JP2000325453A - Deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exhibit a good deodorization effect on a variety of odors, prevent a hue from changing, keep precipitation from occurring and prohibit a deodorizing capability from deteriorating even if left along for many hours. SOLUTION: A deodorant is produced by adding one or more kinds of organic acids selected from the group consisting of L-tartaric acid, maleic acid, succinic acid, malic acid, citric acid and lactic acid and alkali salts thereof, glyoxylic acid, and one or more kinds of wetting agents selected from the group consisting of glycerol, propylene glycol and ethylene glycol to a component effective in deodorizing that is composed of a plant-derived extract.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a deodorant. More specifically, the invention of this application relates to a deodorant effective against various odors.

[0002]

2. Description of the Related Art In general, odors generated as foul odors, off-flavors, etc. include sewage in toilets in homes, kitchens in kitchens,
There are various types of odors, such as odors generated from cigarettes and pets, and factory smoke. In particular, odors in homes cause discomfort, irritation, headaches and the like.

On the other hand, when the air conditioner is operated, the interior of the house is often kept in a closed room (sealed state), and in recent years, the house is airtight (sealed) from the viewpoint of energy saving and the like.
As odors do not discharge outside and easily accumulate in houses, measures to eliminate odors have become a major problem. Conventionally, the following four methods have been known as such odor eliminating methods.

(1) Sensory deodorization method: a method of masking the odor with the fragrance of an aromatic substance (for example, odor oil, etc.) and deodorizing it (2) Physical deodorization method: removing the odor by ventilation and diffusion Dilution,
A method of removing odors by removing it, adsorbing odors with silica gel, activated carbon, or other adsorbents, or including odorants with cyclodextrin or other inclusion compounds (3) Chemical deodorization method: odorous substances With a chemical reaction (eg, neutralization, addition, condensation, oxidation, etc.) to deodorize. For example, direct fire combustion method, oxidation method using ozone, potassium permanganate, or other oxidizing agents (4) Biological deodorization method: Kills microorganisms that cause putrefaction to prevent putrefaction and prevents odor generation how to

[0005]

However, the sensory deodorization method (1) is a method mainly used in ordinary households. However, there is a limit to the odor removing ability by an aromatic substance. It is difficult to expect a satisfactory deodorant effect, it is difficult to deodorize by balancing the odor and odor of aromatic substances, and the odor of aromatic substances is preferred by some people and sometimes disliked by others There is a problem that it is not a general deodorizing method that gives a pleasant feeling to everyone and has an excellent deodorizing effect.

The physical deodorization method (2) is a method that has been practiced for a long time, but requires special equipment for ventilation and diffusion, and the room temperature fluctuates due to ventilation and diffusion. Further, it is difficult to say that the odor absorbing effect of the adsorbent or the odor containing effect of the inclusion compound is satisfactory, and there is a problem that the odor component is released when the saturated state is reached.

In the chemical deodorization method (3), it is extremely difficult to select a drug that effectively reacts with an odorant composed of various chemical components, and further, care must be taken in handling the drug used. Or the chemicals may be degraded in the air, which is not a general deodorant method. The biological deodorization method (4) is not suitable for the purpose of deodorizing odors in a general living atmosphere,
In addition, special equipment is required for implementation,
There was a problem that the onset of the deodorizing effect was also slow.

[0008] In order to solve the above-mentioned problems, it is extracted from natural plants which are odorless and safe, and have the advantage of not requiring a large-scale special device for deodorization. It has been considered to utilize the deodorant active ingredient composed of the extracted extract as a deodorant, and there is great expectation in the future. However, deodorant active ingredients composed of extracts extracted from natural plants have a limited deodorant ability as they are, and when left in a liquid state for a long time, the hue changes or precipitates are formed. And the deodorizing power is deteriorated, and the stability over time is poor.

The invention of this application has been made in view of the circumstances described above, and has a problem in the case where an effective deodorant component comprising an extract extracted from the natural plant is used as a deodorant. It has an excellent deodorizing effect against various odors, and even when left in a liquid state for a long time, the hue changes, precipitates are formed, and the deodorizing power is deteriorated. It is an object of the present invention to provide a deodorant which is excellent in stability over time without causing odor.

[0010]

Means for Solving the Problems The invention of this application has been made to solve the above-mentioned problems, and the first invention is directed to a deodorizing active ingredient comprising an extract extracted from a plant. , L-tartaric acid, maleic acid, succinic acid, malic acid,
One or more organic acids or alkali salts thereof selected from the group consisting of citric acid and lactic acid, and glyoxylic acid, and one or more wetting agents selected from the group consisting of glycerin, propylene glycol and ethylene glycol, Provided is a deodorant characterized by being added.

[0011] The second invention provides the above deodorant wherein the pH is adjusted to 3 to 5.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The invention of this application has the features as described above, and embodiments thereof will be described below. In the deodorant of the invention of the present application, various plants can be used as the plant for extracting the deodorant active ingredient, and are not particularly limited. Forsythia and the like are preferable, and other Oleaceae plants and Pinaceae plants can also be widely used.

When the deodorizing active ingredient is extracted from the plant, the extract extracted from each organ such as leaf, petiole, fruit, stem, root, bark, etc. of the plant is used as the deodorizing active ingredient. However, the extraction method is not particularly limited, and for example, one of hydrophilic organic solvents such as alcohols such as ethanol and methanol, and ketones such as methyl ethyl ketone and acetone.
More than one species may be added to each organ of the above plant, and the deodorant active ingredient may be heat-extracted using a Soxhlet extractor or the like. If necessary, prior to the extraction, the odor component of the plant may be eluted and removed using another hydrophilic organic solvent such as hexane or petroleum ether. Further, the removal of the odor component of the plant and the extraction of the deodorant active component may be performed simultaneously by the steam distillation method.

When an additive is added to the deodorant active ingredient comprising the extract thus extracted from the plant to obtain a deodorant, for example, the solvent is distilled off or concentrated from the extract. After making it a liquid or solid, it may be diluted with a desired solvent, and then an additive may be added to obtain a deodorant. As an additive to be added to the deodorizing active ingredient, one or more organic acids selected from the group consisting of L-tartaric acid, maleic acid, succinic acid, malic acid, citric acid and lactic acid, or sodium salts and potassium salts thereof And the like, glyoxylic acid, and one or more wetting agents selected from the group consisting of glycerin, propylene glycol and ethylene glycol.

As described above, the reason why the above-mentioned specific additive was added to the deodorant active ingredient consisting of the extract extracted from the plant is as follows. By adding the organic acid or an alkali salt thereof, the deodorizing power against nitrogen-based odors such as trimethylamine and other amines, which are putrid odors of fish and meat, and ammonia, which is toilet odor generated from human waste in toilets, is enhanced. can do. The amount of the organic acid or the alkali salt thereof is not particularly limited, but the extract 1 extracted from a plant, which is an effective deodorant ingredient, is used.
The amount is preferably 0.1 to 250 parts by weight (when a plurality of organic acids or alkali salts thereof are used, the total amount thereof) based on parts by weight.

Addition of glyoxylic acid enhances the deodorizing power of sulfur odor such as hydrogen sulfide, which is putrefactive odor of eggs and milk, methyl mercaptan, which is putrid odor of vegetables and garbage, and other mercaptans. be able to.
In addition, when the deodorant is left in a liquid state and left for a long time, a change in hue, formation of a precipitate, deterioration of the deodorant, and the like can be suppressed, and a deodorant excellent in stability over time can be obtained.
The amount of glyoxylic acid to be added is not particularly limited, but may be 0.1 to 1 part by weight of the extract extracted from the plant.
It is preferably from 1 to 500 parts by weight.

By adding the above-mentioned wetting agent, the uniformity of the deodorant is maintained, and the antiseptic effect is exhibited. The amount of the wetting agent is not particularly limited, but may be 10 to 10 parts by weight based on 1 part by weight of the extract extracted from the plant.
It is preferably 00 parts by weight. When the pH is adjusted to 3 to 5 by adding an alkaline solution such as sodium hydroxide or potassium hydroxide or a solution having a buffering action to the deodorant thus obtained, the deodorant is obtained. Can further enhance the deodorizing effect.

There is no particular limitation on the form of use of the deodorant according to the invention of this application, but it can be used in the form of a liquid or spray, or used as a porous carrier such as activated carbon, silica gel or zeolite. It may be appropriately selected and determined according to the purpose, use, etc., such as impregnating and supporting, molding into powders, tablets, and granules for use.

The invention of this application is not limited to the above embodiments, but includes detailed specifications such as types of plants, types of additives, blending of deodorants, and the like. May be appropriately selected and determined according to the conditions. Examples will be shown below, and the invention of this application will be described in more detail.

[0020]

EXAMPLES (Examples 1 to 4) Using Forsythia, 5
The extract obtained by performing extraction for 4 hours with water at 0 ° C. (or 3 hours with water at 60 ° C.) is concentrated to dryness with a rotary evaporator (or freeze dryer) to obtain a solid extract. Obtained. To the obtained extract, water, an alkali salt of an organic acid, glyoxylic acid and a wetting agent (glycerin) are added and mixed so as to have a composition shown in Table 1 below, and sodium hydroxide is added to the obtained aqueous solution. The pH of the aqueous solution was adjusted to a predetermined value shown in Table 1 below to obtain a deodorant.

[0021]

[Table 1]

Comparative Example 1 A deodorant was obtained in the same manner as in Example 1, except that gluoxylic acid was not added. (Comparative Example 2) A deodorant was obtained in the same manner as in Example 2 except that sodium L-tartrate was not added. (Comparative Example 3) A deodorant was obtained in the same manner as in Example 3, except that sodium citrate and glyoxylic acid were not added.

The deodorants obtained in Examples 1 to 4 and Comparative Examples 1 to 3 were subjected to a deodorizing power test as follows. Each of the deodorants obtained in Examples 1 to 4 and Comparative Examples 1 to 3 was diluted 10-fold with water, and 5 ml was placed in a 1-L Erlenmeyer flask. Further, ammonia gas, trimethylamine gas, sulfide Hydrogen gas and methyl mercaptan gas were charged so as to have the concentrations shown in Table 2 below, and sealed. Next, after 30 minutes, the residual gas concentration of each of the test specimens was measured using a gas detection tube, and the deodorizing rate was calculated by the following equation.

[0024]

(Equation 1)

[0025]

[Table 2]

The calculation results of the deodorization rate are as shown in Table 3.

[0027]

[Table 3]

As shown in Table 3, the deodorants according to Examples 1 to 4 contained 90% or more of ammonia, 80% or more of trimethylamine, 70% or more of hydrogen sulfide, and 60% of methyl mercaptan. % Deodorization rate is achieved. In contrast, Comparative Examples 1 to 3
The deodorant according to Example 1 is inferior in deodorizing power as compared with the deodorants according to Examples 1 to 4.

That is, any of the deodorant according to Comparative Example 1 to which glyoxylic acid was not added, the deodorant according to Comparative Example 2 to which no alkali salt of an organic acid was added, and the alkali salt of glyoxylic acid and an organic acid. All the deodorants according to Comparative Example 3 to which no is added were reduced in the deodorizing rate for the odors of ammonia, trimethylamine, hydrogen sulfide and methyl mercaptan, and in particular, for the deodorant for sulfur odors such as hydrogen sulfide and methyl mercaptan. The rate has dropped considerably.

Further, when the states of the deodorants according to the examples and the comparative examples were observed, no change in the hue of the liquid or the formation of a precipitate was observed for any of the deodorants according to the examples 1-4. The aging stability was excellent. On the other hand, with respect to the deodorants according to Comparative Examples 1 to 3, there were changes in the hue and the like of the liquid. Thus, it can be seen that the deodorant according to the present invention lacks any of the three types of additives, resulting in a decrease in deodorant power and stability over time. Example 5 A predetermined amount of the deodorant prepared in Example 1 was impregnated and supported on a porous carrier (zeolite) to obtain an adsorbent deodorant. In addition, for comparison, a zeolite alone not impregnated with a deodorant as a blank test body,
This was prepared as Comparative Example 4.

The deodorant obtained in Example 5 and the blank specimen of Comparative Example 4 were subjected to a deodorizing power test as follows. 5 g of the deodorant obtained in Example 5 and the blank specimen of Comparative Example 4 were each placed in a 1-L Erlenmeyer flask, and furthermore, ammonia gas, trimethylamine gas, hydrogen sulfide gas, and methyl mercaptan gas were added to the containers. It was put so as to have the concentration shown in Table 2 and sealed. Next, after 30 minutes, the residual gas concentration of each of these specimens was measured using a gas detection tube, and the deodorization rate was calculated by the above-described equation.

The calculation results of the deodorization rate are as shown in Table 4.

[0033]

[Table 4]

As shown in Table 4, the deodorant according to Example 5 was 9% for ammonia and trimethylamine.
A deodorization rate of 0% or more and a deodorization rate of hydrogen sulfide and methyl mercaptan of 60% or more are achieved. On the other hand, the blank test piece according to Comparative Example 4 is inferior in deodorizing power to the deodorant according to Example 5. In particular, hardly any performance is observed for sulfur odors such as hydrogen sulfide and methyl mercaptan.

That is, in the case of a porous carrier made of zeolite as an example, the porous carrier, which originally has no deodorizing performance, is impregnated with and supported by a deodorant. It can be seen that the removal performance was given to.

[0036]

As described in detail above, the deodorant of the invention of the present application exhibits an excellent deodorant effect against various odors, and has a hue even when left in a liquid state for a long time. No change, no precipitate is formed, and the deodorizing power is not deteriorated, and the stability with time is excellent.

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Claims (2)

[Claims] 1. A deodorizing active ingredient comprising an extract extracted from a plant, wherein at least one organic acid selected from the group consisting of L-tartaric acid, maleic acid, succinic acid, malic acid, citric acid and lactic acid. Alternatively, a deodorant obtained by adding an alkali salt thereof, glyoxylic acid, and one or more wetting agents selected from the group consisting of glycerin, propylene glycol and ethylene glycol. 2. The deodorant according to claim 1, wherein the pH is adjusted to 3 to 5.