Emulsion composition containing powder component

Abstract

To provide novel means to facilitate miniaturization of emulsion particles and reduce a ratio of coarse particles in order to improve emulsifiability.SOLUTION: An emulsified composition of this invention is prepared by including low molecular ghatti gum having a weight average molecular weight of 0.02×106-1.1×106, a powder component, an oil phase component, and water.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an emulsion composition containing a powder component and a method for producing the same. [Background technology]

[0002] Various means have been proposed to date for improving the emulsifiability of emulsion compositions.

[0003] For example, Patent Document 1 discloses an emulsion composition containing low molecular weight gum ghatti, which has higher emulsifying properties than gum ghatti. Patent Document 2 discloses an emulsion composition containing, in addition to low molecular weight gum ghatti, a salt of an element belonging to Group 1 or 2 of the periodic table. Furthermore, Patent Document 3 discloses an emulsion composition containing, in addition to low molecular weight gum ghatti, a processed starch. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2018 / 062554 [Patent Document 2] International Publication No. 2019 / 107574 [Patent Document 3] International Publication No. 2019 / 208539 Summary of the Invention [Problem to be solved by the invention]

[0005] However, further means for improving the emulsifying properties of emulsion compositions have been desired.

[0006] Therefore, an object of the present invention is to provide a new means for promoting the miniaturization of emulsion particles and reducing the proportion of coarse particles in order to improve emulsifiability. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above problems, and as a result, have found that the weight-average molecular weight of the polymer is 0.02×10 6 ~1.1×10 6 The present inventors have found that an emulsion composition containing the low-molecular-weight gum ghatti, a powder component, an oil phase component, and water promotes the formation of fine emulsion particles and inhibits the formation of coarse particles, thereby completing the present invention.

[0008] That is, the present invention provides the following emulsion composition. [1] (A) Weight average molecular weight is 0.02 × 10 6 ~1.1×10 6 An emulsion composition comprising the low molecular weight gum ghatti of (A), (B) a powder component, (C) an oil phase component, and (D) water. [2] (B) The emulsion composition according to [1], wherein the powder component content is 0.005 to 9.9% by mass. [3] The emulsion composition according to [1] or [2], wherein the powder component (B) contains one or more selected from the group consisting of polyphenols, ascorbic acid fatty acid esters, sterols, water-insoluble polysaccharides, insoluble metal salts, inorganic salts, and organic polymer compounds. [4] The emulsion composition according to any one of [1] to [3], wherein the oil phase component (C) contains one or more selected from the group consisting of oil-soluble fragrances, oil-soluble colorants, oil-soluble physiologically active substances, oil-soluble resins, and oil-based solvents. [5] The emulsion composition according to any one of [1] to [4], which is in the form of a liquid, semi-solid, powder, granules, or tablet.

[0009] The present invention further provides the following microparticle composition. [6] (A) Weight average molecular weight is 0.02 × 10 6 ~1.1×10 6 (B) a powder component; and (C) an oil phase component. the components (A) and (B) are present outside the component (C); Particulate composition.

[0010] Furthermore, the present invention provides the following aqueous composition. [7] An aqueous composition comprising the emulsion composition according to any one of [1] to [5] or the particulate composition according to [6].

[0011] The present invention also provides the following method for producing an emulsion composition. [8] (A) Weight average molecular weight is 0.02 × 10 6 ~1.1×10 6 (B) a powder component; (C) an oil phase component; and (D) water; and emulsifying the mixture A method for producing an emulsion composition, comprising:

[0012] Furthermore, the present invention provides the following agents: [9] (A) Weight average molecular weight is 0.02 × 10 6 ~1.1×10 6 A preparation containing (A) low molecular weight gum ghatti and (B) a powder component.

[0013] Furthermore, the present invention provides the following method for promoting the fineness of emulsion particles, suppressing the formation of coarse particles, or improving emulsion stability.

[10] (A) Weight average molecular weight is 0.02 × 10 6 ~1.1×10 6 A method for promoting the fineness of emulsion particles, suppressing the formation of coarse particles, or improving emulsion stability, comprising incorporating (A) low molecular weight gum ghatti and (B) a powder component. [Effects of the Invention]

[0014] According to the configuration of the present invention, the particle size of the emulsified particles can be made smaller and the proportion of coarse particles can be reduced. DETAILED DESCRIPTION OF THE INVENTION

[0015] [Emulsifying composition] The emulsion composition of the present invention comprises (A) a weight-average molecular weight of 0.02×10 6 ~1.1×10 6 (B) low molecular weight gum ghatti, (B) powder components, (C) oil phase components, and (D) water.

[0016] The emulsion composition of the present invention may be an oil-in-water type (O / W type) or a water-in-oil type (W / O type), but is preferably an oil-in-water type.

[0017] ((A) Low molecular weight gum ghatti) In this specification, "gum ghatti" refers to a polysaccharide derived from the sap (secretory fluid) of the ghatti tree (Anogeissus latifolia Wallich), and is a water-soluble polysaccharide that is normally soluble in water to a concentration of about 30% by mass at room temperature or higher. In the present specification, low molecular weight gum ghatti is included in gum ghatti.

[0018] The weight-average molecular weight of the low-molecular-weight gum ghatti (component (A)) used in the present invention is 0.02 × 10 6 ~1.1×10 6 and preferably 0.025 × 10 6 ~1×10 6 , more preferably 0.029 × 10 6 ~0.95×10 6 is.

[0019] The molecular weight distribution (ratio of weight average molecular weight / number average molecular weight) (Mw / Mn) of low-molecular-weight gum ghatti is preferably within the range of 1.1 to 13, more preferably within the range of 1.1 to 10, even more preferably within the range of 1.1 to 8, still more preferably within the range of 1.1 to 6, and particularly preferably within the range of 1.1 to 4.

[0020] The molecular weight and molecular weight distribution of low-molecular-weight gum ghatti are measured by the following method. <Method for measuring molecular weight and molecular weight distribution> The molecular weight and molecular weight distribution are measured by gel permeation chromatography (GPC) analysis under the following conditions. Detector: RI Mobile phase: 100mM K2SO4 Flow rate: 1.0ml / min Temperature: 40℃ Column: TSKgel GMPWXL 30cm (Guard PWXL) Injection: 100 μl Pullulan Standard: Shodex STANDARD P-82

[0021] The viscosity of an 8% by mass aqueous solution (20°C) of the low molecular weight gum ghatti used in the present invention as component (A) is not particularly limited, but is preferably 4.5 to 70 mPa·s, more preferably 4.9 to 60 mPa·s. Here, the viscosity of low molecular weight gum ghatti is measured by placing 80 g of an 8% by mass aqueous solution (20°C) of a gum ghatti sample in a 100 ml screw bottle (inner diameter: 3.7 cm) using the following equipment and conditions. <Apparatus and conditions> B-type viscometer (Brookfield type viscometer): Rotor No. 2 Rotation speed: 60 rpm Measurement temperature: 20℃

[0022] The low-molecular-weight gum ghatti can be obtained by subjecting gum ghatti to a molecular weight reduction treatment in the presence of water. The method for the molecular weight reduction treatment is not particularly limited, but examples thereof include thermal decomposition treatment, acid decomposition treatment, and enzymatic decomposition treatment.

[0023] Specifically, the low molecular weight gum ghatti used in the present invention can be produced by the production method described in, for example, WO2018 / 062554, JP2019-182886A, or JP2019-183144A.

[0024] The content of component (A) is not particularly limited, but from the viewpoint of significantly exhibiting the effects of the present invention, it is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1% by mass or more, still more preferably 2% by mass or more, and particularly preferably 4% by mass or more, relative to the total amount of the emulsion composition. The content of component (A) is not particularly limited, but is preferably 25% by mass or less, more preferably 20% by mass or less, and even more preferably 15% by mass or less, based on the total amount of the emulsion composition.

[0025] ((B) Powder component) The powder component used as component (B) of the present invention is not particularly limited as long as it is a powdery solid that is insoluble in the oil phase component and water. Here, "insoluble" means that the solubility in each solvent at 20°C is less than 10 g / L (preferably less than 5 g / L, more preferably less than 1 g / L).

[0026] The shape of the powder component is not particularly limited and may be various shapes such as spherical, approximately spherical, cubic, rectangular, cone-shaped, columnar, or irregular, but from the viewpoint of significantly exhibiting the effects of the present invention, spherical or approximately spherical shapes are preferred.

[0027] The powder component is not particularly limited, but examples thereof include one or a combination of two or more selected from the group consisting of polyphenols, ascorbic acid fatty acid esters, sterols, water-insoluble polysaccharides, insoluble metal salts, inorganic salts, and organic polymer compounds.

[0028] Polyphenols are natural organic compounds with a polyphenol skeleton containing two or more phenolic hydroxyl groups in the molecule. Examples of such polyphenols include, but are not limited to, flavonoids, phenylpropanoids (lignoids) (e.g., caffeic acid, lignan, neochlorogenic acid, cryptochlorogenic acid, isochlorogenic acid, tricaffeoylquinic acid, rosmarinic acid), stilbenoids (e.g., piacetannol, pinosylvin, resveratrol), curcumins, ellagic acid, tannins, theaflavins (e.g., theaflavin, thearubigin), xanthohumol, strictinin, phloretin, and polymers thereof. The polyphenols used in the present invention encompass glycosides in which sugars are glycosidically bonded to the aglycones of each type. These polyphenol compounds may be used alone or in combination.

[0029] The polyphenols used in the present invention preferably contain glycosides, from the viewpoint of significantly exhibiting the effects of the present invention.

[0030] Flavonoids are compounds having a C6-C3-C6 diphenylpropane structure in which two benzene rings (C6) are connected by three carbon atoms (C3). Examples of flavonoids include, but are not limited to, flavonols (quercetin, myricetin, kaempferol, galangin, rhamnetin, etc.; myricitrin, quercitrin, isoquercitrin, rutin, xanthamnin, etc.), flavanones (naringenin, hesperetin, flavanone, flavanonol, pinocembrin, pinostrobin, liquiritigenin, butin, sakuranetin, isosakuranetin, etc.; naringin, hesperidin, liquiritin, sakuranin, poncirin, etc.), flavones (apigenin, luteolin, flavone, chrysocolla, etc.), and flavones (apigenin, luteolin, flavon, chrysocolla, etc.). Examples of such compounds include cinnamic acid, cosmosin, acacetin, baicalein, diosmetin, etc.; apiin, tringin, fortunelin, baicalin, scutellarin, diosmin, etc.), catechins (catechin, gallocatechin, epicatechin, epigallocatechin, catechin gallate, gallocatechin gallate, epicatechin gallate, epigallocatechin gallate, etc.), isoflavones (daidzin, genistin, glycitin, etc.; daidzein, genistein, glycitein, etc.), anthocyanidins (cyanidin, delphinidin, pelargonidin, proanthocyanidin, etc.; anthocyanins), chalcones, biflavones (fukugetin, etc.), ginkgo, bilobetin, polymethoxyflavones, etc. In the examples of flavonoids, when the compound names in parentheses are separated by ";", the part before the ";" is the aglycone and the part after the ";" is the glycoside.

[0031] The polyphenols used in the present invention may be polymers in which two or more compounds having the above polyphenol skeleton are polymerized, or may be non-polymers, but non-polymers are preferred from the viewpoint of suppressing the color of the preparation. Examples of polymeric polyphenols include, but are not limited to, tannins.

[0032] From the viewpoint of significantly exhibiting the effects of the present invention, the polyphenols used in the present invention are preferably flavonoids, more preferably one or more compounds selected from flavonols, flavanones, flavones, catechins, isoflavones, anthocyanidins, and chalcones, even more preferably one or more compounds selected from flavonols, flavanones, and flavones, even more preferably one or more compounds selected from the group consisting of myricitrin, naringin, hesperidin, and apiin, and particularly preferably myricitrin.

[0033] The origin of the polyphenols used in the present invention is not particularly limited, and examples thereof include plant extracts or plant juices such as tea (including green tea leaves, black tea leaves, oolong tea leaves, etc.), sweet tea, yerba mate, coffee beans, bayberry, cacao, blueberries, cranberries, red wine, rosemary, du zhong leaves, raspberries, soybeans, apples, hops, grapes, pomegranates, Chinese soybeans, red clover, black currants, lychees, and kiwifruit. Examples of extracts that can be used include extracts of citrus fruits, amla, pine, evening primrose, guava, mint, eucalyptus, black rice, black soybean, peanut, buckwheat, sugarcane, butterbur, red ginger, rose, perilla, barley, olive, red citrus, mallow, licorice, clove, horseradish, sage, parsley, houttuynia cordata, rapeseed, sunflower, pimenta, ginkgo, pepper, balsam, moringa, eucalyptus leaves, gentian, and sweet potato.

[0034] In this specification, the total polyphenol content is expressed as a (+)-catechin equivalent value obtained using the Folin-Ciocalteu method with (+)-catechin as the standard substance. The Folin-Ciocalteu method is based on "Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent" (ISO 14502-1:2005).

[0035] Although the ascorbic acid fatty acid ester is not particularly limited, the constituent fatty acid is preferably a fatty acid having 12 to 18 carbon atoms, more preferably palmitic acid or stearic acid. In the present invention, these ascorbic acid fatty acid esters may be used alone or in combination of two or more.

[0036] The sterols are not particularly limited, and examples thereof include sterols (animal-derived sterols such as cholesterol, dihydrocholesterol, lanosterol, dihydrolanosterol, and desmosterol; plant-derived sterols such as stigmasterol, sitosterol, campesterol, brassicasterol, and mixtures thereof such as phytosterols; and microbial-derived sterols such as ergosterol); sterol analogs (γ-oryzanol, ursolic acid, glycyrrhetinic acid, and the like); and esters thereof, which may be selected alone or in combination. Among these, phytosterols are preferred, and β-sitosterol is more preferred.

[0037] The water-insoluble polysaccharide is not particularly limited, and examples thereof include one or a combination of two or more powders selected from the group consisting of celluloses (e.g., sodium carboxymethylcellulose, calcium carboxymethylcellulose, carboxymethylcellulose (CMC), hydroxypropyl cellulose (HPC), hydroxypropyl methylcellulose, hydroxypropyl ethyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, ethyl cellulose, methyl cellulose, etc.), fermented cellulose, microcrystalline cellulose (MCC), microfibrous cellulose, hemicellulose, plant-derived dietary fiber (fruit-derived dietary fiber (citrus fiber, apple fiber, grape seed fiber, etc.), wheat fiber, sugarcane fiber, oat fiber, beet fiber, pea fiber, etc.), chitin, and water-insoluble glucans.

[0038] The insoluble metal salts or inorganic salts are not particularly limited, but examples include powders of ingredients used in foods, such as calcium salts (calcium hydrogen phosphate, tricalcium phosphate, calcium hydroxide, calcium carbonate, calcium citrate, calcined shell calcium, calcined bone calcium, uncalcined coral calcium, calcined eggshell calcium, calcium oxide, etc.), magnesium salts (magnesium carbonate, trimagnesium phosphate, magnesium monohydrogen phosphate, magnesium silicate, magnesium oxide, etc.), iron salts (ferrous pyrophosphate, ferrous oxide (iron sesquioxide), etc.), aluminum lakes with food colorings (aluminum lakes such as Food Red No. 3, Food Red No. 40, Food Yellow No. 4, and Food Yellow No. 5), silicon dioxide (silica, fine silicon dioxide), titanium dioxide, and talc. Examples of insoluble metal salts or inorganic salts include silica (hydrophobic silica), kaolin, mica, vermiculite, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salts, magnesium, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), fluorinated apatite, hydroxyapatite, ceramic powder, inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.), inorganic red pigments (e.g., iron titanate, etc.), inorganic purple pigments (e.g., mango violet, cobalt violet, etc.), It is also possible to use powders of components selected from the group consisting of inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.), inorganic blue pigments (e.g., ultramarine, Prussian blue, etc.), pearl pigments (e.g., titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, colored titanium oxide-coated mica, bismuth oxychloride, etc.), metal powder pigments (e.g., aluminum powder, copper powder, etc.), zirconium, barium compounds, aluminum lake, germanium, and boron compounds (borax, boric acid, etc.). In the present invention, these insoluble metal salt or inorganic salt powders can be used alone or in combination of two or more. Among them, the insoluble metal salt or inorganic salt used in the present invention is preferably one or more selected from the group consisting of tricalcium phosphate, magnesium oxide, and powdered hydrophobic silica.

[0039] The organic polymer compound is not particularly limited, but examples thereof include powders selected from the group consisting of polyamide resin (nylon), polyethylene, polyester, polyurethane, polymethyl methacrylate, polystyrene, styrene-acrylic acid copolymer resin, benzoguanamine resin, polytetrafluoroethylene, and silicone resin (polymethylsilsesquioxane, etc.). In the present invention, powders of these organic polymer compounds can be used alone or in combination of two or more. Among these, polystyrene is preferred as the organic polymer compound used in the present invention.

[0040] The content of component (B) is not particularly limited, but from the viewpoint of significantly achieving the effects of the present invention, it is preferably 0.005% by mass or more relative to the total amount of the emulsion composition. The content of component (B) is not particularly limited, but is, for example, 9.9% by mass or less, 5% by mass or less, 2% by mass or less, 1% by mass or less, 0.5% by mass or less, 0.2% by mass or less, or 0.1% by mass or less, relative to the total amount of the emulsion composition.

[0041] The D50 particle size of the powder component (B) is preferably 0.01 to 1.0 μm, more preferably 0.03 to 0.8 μm, even more preferably 0.04 to 0.8 μm, and particularly preferably 0.05 to 0.6 μm, from the viewpoint of significantly achieving the effects of the present invention.

[0042] In this specification, the D50 particle size of a powder component is determined from the particle size distribution obtained by suspending and diluting the powder component in a dispersible solvent to a measurable concentration (e.g., 1 g of powder component per 100 mL of solvent), dispersing the powder uniformly using a vortex mixer, and measuring the dispersion with a laser diffraction particle size analyzer at 25°C. The D50 particle size represents the particle size at which the cumulative volume-based frequency of particles reaches 50%. Water is used as the solvent unless there are particular problems with dispersibility.

[0043] ((C) Oil phase component) In this specification, the term "oil phase component" refers to a liquid whose solubility in water at 20° C. is less than 1 g / L (preferably less than 0.5 g / L). The oil phase component forms the hydrophobic liquid phase (oil phase) of the emulsion composition.

[0044] The oil phase component is not particularly limited, but may contain, for example, one or more components selected from the group consisting of oil-soluble fragrances, oil-soluble dyes, oil-soluble physiologically active substances, oil-soluble resins, and oil-based solvents.

[0045] In this specification, "oil-soluble" can mean the property of having a solubility in one or both of n-hexane and ethyl acetate of 10 g / L or more (preferably 50 g / L) at 20°C.

[0046] The oil-soluble flavoring (including fat-soluble flavoring; the same applies hereinafter) is not limited as long as it is an oil-soluble or fat-soluble substance containing a flavor component. Preferably, it is an edible flavoring that can be incorporated into foods and beverages, or a flavoring that can be applied to the human body as a cosmetic.

[0047] Examples of oil-soluble flavorings include: (1) extracts obtained from natural animal or plant materials by methods such as extraction with non-volatile solvents, extraction with volatile solvents, and supercritical extraction; (2) natural flavorings such as essential oils or recovered flavors obtained by steam distillation or compression; (3) synthetic flavorings synthesized by chemical methods; and (4) flavoring bases obtained by adding or dissolving these flavorings in oils, fats, or solvents. Examples of the "natural flavoring agent" include extracts such as absolutes, extracts, and oleoresins; essential oils such as cold-pressed oils; and alcohol extracts called tinctures.

[0048] Specific examples of the fragrance include: (1) citrus essential oils such as orange oil, lemon oil, grapefruit oil, lime oil, and mandarin oil; (2) flower essential oils or absolutes such as lavender oil; essential oils such as peppermint oil, spearmint oil, and cinnamon oil; and (3) spices such as allspice, aniseed, basil, laurel, cardamom, celery, cloves, garlic, ginger, mustard, onion, paprika, parsley, and black pepper. (3) essential oils or oleoresins of the above-mentioned types; synthetic fragrances such as limonene, linalool, geraniol, menthol, eugenol, vanillin, nerol, citronellol, citral, cinnamic aldehyde, anethole, perillaldehyde, and γ-undecalactone; (4) extracted oils derived from beans such as coffee, cocoa, vanilla, and roasted peanuts; (5) extracts of black tea, green tea, and oolong tea; and other synthetic fragrance compounds. These fragrances can be used alone, but are usually used in combination of two or more to form a blended fragrance. In this specification, the term "fragrance" is defined as a concept including not only fragrances consisting of a single compound but also blended fragrances.

[0049] The oil-soluble colorant (including fat-soluble colorant; the same applies hereinafter) is not limited as long as it is an oil-soluble or fat-soluble substance containing a coloring component. Preferably, it is an edible colorant that can be incorporated into foods and beverages, or a colorant that can be applied to the human body as a cosmetic.

[0050] Examples of oil-soluble pigments include paprika pigments, annatto pigments (norbixin, bixin, etc.), tomato pigments, marigold pigments, turmeric pigments, Haematococcus algae pigments, Dunaliella carotene, carrot carotene, palm oil carotene, α-carotene, β-carotene, astaxanthin, canthaxanthin, lycopene, lutein, apocarotenal, curcumin, fucoxanthin, cryptoxanthin, zeaxanthin, capsanthin, capsorubin, norbixin, bixin, siphonaxanthin, and chlorophyll. These oil-soluble pigments can be used alone or in any combination of two or more.

[0051] The oil-soluble physiologically active substance (including fat-soluble physiologically active substances; the same applies hereinafter) is not limited as long as it is an oil-soluble or fat-soluble substance that is useful to the living body. Preferably, it is an edible substance that can be incorporated into foods and beverages, or a substance that can be applied to the human body as a cosmetic.

[0052] The oil-soluble bioactive substances include (1) oil-soluble drugs; (2) fat-soluble vitamins such as liver oil, vitamin A (e.g., retinol), vitamin A oil, vitamin D (e.g., ergocalciferol and cholecalciferol), vitamin B2 butyrate, ascorbic acid fatty acid ester, vitamin E (e.g., tocopherol and tocotrienol), and vitamin K (e.g., phylloquinone and menaquinone); (3) plant essential oils such as limonene, linalool, nerol, citronellol, geraniol, citral, l-menthol, eugenol, cinnamic aldehyde, anethole, perillaldehyde, vanillin, and gamma-undecalactone; and (4) resveratrol, oil-soluble polyphenols, glycosylceramide, sesamin, phosphatidylserine, and coenzyme Q. 10 (5) omega-3 fatty acids such as alpha-linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid; (6) omega-6 fatty acids such as linoleic acid and gamma-linolenic acid; and (7) steroids such as plant sterols and animal sterols. Among these, preferred examples are fat-soluble vitamins; coenzyme Q. 10α-lipoic acid; and omega-3 fatty acids such as α-linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid. These oil-soluble physiologically active substances can be used either alone or in any combination of two or more.

[0053] The oil-soluble resin is not particularly limited, but examples thereof include elemi resin, mastic resin, rosin, dammar resin, and ester gum.

[0054] The oil-based solvent is preferably one that can be used as a solvent for the oil-soluble resin, specifically one that is compatible with the oil-soluble resin.

[0055] The oily solvent is preferably an edible substance that can be incorporated into food and drink, or a substance that can be applied to the human body as a cosmetic. In this specification, the term "oils and fats" can be understood in its ordinary meaning based on common technical knowledge, and the terms "oil" and "fats" can be interpreted overlappingly or integrally, interchangeably, or complementary depending on the context. "Oils and fats" includes (1) triacylglycerols, which are oils and fats in the narrow sense; (2) substances that have properties similar to the triacylglycerols (1) and are generally called oils (e.g., wax esters); and (3) substances that contain these as main components and are generally called oils and fats. In this specification, the "oil" as the oily solvent is preferably an oil that is liquid at 50°C (preferably 20°C).

[0056] Such oily solvents include (1) vegetable oils and fats, (2) animal oils and fats, and (3) sucrose acetate isobutyrate (SAIB), glycerin fatty acid esters, and triglycerides [e.g., medium-chain triglycerides (MCT)]. The examples may overlap. These may be used alone or in any combination of two or more. Among these, the oily solvent used in the present invention preferably contains one or more selected from the group consisting of glycerin fatty acid esters, triglycerides, sucrose acetate isobutyrate, and vegetable oils and fats, and more preferably contains one or more selected from the group consisting of glycerin fatty acid esters and triglycerides (more preferably medium-chain triglycerides).

[0057] The vegetable oils and fats are not particularly limited as long as they are derived from plants, and examples include rapeseed oil, palm oil, soybean oil, olive oil, jojoba oil, coconut oil, safflower oil, corn oil, rice oil, sesame oil, linseed oil, cottonseed oil, and perilla oil, and other oils and fats that have been refined, processed by hydrogenation, interesterification, or the like, and liquid or powder emulsions of these oils and fats processed with an emulsifier or powder base, such as vegetable fat coffee whitener, vegetable fat whipped cream, and vegetable fat cream.

[0058] The animal fats and oils are not particularly limited as long as they are derived from animals, and for example, milk fat contained in milk components collected from mammals such as cows and goats can be suitably used. Examples of substances containing milk fat include raw milk, cow's milk, goat's milk, concentrated milk, sweetened condensed milk, evaporated milk, whole milk powder, cream, fermented milk, butter, processed milk, and cheese. Animal fats and oils further include beef tallow, lard, and fish oil. Animal fats and oils also include those modified with enzymes such as amylase, protease, lipase, and phospholipase.

[0059] Medium-chain triglycerides (MCT) refer to triacylglycerols consisting of medium-chain fatty acids having about 6 to 12 carbon atoms, preferably 6 to 10 carbon atoms, and more preferably 8 to 10 carbon atoms. As medium-chain triglycerides (MCT), any commercially available product can be used without any restrictions. Specific examples include caprylic triglyceride, capric triglyceride, mixed caprylic and capric triglycerides, and the like, and mixtures thereof.

[0060] Examples of the glycerin fatty acid ester include polyglycerin fatty acid esters in which 5 to 8 molecules of saturated fatty acid having 2 to 10 carbon atoms are ester-bonded to polyglycerin having an average degree of polymerization of 3 to 10. The average polymerization degree of the polyglycerin in the glycerin fatty acid ester may preferably be 3 to 6. The saturated fatty acid is not particularly limited, but is preferably a saturated fatty acid having 6 to 10 carbon atoms, more preferably a saturated fatty acid having 8 to 10 carbon atoms. The glycerin fatty acid ester may be one type alone or a mixture of two or more types.

[0061] As the glycerin fatty acid ester, any commercially available product can be used without any restrictions, and an example thereof is "Salacos HG-8" manufactured by Nisshin Oillio Group Co., Ltd.

[0062] The content of component (C) is not particularly limited, but the upper limit, relative to the total amount of the emulsion composition, can be, for example, 90 mass%, 80 mass%, 70 mass%, 60 mass%, 50 mass%, 40 mass%, 30 mass%, 20 mass%, or 10 mass%; the lower limit can be 1 mass%, 10 mass%, 20 mass%, 30 mass%, 40 mass%, 50 mass%, 60 mass%, 70 mass%, 80 mass%, or 90 mass%; and can be, for example, within the range of 1 to 99 mass%, or within the range of 1 to 90 mass%.

[0063] ((D)Wed) The emulsion composition of the present invention contains water. The water may be water constituting the aqueous phase of the emulsion composition (including pure water, ion-exchanged water, and tap water), or an aqueous solution.

[0064] (ratio of each component) In the present invention, the amount of component (B) per 1 part by mass of component (A) is preferably 0.0001 to 100 parts by mass, more preferably 0.0002 to 1 part by mass, and even more preferably 0.0003 to 0.025 parts by mass.

[0065] (Other ingredients) Lecithin can also be added to the emulsion composition of the present invention as needed. Lecithin is preferably mixed with the oil phase component. The addition of lecithin can further improve the effects of the present invention.

[0066] Lecithin is a fat-soluble component that contains phospholipids as its main component. The origin of the lecithin is not particularly limited, and the lecithin may be derived from plants such as oilseeds (e.g., soybeans, rapeseeds, and sunflowers), or may be derived from animals such as egg yolks. The lecithin that can be used in the present invention is preferably an edible lecithin that can be added to foods and beverages, or a lecithin that can be applied to the human body as a cosmetic. The lecithin that can be used in the present invention includes processed lecithins such as fractionated lecithin, enzymatically decomposed lecithin, and enzyme-treated lecithin.

[0067] Lecithin such as the processed lecithin is commercially available, and an example thereof is SLP-White (product name) manufactured by Tsuji Oil Mills Co., Ltd.

[0068] The lecithin is preferably used in an amount of 0.5 to 50% by mass, preferably 2 to 30% by mass, and more preferably 4 to 20% by mass relative to 100% by mass of the oil phase component (C). The lecithin is preferably contained in an amount of 0.01 to 10% by mass, preferably 0.05 to 5% by mass, and more preferably 0.1 to 2% by mass, relative to the total amount of the emulsion composition.

[0069] The emulsion composition of the present invention may also contain a water-soluble material. Examples of the water-soluble material include, but are not limited to, water-soluble vitamins (e.g., vitamin C), thickening polysaccharides, antioxidants, chelating agents, pH adjusters, excipients (e.g., dextrin), and alcohol. The water-soluble material is preferably added to water.

[0070] Examples of the alcohol are not particularly limited, and include polyhydric alcohols such as glycerin, diglycerin, triglycerin, polyglycerin, propylene glycol, dipropylene glycol, 1,3-butylene glycol, ethylene glycol, polyethylene glycol, sorbitol (D-sorbitol), xylitol, maltitol, erythritol, mannitol, xylose, glucose, lactose, mannose, oligotose, high fructose liquid sugar, and sucrose. Among these, polyhydric alcohols are preferred from the viewpoints of improving the flavor and increasing the storage stability of the emulsion composition of the present invention. The water-soluble material may be one type or a combination of two or more types.

[0071] The content of polyhydric alcohol in the emulsion composition of the present invention is not particularly limited and can be appropriately adjusted depending on the form of the emulsion composition. For example, in the form of a food emulsion preparation, the total content of polyhydric alcohol is preferably 1 to 99% by mass, more preferably 3 to 80% by mass, and even more preferably 5 to 60% by mass, based on the total amount of the emulsion composition. Furthermore, when glycerin is used as the polyhydric alcohol, the content of glycerin relative to the total amount of the emulsion composition of the present invention is not particularly limited, but is, for example, 5 to 80 mass%, preferably 10 to 70 mass%, more preferably 15 to 60 mass%, and even more preferably 20 to 55 mass%.

[0072] The emulsion composition of the present invention may contain, in addition to the components (A) to (D), lecithin, and polyhydric alcohol, any of the following substances, provided that the effects of the present invention are not impaired: nutritional components (amino acids, vitamins, minerals, etc.); alcohol; alcoholic beverages; salts; taste components (including saltiness, umami, etc.); fruit juice (including concentrates); fruit pulp; vegetables; vegetable juice (including concentrates); puree; extract; sweeteners (high-fructose glucose liquid sugar, glucose, sucrose, fructose, galactose, maltose, mannose, lactose, honey, starch syrup, etc.); sugar alcohols (sorbitol, xylitol, maltitol, reduced palatinose, lactitol, etc.); high-intensity sweeteners (sucralose, almond oil, etc.); It may contain one or more of the following: cesulfame K, aspartame, neotame, saccharin, saccharin sodium, thaumatin, stevia, glycyrrhizin, monellin, alitame, disodium glycyrrhizinate, etc.; bittering agents (iso-alpha acid, low hops, hexahops, tetrahops, etc.); acidulants; flavorings; coloring agents (safflower yellow, caramel color, gardenia color, fruit juice color, vegetable color, synthetic color, etc.); food additives (dietary fiber, excipients, pH adjusters, preservatives, antioxidants (vitamin C, vitamin E, extracted tocopherol, etc.), thickeners, stabilizers, thickening agents, etc.); active ingredients or additives of pharmaceuticals, quasi-drugs or cosmetics, etc.

[0073] (Physical Properties) In this specification, the D50 particle size of an emulsion composition refers to the particle size at which the cumulative volume-based particle frequency reaches 50% in the particle size distribution of the emulsion composition measured at 25°C using a laser diffraction particle size distribution analyzer. If the emulsion composition is not suitable for particle size distribution measurement as is, it is diluted with a solvent and uniformly dispersed before use. For example, the emulsion is diluted with a solvent to contain 10% by mass of the emulsion, and the emulsion is thoroughly suspended using a vortex mixer before particle size distribution measurement. When the emulsion composition of the present invention is an oil-in-water emulsion composition, water is used as the solvent.

[0074] In this specification, the content of particles having a specific particle size or larger refers to the cumulative volume-based frequency of particles having a specific particle size or larger, as measured by a laser diffraction particle size distribution analyzer at 25°C. If the emulsion composition has a concentration that is not suitable for measurement by the particle size distribution analyzer, it is diluted with a solvent. When the emulsion composition of the present invention is an oil-in-water emulsion composition, water is used as the solvent.

[0075] The content of coarse particles (particles with a particle diameter of 1.3 μm or more) in the emulsion composition of the present invention is preferably 3% or less, more preferably 2% or less, even more preferably 1% or less, and even more preferably 0.5% or less.

[0076] The content of particles having a particle size of 0.699 μm or more in the emulsion composition of the present invention is preferably 5% or less, more preferably 4% or less, even more preferably 3% or less, and even more preferably 2% or less.

[0077] (Application) The emulsion composition of the present invention can be used as an emulsified preparation for additive use, without being particularly limited, for applications such as coloring (including imparting turbidity or cloudiness), flavoring, providing nutrition or fortification, or imparting or modifying flavor.

[0078] The emulsion composition of the present invention can be used in the production of foods and beverages (drinks and foods), fragrances and cosmetics, pharmaceuticals, quasi-drugs, daily necessities, etc. Among these, it is preferably used in the production of foods and beverages or cosmetics, and more preferably used in the production of beverages from the viewpoint of reducing the effects of coarse particles on appearance, palatability, and stability.

[0079] The production of beverages using the emulsion composition of the present invention includes not only industrial beverage production, but also dilution of the emulsion composition of the present invention with water, syrup, carbonated water, alcohol, etc., or a mixture thereof, by a server or cup vending machine, or by a consumer or food and beverage provider.

[0080] In the present invention, the food product is not particularly limited, and examples thereof include patisseries such as jelly, pudding, bavarois, cake, cookies, and macaroons; frozen desserts such as ice cream, ice milk, lacto ice cream, and frozen desserts; dairy products such as yogurt, cream, butter, butter oil, cheese, concentrated whey, concentrated milk, skim concentrated milk, unsweetened condensed milk, unsweetened condensed skim milk, sweetened condensed milk, sweetened condensed skim milk, whole milk powder, skim milk powder, cream powder, whey powder, protein-concentrated whey powder, buttermilk powder, sweetened milk powder, modified milk powder, and modified liquid milk; cooked foods (stew, pasta cream croquettes, etc.); and seasonings such as sauces and dressings.

[0081] In the present invention, the beverage is not particularly limited, and examples thereof include soft drinks, alcoholic drinks, liquid preparations, and energy drinks.

[0082] In this specification, the term "soft drink" refers to beverages with an alcohol content of less than 1%, including, but not limited to, tea beverages (green tea, black tea, oolong tea, roasted green tea, duzhong tea, barley tea, pu-erh tea, brown rice tea, jasmine tea, buckwheat tea, multigrain tea, rooibos tea, yerba mate tea, etc.), coffee beverages, fruit juice beverages, vegetable beverages, mixed fruit juice beverages with vegetables, pulp beverages, carbonated beverages, malt beverages, lactic acid bacteria beverages, sports drinks, jelly drinks, cocoa beverages, chocolate drinks, dairy beverages, energy drinks, health drinks (medicinal drinks, health support drinks, functional soft drinks, sports drinks, vinegar drinks, malt drinks, etc.), plant-based beverages (grain beverages made primarily from rice, soy milk, or almonds, etc.), amazake (sweet sake), shruko (sweet red bean paste), soup beverages, and powdered soup beverages.

[0083] In this specification, an alcoholic beverage is a beverage with an alcohol content of 1% or more, and examples thereof include alcoholic beverages that are designated as "alcohol" under the Liquor Tax Act. Specific examples include alcoholic beverages (sake, synthetic sake), shochu, beer, fruit liquors (sweet fruit liquors such as fruit liquor and plum liquor), whiskeys (whiskey, brandy), spirits (spirits), liqueurs, happoshu (low-malt beer), other brewed alcoholic beverages (such as makgeolli), and miscellaneous alcoholic beverages (powdered alcoholic beverages, other miscellaneous alcoholic beverages).

[0084] In the present invention, the cosmetic product is not particularly limited, but examples thereof include fragrance products such as perfumes, basic cosmetics (facial cleansing cream, vanishing cream, cleansing cream, cold cream, massage cream, emulsion, lotion, beauty serum, pack, makeup remover, etc.), finishing cosmetics (foundation, talcum powder, lipstick, lip balm, blusher, eyeliner, mascara, eye shadow, eyebrow pencil, eye pack, nail enamel, enamel remover, etc.), hair cosmetics (pomade, Brilantine, setting lotion, hair stick, hair solid, hair oil, hair treatment, hair cream, hair tonic, hair liquid, hair spray, hair wax, bandolin, hair care products, hair dye, etc.), suntan cosmetics (tanning products, sunscreen products, etc.), hand cream, oral care products (mouthwash, toothpaste, etc.), and body care products (solid soap, hand soap, body soap, shampoo, rinse, conditioner, etc.).

[0085] In the present invention, the pharmaceuticals are not particularly limited, but examples thereof include oral pharmaceuticals such as tablets (e.g., sugar-coated tablets), granules, liquids, capsules, lozenges, and mouthwashes, and topical skin preparations such as poultices and ointments.

[0086] In the present invention, quasi-drugs include, but are not limited to, mouth fresheners, anti-armpit odor agents, aloe vera powder, hair growth agents (hair care agents), hair removers, hair dyes (including those used for dyeing, bleaching, or decoloring hair), permanent wave agents, sanitary cotton products (sanitary napkins, absorbent cotton, gauze, etc.), bath additives, medicated cosmetics (shampoo, conditioner, lotion, cream, emulsion, hand cream, cosmetic oil, shaving agent, sunscreen, pack, medicated soap, etc.), medicated toothpastes (including mouthwash, etc.), repellents, insecticides, rodenticides, disinfectants for soft contact lenses, throat fresheners, stomachic fresheners, vitamin supplements, calcium supplements, vitamin-containing health supplements, etc.

[0087] In the present invention, daily necessities are not particularly limited, but examples thereof include aroma products (air fresheners, deodorizers, fragrance oils, etc.); detergents such as laundry detergents, kitchen detergents, toilet detergents, bathroom detergents, fabric softeners, and clothing finishing agents; waxes; cleansers; bath additives; oral care products (toothbrushes, interdental cleaning tools, etc.); paper products (tissue paper, toilet paper, wet tissues, disposable diapers, etc.); and other scented goods.

[0088] (form) The emulsion composition of the present invention is usually in a liquid form (including a solution, emulsion, or dispersion) or a semi-solid form (including a paste or cream). Examples of emulsion compositions include those prepared by first dispersing or dissolving the emulsion composition of the present invention in an aqueous solvent and then reducing or removing the aqueous solvent by a standard method such as distillation or drying. Emulsion compositions prepared by such methods may be in a semi-solid form such as a paste, or in a solid form such as a powder or granules.

[0089] Furthermore, the emulsion composition of the present invention may be encapsulated in a capsule such as a soft capsule or a hard capsule, as long as the effects of the present invention are not impaired. Alternatively, the emulsion composition of the present invention may be in the form of a tablet. Such a tablet-shaped emulsion composition can be obtained by compressing the above-mentioned solid emulsion composition as is or after adding an excipient.

[0090] [Method of producing emulsion composition] The method for producing the emulsion composition of the present invention is to use (A) a mixture of an emulsion having a weight average molecular weight of 0.02×10 6 ~1.1×10 6 The method includes the steps of preparing a mixture containing the low molecular weight gum ghatti (B), a powder component (C), an oil phase component (D), and water, and emulsifying the mixture.

[0091] Examples of components (A) to (D) and their contents relative to the total amount of the emulsion composition are the same as those described above in the section [Emulsion composition].

[0092] (Step of preparing a mixture) In the step of preparing the mixture containing components (A) to (D), the components may be mixed in any order. The step of preparing a mixture containing the components (A) to (D) preferably includes a step of preparing a mixture containing low-molecular-weight gum ghatti and water. The step of preparing a mixture containing components (A) to (D) preferably includes a step of preparing a mixture containing a powder component and an oil phase component.

[0093] (emulsification treatment) The emulsification treatment may be carried out by employing a known or conventional mixing method, examples of which include methods using a mixer such as a homogenizer (e.g., a high-pressure homogenizer (such as a Gaulin homogenizer), a homodisper, a homomixer, a polytron agitator, a colloid mill, a nanomizer, or a microfluidizer), a propeller agitator, or a paddle agitator.

[0094] The conditions for the emulsification treatment are not particularly limited, but as an example, when using a high-pressure homogenizer, nanomizer, microfluidizer, etc., the pressure condition (pressure) is preferably 5 MPa or more, more preferably 10 MPa or more, and even more preferably 15 MPa or more. The upper limit of the pressure is not particularly limited, but is, for example, 200 MPa.

[0095] Furthermore, when using a propeller stirrer, homomixer, homodisper, or the like, the preferred rotation conditions (rotation speed) are 500 rpm or more, more preferably 800 rpm or more, even more preferably 2000 rpm or more, and even more preferably 5000 rpm or more. There is no particular upper limit to the rotation speed, but it is, for example, 12000 rpm.

[0096] (Other processes) The process for producing the emulsion composition of the present invention may further include, depending on the form of the composition to be produced, a dilution step with water, a heat sterilization step, a drying step (conventional water removal methods such as spray drying, freeze drying, the use of an azeotropic solvent, and the use of a water remover), a capsule filling step, a compression step, a container filling step, etc.

[0097] [Fine particle composition] The fine particle composition of the present invention has (A) a weight average molecular weight of 0.02×10 6 ~1.1×10 6 (B) a powder component; and (C) an oil phase component. The components (A) and (B) are present outside the component (C). That is, in the fine particle composition of the present invention, at least the component (C) constitutes the internal phase, and at least the components (A) and (B) constitute the external phase.

[0098] Components (A) to (C) are the same as those described above in the section [Emulsion composition].

[0099] In the fine particle composition of the present invention, it is preferred that the outer phase containing the components (A) and (B) coats the component (C).

[0100] The fine particle composition of the present invention may be a composition obtained by removing water from the above-described emulsion composition of the present invention. Water can be removed by a conventional method such as freeze drying or spray drying.

[0101] The details of the microparticle composition can be understood based on the above description of the emulsion composition of the present invention and common technical knowledge. [Aqueous composition]

[0102] The aqueous composition of the present invention contains the above-mentioned emulsion composition of the present invention or the above-mentioned fine particle composition of the present invention. The aqueous composition is not particularly limited, but examples thereof include foods and beverages, fragrances and cosmetics, pharmaceuticals, quasi-drugs, daily necessities, and semi-finished or intermediate products thereof, specific examples of which include those described in the section on uses in the above [Emulsion Composition] section.

[0103] The content of the emulsion composition of the present invention in the aqueous composition of the present invention can be set appropriately depending on the application, form, etc., and can be, for example, 0.001 mass% or more, 0.01 mass% or more, and 5 mass% or less, 1 mass% or less.

[0104] [Contains low molecular weight gum ghatti and powdered ingredients] The agent of the present invention has (A) a weight average molecular weight of 0.02 × 10 6 ~1.1×10 6 It contains (A) low molecular weight gum ghatti and (B) powder component.

[0105] ((A) component, (B) component) Specific examples of the low molecular weight gum ghatti as component (A) and the powder component as component (B) are the same as those described above in the section [Emulsion composition].

[0106] In the present invention, the amount of component (B) per 1 part by mass of component (A) is preferably 0.0001 to 100 parts by mass, more preferably 0.0002 to 1 part by mass, and even more preferably 0.0003 to 0.025 parts by mass.

[0107] (Other ingredients) In addition to component (A) and component (B), the agent of the present invention may contain one or more of the following, provided that the effects of the present invention are not impaired: nutritional components; alcohol; alcoholic beverages; salts; flavoring components; fruit juice; fruit pulp; vegetables; vegetable juice; puree; extract; sweetener; sugar alcohol; high-intensity sweetener; bittering agent; acidulant; flavoring; coloring agent; food additive; active ingredients or additives of pharmaceuticals, quasi-drugs, or cosmetics. Specific examples of these components include those listed under "Other components" in the "Emulsion composition" section.

[0108] (Application) The use of the agent of the present invention is not particularly limited, but it is preferably used to promote the refinement of emulsion particles, inhibit the formation of coarse particles, or improve emulsion stability.

[0109] In this specification, promoting the micronization of emulsion particles means making the particle size of emulsion particles smaller as measured by a laser diffraction particle size distribution analyzer. In this specification, "coarse particles" refers to particles having a particle diameter of 1.3 μm or more as measured by a laser diffraction particle size distribution analyzer. Furthermore, in this specification, "suppressing the formation of coarse particles" refers to reducing the proportion of particles having a particle diameter of 1.3 μm or more.

[0110] The agent of the present invention improves so-called "emulsifiability" by promoting the formation of fine emulsion particles or suppressing the formation of coarse particles, and therefore the agent of the present invention is also suitable for use in improving emulsifiability.

[0111] In this specification, improving emulsion stability means suppressing an increase in the particle size of emulsion particles over time and increasing the time for which emulsion particles remain suspended in the water phase in the case of an oil-in-water emulsion, or in the oil phase in the case of a water-in-oil emulsion.

[0112] The agent of the present invention can be used for all emulsion compositions containing oily components, but is preferably used in the preparation of the emulsion compositions described in the above section [Emulsion Composition].

[0113] (How to use) When the agent of the present invention is used in the preparation of an emulsion composition, the blending amount and steps in the preparation of the emulsion composition are in accordance with those described above in [Emulsion composition] and [Method for producing emulsion composition]. [Example]

[0114] The present invention will be explained in more detail below using examples. However, these examples do not limit the present invention. In the examples, "parts" and "%" mean "parts by mass" and "% by mass", respectively. In addition, the "*" mark in the text indicates that the product is manufactured by San-Ei Gen F.F.I. Co., Ltd., and the "※" mark in the text indicates that the product is a registered trademark of San-Ei Gen F.F.I. Co., Ltd.

[0115] Materials and Methods In the examples, the following materials, devices and measurement methods were used.

[0116] (1) Material (1-1) Gattigum Low molecular weight gum ghatti was prepared by decomposing GATIFOLIA RD(*), a type of gum ghatti, in an autoclave. Specifically, a mixture having the composition shown in Table 1 was dissolved at a temperature of 90°C. Then, thermal decomposition treatment was carried out using an autoclave at the treatment temperature and treatment time shown in Table 1 to prepare 8 mass% solutions of low molecular weight gum ghatti (Solutions 2 to 10). Solution 1 is an aqueous solution containing 8 mass% gum ghatti and was not subjected to heat treatment. The viscosity and weight-average molecular weight of the obtained 8 mass% gum ghatti solution were measured by the methods described below, and the results are also shown in Table 1.

[0117] [Table 1]

[0118] (1-2)(B) Powder component (B) Powder components used were myricitrin (Tokyo Chemical Industry Co., Ltd.), VC palmitate (L-ascorbic acid palmitate, Fujifilm Wako Pure Chemical Industries, Ltd.), phytosterol (β-sitosterol, Fujifilm Wako Pure Chemical Industries, Ltd.), carboxymethylcellulose sodium salt (Tokyo Chemical Industry Co., Ltd.), tricalcium phosphate, magnesium oxide, powdered hydrophobic silica (Wakogel C-300) (all Fujifilm Wako Pure Chemical Industries, Ltd.), and powdered polystyrene (Latex beads, polystyrene, 0.1 μm mean particle size, Sigma-Aldrich). All of these components were in the form of powders that were insoluble in oil phase and water.

[0119] (2) Equipment and analytical methods (2-1) Method for measuring the molecular weight and molecular weight distribution of gum ghatti The molecular weight (weight average molecular weight) and molecular weight distribution of gum ghatti were measured by GPC analysis under the following conditions. Detector: RI Mobile phase: 100mM K2SO4 Flow rate: 1.0ml / min Temperature: 40℃ Column: TSKgel GMPWXL 30cm (Guard PWXL) Injection: 100 μl Pullulan Standard: Shodex STANDARD P-82

[0120] (2-2) Measurement of particle size distribution and D50 particle size The particle size of the emulsified particles contained in the emulsion prepared in each test example was measured using a laser diffraction / scattering particle size distribution analyzer (LA-960, manufactured by Horiba, Ltd.). The emulsion prepared in each test example was diluted 10 times with ion-exchanged water and used as a measurement sample. The D50 particle size (volume basis) and the volume-based cumulative frequency of particles with a particle size of 0.699 μm or more (referred to as 0.699 μm↑, unit: %) were then calculated at 25°C.

[0121] (2-3) Method for measuring viscosity of liquid 80 g of liquid is placed in a 100 ml screw bottle (inner diameter: 3.7 cm), and the viscosity is measured using the following equipment and conditions. <Apparatus and conditions> B-type viscometer (Brookfield viscometer VISCOMETER-BM (Tokimec Co., Ltd.)): Rotor No. 2 Rotation speed: 60 rpm Measurement temperature: 20℃

[0122] Test Example 1: Preparation of an emulsion composition containing low molecular weight gum ghatti and various powdered ingredients Emulsion compositions having the formulations shown in Table 2 were prepared according to the following procedure. Examples 1-1 to 17 contain any one of Nos. 3 to 10 as a powder component in addition to low molecular weight gum ghatti. (1) First, a mixture of oil-soluble flavoring, lecithin, and powdered ingredients (mixture A) and a mixture of low molecular weight gum ghatti, water, and glycerin (mixture B) were prepared by stirring. Mixture A was added to mixture B and mixed by stirring. (2) The mixture obtained in (1) was treated with a high-pressure homogenizer at room temperature under conditions of 40 MPa x 4 times to prepare an emulsion composition.

[0123] The D50 particle size and 0.699 μm↑ were calculated from the particle size distribution of the resulting emulsion composition. The results are shown in Table 2. The D50 particle size of each Example was smaller than that of Comparative Example 1-1, which did not contain a powder component, demonstrating that the inclusion of a powder component in addition to low molecular weight gum ghatti promoted the refinement of emulsion particles. Furthermore, while particles with a particle size of 0.699 μm or larger were observed in Comparative Example 1-1, the formation of such coarse particles was suppressed in each Example. These results demonstrate that the inclusion of low molecular weight gum ghatti and a powder component improves the emulsifying properties of the emulsion composition.

[0124] Furthermore, in Comparative Examples 1-2 and 3, which were formulations in which low molecular weight gum ghatti was omitted from Examples 1-1 and 1-2, the D50 particle size was extremely large at 20 μm or more, and all of the emulsion particles had a particle size of 0.699 μm or more. Therefore, it was found that the effects of promoting the refinement of emulsion particles, inhibiting the formation of coarse particles, and improving emulsifiability, which could not be achieved with the powder component alone, were achieved only by combining low molecular weight gum ghatti with the powder component.

[0125] [Table 2]

[0126] [Test Example 2. Examination of the molecular weight of gum ghatti] Mixtures A and B were prepared according to the formulations in Table 3 using the same procedures and conditions as in Test Example 1, and then mixed and emulsified to prepare emulsion compositions containing gum ghatti and powder components with different weight-average molecular weights.

[0127] From the particle size distribution of the obtained emulsion composition, the D50 particle size and 0.699 μm↑ were calculated. The results are shown in Table 3. 6 ~1.1×10 6It was revealed that Examples 2-1 to 2-8, which used low molecular weight gum ghatti within this range, had significantly smaller D50 particle sizes and suppressed the formation of coarse particles, resulting in high emulsifying properties, compared to Comparative Examples 2-1 and 2-2, which used gum ghatti with a weight average molecular weight outside this range.

[0128] [Table 3]

[0129] [Test Example 3. Examination of oil phase components] According to the formulation in Table 4, lemon flavor, coffee flavor, and coenzyme Q were used as oil phase ingredients. 10 An emulsion composition containing low molecular weight gum ghatti and a powder component was prepared using the same procedures and conditions as in Test Example 1. Mixtures A and B were prepared, mixed, and emulsified using the same procedures and conditions as in Test Example 1 to prepare emulsion compositions containing low molecular weight gum ghatti and a powder component with different oil phase components.

[0130] The D50 particle size and 0.699 μm↑ were calculated from the particle size distribution of the obtained emulsion composition. The results are shown in Table 4. Compared with the corresponding comparative example that did not contain a powder component, each example had a significantly smaller D50 particle size and a reduced proportion of emulsified particles with a particle size of 0.699 μm or more. Therefore, it was revealed that the combination of low molecular weight gum ghatti and a powder component improves emulsifiability for a variety of oil phase components by promoting the refinement of emulsion particles and suppressing the formation of coarse particles.

[0131] Furthermore, the results of Comparative Example 3-4 and Example 3-4 revealed that the above-mentioned effect of improving emulsifying properties could be obtained even in the absence of lecithin.

[0132] [Table 4]

[0133] Test Example 4: Verification of storage stability of emulsion composition According to the formulations in Table 5, Mixtures A and B were prepared, mixed, and emulsified to prepare emulsion compositions containing low-molecular-weight gum ghatti and powdered components using the same procedures and conditions as in Test Example 1. The resulting emulsion compositions were subjected to a storage test at 60°C for one week or at 40°C for two months.

[0134] The particle size distribution of the emulsion composition was measured immediately after preparation and after each storage test, and the D50 particle size and 0.699 μm↑ were calculated. The results are shown in Table 5. The emulsion composition of Comparative Example 4-1 showed progressive coarsening of the emulsion particles during storage, resulting in poor storage stability. On the other hand, the emulsion compositions of Examples 4-1 and 4-2 showed almost no change in D50 particle size, and no formation of coarse particles with a particle size of 0.699 μm or more was observed. As described above, it was revealed that the inclusion of low-molecular-weight gum ghatti and a powder component improves the storage stability of the emulsion composition.

[0135] [Table 5]

Claims

1. (A) Weight average molecular weight is 0.02 × 10 ６ ~1.1 x 10 ６ (B) an oil phase component and a powder component insoluble in water, (C) an oil phase component, and (D) water, An emulsion composition, which is an emulsion preparation for addition, and in which the content of the component (A) is 4.0 mass% or more based on the total amount of the composition.

2. The emulsion composition according to claim 1, wherein the component (B) is 0.005 to 9.9% by mass.

3. 3. The emulsion composition according to claim 1, wherein the component (B) contains one or more selected from the group consisting of polyphenols, ascorbic acid fatty acid esters, sterols, water-insoluble polysaccharides, insoluble metal salts, inorganic salts, and organic polymer compounds.

4. The emulsion composition according to any one of claims 1 to 3, wherein the component (C) contains one or more selected from the group consisting of oil-soluble fragrances, oil-soluble colorants, oil-soluble physiologically active substances, oil-soluble resins, and oil-based solvents.

5. The emulsion composition according to any one of claims 1 to 4, which is in the form of a liquid, semi-solid, powder, granules, or tablet.

6. (A) Weight average molecular weight is 0.02 × 10 ６ ~1.1 x 10 ６ (B) an oil phase component and a powder component insoluble in water; (C) an oil phase component; and (D) a mixture containing water; emulsifying the mixture Including, The content of the component (A) is 4.0% by mass or more based on the total amount of the composition, A method for producing an emulsion composition which is an emulsified preparation for addition.

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