JPH0744949B2 - Deodorants - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing a deodorant obtained from a plant extract component.

<Prior Art> Today, malodorous events are extremely complicated, and the sources thereof vary from factories, restaurants, sewage treatment plants to households such as refrigerators, toilets, and even in vehicles. Most of the generated odors have a bad odor due to the mixture of various minor components. Conventionally, as a means of removing offensive odors and malodors, a method of physically adsorbing odorous components to a porous surface to remove them, a method of removing them by adsorption or reaction by a chemical bond, or a substance having a stronger fragrance than the malodorous component, There are known methods for eliminating the odor. However, the physical adsorption method has a drawback that the adsorbent itself reaches a saturated state in a short time, and the chemical adsorption method has a large selectivity for malodorous substances, and an actual malodorous event composed of complex odors. There is a drawback that it is not suitable for. The masking method is disadvantageous in that the fragrance component that masks offensive odor events does not always meet the user's taste or if the odor of the masking agent is strong, it causes discomfort.

<Problems to be Solved by the Invention> The present invention has been invented to solve the above-mentioned problems, the odor of the deodorant component itself is weak, and has an effect on various odorous substances. In particular, it is intended to provide a deodorant having a remarkable effect on ammonia, trimethylamine and methyl mercaptan.

<Means for Solving the Problems> That is, the present invention is a plant of the family Asteraceae, more specifically, the organism or dried matter of leaves or petals of a hydrangea plant, is extracted using a polar solvent, the resulting extract is effective It is a deodorant as a component.

Examples of the polar solvent include water, lower alcohols, hydrophilic solvents such as ketones, but preferably a polar solvent is a mixture, for example, extraction using a solvent in which water and ethanol are mixed in a ratio of 1: 4. Give. If necessary, the extract is subjected to a centrifuge to remove insolubles and also removes the solvent to obtain an effective deodorant component.

The Hydrangeaceae plants mentioned here include the genus Hydrangea. Among these, hydrangea species that are relatively easily available include hydrangea, koa hydrangea, gaku hydrangea, benegaku, yama hydrangea, and tama hydrangea.

As a method for obtaining the deodorant substance, water is removed from the above raw material in an oven set at 60 ° C., and the raw material is dried and then powdered using a mixer. The above solvent is added at a ratio of about 20 ml to 1 g of this powder, followed by hot extraction at 60 ° C. for 1 hour and then room temperature extraction for 15 to 24 hours. Filtered,
The same solvent is further added to the residue, and the mixture is subjected to warm extraction at 60 ° C. for 1 hour, then separated and filtered, and the filtrate is combined with the previously separated extract and concentrated by a rotary evaporator or the like. After separating the solid matter and the dissolved matter by centrifuging the concentrated liquid, only the dissolved matter is applied to a volumetric flask,
A deodorant solution is obtained after diluting to a certain concentration with water. Further, this deodorant solution is dried under reduced pressure to obtain a deodorant solid product, which is used for actual deodorization.

<Action> Since this solid substance has very little odor itself, it does not cause discomfort unlike conventional masking agents, and has an effect of removing various malodors, especially ammonia,
Its effect is superior to trimethylamine and methyl mercaptan. Further, this raw material is also inexpensively and easily available, and the operation for obtaining the deodorant component is simple. As deodorant mechanism, it is presumed that neutralization with polyphenols, amino acids, chlorophyll, etc. in the multi-component mixed system of plant extract components, decomposition, redox, complex formation, clathrate action, etc. are performed in combination. Has been done. Hereinafter, the present invention will be described in more detail with reference to examples.

<Example 1> 6 g of dried leaf powder of hydrangea and 150 ml of a mixed solvent of water: ethanol = 1: 4 were placed in an Erlenmeyer flask, which was subjected to a hot water bath at 60 ° C for 1 hour and then extracted at room temperature for 15 hours. . The extract was separated by suction filtration, 150 ml of the same solvent was added to the residue again, and extraction was carried out at 60 ° C. for 1 hour. By suction filtration and combining the filtrate with the above extract, after concentrating using a rotary evaporator and applying a centrifuge to separate the solid matter,
The liquid content was diluted with water to 100 ml in a volumetric flask to obtain a deodorant solution. About 15 ml of this is dried under reduced pressure to remove solid deodorant
Got 58 mg.

<Example 2> 2 g of the dried hydrangea petal powder was treated in the same manner as in Example 1 to obtain 100 ml of deodorant solution. 5 ml of this was dried under reduced pressure to obtain about 37 mg of a solid deodorant.

<Example 3> The deodorizing effect of ammonia was measured on the deodorizing solutions obtained in Examples 1 and 2.

Test method 5 ml of the deodorant liquid was dried and solidified, and about 2 g of ammonia gas was put in a glass bottle having a capacity of 160 ml and sealed. A sample containing no solid deodorant was also prepared as a blank. This was stored in a thermostat set at 20 ° C, and after 5 hours of treatment, the amount of gas remaining in each bottle was measured using a gas chromatograph to reduce the amount of gas in the bottle containing the deodorant (a ) And the amount of gas in the blank bottle, that is, the amount adsorbed on the glass wall (b), were obtained, and the amount of gas deodorized by the deodorant itself was calculated from ab. From this calculation result, the gas adsorption amount of the deodorant converted per 1 g of the dried product was determined and shown in FIG. Here, for comparison, the gas adsorption amounts of other plant components obtained by the same extraction method are also shown.

<Example 4> With respect to the deodorizing solutions obtained in Examples 1 and 2, the deodorizing effect of trimethylamine was measured.

Test method The same treatment and measurement as in Example 1 were performed using about 2 g of trimethylamine gas. The results were calculated in the same manner, and the gas adsorption amount of the deodorant converted to 1 g of the dried product is shown in FIG.
For comparison, the gas adsorption amounts of other plant components obtained by the same extraction method are also shown.

<Example 5> With respect to the deodorant solution obtained in Example 2, the deodorizing effect of methyl mercaptan was measured.

Test method The same treatment and measurement as in Example 1 were performed using about 2 g of methyl mercaptan gas. The results were calculated in the same manner, and the gas adsorption amount of the deodorant converted to 1 g of the dried product is shown in FIG.
For comparison, the gas adsorption amounts of other plant components obtained by the same extraction method are also shown.

<Effect of the Invention> As described above, the deodorant obtained by the present invention is inexpensive and easy to obtain the raw material, the manufacturing method is simple, and the effect is large. Since the deodorant itself has an extremely low odor, it can exert its effect in various fields without causing discomfort. Further, there have been inventions relating to deodorants utilizing plant components, for example, those utilizing extracts from plants such as Camellia, Pinaceae, etc., but it is possible to exceed those effects from the graph of the drawing. It can be said that it is an effective and practical deodorant that is extremely effective.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 3 show the dried product 5 hours after the start of measurement.
It is a graph which shows the quantity of the odorous gas adsorbed per 1g by a bar graph.

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Claims (1)

[Claims] 1. A deodorant comprising as an active ingredient an extract obtained by extracting from an organism or a dried product of leaves or petals of the genus Hydrangea of the family Asteraceae.