JPH0124508B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention heat-extracts components with a deodorizing effect that are present in fresh or dried leaves of plants of the Camellia family and/or Lauraceae family using ethanol, and decolorizes and purifies the extracted extract with an adsorbent such as activated carbon. The present invention relates to a deodorizer containing a yellow treatment liquid as an active ingredient, or a deodorizer made of activated carbon, acid clay, or diatomaceous earth, which is the residue after removing the decolorized and purified treatment liquid. The present applicant previously made an invention in Japanese Patent Publication No. 58-18098 in collaboration with Tanabe Seiyaku Co., Ltd., but the deodorant according to this earlier invention contains a colored solid having a dark green to dark brown color as an active ingredient. Therefore, it is extremely colored, and its solubility in water is poor, so it has the drawback of being limited in its use depending on the deodorizing substance. The present invention aims to provide a deodorant that does not compensate for this drawback, can be used over a wide range of areas, has good solubility in water, has little coloration, and has a great deodorizing effect against acidic and alkaline malodorous substances. The purpose is to Therefore, the present inventor believes that the objective can be achieved by removing the coloring-causing components and the chlorophyll, resin, and essential oil components that are considered to be water-insoluble components contained in the deodorant of the prior invention. As a result of intensive research, we have found that activated carbon, acid clay, diatomaceous earth, etc. have a high removal effect, are easy to operate, and are efficient. The present invention was completed by discovering that it has an excellent deodorizing effect on acidic and alkaline malodorous substances, and the first invention of the present invention is a plant of the Camellia family and/or a plant of the Lauraceae family. 1 part of fresh or dried leaves is subjected to heat extraction for 2 to 10 hours using 4 to 10 parts of ethanol, and the resulting extract is decolorized using activated carbon, acid clay, diatomaceous earth, etc. The second invention is a deodorizing agent containing the obtained liquid treated product as an active ingredient, and the second invention is an active deodorizing agent containing a crude deodorizing active ingredient obtained as a residue after performing the above decolorization treatment and separating the liquid treated product. The present invention provides a deodorizing agent that uses carbon, acid clay, and diatomaceous earth for deodorizing purposes. Activated carbon itself has traditionally been used as a deodorizing agent because it has an adsorption effect. However, the adsorption effect of activated carbon is selective for deodorizing malodorous components, and the deodorizing effect is higher at low temperatures than at high temperatures, and it is effective against the malodors of hydrogen sulfide and mercaptan, which are typical acidic malodorous components. Although it has a high adsorption capacity, it has the disadvantage that its deodorizing effect is poor for alkaline malodor components such as ammonia and trimethylamine, especially ammonia. The deodorizing effect is also reduced in the presence of water. When the residual activated carbon, acid clay, or diatomaceous earth containing the crude deodorizing active ingredient from which the deodorizing active ingredient of the present invention is separated is used as a deodorizing agent, the deodorization of the acidic malodorous components such as the original activated carbon etc. It also has a deodorizing effect on alkaline malodorous components, and has a remarkable wide-ranging deodorizing effect, and even in the presence of water and at high temperatures, it has a higher deodorizing effect than conventional activated carbon itself. . The decolorization treatment method of the present invention uses, for example, 4 to 10 parts of ethanol to 1 part of dried green tea leaf powder, and
Thermal extraction is carried out for ~10 hours and the resulting extract is concentrated to obtain a crude extract solution containing about 30% extract. Ethanol for this 30% extract solution,
A solution of water alone or a mixture thereof, and activated carbon according to food additive standards at 0.3 to 1 part of extract.
It is preferable to carry out this by adding 3.0 parts and stirring for about 10 to 60 minutes at room temperature or under heating. After the decolorization process, the activated carbon is separated and the liquid is collected, and the liquid containing this active ingredient (hereinafter referred to as deodorizing stock solution) and the separated crude extract are collected. ) is obtained. The same applies to acid clay and diatomaceous earth. (A) When using the deodorizing stock solution obtained as above, (a) Dilute with lower alcohol, hydrous lower alcohol, polyhydric alcohol, hydrous polyhydric alcohol, etc., and use the obtained deodorizing liquid to generate a bad odor. Spray in place. (b) Add directly to food-related products and mix thoroughly. (c) Add directly to cosmetics. (d) Used as a deodorizing ingredient in deodorizers and deodorizers. (e) When deodorizing the bad odor of pharmaceuticals, etc., form the powder into granules or tablets using a conventional method and seal them separately in a package or storage container. (B) Or when using a deodorant powder, (a) As a refrigerator and moisture absorbent, mold it into an appropriate shape and use it alone or as part of coconut shell activated carbon. (b) Contain directly in sanitary products, shoe pads, and air conditioning products. (c) Add directly to the factory wastewater treatment tank. (d) It is blended as a component of a smoke agent used in smoking. (C) Usage examples of the deodorizing liquid and deodorant powder of the present invention are shown below, but the usage examples are not limited thereto. All percentages are by weight. Usage example 1 (Deodorizing spray) Ethanol 50% Dichlorodifluoromethane 48 Deodorant liquid of Example 5 2 100% Usage example 2 (PET deodorizing liquid) Ethanol 10% Fragrance 0.01 Deodorant liquid of Example 5 2 Water Residual 100.0% Usage example 3 (Candy) Sugar 50% Starch syrup 34 Organic acid 1 Flavor 0.2 Deodorant liquid of Example 5 0.5 Water Remaining 100.0% Usage example 4 (Drink) Sugar 12% Honey 1 Drink base 0.3 Flavor 0.1 Deodorant liquid of Example 5 1.0 Water Balance 100.0% Usage example 5 (tablet) Lactose 65 parts Dextrin 10 Talc 5 Deodorizing stock solution of Example 2 20 Water Appropriate amount 100 parts Usage example 6 (For refrigerated cars) Coconut shell activated carbon 70 % Deodorizing granules of Example 6 30 100% Usage example 7 (shoe padding) Activated carbon 80% Deodorant powder of Example 4 20 100% According to the inventor's research, the deodorizing effect of the present invention is The deodorizing effect is achieved through the combined effects of addition, neutralization reaction, and clathration of a large number of components including flavanols, flavonols, amino acids, organic acids, saccharides, and other polymeric compounds. As mentioned above, the deodorizing powder using residual activated carbon also has the adsorption effect of the original activated carbon. Next, the present invention will be explained with reference to Examples. Example 1 (Extraction of active ingredients) 100 g of dried tea leaf powder and 900 g of ethanol were placed in an extractor and refluxed for 4 hours. The raw material residue was removed from the extract and the liquid was concentrated to obtain 100 g of an extract solution containing 30% hot extract. Example 2 (Decolorization treatment of active ingredients) 35 g of the crude 30% extract solution obtained in Example 1, 30 g of ethanol, 40 g of purified water, and 15 g of activated carbon were added to a container, and after heating at 70 to 80 ° C. for 30 minutes, Stirring was continued for 30 minutes. After that, it was filtered by suction, the residue was washed with fresh ethanol, the residue was separated, and 5% of the active ingredient was removed.
A yellow transparent liquid (deodorizing stock solution) containing the following was obtained. A 1000 times alcoholic solution of this deodorizing stock solution shows maximum absorption at 275±2 mμ in the ultraviolet absorption spectrum. Example 3 The same operation as in Example 2 was carried out by adding 30 g of the crude 30% extract solution obtained in Example 1, 70 g of ethanol, and 12 g of activated carbon to a container to obtain a solution containing 6% of the active ingredient.
A yellow transparent liquid (deodorizing stock solution) containing the following was obtained. Example 4 The residue separated in Example 2 was dried to obtain 20 g of activated carbon powder (deodorant powder) containing about 5% of the crude extract as an active ingredient. Example 5 50 parts of the liquid (deodorizing stock solution) obtained in Example 2 was diluted with propylene glycol, glycerin, ethanol or a mixture thereof to obtain a liquid deodorant used for various purposes. Example 6 For 10 parts of the deodorant powder obtained in Example 4, 5 to 10 parts of a 10% aqueous ethanol solution of polyvinylpyrrolidone was added.
After kneading the mixture using a granulator, a granular deodorant was obtained by molding the mixture using a granulator. Example 7 (Test on deodorizing effect of the deodorant of the present invention) The deodorizing effect of the deodorant liquid obtained in Example 5 was measured. (1) Malodorous components (a) 30% trimethylamine aqueous solution (b) Benzyl mercaptan (2) Test method (a) Trimethylamine aqueous solution 36 mg (b) Place 12 mg of benzyl mercaptan in each container, add 1 g of deodorizing liquid, and seal the container. Mix well inside. Then, use a syringe to remove the air from each sealed container (a) and (b) and inject it into a gas chromatograph. A blank test was conducted in the same manner, and the removal rate was determined by setting the area value of the chromatograph as 100. (a) Trimethylamine removal rate: 80.3% (b) Benzyl mercaptan removal rate: 73.1% The measurement conditions for the gas chromatograph are as follows.

【table】

[Table] Example 8 (Comparative test on deodorizing the deodorizing powder of the present invention and conventional activated carbon) Using the deodorizing powder obtained in Example 4, the deodorizing ability of the activated carbon used in the decolorization process was evaluated. compared. Malodorous components - Ammonia 28% aqueous solution test method Fill ammonia (2 g), deodorizing powder (5 g) and 10 ml of 0.5N HCl into each container. Connect each container and introduce air at 100cm ³ /min.
Ammonia gas is adsorbed by the deodorizing powder part, and unadsorbed ammonia gas is absorbed by the 0.5N HCl test solution which is the detection part. Back titration was performed with 0.5N NaOH using HCl in the detection part as an indicator and methyl orange, and the weight of ammonia was calculated at each time point. A test was similarly conducted using activated carbon (5 g). The removal rate was determined by setting the blank test as 100. The results are shown in Table 1.

[Table] The results in Table 1 show that the deodorizing powder of the present invention is significantly superior in ammonia removal rate to conventional activated carbon alone.

Claims (1)

[Scope of Claims] 1. Heat extraction is performed for 2 to 10 hours using 4 to 10 parts of ethanol to 1 part of fresh or dried leaves of plants of the Camellia family and/or Lauraceae family, and the extract is extracted with activated carbon. A deodorizing agent containing as an active ingredient a treated liquid portion obtained by decolorizing using acid clay, diatomaceous earth, or the like. 2 Heat extraction is performed for 2 to 10 hours using 4 to 10 parts of ethanol to 1 part of fresh or dried leaves of plants of the Camellia family and/or Lauraceae family, and the extract is extracted using activated carbon, acid clay, or diatomaceous earth. A deodorizer made of activated carbon, acid clay, or diatomaceous earth, which is the residue obtained by decolorizing the treated product and separating the liquid part.