JP2006296807A - Deodorant material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly functional deodorant material capable of effectively and safely deodorizing not only acid and alkaline odor but also neutral odor contained in a pet odor and odor caused by nursing care and added with functions other than the deodorization. <P>SOLUTION: This deodorant material is formed by adding organic acid to deodorant components consisting of plant extract to adjust its pH within the range of 4.5-5.4 and mixing cyclodextrin clathrate including natural aromatic substance. This constitution can deodorize not only the acid and alkaline odor but also the neutral odor by synergistic action among the deodorant component, organic acid and cyclodextrin clathrate. White-cedar leaf oil is used as the aromatic substance to exert not only a masking effect of the odor by the aroma but also a relaxation effect on persons and pets in a room, antibacterial effect and insect pest repellent effect. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a deodorizing material that can effectively and safely eliminate indoor odor that occurs when raising a pet indoors or when caring for an elderly or sick person.

  Due to the recent pet boom, the number of households that keep pets such as dogs and cats indoors is increasing, and with this, it is desired to eliminate pet odor drifting indoors. In addition, the arrival of an aging society has become a real problem, and it is desired to eliminate the care odor that occurs when caring for elderly and sick people as the number of care recipients increases.

  Here, various types of deodorizing materials have been proposed for deodorizing indoor odors (that is, indoor odors), and one of them is a plant extract, an organic acid or an alkali salt thereof, and a ketone. A deodorant material obtained by dispersing an acid in alcohol has been proposed (see, for example, Patent Document 1).

According to such a technique, it is possible to safely and efficiently deodorize acidic odors such as hydrogen sulfide and alkaline odors such as ammonia, which are the main causes of room odor, by simply spraying the deodorizing material.
Japanese Patent No. 3458808

  However, pet odors and nursing odors among indoor odors include neutral odors generated by aldehydes such as acetaldehyde and nonenal that causes aging odors in addition to acidic and alkaline odors. In the conventional deodorizing material described above, it is difficult to deodorize such a neutral odor.

  In addition, the conventional deodorizing material described above has a problem that it lacks functions other than the deodorizing function and lacks added value.

  Therefore, the main problem of the present invention is that not only acidic and alkaline odors but also neutral odors contained in pet odors and nursing odors can be effectively and safely deodorized, and functions other than deodorization are also provided. It is to provide an added high-performance deodorant material.

  According to the first aspect of the present invention, “a deodorizing component composed of a plant extract is added with an organic acid to adjust the pH to a range of 4.5 to 5.4, and a natural aromatic substance is included. It is a deodorizing material characterized by "mixing dextrin inclusion bodies".

  In this invention, the deodorant component comprising a plant extract mainly deodorizes acidic odors such as hydrogen sulfide and methyl mercaptan, and the organic acid mainly deodorizes alkaline odors such as ammonia. Since the organic acid is added so that the pH becomes weakly acidic at around 5, a strong deodorizing effect can be exerted against an alkaline odor such as ammonia that causes urine odor and sweat odor.

  And since the cyclodextrin clathrate in which a natural aromatic substance is included in these components is mixed, the volatilization of the aromatic substance during long-term storage of the deodorant can be suppressed. When a spray is applied, the aromatic substance is gradually released from the cyclodextrin inclusion body. For this reason, it is possible to mask the molecules of odors (for example, neutral odors) that could not be deodorized by the deodorant component or the organic acid by the fragrance substance released from cyclodextrin, and deodorize these odors. .

  Moreover, the cyclodextrin from which the aromatic substance has been released takes in water molecules therein, but when the odorous molecules come into contact with the cyclodextrin, the water molecules taken into the cyclodextrin are replaced with odorous molecules. That is, odor molecules are trapped in cyclodextrin and deodorized.

  The invention described in claim 2 is characterized in that in the deodorizing material described in claim 1, “the aromatic substance is hiba oil”.

  By using Hiba oil as an aromatic substance in this way, not only the odor masking effect due to the fragrance, but also the relaxing effect, antibacterial effect and pest repellent effect on humans and pets in the room can be given to the deodorant material. .

  In addition, the antibacterial effect of Hiba oil can prevent the generation of malodor due to spoilage, and the deodorizing effect can be maintained for a very long time in combination with the odor adsorption action of cyclodextrin.

  In addition, since the deodorizing material of this invention is comprised from the component derived from nature substantially, the safety | security with respect to a human or a pet is very high.

  According to the present invention, it is possible to deodorize not only acidic and alkaline odors but also neutral odors such as acetaldehyde and nonenal by the synergistic action of the deodorant component consisting of plant extract, organic acid and cyclodextrin inclusion body. It is possible to effectively deodorize room odors including pet odors and care odors.

  In addition, when Hiba oil is used as a natural fragrance, it can provide relaxing effects, antibacterial effects, and pest repellent effects on humans and pets in the room, as well as long-term deodorization. An effect can be imparted.

  Therefore, not only acidic and alkaline odors, but also neutral odors contained in pet odors and care odors can be effectively and safely deodorized, and a high-performance odor with functions other than deodorization added. Odor materials can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with specific examples.

  The deodorant material of the present invention is generally composed of a cyclodextrin inclusion body in which a deodorant component, an organic acid and an aromatic substance are included.

  The deodorant component is a naturally derived component composed of a plant extract. Examples of the raw material plant from which the plant extract serving as the deodorant component can be extracted include forsythia, holly mushrooms, giraffes, buffets, camellias, lilacs, oysters, Japanese oaks, porcupines, ferns and white-spotted ash.

  In addition, the plant extract serving as the deodorant component is extracted from each organ such as the leaf, flower, fruit, stem, root and bark of the raw material plant exemplified above, and the extraction method is hydrophilic. Known methods such as Soxhlet extraction using an organic solvent and steam distillation can be employed. In addition, the obtained plant extract can also be used in the form of aqueous solution, and can also be used in the form of a solid substance so that it may mention later.

  It is known that a plant extract extracted by such a method exhibits an excellent deodorizing effect especially against an acidic odor such as hydrogen sulfide.

  The organic acid is used to neutralize and deodorize alkaline odors such as ammonia and trimethylamine, which are difficult to deodorize with the deodorant component described above. Examples of the organic acid include citric acid, malic acid, adipic acid, fumaric acid, lactic acid, gluconic acid, maleic acid, and succinic acid, and at least one of them is used. Each of the organic acids listed here exists naturally and is also used as a food additive, so it is extremely safe for humans and pets.

  Here, the organic acid is added to the deodorant component so that the pH of the deodorizer becomes weakly acidic in the range of 4.5 to 5.4 (that is, around 5). By adjusting the pH of the deodorizing material to such a value, while maintaining the deodorizing effect of the acidic odor due to the deodorizing component, against alkaline odor such as ammonia that causes urine odor and sweat odor This is because a particularly strong deodorizing effect can be exhibited. That is, when the pH of the deodorizing material is 4 or lower, the deodorizing effect on the alkaline odor is excellent, but the deodorizing effect of the acidic odor by the deodorizing component may be hindered. On the contrary, when the pH of the deodorizing material becomes neutral or alkaline of 6 or more, the deodorizing effect of the alkaline odor due to the addition of the organic acid is not exhibited.

  When adjusting the pH of the deodorant to about 5 by adding an organic acid to the deodorant component, it is preferable to add a predetermined amount of a pH adjusting buffer such as triethanolamine. This is because by adding such a buffering agent, deterioration of the deodorant can be suppressed and long-term storage can be achieved.

  The cyclodextrin inclusion body is composed of a cyclodextrin and a natural fragrance substance included in the cyclodextrin.

  Cyclodextrins are carbohydrates in which a plurality of D-glucoses are linked in a cyclic manner, and are produced by allowing microbial enzymes to act on starches. This cyclodextrin has a cavity at the center of the molecule, and has a function of incorporating (ie, including) a compound into this cavity by physical attraction. This cyclodextrin is composed of α-cyclodextrin in which 6 D-glucoses are linked in a cyclic manner, β-cyclodextrin in which 7 D-glucoses are connected, and γ-cyclo in which 8 are connected in accordance with the size of the aromatic substance to be included. Dextrin and any of these derivatives are used.

  Natural aromatic substances are formed of at least one plant-derived component selected from tree essential oils such as hiba oil, cypress oil and eucalyptus oil, herbal extract components such as jasmine and lavender, and tea leaf extract components such as flavonoids. Thus, by using a plant-derived component as an aromatic substance, safety for humans and pets is extremely high.

  In addition, when Hiba oil containing a high percentage of natural hinokitiol is used as this fragrance, not only the odor masking effect by fragrance, but also the relaxing effect, antibacterial effect and pest repellent for humans and pets in the room It can give effects.

  When a cyclodextrin inclusion body is produced by including a fragrance substance in a cyclodextrin, first, the fragrance substance is added to a dispersion of a predetermined amount of cyclodextrin in water, or the cyclodextrin and the fragrance substance. Add water to the mixture and homogenize. These are dried by a known method such as spray drying, freeze drying, or vacuum drying to complete the cyclodextrin inclusion body.

  Here, the mixing ratio of the cyclodextrin inclusion body mixed with the deodorant is not particularly limited, but in the range of 0.5 to 100 parts by weight with respect to 1 part by weight of the plant extract (deodorant component) described above. Preferably there is. When the mixing ratio of the cyclodextrin clathrate is less than 0.5 parts by weight, the addition effect of the cyclodextrin clathrate does not appear, and conversely, when it exceeds 100 parts by weight, the addition effect is sufficient. However, this is because the viscosity of the deodorant increases and handling becomes difficult.

  Next, when producing the deodorizing material of the present invention, the pH is adjusted to around 5 by adding an organic acid and a buffering agent such as triethanolamine as necessary to the aqueous solution of the plant extract, that is, the deodorizing component. To do. And a deodorizing material is completed by mixing and disperse | distributing a predetermined amount cyclodextrin inclusion body to this.

  In addition, the usage form of the deodorizing material of this invention is not specifically limited, It can use in various forms according to a use, such as impregnation to a liquid agent, an aerosol formulation, a solid agent, and a support | carrier. Among these, it is preferable that the deodorizing material is in the form of a solid agent such as a tablet in the following points. That is, by making the deodorant into a solid agent such as a tablet, it is excellent in portability and storability, and can be stored for a long time, and when dissolved and sprayed in water, the number of tablets to be dissolved is adjusted. Only the user can adjust the deodorizing effect of the deodorant. In addition, when water of the deodorant is removed and a shaping material such as dextrin is added to form a tablet having a predetermined shape, the pH when the tablet is dissolved in water is 4.5 to 5. It is more preferable to add a carbonate such as sodium hydrogen carbonate or sodium carbonate within the range of 4. This is because by adding such a carbonate, when the tablet is dissolved in water, the carbonate and the organic acid react and foam, and the tablet can be quickly dissolved in water.

  According to the deodorizing material of the present invention, the deodorizing component comprising a plant extract mainly deodorizes acidic odors such as hydrogen sulfide and methyl mercaptan, and the organic acid mainly deodorizes alkaline odors such as ammonia. In particular, since the organic acid is added so that the pH of the deodorizing material becomes acidic at around 5, it exerts a strong deodorizing effect against alkaline odor such as ammonia that causes urine odor and sweat odor. be able to.

  And since the cyclodextrin clathrate in which a natural aromatic substance is included in these components is mixed, the volatilization of the aromatic substance during long-term storage of the deodorant can be suppressed. When a spray is applied, the aromatic substance is gradually released from the cyclodextrin inclusion body. For this reason, it is possible to mask the molecules of odors (for example, neutral odors) that could not be deodorized by the deodorant component or the organic acid by the fragrance substance released from cyclodextrin, and deodorize these odors. .

  Moreover, the cyclodextrin from which the aromatic substance has been released takes in water molecules therein, but when the odorous molecules come into contact with the cyclodextrin, the water molecules taken into the cyclodextrin are replaced with odorous molecules. That is, odor molecules are trapped in cyclodextrin and deodorized.

  Thus, in the deodorizing material of this invention, a room odor can be effectively deodorized by the synergistic effect | action of the deodorizing component which consists of a plant extract, an organic acid, and a cyclodextrin inclusion body.

  Furthermore, by using Hiba oil as an aromatic substance, not only the odor masking effect due to the fragrance, but also a relaxing effect, an antibacterial effect and a pest repellent effect on humans and pets in the room can be provided. In addition, the antibacterial effect of Hiba oil can prevent the generation of malodor due to spoilage, and the deodorizing effect can be maintained for a very long time in combination with the odor adsorption action of cyclodextrin.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to the examples.

[Preparation of deodorant]
A commercially available liquid deodorant (active ingredient content 30% by weight) containing an active ingredient composed of a plurality of kinds of plant extracts was prepared, and this was diluted 56 times with water to obtain a deodorant ingredient. . Subsequently, citric acid and triethanolamine were added to the deodorant component to adjust the pH of the solution to 5. And the cyclodextrin inclusion body which included hiba oil in the ratio of 2 weight part with respect to 1 weight part of plant extracts was mixed in the obtained solution, and these were fully stirred and deodorized material (Liquid) was obtained.

[Confirmation of effect]
(1) Deodorizing effect of ammonia 10 ml of a deodorizing material was put into a 1 liter glass bottle container, 1 ml of 0.3 mass% ammonia aqueous solution was injected, and after standing for 10 minutes, sensory evaluation was conducted by five skilled panelists. As a result, in all panelists, the evaluation according to the 6-step odor intensity display method of the malodor control method was 0 (no odor).

(2) Deodorizing effect of hydrogen sulfide 10 ml of deodorizing material is put into a 1 liter glass bottle container, 1 ml of 0.1% by mass hydrogen sulfide solution is injected, and after standing for 1 hour, sensory evaluation is conducted by five skilled panelists. It was. As a result, the evaluation of each panel according to the 6-step odor intensity display method of the malodor prevention method was 0 (no odor) or 1 (a odor that can finally be sensed), and the average value was 0.4.

(3) Deodorizing effect of nonenal 10 ml of deodorizing material was put into a 1 liter glass bottle container, 100 μl of 0.1% by mass of nonenal solution was injected, and after standing for 1 hour, sensory evaluation was conducted by five skilled panelists. As a result, the evaluation of each paneler according to the 6-step odor intensity display method of the malodor prevention method was 0 (no odor) or 1 (finally detectable odor), and the average value was 0.2.

(4) Insecticidal effect 2 ml of a deodorizing material was sprayed on the medium in which fungi and mites live, and immediately after spraying, the presence or absence of mites was observed with a loupe. Moreover, the said culture medium sprayed with the deodorizing material was exposed to the open air, and it was left to stand for 4 weeks, and the presence or absence of tick generation | occurrence | production was observed with the microscope. As a result, the ticks died immediately after spraying the deodorant, and no ticks were observed after standing for 4 weeks.

(5) Antibacterial effect A Staphylococcus aureus (MRSA strain) was added to a sensitive disc medium, and a measurement plate was prepared by dispensing and solidifying into an 8 ml petri dish. And the filter paper disk which made the deodorizing material adsorb | suck on this flat plate for a measurement was mounted, and culture | cultivated at 36 degreeC for 24 hours, Then, antibacterial activity was determined by the magnitude | size of the inhibition circle | round | yen. As a comparative example, a filter paper disk adsorbed with distilled water was prepared and subjected to the same test. As a result, formation of the inhibition circle was not recognized in the comparative example, but formation of the inhibition circle was recognized in the case of using the deodorant material of this example. Thereby, it turned out that the deodorizer of a present Example has an antibacterial effect with respect to resistant Staphylococcus aureus.

Claims (2)

  Add organic acid to deodorant component made of plant extract to adjust pH to the range of 4.5 to 5.4, and mix with cyclodextrin clathrate containing natural aromatic substance Deodorant material characterized by The deodorizing material according to claim 1, wherein the aromatic substance is hiba oil.