Composition for removing undesirable molecules

Abstract

To provide a method for producing a composition for removing undesirable molecules to which highly branched cyclic dextrin is applied. [Solution] The above problem is solved by a method for producing highly branched cyclic dextrin that encapsulates a flavoring in the internal space, which method includes the steps of adding and mixing highly branched cyclic dextrin (HBCD) or a derivative thereof and a hydrophobic flavoring with a ClogP of 3 or more into a solvent.

Description

Technical Field

[0001] The present invention relates to a composition capable of removing undesirable molecules and transmitting perfume substances.

[0002] This application claims priority based on Korean Patent Application No. 10-2014-0050740 filed on April 28, 2014, Korean Patent Application No. 10-2014-0087656 filed on July 11, 2014, and Korean Patent Application No. 10-2015-0002127 filed on January 7, 2015, and the contents disclosed in the specifications and drawings of the corresponding applications are all incorporated herein by reference.

Background Art

[0003] The sources of malodors generated in general living spaces are diverse. Many malodors are mainly composed of various components such as sulfur-based or nitrogen-based components combined. Methods for removing such malodors include physical methods, chemical methods, biological methods, or sensory methods. The physical method refers to a method using adsorption by porous substances such as activated carbon, silica gel, zeolite, alumina, or ceramics, or absorption by surfactants. The chemical method refers to a method of deodorizing malodors by using substances highly reactive to malodor components or substances that react with malodor components to form complexes as deodorants, using neutralization reactions, condensation reactions, addition reactions, oxidation, or reduction reactions. The biological method refers to a method of deodorizing by sterilizing bacteria or bacteria causing malodor generation or preventing spoilage using surfactants, ethylene glycol, microorganisms, or enzymes. The sensory deodorizing method refers to a method of substituting or neutralizing malodor stimuli with aromatic substances such as perfumes. Although various techniques for removing malodors are known in addition to such methods, the situation is that techniques capable of continuously removing malodors are still not sufficient.

[0004] In response to the numerous demands for odor removal in clothing, living spaces, and limited indoor spaces, companies have achieved this objective through diverse application research in laundry detergents, fabric softeners, surface cleaners, dishwashing detergents, deodorizers, shampoos, hair conditioners, body products, and underarm deodorants. One example of an effective odor-removing substance in many studies is the application of cyclodextrin (US6,878,695). Cyclodextrin is a polysaccharide with a cyclic structure in which 6 to 12 glucose units are linked by α-1,4 bonds. As an example of the most frequently developed and applied cyclodextrins, α-cyclodextrin contains 6 glucose units, another example is β-cyclodextrin which contains 7 glucose units, and yet another example is γ-cyclodextrin which contains 8 glucose units; all of these have a donut-shaped ring structure.

[0005] The specific bonds and structures between glucose molecules cause cyclodextrin to have a rigid, conical structure with a specific volume of internal space. The "arrangement" of each internal space is formed by oxygen atoms that form glycoside bridges with hydrogen atoms. As a result, the inner surface becomes highly hydrophobic, and the specific shape and physical and chemical properties of the interior give it structural characteristics that allow it to absorb organic molecules or parts of organic molecules whose shape matches that of the internal space of the cyclodextrin or its derivative. Therefore, when a formulation containing cyclodextrin is applied to the surface of an object, foreign substances such as off-odors can be encapsulated within the internal space of the cyclodextrin, thus eliminating the off-odor. Furthermore, by impregnating some of the fragrance into the product during the manufacturing process, the fragrance can be continuously released during use.

[0006] However, such cyclodextrins have the disadvantage that, due to the fixed size of their internal space, they are limited in the types of fragrance and odor substances they can encapsulate. Furthermore, when the formulation contains water-soluble solvents such as water, the poor solubility of cyclodextrins limits the expression of efficacy. In particular, fragrance substances with a ClogP of 3 or higher and a boiling point of 250°C or higher, which are generally known to have excellent residual fragrance and good odor masking effects, have limitations in terms of sufficient removal of odor substances and transfer of fragrance substances by cyclodextrins. In addition, because cyclodextrins have low solubility, derivatives are being developed to overcome this, and there are various types, such as substances in which some of the OH groups are substituted with OR groups, forms in which R is substituted with a methyl or ethyl group, forms in which R is substituted with a hydropropyl group such as -CH2-CH(OH)-CH3 or -CH2CH2-OH, and cationic cyclodextrins that exhibit cationic properties at pH.

[0007] The present invention relates to the removal of undesirable molecules, and more specifically, to a substance that overcomes the aforementioned problems of cyclodextrins conventionally used for the removal of off-odors and can encapsulate a wider variety of fragrance substances and off-odor substances. [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] This invention has been made in view of the above-mentioned problems, and aims to make it easier to remove a wider variety of undesirable molecules, more specifically a wider variety of off-odor sources, that could not be encapsulated by conventional cyclodextrins, by applying cyclic dextrins having a wider and more diverse range of internal space sizes, as well as enabling the encapsulation of a wider variety of hydrophobic and large molecular weight fragrance substances that could not be encapsulated by cyclodextrins.

[0009] Furthermore, another objective of the present invention is to provide a composition and method for releasing and releasing fragrances by applying cyclic dextrin having a wider and more diverse internal space, and releasing fragrance substances encapsulated within the internal space of the cyclic dextrin to encapsulate odor sources.

[0010] Furthermore, another objective of the present invention is to provide a method for producing a composition for removing undesirable molecules to which highly branched cyclic dextrin is applied. [Means for solving the problem]

[0011] To achieve the above objectives, the present invention provides a composition for removing undesirable molecules, characterized by comprising highly branched cyclic dextrin (HBCD) or a derivative thereof, a fragrance encapsulated within at least one internal space of the highly branched cyclic dextrin, and a solvent.

[0012] According to a preferred embodiment of the present invention, the highly branched cyclic dextrin may be in a form in which 16 to 100 D-glucose molecules are linked by alpha-1,6-glucosidic bonds.

[0013] Furthermore, according to another preferred embodiment of the present invention, the highly branched cyclic dextrin may have a dextrose equivalent value of 5 or less.

[0014] Furthermore, according to yet another preferred embodiment of the present invention, the highly branched cyclic dextrin is an oligosaccharide having α-D-glucose as a monomer, and having the chemical formula (C6H 10 It may be a compound represented by O5)xH2O (where x is an integer between 200 and 5,000).

[0015] Furthermore, according to yet another preferred embodiment of the present invention, the highly branched cyclic dextrin may have an average molecular weight of 30,000 to 1,000,000 g / mol.

[0016] Furthermore, according to yet another preferred embodiment of the present invention, the highly branched cyclic dextrin may be included in an amount of 0.01 to 20% by weight relative to the total weight of the composition.

[0017] Furthermore, according to yet another preferred embodiment of the present invention, the solvent may include water.

[0018] Furthermore, according to yet another preferred embodiment of the present invention, the composition may further contain a surfactant.

[0019] Furthermore, according to yet another preferred embodiment of the present invention, the composition may further contain a water-soluble polymer.

[0020] Furthermore, according to yet another preferred embodiment of the present invention, the composition may further contain a plant extract. [Effects of the Invention]

[0021] The composition for removing undesirable molecules according to the present invention, by applying cyclic dextrin having a wider and more diverse internal space size, not only facilitates the removal of undesirable molecules that could not be encapsulated by cyclodextrin, more specifically, a variety of off-odor sources, but also enables the encapsulation of a wider variety of fragrance substances that cannot be encapsulated by cyclodextrin, are hydrophobic, and have a large molecular weight. With such a composition, the fragrance substances within the highly branched cyclic dextrin are replaced with off-odor sources, resulting in a fragrance with excellent masking ability and high preference, while also enabling the removal of foreign substances such as undesirable molecules like off-odor sources.

[0022] Furthermore, the composition for removing undesirable molecules according to the present invention, by further containing plant extracts, exhibits a synergistic effect in removing off-odors.

Brief Description of the Drawings

[0023] The following drawings attached to this specification illustrate desirable embodiments of the present invention and serve to further understand the technical idea of the present invention together with the detailed description of the invention. Therefore, the present invention should not be construed as being limited only to the matters described in the drawings. [Figure 1] It is a schematic diagram generally showing the formation process of highly branched cyclic dextrin according to the present invention.

Modes for Carrying Out the Invention

[0024] Hereinafter, desirable embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, the terms and words used in this specification and claims should not be construed as being limited to the ordinary or dictionary meanings. The inventor himself / herself must interpret them in accordance with the meaning and concept corresponding to the technical idea of the present invention in accordance with the principle that the concept of the terms can be appropriately defined in order to explain the invention in the best way. Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the drawings are only the most desirable embodiments of the present invention and do not represent all of the technical ideas of the present invention. At the time of this application, there may be various equivalents and modifications that can replace them.

[0025] The present invention relates to a composition for removing undesirable molecules, characterized by containing highly branched cyclic dextrin (HBCD) or a derivative thereof, a fragrance and a solvent included in at least one or more internal spaces of the highly branched cyclic dextrin.

[0026] This invention recognizes that cyclodextrins, used for odor removal, have a limited internal space and shape, restricting the types of odor sources or fragrances they can encapsulate. To address this, the inventor devised a highly branched cyclic dextrin with a broader and more diverse internal space than the single-structure space of cyclodextrins. This highly branched cyclic dextrin not only exhibits significantly improved odor removal capabilities compared to conventional cyclodextrins, but also has the ability to encapsulate large, hydrophobic fragrance substances that cyclodextrins could not encapsulate. Anticipating further improved odor removal capabilities, the inventor completed this invention.

[0027] Subsequently, the inventors of the present invention discovered the remarkable fact that when a specific plant extract is included together with highly branched cyclic dextrin, the odor removal effect is synergistically enhanced compared to when either highly branched cyclic dextrin or the plant extract is included alone, and thus completed the present invention.

[0028] In the present invention, an undesirable molecule refers to an organic aromatic molecule that is an odor source having an undesirable smell. Such odor sources can be present on the surface of textiles such as carpets, on household items such as kitchen countertops, dishes, floors, trash cans, ceilings, walls, and air purifier filters, and on surfaces such as skin and hair. According to the present invention, such undesirable molecules, i.e., odor sources, can be removed. Examples of such odor sources include (E)-5-methyl-2-hexenoic acid, 5-methyl-4-hexenoic acid, 6-heptenoic acid, isovaleric acid, 4-methylhexenoic acid, or ethyloctanoic acid, which are known to be odor components that can be generated on textiles (Flavor and Fragrance Journal, 2012, vol. 27, 89-94), and various studies on odor components originating from the human body are also progressing (Anti-Aging Medicine, 2010, 7(6):60-65). Therefore, the term "odor source" in this invention refers to ordinary odor components that can occur in daily life, such as those originating from the human body or textiles, but is not limited to such examples.

[0029] This composition can exist as an emulsion / dispersed phase or as a clear, single-faced solution.

[0030] For the purpose of removing odors from textiles or the human body, the composition of the present invention is preferably a transparent, single-sided solution, which is transparent or translucent, and preferably has a water-like transparency.

[0031] Furthermore, when the composition of the present invention is used as a detergent, fabric softener, shampoo, or surface cleaning agent, an emulsion / dispersed phase is preferable, and it can generally have aggregates of micelles or vesicles with a size of about 0.05 μm or larger, preferably about 0.1 μm or larger, and more preferably about 0.2 μm or larger. Such compositions can exist as transparent, translucent, or opaque depending on the type and concentration of the substances in the composition.

[0032] The composition of the present invention must be capable of effectively delivering a highly branched cyclic dextrin or a derivative thereof, but is not limited to the above-described dosage form.

[0033] The components of the composition for removing undesirable molecules will be described in more detail below.

[0034] 1) Highly branched cyclic dextrin (HBCD)

[0035] Cyclodextrins and their derivatives have traditionally been used in compositions to remove undesirable substances. Cyclodextrins contain 6 to 8 glucose molecules, which form a donut-shaped ring structure. The specific bonds and structure between glucose molecules in such cyclodextrins cause them to have a rigid, conical structure with a specific volume of internal space. The arrangement of each internal space is formed by oxygen atoms that form glycoside bridges with hydrogen atoms. As a result, the inner surface becomes highly hydrophobic, and the specific shape and physical and chemical properties of the interior allow for the removal of off-odor substances by absorbing organic molecules or parts of organic molecules whose shape matches that of the internal space of the cyclodextrin or its derivative. Furthermore, fragrances are located within these specific internal shapes, and there is a mechanism that allows the fragrance to replace the off-odor and be encapsulated within the cyclodextrin when an off-odor is present.

[0036] This invention aims to overcome the limitations of cyclodextrins by applying cyclic dextrins, which have a broader and more diverse internal space than the single spatial structure of cyclodextrins mentioned above.

[0037] The cyclic dextrin used in the present invention is a highly branched cyclic dextrin, which is a chemical structure in which the links of a glucose polymer polysaccharide chain, which has a highly branched structure due to α-1,6 links in a linear chain, such as amylopectin, are broken, and these broken links are used by a branching enzyme to form a cyclic chain. For example, it can be formed by the method schematically shown in Figure 1.

[0038] More specifically, the highly branched cyclic dextrin used in the present invention is (C6H 10 It can be expressed as O5)xH2O (where x is an integer between 200 and 5,000), and is an odorless white powder oligosaccharide with α-D-glucose as the monomer, with an average molecular weight of approximately 30,000 to 1,000,000 per mole (g / mol), preferably about 100,000 to 900,000, more preferably about 200,000 to 800,000, even more preferably about 300,000 to 700,000, and most preferably about 400,000 to 600,000. If the average molecular weight is less than 30,000 g / mol, the internal space is narrow, resulting in poor inclusion ability for large odor components or fragrances of various sizes, and if it exceeds 1,000,000 g / mol, the dosage form stability and molecular stability of the composition are impaired. The degree of polymerization is 2500 glucose units. Furthermore, the dextrose equivalent (DE) value, i.e., the reducing power of D-glucose, is preferably 5 or less. Preferably, the form is one in which 16 to 100 D-glucose molecules are linked to a linear chain by α-1,4 bonds via side-chain α-1,6-glucosidic bonds. This bonding structure gives highly branched cyclic dextrins a cyclic alpha-glucan moiety.

[0039] As described above, when the highly branched cyclic dextrin according to the present invention meets the conditions such as the average molecular weight, equivalent value, and number of side-chain D-glucose molecules, it becomes more readily soluble in water and has a more desirable fragrance inclusion ability, making it more suitable for the purposes of the present invention.

[0040] Furthermore, a highly branched cyclic dextrin derivative refers to a structure in which, based on the structural characteristics of the highly branched cyclic dextrin according to the present invention, the basic structure is maintained in such a way that all the functions according to the present invention can be obtained, while atoms or groups of atoms that do not affect the functions of the present invention are substituted.

[0041] Thus, by using a highly branched cyclic dextrin having a high degree of branching in the composition according to the present invention, the ability of the composition to bind to undesirable molecules on the treated surface is improved, and undesirable molecules on the surface can be reduced or removed even more effectively at lower concentrations compared to cyclodextrin derivatives.

[0042] More specifically, a structural feature of the highly branched cyclic dextrin according to the present invention is that it can absorb (form polymers) a variety of organic molecules or parts of organic molecules that match the shape of at least one of the internal spaces of the highly branched cyclic dextrin. Therefore, in addition to undesirable organic molecules such as odor molecules, it can incorporate foreign substances that are abundant on the surface of objects into its internal space. Accordingly, the highly branched cyclic dextrin according to the present invention, which has internal spaces of various sizes, can not only remove odors generated by organic aromatic molecules in a broad sense that have a variety of active groups, but can also effectively deliver a variety of fragrance substances or odor-removing substances that have excellent residual fragrance, good odor masking ClogP of 3 or higher, and a boiling point of 250°C or higher.

[0043] In this composition, highly branched cyclic dextrin can be present in an amount of at least about 0.01 to 20% by weight, preferably about 0.05 to 10% by weight, and more preferably about 0.1 to 5% by weight, within the overall composition for it to function effectively. When present in the above amounts, it is effective not only in removing off-odors but also in transmitting fragrance components. If the amount of highly branched cyclic dextrin is less than 0.01% by weight, the deodorizing effect is weak, and if it exceeds 20% by weight, problems arise with the dosage form stability of the composition.

[0044] 2)Fragrance The fragrance according to the present invention is encapsulated within at least one cyclic structure of the highly branched cyclic dextrin, forming a stable composition. The stable composition of the present invention provides a sensory quality of a pleasant fragrance, which, when applied to surfaces such as textiles or the human body, removes foreign matter, i.e., unpleasant odors, and imparts a refreshing feeling. The fragrance according to the present invention can provide a fragrance with at least long-lasting properties.

[0045] The fragrances that can be encapsulated within the highly branched cyclic structure dextrin according to the present invention are characterized by their ability to encapsulate a wide variety of fragrances, regardless of whether they are hydrophilic or hydrophobic. This is because the highly branched cyclic structure dextrin according to the present invention can encapsulate not only fragrances that can be encapsulated by cyclodextrin, but also fragrances that could not be encapsulated by cyclodextrin, thus demonstrating its ability to encapsulate a wide variety of fragrances. In other words, the fragrances that can be encapsulated within the highly molecularly cyclic structure dextrin according to the present invention are not limited to specific fragrances, but include a wide variety of fragrances.

[0046] On the other hand, the fragrance concentration of the fragrance is the ratio of alcohol to the perfume concentrate, and the fragrance concentration of the fragrance according to the present invention is about 0% to about 3% of the total composition, preferably about 0.003% to about 2%, and more preferably about 0.005% to about 1%.

[0047] This invention adds fragrance to eliminate off-odors and further extend the duration of the scent on the surface. If a strong fragrance is required, a fragrance with a high concentration or a fragrance with excellent lingering scent can be used. Any type of fragrance can be applied to the composition of this invention, and the fragrance components can be either hydrophobic or hydrophilic.

[0048] To make the fragrance last longer, the fragrance should preferably have at least partial hydrophobicity and a relatively high boiling point. That is, the fragrance mainly consists of fragrance raw materials belonging to the following two groups: (a) a hydrophobic component with a ClogP of 3.0 or higher, preferably ClogP of 3.5 or higher, and (b) a fragrance component having a molecular weight of 205 or higher, preferably 210 or higher, and more preferably 220 or higher.

[0049] The properties of the aforementioned fragrance components are difficult to clearly distinguish based on physical properties such as ClogP and molecular weight, because they exhibit diverse isomers and have a significant impact on surrounding substances. Therefore, the aforementioned values ​​should be interpreted flexibly as approximate values ​​indicating the properties of the fragrances, and the interpretation of the numerical range should be flexible.

[0050] For such hydrophobic fragrances, the weight ratio of highly branched cyclic dextrin to fragrance is approximately 2:1 to 200:1, preferably approximately 4:1 to 100:1, more preferably approximately 6:1 to 50:1, and even more preferably approximately 8:1 to 30:1 (highly branched cyclic dextrin:fragrance).

[0051] Hydrophobic fragrances have the property of strongly binding to cyclic dextrin. The hydrophobicity of a fragrance component is related to its octanol / water splitting coefficient P, and the octanol / water splitting coefficient of a fragrance is the equilibrium concentration ratio of the fragrance in octanol and water. The higher the splitting coefficient P of a fragrance, the more hydrophobic it is, and conversely, the lower the splitting coefficient P, the more hydrophilic it is. Since the splitting coefficient of fragrances is generally high, it can be conveniently expressed in the form of logP using a logarithm with a base of 10. Therefore, the other fragrances in this invention have a logP value of about 3 or more, preferably about 3.1 or more, and most preferably about 3.2 or more.

[0052] Furthermore, the composition of the hydrophobic fragrances shall each contain at least about 5% to 80% by weight of the overall fragrance composition, preferably about 10% to 60% by weight, and more preferably about 15% to 40% by weight.

[0053] More specifically, the highly branched cyclic dextrin according to the present invention can encapsulate at least one fragrance from the group consisting of galxolide, iso-E super, helvetolide, cashmeran, cervolid, and aurantiol, which cyclodextrins were unable to encapsulate. Such fragrances have excellent odor-masking ability, high fragrance preference, and, as hydrophobic fragrances with large molecular weights, can more easily improve fragrance persistence.

[0054] Table 1 below shows the compatibility of several residual fragrances with cyclodextrin and the highly branched cyclic dextrin according to the present invention. Because the highly branched cyclic dextrin according to the present invention has a more diverse and wider internal space than cyclodextrin, it can encapsulate fragrances with larger molecular weights that cannot be contained in cyclodextrin with a ClogP of 3.0 or higher. Therefore, by using the highly branched cyclic dextrin according to the present invention, a wider range of fragrances can be applied, thereby broadening the fragrance spectrum of this composition and increasing the persistence of the residual fragrance.

[0055] [Table 1] TIFF0007886081000002.tif72170

[0056] The fragrance formulation for the present invention generally includes at least four hydrophobic residual fragrances, preferably five, more preferably six, and even more preferably seven. Furthermore, the most widely used naturally derived fragrances consist of multiple components.

[0057] Furthermore, hydrophilic fragrances have the characteristic of readily detaching from highly branched cyclic dextrin within a water-soluble composition, and such hydrophilic fragrances mainly consist of components having a ClogP of about 3.5, preferably about 3.0 or less.

[0058] If the fragrance components are hydrophilic, they will dissolve in a water-soluble composition and will not bind well to cyclic dextrin. To maintain the function of cyclic dextrin in reducing and removing foreign substances such as off-odors, the hydrophilic fragrance should be present in a weight ratio of approximately 90% by weight or less, preferably 50% by weight or less, more preferably 30% by weight or less, and even more preferably 10% by weight or less, to highly branched cyclic dextrin. The ratio of cyclic dextrin to such hydrophilic fragrance should preferably be approximately 8:1 or higher, more preferably approximately 10:1 or higher, even more preferably approximately 20:1 or higher, and most preferably approximately 70:1 (cyclic dextrin:hydrophilic fragrance) or higher.

[0059] Furthermore, in this composition, fragrance can be present in an amount of 0.1 to 10.0% by weight, preferably 0.5 to 5.0% by weight, relative to the total weight of the composition, in order to fulfill its role. When this amount is present, the improvement of sensory quality due to fragrance can be maximized.

[0060] 3) Solvent In this invention, the solvent refers to a transporter, preferably water, but distilled water, deionized water, or tap water can also be used. Water not only acts as a transporter for highly branched cyclic dextrin, but can also promote the binding of foreign substances such as odor molecules on the treated surface to highly branched cyclic dextrin. Furthermore, it is known that treating a surface contaminated with odors generated by polar, low molecular weight organic amines, acids, mercaptans, etc., with an aqueous solution reduces the intensity of the odor. It is believed that water used as the solvent in this invention reduces the intensity of the odor by solubilizing polar, low molecular weight odor molecules and decreasing their vapor pressure.

[0061] The concentration of the solvent, i.e., water, used in the composition of the present invention may vary depending on the use of the composition (e.g., dosage form). For compositions for passive or automatic spraying, the weight of water relative to the weight of the total composition is preferably about 30% to about 99.9% by weight, more preferably about 50% to about 99.9% by weight, and even more preferably very high, about 60% to about 95% by weight.

[0062] Furthermore, in the composition for removing odors from textiles, alcohol can be used as a solvent, preferably a lower alcohol having 1 to 4 carbon atoms, such as methanol or ethanol, and it is used at a concentration of about 20% by weight or less, preferably about 10% or less, and more preferably about 5% or less, relative to the total weight of the composition.

[0063] Diluting the aqueous solution expands the coverage area of ​​highly branched cyclic dextrin on the fabric, maximizing the opportunity for highly branched cyclic dextrin molecules to bind with odor molecules.

[0064] 4) Surfactants The surfactant of the present invention may be further included in the composition of the present invention to appropriately reduce or remove foreign matter on the surface of an object, or to allow fragrance components to release their fragrance over a long period of time. For the proper removal of off-odors, the surfactant should include a stable surfactant that can readily bind to the highly branched cyclic dextrin according to the present invention, and it is important that the surfactant forms a polymer with off-odor substances that do not readily encapsulate the highly branched cyclic dextrin according to the present invention, generating low surface tension and spreading easily and uniformly on hydrophobic surfaces such as textiles.

[0065] The surfactants used in the present invention may include those commonly used in the composition of detergents, fabric softeners, shampoos, surface cleaners, cosmetics, body products, mouthwashes, body soaps, shaving products, and moisturizers.

[0066] When a composition containing a stable surfactant with highly branched cyclic dextrin is used, it dries even faster depending on the type and characteristics of the surfactant applied, and odors can be removed from the treated object more quickly. Some components of the composition, such as fragrances that do not readily dissociate when encapsulated with the highly branched cyclic dextrin, promote micelle or vesicle formation with the highly branched cyclic dextrin and the surfactant, maintaining the appropriate fragrance strength during use and enhancing the advantage of long-lasting residual fragrance on the treated surface during use.

[0067] The binding force between the surfactant and the highly branched cyclic dextrin according to the present invention can be determined by observing the change in interfacial tension (dyne / cm) with and without the addition of highly branched cyclic dextrin to an aqueous surfactant solution. The aqueous surfactant solution contains surfactant at concentrations of approximately 0.5%, 0.1%, 0.01%, and 0.005%. If the increase in interfacial tension of an aqueous solution containing the same concentration of surfactant as the given aqueous surfactant solution, and further containing approximately 1% by weight of highly branched cyclic dextrin, is approximately 10% or more, it indicates the presence of a strong bond between the surfactant and the cyclic dextrin.

[0068] The desirable surfactant for the composition according to the present invention is one whose surface tension change is weakly bound to the cyclic dextrin (surface tension increases by less than about 5%) or not bound at all (surface tension increases by less than about 1%).

[0069] The typical concentration of surfactant in the composition according to the present invention is about 0.01% to about 2% by weight relative to the total weight of the composition, preferably about 0.03% to about 0.6% by weight, and more preferably about 0.05% to about 0.3% by weight. The concentration of surfactant in the composition of concentrated surfactant is generally about 0.1% to about 20% by weight, preferably about 0.2% to about 15% by weight, and more preferably about 0.3% to about 10% by weight, but is not limited to these values.

[0070] Effective surfactants in this composition are exemplified below, but are not limited thereto. Examples include block polymer surfactants, siloxane surfactants, anionic surfactants, amphoteric surfactants, cationic surfactants, castor oil surfactants, sorbitan ester surfactants, polyexcallylated fatty alcohol surfactants, glycerol monovalent fatty acid ester surfactants, polyethylene glycol fatty acid ester surfactants, carbonized fluoro surfactants, and mixtures thereof.

[0071] The aforementioned block polymer surfactants include block polymers of ethylene oxide and propylene oxide, and can be Pluronic® and Tetronic®, among others.

[0072] The siloxane surfactant is preferably a polyalkylene oxide polysiloxane as the anionic surfactant, and has a hydrophobic portion of dimethylpolysiloxane and a more hydrophilic polyalkylene chain. Examples of such surfactants include the Silwet® series. 1The number of ethylene oxy(-C2H4O) units within the polyalkylene oxide polysiloxane must be sufficient for it to be water-soluble. If propylene oxy groups are present within the polyalkylene oxy chain, they can be randomly located within the chain or exist in a block-like manner. In addition to their surfactant properties, polyalkylene oxide polysiloxane surfactants have additional effects such as antistatic properties and flexibility in fabrics.

[0073] Examples of the aforementioned anionic surfactants include alkyldiphenyl oxide disulfonates and alkyl ether sulfonates. Anionic surfactants that can be used in detergents and shampoos include ammonium lauryl sulfate, ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, monovalent ethanolamine lauryl sulfate, monovalent ethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monovalent glyceride sodium sulfate, sodium lauryl sulfate, potassium lauryl sulfate, potassium laureth sulfate, ammonium cocoyl sulfate, ammonium lauoyl sulfate, sodium cocoyl sulfate, sodium lauoyl sulfate, potassium cocoyl sulfate, potassium lauoyl sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monovalent ethanolamine cocoyl sulfate, monovalent ethanolamine lauryl sulfate, sodium N-lauoyl-N methyltaurate, sodium tridecylbenzene sulfate, and sodium dodecylbenzene sulfate. Suitable anionic surfactants for this composition are selected from ammonium laureth-3 sulfate, chloride laureth-3 sulfate, ammonium lauryl sulfate, chloride lauryl sulfate, and mixtures thereof. Such anionic surfactants are undesirable when cationic antimicrobial agents or preservatives are used because they reduce their binding with cationic surfactants, thereby reducing the effectiveness of the surfactant and antimicrobial agents.

[0074] A variety of amphoteric surfactants can be used in the compositions of the present invention. In particular, aliphatic secondary and tertiary amine derivatives are preferred, but these aliphatic radicals have a linear or branched structure, and one of them has an ionizable water-soluble active group such as a carboxylate, sulfonate, sulfate, or phosphate. Examples of amphoteric or cationic surfactants include betaine, sultaine, and hydroxysultaine. Betaines include cocodimethylcarboxymethyl betaine, lauryldimethylcarboxyethyl betaine (Lonzaine 16SP, manufactured by Lonzq), laurylbis-(2-hydroxyethyl)carboxymethyl betaine, stearylbis-(2-hydroxypropyl)carboxymethyl betaine, oleyldimethylgamma-carboxypropyl betaine, laurylbis-(2-hydroxypropyl)α-carboxyethyl betaine, cocodimethylsulfopropyl betaine, stearyldimethylsulfopropyl betaine, stearyl betaine, lauryldimethylsulfoethyl betaine, laurylbis-(2-hydroxyethyl)sulfopropyl betaine, as well as amide betaine and amide sulfobetaine (where the RCONH(CH2)3 radical is bonded to the nitrogen atom of betaine), oleyl betaine (aliphatic Velvetex OLB-50, manufactured by Henkel), and cocamidopropyl betaine (Velvetex BK-35 and BA-35, manufactured by Henkel). Sultaine and hydroxysultaine include cocamidopropyl hydroxysultaine (Mirataine CBS, manufactured by Rhone Poulenc).

[0075] Other types of surfactants include those derived from amino acids, which contain the basic chemical structure of amino acids, i.e., the structure of natural amino acids. Generally, surfactants are derived from N-methylglycine, such as glycine, sarcosine, glutamic acid, arginine, alanine, and phenylalanine.

[0076] The cationic surfactants generally contain quaternary nitrogen, and the fatty acids may contain or be bonded with other active groups such as amino groups in addition to carbon and hydrogen. Fatty acids having long chains with about 12 or more carbon atoms can be saturated or unsaturated. Particularly preferred are cationic substances having two long alkyl chains with about 12 to about 22 carbon atoms, preferably about 16 to about 22, and two short alkyl chains with about 1 to about 3 carbon atoms, preferably about 1 to about 2, or one long alkyl chain and three short alkyl chains. Also preferred are polyoxyethylene or polyoxypropylene in which at least one substituted product is hydroxyalkyl, preferably hydroxyethyl or hydroxypropyl, or polyoxyalkylene, and the degree of intramolecular ethoxylation or propoxylation is about 5 to about 20. Salts of primary, secondary, and tertiary amines are also preferred as cationic surfactants. The alkyl groups of such amines preferably have about 12 to about 22 carbon atoms and can be substituted or unsubstituted.

[0077] The castor oil surfactant is a partially or entirely hydrogenated polyoxyethylene castor oil ether or polyoxyethylene compressed castor oil or a mixture thereof, which is favorable for forming molecular polymers such as micelles or vesicles with cyclic dextrin-incompatible surfactants.

[0078] The sorbitan ester surfactants described above include sorbitan esters having long fatty acid chains containing 14 to 18 or 16 to 18 carbon atoms, which are cyclic dextrin-compatible surfactants and form molecular polymers with the cyclic dextrin-incompatible substances of the present invention. Common examples of sorbitan polyesters having long fatty acid chains include sorbitan tripalmitate, sorbitan trioleate, and sorbitan beef tallow fatty acid triester. Other sorbitan ester surfactants include sorbitan fatty acid esters having partially monovalent and trivalent esters. Yet another type of sorbitan ester surfactant is polyethoxylated sorbitan fatty acid ester.

[0079] The aforementioned polyethoxylated fatty acid ester surfactants include polyethoxylated fatty alcohol surfactants. Branched (polyethoxylated) fatty alcohols act as cyclic dextrin-compatible surfactants in this composition. Glycerol monovalent fatty acid ester surfactants include glycerol monovalent stearate, oleate, palmitate, and laurylate. Polyethylene glycol fatty acid ester surfactants act as cyclic dextrin-compatible surfactants. Fluorocarbon surfactants have fluorine, in which the hydrophobic portion of an amphoteric substance, which is at least part of a linear or cyclic active group based on carbon, is bonded to carbon, and generally hydrogen is bonded to carbon to form a hydrophilic portion. Some common fluorocarbon surfactants include ionic surfactants such as fluorinated alkyl polyoxyalkylenes and fluorinated alkyl esters.

[0080] 5) Water-soluble polymers In the present invention, water-soluble polymers may be further included in the composition of the present invention. Water-soluble polymers such as water-soluble cationic polymers and water-soluble anionic polymers are even more desirable to be included in the composition of the present invention because they have an additional odor removal effect. Typical examples of water-soluble cationic polymers include polyamines, which contain amino groups, amide groups, or mixtures thereof, and are used to remove specific acidic odors.

[0081] Furthermore, water-soluble anionic polymers such as polyacrylic acid and its water-soluble salts are used to remove certain amine odors. Polyacrylic acid and its alkali metal salts have an average molecular weight of less than approximately 20,000, and preferably less than 5,000. Polymers containing sulfate groups, phosphate groups, phosphonic acid, water-soluble salts thereof and mixtures thereof, and mixtures of carboxylic acids and carboxyl groups can also be used. Water-soluble polymers having both cationic and anionic active groups can also be used. When using water-soluble polymers, generally about 0.001% to about 3% by weight is used based on the total weight of the composition, preferably about 0.01% to about 1% by weight, and more preferably about 0.05% to about 0.5% by weight.

[0082] 6) Plant extracts The composition for removing undesirable molecules according to the present invention synergistically enhances the deodorizing effect by adding a plant extract with excellent deodorizing properties to the highly branched cyclic dextrin. The plant extract adsorbs and decomposes malodorous odors, exhibiting excellent deodorizing power and sustained deodorizing effect, is safe for the human body, and permanently decomposes the adsorbed malodorous odors without re-emitting them.

[0083] The plant extracts that can be used in the present invention may include one or more plant extracts selected from the group consisting of green tea, persimmon leaves, dried tangerine peel, and star anise. Preferably, the plant extract may be a mixture containing extracts of green tea, persimmon leaves, dried tangerine peel, and star anise, and more preferably, the plant extract is a mixture containing extracts of green tea, persimmon leaves, dried tangerine peel, and star anise in a weight ratio of approximately 1:1:1:1. In such cases, the deodorizing effect of the composition for removing undesirable molecules is most excellent for the purposes of the present invention.

[0084] The plant extracts that can be used in the present invention may be plant solvent extracts obtained by extracting from plants using water or organic solvents such as ethanol or hexane, which are commonly used. Preferably, the plant solvent extract is extracted from plants by a hot water extraction method. More preferably, the plant extract can be a reaction product of a plant solvent extract containing polyphenolic plant essential oil and a mineral. The mineral can be a silicate mineral such as talc, kaolin, zeolite, or mica, and preferably zeolite can be used.

[0085] The reaction product of the plant solvent extract and minerals, unlike a simple plant extract, contains many ionized compounds. The plant extract produced by the method described above contains ionized compounds such as O2, H, and OH, which induce the repetitive interaction effect of these elements. By reacting with malodorous molecules such as amines, mercaptans, or sulfurs, it alters the molecular structure of the odor source, thereby exhibiting excellent deodorizing power. Furthermore, the plant extract is harmless to the human body and prevents odor from remaining on the deodorizer by permanently decomposing the adsorbed odor, resulting in excellent sustained deodorizing power.

[0086] The plant extract in the composition for removing undesirable molecules according to the present invention may be present in an amount of 0.01 to 10% by weight, preferably 0.05 to 5% by weight, and more preferably 0.1 to 3% by weight, relative to the total weight of the composition. If the amount of plant extract is less than 0.01% by weight, the deodorizing effect is not sufficiently exhibited, and if it exceeds 10% by weight, further improvement in the deodorizing effect with increasing content cannot be expected, making it uneconomical and resulting in poor dosage form stability. Therefore, the weight ratio of highly branched cyclic dextrin to plant extract in the composition for removing undesirable molecules is preferably 0.1:1 to 1:0.1, more preferably 0.2:1 to 1:0.2, and even more preferably 0.3:1 to 1:0.3 (highly branched cyclic dextrin: plant extract).

[0087] 7) Other ingredients The composition of the present invention may further include other diluents, excipients, antimicrobial agents, skin protectants, antistatic agents, moisturizers, or plant extracts (excluding green tea, persimmon leaves, dried tangerine peel, and star anise).

[0088] Furthermore, the composition for removing undesirable molecules of the present invention can be used in applications such as laundry detergents, fabric softeners, surface cleaners, dishwashing detergents, deodorizers, shampoos, hair conditioners, body products, and underarm deodorants, but is not limited to these.

[0089] Furthermore, the present invention provides a composition for removing undesirable molecules, comprising 0.01 to 10% by weight of highly branched cyclic dextrin (HBCD) or a derivative thereof, relative to the total weight of the composition, and 0.01 to 10% by weight of a plant extract comprising green tea, persimmon leaves, dried tangerine peel, and star anise. Preferably, the highly branched cyclic dextrin has an average molecular weight of 30,000 to 1,000,000 g / mol. For the purposes of the present invention, a composition for removing undesirable molecules containing components in the above weight ratios exhibits remarkably excellent deodorizing effects.

[0090] Furthermore, the composition for removing undesirable molecules according to the present invention can be produced by a manufacturing method comprising: (s1) reacting a plant extract containing 0.01 to 10% by weight of polyphenol-based plant essential oil with a mineral based on the total weight of the composition; and (s2) adding and mixing 0.01 to 10% by weight of highly branched cyclic dextrin (HBCD) or a derivative thereof to the reactant in step (s1). Preferably, the highly branched cyclic dextrin has an average molecular weight of 30,000 to 1,000,000 g / mol. Preferably, the plant may include one or more plants selected from the group consisting of green tea, persimmon leaves, dried tangerine peel, and star anise, and more preferably, it may include all of green tea, persimmon leaves, dried tangerine peel, and star anise.

[0091] The present invention also provides a method for removing undesirable molecules, preferably a method for deodorizing malodors such as ammonia or methyl mercaptan, comprising the step of processing a composition for removing undesirable molecules, which includes a step of processing a highly branched cyclic dextrin (HBCD) or a derivative thereof, a fragrance and solvent encapsulated in at least one internal space of the highly branched cyclic dextrin, and selectively a surfactant, a water-soluble polymer, a plant extract or a mixture thereof.

[0092] The present invention will be described below with reference to specific examples. However, the examples of the present invention can be modified into many other forms, and the scope of the present invention should not be construed as being limited to the examples described below. The examples of the present invention are provided to give a more complete explanation of the present invention to a person of average skill in the industry. [Examples]

[0093] <Examples> Since the composition according to the present invention consists of substances such as highly branched cyclic dextrin, fragrance, and solvent, it is important to ensure that the functionality of the highly branched cyclic dextrin is present in the composition during the production process. In order to retain the functional highly branched cyclic dextrin in the composition, the first highly branched cyclic dextrin must be mixed with a surfactant. As a result, after molecular polymers such as micelles or vesicles are formed, substances such as fragrances can be impregnated into the highly branched cyclic dextrin-surfactant molecular polymer, thereby effectively separating it from the internal space of the highly branched cyclic dextrin and retaining a composition that functions functionally within the composition.

[0094] In this invention, a composition was manufactured in spray form, applied, and evaluated for the purpose of removing odors from textiles, particularly dry textiles. However, the efficacy of this invention is not limited to the above-mentioned dosage form. For spray formulations used for the purpose of removing odors from textiles, it is desirable to use a composition that applies a low concentration of highly branched cyclic dextrin so as not to leave stains on the textile with typical usage amounts, and the solution applied to the surface of an object under general usage conditions should not be visible after drying.

[0095] Under general usage conditions, the total weight of highly branched cyclic dextrin in a composition is typically about 0.01 to 20% by weight, preferably about 0.05 to 10% by weight, and more preferably about 0.1 to 5% by weight. For highly branched cyclic dextrin to exhibit its function within the composition, it is most desirable to include at least about 0.1% to 5% by weight. Compositions with high concentrations may leave visible stains on fabrics as they dry, which can be particularly problematic in thin, colored synthetic fabrics.

[0096] The fragrance component set included in one embodiment of the present invention is shown in Table 2 below, and the content of the composition containing it is shown in Table 3.

[0097] [Table 2]

[0098] [Table 3]

[0099] 1. Odor intensity evaluation The odor removal effect of the comparative and example compositions was evaluated as follows.

[0100] 1) For evaluation, cotton towels cut to 30cm x 30cm were washed in a washing machine using unscented detergent and then dried in a dryer. 2) Apply approximately 80 μL of the odor-causing formula to a dry cotton towel, covering an area of ​​5 cm x 5 cm on each fabric, place in a plastic bag, seal it, and leave at room temperature overnight. 3) A trained evaluator will assess the initial odor intensity of the fabric coated with the odor and score it according to the odor evaluation scale below. 4) Next, apply the same amount of the formulation to be evaluated to the fabric and let it dry for 30 seconds. 5) Once the fabric is dry, the evaluator will score the odor intensity of the fabric coated with the odor using the following odor evaluation scale. 6) Record the initial score and the subsequent score, and calculate the odor reduction value using the difference in scores.

[0101] There were a total of eight evaluators. Prior training was provided to ensure a clear understanding of the standard odor. Each evaluator conducted their assessment individually in a separate evaluation booth equipped with forced ventilation, and to ensure accuracy, they were limited to no more than three evaluations at a time.

[0102] Table 4 below shows the criteria for evaluating off-odors. [Table 4]

[0103] Furthermore, to evaluate the lingering fragrance of cyclic dextrin, the fragrance intensity was assessed at 10 minutes and 30 minutes to evaluate the effect of cyclic dextrin on increasing the lingering fragrance.

[0104] Table 5 below shows the criteria for evaluating residual fragrance. [Table 5]

[0105] 2. Evaluation Results Cotton towels cut to 30cm x 30cm were coated with approximately 80μL of the odor formulation in a 5cm x 5cm area on each piece of fabric. The towels were then placed in a plastic bag, sealed, and left at room temperature overnight. Eight expert panelists then evaluated the odor intensity, resulting in a score of 4.2.

[0106] Table 6 shows the difference between the evaluation results after applying the samples to Comparative Example 1 and Examples 1-7 and drying for 30 seconds, and the evaluation results after evaluating only the odor source. [Table 6]

[0107] Examples 1-7, which used cyclic dextrin, demonstrated superior odor removal compared to Comparative Example 1, which used cyclodextrin as the odor removal base. Comparing Comparative Example 1 and Example 1, only the odor removal base differed; in Examples 1 and 2, the content of the odor removal base was the same, only the type differed. This indicates that, when the content of the odor removal base is the same, cyclic dextrin is superior to cyclodextrin in odor removal.

[0108] Furthermore, in Examples 2 and 3, it was found that the odor removal effect of cyclic dextrin increased when Copolymer 958, a cyclic dextrin-compatible polymer, was applied. Comparing Examples 4 and 5, when the fragrance content was varied to 0.10% and 0.06%, Example 4, with its higher fragrance content, was found to be superior. Also, comparing Examples 2 and 4, which differed in the application of the amphoteric surfactant Velvetex BK-35, it was found that the results of Example 4, which used Velvetex BK-35, were superior. A comparison of Examples 6 and 7 revealed that the odor removal effect was increased when a cyclic dextrin-compatible polymer and an amphoteric surfactant, which can provide a synergistic effect on odor removal by cyclic dextrin, were added.

[0109] Table 7 shows the results of evaluating the residual fragrance intensity after 10 minutes and 30 minutes. Comparing Comparative Example 1 with Examples 1-7, it was found that the difference in residual fragrance properties was even greater after 30 minutes than after 10 minutes. This suggests that cyclic dextrin encapsulates more fragrance components with a ClogP of 3.0 or higher and a boiling point of 250°C or higher than cyclodextrin, and releases them over time.

[0110] Furthermore, the results showed that the difference between the lingering scent after 10 minutes and after 30 minutes was smaller as the cyclic dextrin content increased, thus confirming this fact once again. From a comparison of Example 6 and Example 7, it was confirmed that the effect of cyclic dextrin in increasing lingering scent is further enhanced when polymers that can increase the interadhesion between the fragrance and the fiber, or amphoteric surfactants, are added.

[0111] [Table 7]

[0112] <Manufacturing of Examples 8-16 and Comparative Example 2> In the production of the deodorizing compositions of Examples 8-16 and Comparative Example 2, highly branched cyclic dextrin (HBCD) was used in a mixture of oligosaccharides, which are odorless white powders that use α-D-glucose as monomers, with an average molecular weight in the range of approximately 30,000 to 1,000,000 per mole (g / mol), in an amount of 0 to 0.8% by weight.

[0113] The plant extract was obtained by reacting a polyphenol-based plant essential oil component, produced by mixing 50g each of dried green tea, persimmon leaves, dried tangerine peel, and star anise by a hot water extraction process in 5L of purified water at 110°C for 60 minutes, with minerals such as zeolite, and was used in a range of 0-1% by weight.

[0114] Deodorizing compositions for Examples 8-16 and Comparative Example 2 were prepared by adding highly branched cyclic dextrin and plant extracts, along with other surfactants, fragrances, and additives, to purified water and mixing them in the composition ratios shown in Table 8 below.

[0115] 3. Evaluation of the deodorizing power of the deodorizing agent compositions of Examples 8-16 and Comparative Example 2 The deodorizing power test used the detection tube and detection pump measurement method described in ASTM D1988 for ammonia and methyl mercaptan, as well as a sensory evaluation method in which trained evaluators assess the odor intensity of food odors.

[0116] Methyl mercaptan was used as a reagent-grade gas at a concentration of 0.1% in benzene, ammonia was used as an odor source diluted to a concentration of 0.05% in water, and kimchi stew was used as an odor source diluted to a concentration of 0.1% in water. A GV-100S Air Sampling Pump, Gastec Co. (Japan) was used as the gas suction pump, and Gastec Detector tube No. 71 (Methyl mercaptan) and Gastec Detector tube No. 3La (Ammonia) were used as the gas detection tubes.

[0117] To evaluate the deodorization rate for ammonia and methyl mercaptan, a fixed amount of purified water or the stock sample solution was placed in a 250 mL container, followed by the addition of the malodorous solution and sealing. After 10 minutes, the detection tube was drawn in using a gas suction pump, and the detected malodorous concentration was recorded.

[0118] The deodorization rate was calculated by multiplying the following by 100 (%): (Odor detection concentration in the detector tube when using purified water, ppm) - (Odor detection concentration in the detector tube when using the sample, ppm) / (Odor detection concentration in the detector tube when using purified water, ppm) to obtain the percentage, which was then used as the deodorization rate.

[0119] The deodorization rate for kimchi stew was determined by a trained evaluator who assessed the initial odor intensity of fabric coated with the odor-causing agent using an evaluation scale. After applying the same amount of the formulation to the fabric and letting it dry for 30 minutes, the odor intensity was evaluated again. The difference in evaluation scores after drying was used to calculate the odor reduction value. The evaluation scale for the food odor of kimchi stew was scored from 0 to 5 points, with higher scores indicating better deodorizing power.

[0120] [Table 8]

[0121] The evaluation results showed that the deodorizing compositions of Examples 8-16, which were formulated by individually incorporating highly branched cyclic dextrin or by mixing it with plant extracts, were superior to Comparative Example 2, which was formulated by individually incorporating plant extracts, in terms of deodorizing power against ammonia and methyl mercaptan, and against the malodorous odor of kimchi stew.

Claims

1. A method for producing highly branched cyclic dextrin (HBCD) or a derivative thereof, and a fragrance, comprising the steps of adding and mixing the HBCD and a fragrance in a solvent, wherein the fragrance is encapsulated within the internal space of the highly branched cyclic dextrin. The method involves providing a fragrance containing a hydrophobic fragrance with a ClogP of 3 or higher, a boiling point of 250°C or higher, and a molecular weight of 205 or higher, in an amount of 40 to 80% by weight based on the overall fragrance composition.

2. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, characterized in that the highly branched cyclic dextrin is in a form in which 16 to 100 D-glucose molecules are linked by α-1,6-glucosidic bonds.

3. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, characterized in that the highly branched cyclic dextrin has a dextrose equivalent value of 5 or less.

4. The aforementioned highly branched cyclic dextrin is an oligosaccharide with α-D-glucose as its monomer, and has the chemical formula (C ６ H １０ O ５ ) x H ２ A method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, characterized in that the compound is represented by O (where x is an integer from 200 to 5,000).

5. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, characterized in that the highly branched cyclic dextrin has an average molecular weight of 30,000 to 1,000,000 g / mol.

6. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, characterized in that the solvent contains water.

7. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, according to claim 1, further comprising adding and mixing a surfactant into the solvent.

8. The method for producing a highly branched cyclic dextrin in which a fragrance is encapsulated in the internal space, as described in claim 1, further comprising adding and mixing a water-soluble polymer in the solvent.

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