JPS6321060A - Production of deodorant - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] This invention relates to a method for producing a deodorant for purifying and deodorizing air.

[Foreground technology]

Generally, the sources of bad odors and strange odors are factory smoke and waste liquid, cigarettes, frozen fields, kitchen waste, etc., and there are a wide variety of types of bad odors and strange odors. In particular, in homes, rooms are often kept closed when air-conditioning equipment is in operation, so countermeasures against these foul odors have become a major problem.

There are four ways to eliminate these bad odors and strange odors:
There are two ways.

■ Sensory deodorization method: A method of masking bad odors and foreign odors using aromatic substances (fragrant essential oils, etc.).

■ Physical deodorization methods: Diluting and removing bad odors through ventilation and diffusion, adsorbing odors using silica gel or activated carbon, or enclosing odorous substances with clathrate compounds such as cyclodextrin. How to interact.

■ Chemical deodorization method: A method of chemically reacting (neutralization, addition, condensation, oxidation, etc.) with malodor and off-flavor components to make them odorless.

For example, direct combustion method or oxidation method using oxidizing agents such as ozone or potassium permanganate.

■ Biological deodorization method: A method that reduces and kills microorganisms that cause spoilage, prevents spoilage, and prevents the occurrence of bad odors.

Other methods include deodorizing using wood vinegar obtained by carbonizing wood.

The irritating deodorization method (2) is a method that is mainly practiced in ordinary households, and uses the scent of the deodorant itself to eliminate bad odors and foreign odors. However, aromatic substances have a limited ability to remove odorous substances, and it is difficult to maintain a balance between aromas and odors.Furthermore, people have different tastes in the aroma of deodorants, and sometimes find them unpleasant. It is difficult to say that it is a general deodorizing method. The physical method (2) is widely used, but in addition to the problems of requiring equipment and fluctuations in room temperature, the adsorption effect of bad odors and off-flavor components is not sustainable, and it may reach a saturated state. Ba,
There is a problem in that it releases odor components. On top of that,
Inclusion compounds such as those described above are generally expensive. Deodorization methods that utilize neutralization reactions with acids and alkalis have a limited scope for deodorization. In addition, in chemical deodorization method (2), it is extremely difficult to select substances that react effectively with a wide variety of malodorous components. Furthermore, it is not common because the chemicals used must be handled with care and the chemicals may deteriorate in the air. Furthermore, the biological deodorization method described in (■) is not suitable for use for the purpose of removing odors in the atmosphere, requires equipment, and has the disadvantages of slow onset of effects. The current situation is that each law has its advantages and disadvantages.

Therefore, the inventors devised a method for producing a deodorant that extracts the active ingredient from Pinaceae plants as a way to obtain a deodorant that itself is odorless and does not require large-scale equipment. 60-119951). However, since Pinaceae plants have unique aroma components, it has been thought necessary to perform extraction with hydrophobic organic solvents to remove them. Hydrophobic organic solvents are expensive and dangerous to handle. The problem was that it was accompanied by

[Purpose of the invention]

An object of the present invention is to provide a method for producing a deodorant that does not have the above-mentioned conventional problems.

[Disclosure of the invention]

In order to achieve the above object, the present invention provides
The gist of the present invention is a method for producing a deodorizing agent in which an effective deodorizing ingredient is obtained by extracting at least one of a leaf and a tree trunk using an extraction solvent that includes at least one of a hydrophilic organic solvent and water.

This will be explained in detail below.

The raw materials for this invention include plants of the Pinaceae family, namely, fir, Abies spp., Abies spp. The extraction method from plants including leaves and tree trunks (including bark and rhizomes) of the genus Pinus such as Japanese black pine and Japanese pine, as well as genus Hemlock and genus Tsuga, involves adding water or an alcohol such as ethanol or methanol to the raw material plant. A hydrophilic organic solvent such as a ketone such as methyl ethyl ketone or acetone is added, and the deodorizing component is thermally extracted using a Soxhlet extractor or the like. This extraction operation may be performed using a mixed solvent of these hydrophilic organic solvents and water. Extraction is usually
Heat extraction is performed. For example, when water is used as the extraction solvent, the temperature is 60 to 80°C, but the temperature is not limited thereto.

The extract thus obtained can be used as is or after removing the solvent. The method is not limited. For example, methods that are less susceptible to thermal denaturation, such as vacuum drying, hot air drying, and spray drying, are used. This is further diluted with water or ethanol to make a deodorant product.

The porous material may be impregnated with the extract before removing the solvent from the extract. This will increase the deodorizing effect. Porous materials include activated carbon, silica gel, theolite,
Examples include nonwoven fabrics and clay minerals such as montmorillonite. Those impregnated with porous materials are used as is.

Next, an explanation will be given based on an example.

(Example 1) 1 kg of black pine leaves (including small tricks) was heated in a warm bath using a mixed solvent of water and ethanol (volume ratio water:ethanol = 50:5).
0)6j! was added and hot extracted. The obtained extract was dried using a spray dryer to obtain a deodorant.

(Example 2) Grind 100g of dried red pine wood and add 200ml of acetone.
Reflux in J and then filter. The filtrate was vacuum dried to obtain a deodorant.

(Example 3) 100 g of hemlock leaves were diluted in 600 ml of water, and extracted while heating with a heater. The solvent was removed from the extract by vacuum drying to obtain a deodorant.

In order to examine the deodorizing effects of the deodorants obtained in Examples 1 to 3 above, the following tests were conducted. In other words, the first
Ammonia, hydrogen sulfide, and trimethylamine correspond to 5 on the 6-level odor intensity scale in the table.

Ethyl mercaptan and pyridine in a 200ml Erlenmeyer flask with a stopper, 12μ each! Add 1w of the above deodorant
t% aqueous solution was added in equal amounts. 10 panelists (
5 men and 1 woman) were asked to smell the inside of the flask.
The odor was evaluated based on the six levels of odor intensity shown in Table 1 below. The results are shown in Table 2. For comparison, the odor was also evaluated for products to which no deodorant was added.

As shown in Tables 1 and 2, the deodorants of Examples 1 to 3 were highly effective.

(Example 4) 100g of larch leaves were extracted with a mixed solvent of water:ethanol-50:50, impregnated with activated carbon, and dried with 80'' hot air to obtain a deodorizer. and suspended in a 2.5-inch acrylic box, and ammonia was added so that the odor concentration was 50 ppm.
When the odor concentration was tracked over time, the odor concentration became O in 30 minutes (Example 5) 5 kg of fir leaves were extracted with 3 ON of water, impregnated with 10 pupil of montmorillonite, and dried to form a deodorant. I got it. When we asked monitors (20 household housewives) to spray the obtained deodorizer over the kitchen waste in each household, 14 people found it odorless, and the remaining 6 people said the odor was almost unnoticeable. reported that it no longer became .

〔Effect of the invention〕

Since the method for producing a deodorant according to the present invention is configured as described above, it does not cause the above-mentioned conventional problems, and it is possible to easily obtain a deodorant that is itself odorless and highly effective.

In other words, this deodorant itself is odorless, so
Unlike conventional deodorants, it does not cause disgust or anger in people due to its own odor. In addition, since the raw material is a Pinaceae plant that is widely available in the world, it can be obtained at low cost and does not require large-scale equipment for deodorization. Moreover, it can deal with a wide range of bad odors such as ammonia, hydrogen sulfide, and amines, so it can effectively deal with everything from bad odors in factories to household odors, and even bad odors in toilets. Since it never becomes saturated, its lifespan is long.

Claims (2)

[Claims] (1) A method for producing a deodorant in which an active deodorizing ingredient is obtained by extracting at least one of the leaves and trunk of a Pinaceae plant using an extraction solvent consisting of at least one of a hydrophilic organic solvent and water. . (2) The method for producing a deodorant according to claim 1, wherein the solution obtained by the extraction operation is once impregnated into a porous substance and the solvent is removed to obtain the deodorizing active ingredient.