Solid deodorant composition containing wheat germ extract and method for producing the same

Abstract

The present invention relates to a solid deodorant composition comprising wheat germ extract and a method for preparing the same. The composition exhibits an excellent removal rate for odor-causing components and provides a stable deodorizing effect for a long period of time due to its excellent persistence.

Description

Technology Field

[0001] The present invention relates to a solid deodorant composition comprising wheat germ extract and a method for manufacturing the same. Background Technology

[0003] With the recent spread of the well-being trend, there is a growing demand for sustainable deodorization technologies that go beyond simply removing odors and are harmless to the human body.

[0004] In particular, unpleasant odors from daily life in enclosed spaces such as homes, offices, and vehicles can cause headaches or discomfort and can also be a cause of emotional instability.

[0005] Accordingly, various types of deodorizers have been developed to effectively remove odors and create a pleasant environment.

[0006] Spray-type deodorizers, which were primarily used in the early days, had the advantage of providing an immediate deodorizing effect, but most relied on an odor masking method that simply covered up bad odors with fragrances. As a result, the odor-causing substances were not fundamentally removed, leading to a short deodorizing effect and frequent problems where the bad odor would return after a while.

[0007] Furthermore, safety concerns have been continuously raised that fine synthetic chemicals sprayed into the air could cause respiratory diseases or be harmful to the human body.

[0008] Liquid and solid deodorizers were introduced to address these problems.

[0009] Among these, gel-type solid deodorizers were difficult to trust completely in terms of safety because they primarily used synthetic polymer gelling agents and artificial deodorizing ingredients. In addition, due to limitations in the manufacturing process, the deodorizing ingredients inside the gel were not evenly dispersed and clumped together locally, resulting in problems such as localized deodorizing efficacy degradation and non-uniformity of efficacy over time.

[0010] In particular, despite active research being conducted on eco-friendly deodorizers utilizing plant-derived ingredients, there were many cases where the extracts failed to fully demonstrate their inherent deodorizing efficacy due to the inherent instability of plant extracts and limitations in the manufacturing process.

[0011] For example, a significant number of deodorizing active ingredients contained in plant extracts are sensitive to heat, making them prone to denaturation or destruction during typical high-temperature extraction.

[0012] In addition, simply mixing ingredients makes it difficult to stably capture the active ingredients within the gel, making it difficult to expect a strong and continuous deodorizing effect. The problem to be solved

[0014] The inventors recognize the problems of the prior art described above and intend to provide a deodorizer that is safe and exhibits a powerful deodorizing effect for a long time, using an extract that is harmless to the human body as the main component.

[0015] The present invention relates to a composition for a sustained-release solid gel type deodorizer comprising 10% by weight of wheat germ extract, 3% by weight of malt extract, 3% by weight of soybean extract, 3% by weight of glycine, 10% by weight of gellan gum, and 3% by weight of ethanol.

[0016] The present invention relates to a composition for a sustained-release deodorizer, wherein the wheat germ extract is prepared by a method comprising the following steps:

[0017] a1) Step of grinding wheat germ;

[0018] a2) A step of obtaining an extract by immersing the ground wheat germ in a 20-30% (w / w) ethanol aqueous solution at 35℃ for 18 hours;

[0019] a3) A step of removing impurities by centrifuging the above extract at 2,000 to 3,000 rpm;

[0020] a4) A step of filtering the centrifuged extract through a ceramic filter with a pore size of 0.5 μm; and

[0021] a5) A step of concentrating the above-mentioned filtered extract under reduced pressure.

[0022] The present invention relates to a composition for a sustained-release deodorizer, wherein the composition is prepared by a method comprising the following steps:

[0023] b1) A step of preparing a gellan gum solution by dissolving gellan gum in hot water at 70°C;

[0024] b2) A step of preparing a deodorizing ingredient mixture by mixing wheat germ extract, malt extract, soybean extract, glycine, ethanol, and purified water;

[0025] b3) a step of cooling the gellan gum solution to 45°C, and then slowly adding the deodorizing component mixture while stirring to form a stable emulsion; and

[0026] b4) A step of curing the above emulsion so that it solidifies at room temperature. means of solving the problem

[0028] The following describes this in detail. All combinations of the various elements disclosed in this invention fall within the scope of this invention. Furthermore, the scope of this invention should not be considered limited by the following detailed description.

[0029] Furthermore, unless otherwise defined in this specification, all terms used herein should be understood to have the same meaning as generally understood by those skilled in the art to which the present invention pertains.

[0030] In addition, singular expressions include plural expressions unless they are interpreted as being distinct from the context.

[0031] In this specification, terms such as "first," "second," etc., may be used to distinguish or describe one component from another, but the components should not be interpreted restrictively by said terms. For example, within the scope of the present invention, a first component may be named as a second component or vice versa.

[0032] In addition, “degrees” combined with numbers in this specification refers to degrees Celsius. o Representing C), " o It can be used interchangeably with "C" (for example, "100 degrees" is "100 o It is used with the same meaning as "C").

[0034] The present invention provides a composition for a sustained-release solid gel type deodorizer comprising 10% by weight of wheat germ extract, 3% by weight of malt extract, 3% by weight of soybean extract, 3% by weight of glycine, 10% by weight of gellan gum, and 3% by weight of ethanol.

[0035] The wheat germ extract used in the present invention is an extract obtained by isolating only the germ from the seeds of wheat (Triticum aestivum).

[0036] The above wheat germ is a part that accounts for about 2-3% of the total weight of the wheat kernel and contains concentrated nutrients necessary for the germination of wheat. In particular, it contains abundant protein, essential fatty acids, vitamin E, B vitamins (B1, B2, B6), phenolic acid compounds such as ferulic acid, and flavonoid compounds.

[0037] If the content of the above wheat germ extract is used at less than 5% by weight relative to the total weight of the composition, the deodorizing effect is negligible, and if it exceeds 15% by weight, it is undesirable as it may impair the stability of the composition without an additional increase in deodorizing efficacy.

[0038] In the present invention, the wheat germ extract can be purchased from a specialized retailer or manufactured directly for use.

[0039] In the present invention, "extract" refers to a product obtained by extraction using a suitable extraction solvent, and said extract includes the extract itself and all formulations of extracts that can be formed using the extract, such as an extract obtained by extraction, a diluted or concentrated extract, a dried product obtained by drying the extract, a modified or purified product thereof, a fraction thereof, or a mixture thereof.

[0040] The extract of the present invention may be prepared and used in the form of a dried powder after extraction, but is not limited thereto.

[0041] In the present invention, the extract may be prepared using extraction methods commonly used in the art. For example, methods such as hot water extraction, hot water extraction, cold maceration extraction, reflux cooling extraction, ultrasonic extraction, and high-temperature pressurized extraction may be used.

[0042] In preparing the extract of the present invention, the extraction solvent may be water; lower alcohols having 1 to 4 carbon atoms, such as methanol, ethanol, propyl alcohol, butyl alcohol; polyalcohols, such as glycerin, butylene glycol, propylene glycol; hydrocarbon solvents, such as chloroform, methyl acetate, ethyl acetate, benzene, hexane, diethyl ether, petroleum ether, dichloromethane; or a mixture thereof, but is not limited thereto.

[0043] According to an embodiment of the present invention, the wheat germ extract may be prepared by a method comprising the following steps:

[0044] a1) Step of grinding wheat germ;

[0045] a2) A step of obtaining an extract by immersing the ground wheat germ in a 20-30% (w / w) ethanol aqueous solution at 35℃ for 18 hours;

[0046] a3) A step of removing impurities by centrifuging the above extract at 2,000 to 3,000 rpm;

[0047] a4) A step of filtering the centrifuged extract through a ceramic filter with a pore size of 0.5 μm; and

[0048] a5) A step of concentrating the above-mentioned filtered extract under reduced pressure.

[0049] In the present invention, the above step a1 is a step for maximizing the efficiency of the next step, the extraction process, by increasing the surface area of ​​the wheat germ.

[0050] When wheat germ is ground to finely sized particles through the above step a1, the surface area in contact with the solvent is significantly increased. This facilitates the extraction solvent's easy access to deodorizing active substances (e.g., ferulic acid, flavonoids, etc.) present within the wheat germ, thereby shortening the extraction time and increasing the extraction yield.

[0051] The above grinding method may use a roller mill, a hammer mill, or an ultrafine grinder.

[0052] According to an embodiment of the present invention, it may be preferable to adjust the size of the ground particles to within 1 mm in consideration of extraction efficiency, but is not limited thereto.

[0053] In the present invention, step a2 is a step of selectively extracting a deodorizing active ingredient from crushed wheat germ.

[0054] By immersing the wheat germ ground through the above step a2 in a low-concentration aqueous ethanol solution of 20-30% (w / w) at a low temperature of 35℃ for 18 hours, an extract with excellent efficacy that is difficult to obtain with conventional high-temperature extraction methods is prepared.

[0055] Deodorizing active substances contained in wheat germ, such as ferulic acid and flavonoids, are susceptible to heat, so there is a high risk that the components will be denatured or destroyed during high-temperature extraction. Therefore, the present invention limits the extraction temperature to a low temperature of 35°C to minimize the destruction of active ingredients, while simultaneously suppressing the extraction of unnecessary proteins or lipids to maximize the efficacy of the extract. If the extraction temperature is below 30°C, the extraction efficiency of the active ingredients is significantly reduced, making it difficult to expect a sufficient deodorizing effect; if it exceeds 40°C, the risk of the active ingredients being denatured or destroyed by heat increases, which is undesirable.

[0056] In addition, by using a 20~30% (w / w) aqueous ethanol solution, fat-soluble components that are difficult to extract with water alone are dissolved, and the extraction of polar components is prevented by an excessively high ethanol concentration, thereby efficiently extracting only the active ingredients related to deodorization.

[0057] If the above ethanol concentration is less than 20%, the extraction efficiency of fat-soluble active ingredients may decrease, and if it exceeds 30%, unnecessary ingredients may be excessively extracted, which may impair the purity and stability of the composition.

[0058] In addition, the soaking time is set to 18 hours to ensure that the active ingredients are sufficiently extracted, while preventing spoilage caused by unnecessary ingredients or the proliferation of microorganisms.

[0059] If the above immersion time is less than 12 hours, the active ingredient may not be sufficiently extracted, and if it exceeds 24 hours, stability problems such as discoloration of the extract or microbial growth may occur, which is undesirable.

[0060] In the present invention, step a3 is a step that effectively removes solid impurities contained in the extract to increase the purity and stability of the extract.

[0061] The extract obtained by immersing the above-mentioned crushed wheat germ in an aqueous ethanol solution may contain insoluble solid impurities, such as fine wheat germ residue, proteins, and lipids, in addition to the deodorizing active ingredient. These impurities may cause turbidity in the final product, thereby degrading its aesthetic quality, and may form precipitates during long-term storage, potentially leading to stability issues.

[0062] Therefore, the present invention effectively separates fine impurities and precipitates floating inside the extract by performing centrifugation at a speed of 2,000 to 3,000 rpm.

[0063] If the above centrifugal separation speed is less than 2,000 rpm, the separation of impurities is not sufficiently performed, and the turbidity of the extract may increase; if it exceeds 3,000 rpm, energy efficiency decreases and the process time becomes longer, making it uneconomical.

[0064] In the present invention, step a4 is a step of filtering the centrifuged extract through a ceramic filter with a pore size of 0.5 μm to maximize the purity of the extract and remove microorganisms.

[0065] Conventional deodorizer manufacturing processes primarily used paper or non-woven filters. However, these filters have uneven pores, making it difficult to completely remove fine impurities and microorganisms, and clogging frequently occurred during the filtration process.

[0066] To solve these problems, the present invention uses a ceramic filter with a specific pore size (0.5 μm).

[0067] The ceramic filter described above has a uniform and fine pore structure, so it effectively filters out fine impurities remaining in the extract, thereby increasing the transparency of the extract.

[0068] In addition, considering that the size of microorganisms (e.g., bacteria) is generally 1 μm or larger, this pore size is very effective in physically blocking microorganisms and maintaining the sterile state of the extract.

[0069] If the pore size of the ceramic filter is less than 0.2 μm, the filtration speed is significantly slowed down, which lowers the efficiency of the entire process, and if it exceeds 1 μm, the removal effect of fine impurities and microorganisms is negligible and is undesirable.

[0070] In the present invention, step a5 is a step of concentrating the filtered extract under reduced pressure to remove moisture and increase the content of the active ingredient.

[0071] The extract obtained after step a4 still contains a high proportion of water and ethanol. If the extract in this state is used as is in the final composition, the concentration of the deodorizing active substance is low, resulting in minimal effect, and the ethanol component volatilizes, which can impair the stability of the gel.

[0072] Therefore, the present invention effectively removes moisture and ethanol at low temperatures by lowering the boiling point of the extract through a reduced-pressure concentration process.

[0073] The above vacuum concentration process has the advantage of preventing heat-sensitive deodorizing active ingredients from being destroyed by exposure to high temperatures, while also increasing the concentration of the extract to a desired level.

[0074] The malt extract used in the present invention is an extract obtained by grinding and purifying malt obtained by germinating a grain such as barley (Hordeum vulgare).

[0075] The above malt is rich in various enzymes and amino acids produced during the germination process of grains. In particular, enzymes such as amylase and peptide components present in malt have excellent ability to decompose or adsorb specific odor molecules, and these components assist in the chemical neutralization action of wheat germ extract, thereby inducing an increase in deodorizing effect.

[0076] If the content of the above malt extract is used at less than 1% by weight relative to the total weight of the composition, the synergistic effect is negligible, and if it exceeds 5% by weight, the characteristic malt scent may affect the smell of the composition or cause a change in viscosity, which may impair the stability of the composition, so it is not desirable.

[0077] In the present invention, the malt extract can be purchased from a specialized retailer or manufactured directly for use.

[0078] The soybean extract used in the present invention is an extract obtained from the seeds of the soybean (Glycine max).

[0079] The aforementioned soybeans are rich in various bioactive substances, such as saponins and isoflavones, in addition to protein, carbohydrates, and fats. These components possess excellent antibacterial and antioxidant effects, inhibit the growth of odor-causing bacteria, and assist in deodorization. Furthermore, they enhance deodorizing power by adsorbing specific odor molecules and contribute to increasing the longevity of the composition's effects.

[0080] If the content of the above soybean extract is used at less than 1% by weight relative to the total weight of the composition, it is difficult to expect sufficient antibacterial and deodorizing effects, and if it exceeds 5% by weight, it is undesirable as it may affect the color or transparency of the composition or cause a change in viscosity.

[0081] In the present invention, the soybean extract can be purchased from a specialized retailer or manufactured directly for use.

[0082] In the present invention, glycine is an amino acid with the simplest structure and serves as a deodorizing component that effectively neutralizes odor molecules.

[0083] The above glycine has both an amine group (-NH2) and a carboxyl group (-COOH) within its molecule, so it exerts a neutralizing effect against both acidic odors (e.g., sweat, vinegar) and basic odors (e.g., ammonia). This amphoteric characteristic provides a wider range of deodorizing effects than general deodorizing ingredients that react only to specific odors, and can create a synergistic effect by complementing the deodorizing effects of wheat germ, malt, and soybean extracts.

[0084] If the content of the above glycine is used at less than 1% by weight relative to the total weight of the composition, it is difficult to expect a sufficient deodorizing aid effect, and if it exceeds 5% by weight, it is undesirable as it may affect the viscosity or stability of the composition.

[0085] In the present invention, the glycine can be purchased and used from a specialized retailer.

[0086] In the present invention, gellan gum is a natural polysaccharide gelling agent used to form the composition into a solid gel type.

[0087] The gellan gum mentioned above is a type of water-soluble dietary fiber obtained through microbial fermentation, and provides excellent gelling ability and transparency even in small amounts. By stably capturing moisture and deodorizing components within the composition in a three-dimensional network structure, it controls the evaporation rate and allows the deodorizing components to be released consistently.

[0088] If the content of the gellan gum is less than 5% by weight, the strength of the gel may be weakened, making the formulation unstable, and if it exceeds 15% by weight, the gel may become excessively hard, which may hinder the release of deodorizing ingredients or make stirring during the manufacturing process difficult.

[0089] In the present invention, the ethanol is used as a solvent and an auxiliary agent in the composition.

[0090] In the present invention, the ethanol serves to uniformly disperse non-polar active ingredients, such as wheat germ extract, within the gellan gum gel, and a small amount of ethanol provides a volatile deodorizing effect against initial malodorous substances and helps maintain the consistency by controlling the drying speed of the composition.

[0091] If the content of the above ethanol is less than 1 weight%, these auxiliary effects are negligible, and if it exceeds 5 weight%, the rate of water evaporation from the gel increases, which can significantly shorten the duration of the composition.

[0092] The composition according to the present invention has a sustained-release solid gel type formulation and is designed to stably release deodorizing components over a long period of time, going beyond maintaining a simple solid state.

[0093] Deodorizing active ingredients such as wheat germ, malt, and soybean extracts are uniformly and stably captured within the three-dimensional network structure formed by gellan gum, and this structure effectively prevents the deodorizing ingredients from evaporating or being denatured all at once by the external environment.

[0094] According to an embodiment of the present invention, the sustained-release solid gel type deodorant composition can be prepared by a method comprising the following steps:

[0095] b1) A step of preparing a gellan gum solution by dissolving gellan gum in hot water at 70°C;

[0096] b2) A step of preparing a deodorizing ingredient mixture by mixing wheat germ extract, malt extract, soybean extract, glycine, ethanol, and purified water;

[0097] b3) a step of cooling the gellan gum solution to 45°C, and then slowly adding the deodorizing component mixture while stirring to form a stable emulsion; and

[0098] b4) A step of curing the above emulsion so that it solidifies at room temperature.

[0099] In the present invention, step b1 is a step of preparing a gellan gum solution that serves as the basis for a gel matrix capable of capturing deodorizing components.

[0100] In the above step b1, by dissolving gellan gum in hot water at 70°C, gellan gum molecules can be sufficiently dispersed and hydrated to form a uniform and viscous solution.

[0101] If the above temperature is below 60℃, the gellan gum may not dissolve sufficiently, causing lumps to form inside the gel or weakening the gel strength, which may result in an unstable final formulation; if it exceeds 80℃, the gelling ability may be reduced due to excessive thermal decomposition of the gellan gum molecules, which is undesirable.

[0102] In the present invention, the above step b2 is a step of stabilizing the deodorizing active ingredients of the final composition by mixing them in advance.

[0103] In step b2 above, wheat germ extract, malt extract, soybean extract, glycine, ethanol, and purified water are mixed separately to prepare a uniform deodorizing ingredient mixture.

[0104] If the above ingredients are added directly to the gellan gum solution, the deodorizing ingredients in the final composition may not be evenly dispersed due to miscibility issues between the ingredients or non-uniformity of the gelation reaction.

[0105] The above step b2 is an essential step for ensuring that deodorizing components are uniformly captured within the gel matrix when mixed with the gellan gum solution in the next step, step b3, and for ensuring the transparency of the final product, uniformity of the deodorizing effect, and continuous release effect.

[0106] In the present invention, steps b1 and b2 may be performed simultaneously or sequentially, but are not limited thereto.

[0107] In the present invention, step b3 is a process of combining a gelling agent and a deodorizing component to form a sustained-release solid emulsion.

[0108] In the above b3 step, temperature control and stepwise mixing are important.

[0109] If the temperature is below 40℃, the gellan gum hardens too quickly, so the deodorizing components are not evenly dispersed within the gel, and if it exceeds 50℃, the viscosity of the gellan gum solution decreases, and there is a risk that the deodorizing component mixture will separate.

[0110] In addition, when the deodorizing ingredient mixture is slowly added while stirring, deodorizing active ingredients such as wheat germ extract are finely and uniformly captured within the three-dimensional network structure of gellan gum.

[0111] According to an embodiment of the present invention, the gradual addition may mean adding a deodorizing component mixture at a rate of 15 mL per minute, but is not limited thereto.

[0112] If the above addition speed is too fast, gelation may occur unevenly or the deodorizing ingredients may clump together in one place, resulting in inconsistent deodorizing effects on the final product.

[0113] Step b4 of the present invention is to solidify the emulsion formed in b3 to complete the final deodorant composition.

[0114] Step b4 above is a process in which the emulsion gels and changes into a hard solid form, and is carried out at room temperature without a separate heat treatment or cooling process.

[0115] The above curing time may vary depending on the mixing ratio of the composition or the ambient temperature, but it usually hardens into a sufficiently solid form within 10 to 24 hours. Through this process, the liquid emulsion is transformed into a solid fragrance of the desired form, and the fragrance components are stably maintained within the gel, thereby achieving the effect of continuously exhibiting fragrance power.

[0117] Another aspect of the present invention is,

[0118] A method for preparing a sustained-release solid gel type deodorant composition comprising 10% by weight of wheat germ extract, 3% by weight of malt extract, 3% by weight of soybean extract, 3% by weight of glycine, 10% by weight of gellan gum, and 3% by weight of ethanol, wherein the method comprises the following steps:

[0119] b1) A step of preparing a gellan gum solution by dissolving gellan gum in hot water at 70°C;

[0120] b2) A step of preparing a deodorizing ingredient mixture by mixing wheat germ extract, malt extract, soybean extract, glycine, ethanol, and purified water;

[0121] b3) a step of cooling the gellan gum solution to 45°C, and then slowly adding the deodorizing component mixture while stirring to form a stable emulsion; and

[0122] b4) A step of curing the above emulsion so that it solidifies at room temperature.

[0123] The above wheat germ extract may be prepared by a method comprising the following steps:

[0124] a1) Step of grinding wheat germ;

[0125] a2) A step of obtaining an extract by immersing the ground wheat germ in a 20-30% (w / w) ethanol aqueous solution at 35℃ for 18 hours;

[0126] a3) A step of removing impurities by centrifuging the above extract at 2,000 to 3,000 rpm;

[0127] a4) A step of filtering the centrifuged extract through a ceramic filter with a pore size of 0.5 μm; and

[0128] a5) A step of concentrating the above-mentioned filtered extract under reduced pressure.

[0129] In the present invention, the specific details of the manufacturing method are substantially the same as those described in the composition, unless otherwise stated, and are omitted to avoid repetition. Effects of the invention

[0131] The present invention implements a multi-deodorization mechanism that combines the chemical neutralization action of wheat germ extract, the enzymatic decomposition and adsorption action of malt extract, and the antibacterial action of soybean extract, thereby providing the effect of comprehensively removing various odor-causing substances such as ammonia, methyl mercaptan, and trimethylamine, not limited to specific odors.

[0132] In addition, the manufacturing method of the present invention can obtain an extract with maximized purity and efficacy, thereby improving the deodorizing performance of the final product.

[0133] In addition, the present invention implements a sustained-release solid gel type formulation in which deodorizing components are finely and uniformly captured inside the gellan gum gel through specific temperature control and a step-by-step mixing process, thereby preventing the deodorizing components from volatilizing all at once and allowing them to be released at a constant rate over a long period, thus maintaining a stable deodorizing effect for a long period, thereby reducing the hassle of frequent replacement or reuse and greatly improving convenience of use.

[0134] Furthermore, the present invention ensures safety by using only plant-derived ingredients harmless to the human body, such as wheat germ, malt, and soybeans, and is eco-friendly by minimizing the use of separate artificial preservatives or harmful chemicals.

[0135] The effects obtainable from the embodiments are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by a person skilled in the art based on the detailed description below. Specific details for implementing the invention

[0137] The present invention will be described in more detail below by way of examples. However, these examples are intended to illustrate the invention and the scope of the invention is not limited by these examples. Additionally, each component or feature may be considered optional unless otherwise explicitly stated. Each component or feature may be implemented in a form not combined with other components or features. Furthermore, various embodiments may be constructed by combining some components and / or features. Some components or features of one embodiment may be included in another embodiment, or may be replaced with corresponding components or features of another embodiment. Additionally, terms not specifically defined in this specification should be understood to have the meaning commonly used in the technical field to which the present invention belongs.

[0139] Examples

[0141] 1) Preparation of wheat germ extract

[0142] 100g of wheat germ is ground using an ultrafine grinder until the particle size is less than 1mm. The ground wheat germ is immersed in 1L of a 25% (w / w) ethanol aqueous solution at 35℃ for 18 hours to obtain an extract.

[0143] The above extract is centrifuged at 2,500 rpm for 10 minutes to remove impurities, and the above extract is filtered through a ceramic filter with a pore size of 0.5 μm.

[0144] Finally, the filtered extract is concentrated under reduced pressure to remove water and ethanol, and a highly concentrated wheat germ extract is obtained.

[0146] 2) Preparation of composition

[0147] A deodorant composition was prepared as follows, including the wheat germ extract obtained in the above step, and the composition is shown in Table 1.

[0148] After heating purified water to 70℃, add 10g of gellan gum and dissolve it thoroughly.

[0149] A deodorizing ingredient mixture is prepared by mixing 10g of wheat germ extract prepared in Step 1, 3g of malt extract, 3g of soybean extract, 3g of glycine, and 3g of ethanol in a separate container.

[0150] After cooling the gellan gum solution to 45°C, the deodorizing component mixture is slowly added at a rate of 15 mL per minute while stirring to form a stable emulsion.

[0151] The above-mentioned prepared emulsion is placed in a container and left to stand at room temperature (about 25℃) for 2 hours to completely harden into a solid gel type.

[0152] ingredient Content (weight%) wheat germ extract 10.0 malt extract 3.0 Soybean extract 3.0 Glycine 3.0 Zelan gum 10.0 ethanol 3.0 purified water Remaining amount

[0154] Comparative example

[0155] A comparative example was prepared using a method substantially identical to that of the example, except that the deodorant composition was prepared by the following method:

[0156] After heating purified water to 80℃, 10g of wheat germ extract, 3g of malt extract, 3g of soybean extract, 3g of glycine, 10g of gellan gum, and 3g of ethanol are all added at once and stirred.

[0157] The mixture in which all ingredients are dissolved is placed in a container and left to stand at room temperature (about 25℃) for 2 hours to solidify.

[0159] Experimental Example 1

[0160] To evaluate the deodorizing efficacy of the composition according to the present invention, the removal rate of odor-causing components was measured.

[0162] 50g of a solid gel-type deodorant composition prepared in an embodiment of the present invention was placed in a sealed container with a capacity of 1L.

[0163] Initial concentrations were set by injecting odor-causing components, such as methyl mercaptan, ammonia, and trimethylamine gas, into each sealed container.

[0164] The sealed container was left for 2 hours under constant temperature and humidity conditions of 20±5℃.

[0165] After 2 hours, the removal rate was calculated by measuring the concentration of the odor-causing component inside each container and comparing it to the initial concentration.

[0166] As a control group, the same composition without deodorizing components (excluding wheat germ, malt, and soybean extracts) was used, and the results are shown in Table 2.

[0167] Odor-causing ingredients Smell characteristics Removal rate (%) Methyl mercaptan smell of rotten onions 99.2 ammonia bathroom smell 99.0 trimethylamine rotten fish smell 98.5

[0168] As can be seen above, the deodorant composition of the present invention exhibited a high removal rate of approximately 99% in the removal rate of three odor-causing components (methyl mercaptan, ammonia, and trimethylamine).

[0170] Experimental Example 2

[0171] The following experiment was performed to evaluate the efficacy duration of the products of the embodiments and comparative examples of the present invention.

[0172] Specifically, a deodorant prepared in an example of the present invention and a deodorant prepared in a comparative example were prepared, each of the two samples was placed in a sealed container and an odor-causing component (ammonia, 50 ppm) was injected, and the deodorization rate was measured after 24 hours and 48 hours, and the results are shown in Table 3.

[0173] Elapsed time Examples (Deodorization Rate %) Comparative Example (Deodorization Rate %) 0 hours 99.0 98.8 24 hours 98.3 91.0 48 hours 95.0 79.3

[0174] According to Table 3 above, both the example and the comparative example showed a high deodorization rate of over 98% at the beginning (0 hours), but the deodorizer according to the present invention maintained a high deodorization rate of 98.3% even after 24 hours and continued excellent efficacy of 95.0% even after 48 hours, whereas the deodorizer of the comparative example showed a deodorization rate of 79.3% after 48 hours, showing a significant difference in the sustainability of efficacy as time passed.

[0176] The various embodiments described above may be embodied in other specific forms without departing from the technical idea and essential features. Accordingly, the above detailed description should not be interpreted restrictively in all respects but should be considered exemplary. The scope of the various embodiments shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the various embodiments are included within the scope of the various embodiments. Furthermore, embodiments may be constructed by combining claims that do not have an explicit citation relationship in the patent claims, or they may be included as new claims through amendments made after filing.

Claims

Claim 1 A composition for a sustained-release solid gel type deodorizer comprising 10% by weight of wheat germ extract, 3% by weight of malt extract, 3% by weight of soybean extract, 3% by weight of glycine, 10% by weight of gellan gum, and 3% by weight of ethanol, wherein the composition is prepared by a method comprising the following steps: b1) a step of preparing a gellan gum solution by dissolving gellan gum in hot water at 70°C; b2) a step of preparing a deodorizing component mixture by mixing wheat germ extract, malt extract, soybean extract, glycine, ethanol, and purified water; b3) a step of forming a stable emulsion by cooling the gellan gum solution to 45°C and then slowly adding the deodorizing component mixture while stirring; and b4) a step of curing the emulsion so that it solidifies at room temperature. Claim 2 A composition for a sustained-release solid gel type deodorizer according to claim 1, wherein the wheat germ extract is prepared by a method comprising the following steps: a1) grinding wheat germ; a2) immersing the ground wheat germ in a 20-30% (w / w) aqueous ethanol solution at 35°C for 18 hours to obtain an extract; a3) centrifuging the extract at 2,000 to 3,000 rpm to remove impurities; a4) filtering the centrifuged extract through a ceramic filter with a pore size of 0.5 μm; and a5) concentrating the filtered extract under reduced pressure. Claim 3 delete

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