dioxide and the like, more preferably Nitrogen dioxide or the like can be preferably used.
こうした本発明のスクリーニング方法は、有色気体の色の消失が視認できる条件下であれば、開放条件下で行っても、また閉鎖（密閉）条件下で行ってもよい。好ましくは閉鎖（密閉）条件下での実施である。閉鎖（密閉）条件下で行うほうが、有色気体雰囲気下における気体の流動がないため、色の消失過程をより正確且つ鮮明に観察することができ、また有色気体による臭いや着色等といった外部汚染を防止することができるからである。 Such a screening method of the present invention may be performed under an open condition or under a closed (sealed) condition as long as the disappearance of the color of the colored gas is visible. The operation is preferably performed under a closed (sealed) condition. When the process is performed under closed (sealed) conditions, there is no gas flow in a colored gas atmosphere, so the color disappearance process can be observed more accurately and clearly, and external contamination such as odors and coloring caused by colored gases can be observed. This is because it can be prevented.
閉鎖（密閉）条件下でスクリーニングを行う方法としては、簡便には密閉容器を使用する方法を挙げることができる。当該密閉容器は、内部に入れられた有色気体が容器の外に流出しないか又はほとんど流出しない程度に密閉性を有する容器であれば限定されない。さらに好ましくは、有色気体が密閉容器内部の表面に付着もしくは吸着しない素材のものであり、また容器内部が有色気体の付着／吸着を防止するための表面処理が施されたものであってもよい。さらに本発明では、被検物質の消臭効果を視覚的に（視覚を通じて）確認する必要があるので、密閉容器は、一部に透明若しくは半透明の窓を有するものであるか、または全てが透明又は半透明であることが必要である。 As a method for screening under a closed (sealed) condition, a method of using a sealed container can be mentioned for convenience. The said airtight container will not be limited if it is a container which has airtightness to the extent that the colored gas put in the inside does not flow out of the container or hardly flows out. More preferably, the colored gas is a material that does not adhere to or adsorb on the surface inside the sealed container, and the inside of the container may have been subjected to a surface treatment for preventing the colored gas from adhering / adsorbing. . Furthermore, in the present invention, since it is necessary to visually (through vision) confirm the deodorizing effect of the test substance, the sealed container has a transparent or translucent window in part or all of It must be transparent or translucent.
また、有色気体を鮮明に観察できるように、容器の少なくとも一面を着色したり、少なくとも一面に有色のものを貼り付けたりすることも可能である。 In addition, at least one surface of the container can be colored or a colored object can be attached to at least one surface so that the colored gas can be clearly observed.
当該容器は有色気体及び有色気体吸着物質を出し入れすることができるようになっていることが必要であるが、その大きさや形状等は限定されない。かかる大きさや形状は、中に配置する商品形態を有する有色気体吸着物質の大きさや使用する有色気体の濃度等に応じて適宜選択することができる。例えば、箱状（立方体状、直方体状等）、円柱状、三角錐状、球状などの形状が例示できるが、これらに限定されない。容器の材質も、上記限りにおいて限定されず、ガラス、アクリル樹脂、プラスチック、ポリエチレン樹脂等が例示できる。また、上記容器の内表面をフッ素加工したり、フッ素加工した透明又は半透明シートで上記容器の内表面を覆ったりすることもできる。さらに、本発明において容器にはビニール袋、例えば、テトラーバック等の袋類も含み、その袋類が有色気体を密閉することができれば使用することができる。 Although the said container needs to be able to take in and out colored gas and colored gas adsorption substance, the magnitude | size, shape, etc. are not limited. Such a size and shape can be appropriately selected according to the size of the colored gas adsorbing substance having a product form to be placed therein, the concentration of the colored gas to be used, and the like. For example, shapes such as a box shape (cubic shape, rectangular parallelepiped shape, etc.), a columnar shape, a triangular pyramid shape, and a spherical shape can be exemplified, but the shape is not limited thereto. The material of the container is not limited as long as it is described above, and examples thereof include glass, acrylic resin, plastic, and polyethylene resin. Further, the inner surface of the container may be subjected to fluorine processing, or the inner surface of the container may be covered with a fluorine-processed transparent or translucent sheet. Furthermore, in the present invention, the container includes a plastic bag, for example, a bag such as a tetra bag, and can be used if the bag can seal the colored gas.
密閉容器を用いて本発明スクリーニングを行う場合、まず、有色気体を密閉容器に封入して充填する。有色気体の封入／充填は、シリンジ等の道具を用いて行ってもよいし、当該気体を収容している容器から直接充填してもよい。次いで、当該容器内に被検物質を配置する。但し、密閉容器に有色気体と被検物質を配置する順序は上記のものに限定されず、予め被検物質を配置した密閉容器に有色気体を封入してもよい。 When performing screening of the present invention using a sealed container, first, a colored gas is sealed in a sealed container and filled. Filling / filling the colored gas may be performed using a tool such as a syringe, or may be directly filled from a container containing the gas. Next, a test substance is placed in the container. However, the order in which the colored gas and the test substance are arranged in the sealed container is not limited to the above, and the colored gas may be sealed in the sealed container in which the test substance is arranged in advance.
当該物質を上記の容器内に配置することにより、容器内の有色気体が当該物質に吸着され、経時的に容器内の色が消失していく。この経時的な色の変化（色の消失変化）を確認することにより、当該被検物質の消臭効果を迅速かつ簡便にイメージとして捉えることができる。 By disposing the substance in the container, the colored gas in the container is adsorbed by the substance, and the color in the container disappears with time. By confirming this color change with time (color disappearance change), the deodorizing effect of the test substance can be quickly and easily captured as an image.
また、当該スクリーニング方法も、前述するように閉鎖（密閉）条件下で行うことが好ましい。具体的には、有色気体を封入／充填した密閉容器内に被検物質を配置した場合と、有色気体を封入／充填した密閉容器内に被検物質を配置しない場合（対照）とで、容器内の色の経時的変化の様子を対比的に示す。これによって、弱い消臭効果を有する被検物質であってもその効果を確認することができる。 The screening method is also preferably performed under closed (sealed) conditions as described above. Specifically, when the test substance is placed in a sealed container filled / filled with colored gas, and when the test substance is not placed in a sealed container filled / filled with colored gas (control), the container The state of the change in the color of the inside with time is shown in contrast. Thereby, even if it is a test substance which has a weak deodorizing effect, the effect can be confirmed.
２以上の容器に気体を充填する場合は、各容器において気体の量又は濃度が同等になるようにするのが好ましい。 When two or more containers are filled with gas, it is preferable that the amount or concentration of the gas is equal in each container.
なお、上記スクリーニング方法を行う際に、密閉容器に充填する有色気体の量又は濃度、被検物質の大きさや形状等は限定されず、気体の種類、対象商品の大きさ、密閉容器の大きさ等に応じて適宜選択することができる。 In addition, when performing the above screening method, the amount or concentration of the colored gas filled in the sealed container, the size and shape of the test substance, etc. are not limited, and the type of gas, the size of the target product, the size of the sealed container It can be appropriately selected according to the like.
（２）消臭効果の評価方法
本発明はまた、被験物質の消臭効果を視覚的に評価する方法を提供するものである。当該評価方法は、具体的には有色気体雰囲気下に被験物質を配置し、当該有色気体雰囲気中の色変化を測定することによって実施することができる。この際に有色気体雰囲気中の色が消失する場合は被験物質に消臭効果があると、また有色気体雰囲気中の色が消失しない場合は被験物質に消臭効果がないと判断することができる。
(2) Deodorizing effect evaluation method The present invention also provides a method for visually evaluating the deodorizing effect of a test substance. Specifically, the evaluation method can be carried out by placing a test substance in a colored gas atmosphere and measuring a color change in the colored gas atmosphere. At this time, if the color in the colored gas atmosphere disappears, it can be determined that the test substance has a deodorizing effect, and if the color in the colored gas atmosphere does not disappear, the test substance has no deodorizing effect. .
本発明の方法で使用される有色気体は、色と同時に臭気を有する有色気体であり、かかるものとしては二酸化窒素、塩素、臭素、ヨウ素、二酸化塩素等を挙げることができる。その中でも、二酸化窒素、塩素、二酸化塩素当が好ましく、二酸化窒素が特に好ましい。 The colored gas used in the method of the present invention is a colored gas having an odor simultaneously with the color, and examples thereof include nitrogen dioxide, chlorine, bromine, iodine, and chlorine dioxide. Of these, nitrogen dioxide, chlorine and chlorine dioxide are preferred, and nitrogen dioxide is particularly preferred.
本発明において、有色気体の色の変化（消失の有無）は、目視によって測定することもできるが、例えば、容器の写真をデジタルカメラで撮影した後に色差計で測定するといった方法も可能である。また、まず目視による測定によって被験物質の消臭効果の有無をおおまかに判断し、必要に応じて、更に前記の方法による測定によって、当該被験物質の消臭効果をより精度良く評価することも可能である。 In the present invention, the color change (presence / absence of disappearance) of the colored gas can be measured by visual observation. For example, a method of measuring a photograph of a container with a digital camera and then measuring with a color difference meter is also possible. It is also possible to roughly determine the presence or absence of the deodorizing effect of the test substance by visual measurement, and if necessary, further accurately evaluate the deodorizing effect of the test substance by measuring using the above method. It is.
本発明の評価方法は、上記スクリーニング方法の項で説明した密閉容器などを用いて、閉鎖（密閉）条件下で行うことが好ましい。なお、かかる具体的な密閉容器の種類や具体的な方法については、前述するスクリーニング方法の記載を参酌することができる。 The evaluation method of the present invention is preferably performed under a closed (sealed) condition using the sealed container described in the section of the screening method. The description of the screening method described above can be referred to for the specific types and specific methods of the sealed container.
（３）キット
本発明において使用する、密閉容器、有色気体及び被検物質は、キットとして使用することができる。これらをキットとすることにより、持ち運びも容易となり、様々な場所で迅速かつ簡便に上記の本発明の方法を実施することができる。
(3) Kit The sealed container, colored gas and test substance used in the present invention can be used as a kit. By using these as a kit, carrying becomes easy, and the above-described method of the present invention can be carried out quickly and easily at various places.
本発明のスクリーニング方法によれば、多くの被験物質の中から吸着効果又は／及び消臭効果を有する物質を視覚によって、迅速かつ簡便に選別することができる。さらに、本発明の評価方法によれば、被験物質の消臭効果を視覚によって、迅速かつ簡便に評価することができる。 According to the screening method of the present invention, a substance having an adsorption effect and / or a deodorizing effect can be quickly and easily selected from many test substances visually. Furthermore, according to the evaluation method of the present invention, the deodorizing effect of the test substance can be quickly and easily evaluated visually.
以下、実施例を示し、本発明の特徴を一層明確にする。本発明はこれら実施例に限定されるものではない。 Hereinafter, examples will be shown to further clarify the features of the present invention. The present invention is not limited to these examples.
実施例１
300mlの三角フラスコ中に銅板（50mm×25mm×1mm；日本テストパネル大阪株式会社製JISH3100）を入れ、そこに硝酸を50ml加えた（試薬特級 和光純薬社製 Cat. No. 141-0136）。ただちに10Lのテドラーバッグ（GLサイエンス社製）に上記の三角フラスコを入れ、クリップ（GLサイエンス社製）で密閉した。
Example 1
A copper plate (50 mm × 25 mm × 1 mm; JISH3100 manufactured by Nippon Test Panel Osaka Co., Ltd.) was placed in a 300 ml Erlenmeyer flask, and 50 ml of nitric acid was added thereto (reagent special grade Wako Pure Chemicals Cat. No. 141-0136). Immediately, the Erlenmeyer flask was placed in a 10 L Tedlar bag (GL Science) and sealed with a clip (GL Science).
テドラーバッグ中に二酸化窒素（赤褐色）が充満するのを待ち（約10分程度）、ガラスシリンジ（200ml）を用いて、テドラーバッグ中の二酸化窒素をアクリルボックス中に500ml注入し、蓋を占めて密閉した。同様のアクリル容器をもう一つ用意した。 Wait for nitrogen dioxide (reddish brown) to fill in the Tedlar bag (about 10 minutes), use a glass syringe (200 ml) to inject 500 ml of nitrogen dioxide in the Tedlar bag into the acrylic box, occupy the lid and seal . Another similar acrylic container was prepared.
片方のアクリル容器には、被検物質としてとして、素焼状に焼成した粘土にペーパースラッジを付着させたもの（特願2003-342699：「炭力（小林製薬株式会社製）」）を配置した。経時的に観察した容器内の色の変化を図1〜3に示す。図1は被検物質を添加して0分後、図2は被検物質を添加して15分後、図3は被検物質を添加して30分後、図4は被検物質を添加して60分後の状態を示す。 In one acrylic container, as a test substance, a clay obtained by attaching paper sludge to clay fired in an unglazed form (Japanese Patent Application 2003-342699: “charcoal power (manufactured by Kobayashi Pharmaceutical Co., Ltd.)”) was placed. Changes in the color of the container observed over time are shown in FIGS. Figure 1 shows 0 minutes after adding the test substance, Figure 2 shows 15 minutes after adding the test substance, Figure 3 shows 30 minutes after adding the test substance, and Figure 4 shows the test substance added. The state after 60 minutes.
なお、窒素酸化物（No.10）の気体検知管（ガステック社製）を用いて消臭試験を行った結果、被検物質を配置する前はどちらの容器内も10000ppmであった。被検物質を配置して1時間後は、被検物質を配置していない容器中は9000ppm、被検物質を配置した容器中は200ppmであった。このことから、被検物質により消臭効果を有することが確認された。 As a result of performing a deodorization test using a nitrogen oxide (No. 10) gas detector tube (manufactured by Gastec Corporation), it was 10000 ppm in both containers before placing the test substance. One hour after placing the test substance, it was 9000 ppm in the container in which the test substance was not placed, and 200 ppm in the container in which the test substance was placed. From this, it was confirmed that the test substance has a deodorizing effect.
これらの図より、被検物質を配置した容器内の色が経時的に消失する様子が、明瞭に確認できた。従って、上記の方法によれば、当該被験物質の消臭効果の評価に利用することができ、これによって数多ある被験物質の中から吸着性を有する所望の物質を選別することができると考えられる。すなわち、上記方法は、吸着性物質のスクリーニング方法として好適に用いることができる。 From these figures, it was clearly confirmed that the color in the container in which the test substance was arranged disappeared with time. Therefore, according to the above method, it can be used for evaluation of the deodorizing effect of the test substance, and thus it is considered that a desired substance having adsorptivity can be selected from a large number of test substances. It is done. That is, the above method can be suitably used as a screening method for adsorptive substances.
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| JP2004009917A JP3924757B2 (en) | 2004-01-16 | 2004-01-16 | Screening or evaluation method for deodorizing effect |
| PCT/JP2005/000387 WO2005078417A1 (en) | 2004-01-16 | 2005-01-14 | Method of screening deodorizing effect or method of evaluation thereof |
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