WO2011055708A1 - Isopropyl methyl phenol-containing liquid composition for oral cavity - Google Patents
Isopropyl methyl phenol-containing liquid composition for oral cavity Download PDFInfo
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- WO2011055708A1 WO2011055708A1 PCT/JP2010/069429 JP2010069429W WO2011055708A1 WO 2011055708 A1 WO2011055708 A1 WO 2011055708A1 JP 2010069429 W JP2010069429 W JP 2010069429W WO 2011055708 A1 WO2011055708 A1 WO 2011055708A1
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- isopropylmethylphenol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K31/05—Phenols
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/347—Phenols
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/02—Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
Definitions
- the present invention exerts a high osmotic bactericidal effect on periodontopathic biofilms, has no odor derived from isopropylmethylphenol, has a good refreshing feeling, low irritation, no stickiness in the oral cavity, and good
- the present invention relates to an isopropylmethylphenol-containing liquid oral composition that has a good feeling of use and has no turbidity or crystal precipitation over time during low-temperature storage and is excellent in stability over time.
- Isopropylmethylphenol is a nonionic bactericidal agent that is attracting attention as a bactericidal preparation with a high penetration bactericidal effect on periodontopathic biofilms. So far, various oral compositions using isopropylmethylphenol have been proposed (Patent Document 1: JP-A-62-204010, Patent Document 2: JP-A-1-305021, Patent Document) 3: Japanese Patent Laid-Open No. 7-48237, Patent Document 4: Japanese Patent Laid-Open No. 10-330230).
- Patent Document 1 JP-A-62-204010
- Patent Document 2 JP-A-1-305021
- Patent Document 3 Japanese Patent Laid-Open No. 7-48237
- Patent Document 4 Japanese Patent Laid-Open No. 10-330230.
- the composition containing isopropylmethylphenol has a disadvantage that the feeling of use is remarkably impaired because it has a peculiar taste, and improvement of this point has been demanded.
- Patent Document 5 Japanese Patent Laid-Open No. 2007-161613
- Patent Document 6 JP-A-2008-143825
- liquid oral compositions contain l-menthol as a main component of a fragrance for the purpose of imparting a refreshing sensation, but such a composition is not sufficient to eliminate the unpleasant taste derived from isopropylmethylphenol.
- l-menthol when the content of the surfactant is decreased to ensure the bactericidal power of isopropylmethylphenol, and the ethanol content is decreased to reduce the stimulation of ethanol, l-menthol crystals are precipitated during low-temperature storage, There was a problem that the appearance stability of the composition was significantly impaired.
- isopropylmethylphenol is an oil-soluble compound and hardly dissolves in water as it is, so it is solubilized by blending various surfactants and solvents such as ethanol.
- surfactants inactivate the active sites of the bactericides, so if the amount is increased, sufficient bactericidal power cannot be expressed, and the amount of surfactant is reduced to improve bactericidal power.
- the liquid becomes clouded with time at low and high temperatures, and the appearance stability of the composition is impaired.
- the composition for liquid oral cavity containing isopropylmethylphenol while exhibiting a high osmotic and bactericidal effect on periodontopathic biofilms due to isopropylmethylphenol, it suppresses the tasting taste derived from isopropylmethylphenol and
- the conventional technology does not satisfy all of these characteristics. Therefore, in the isopropylmethylphenol-containing liquid oral composition, the above-mentioned various problems are solved, and the high osmotic bactericidal effect on periodontopathic biofilms by isopropylmethylphenol is exhibited, and a good feeling without taste is good. Development of a liquid oral composition having both high storage stability with time is desired.
- Example 17 of Patent Document 11 Japanese Patent Application Laid-Open No. 2007-106728
- isopropylmethylphenol without ethanol was added, polyoxyethylene hydrogenated castor oil as a nonionic surfactant, glycerin, propylene glycol, menthol, and methylparaben.
- Example 22 of Patent Document 10 a combination of isopropylmethylphenol without ethanol and polyoxyethylene hydrogenated castor oil, glycerin, propylene glycol, polyethylene glycol, menthol, and methylparaben as a nonionic surfactant is described. Yes.
- the problem of taste taste derived from isopropylmethylphenol remains unsolved by these techniques.
- the present invention has been made in view of the above circumstances, exhibits a high penetrating and bactericidal effect on periodontopathic biofilms, has no odor derived from isopropylmethylphenol, has excellent usability, and is stable in appearance at low temperatures.
- An object of the present invention is to provide an isopropylmethylphenol-containing liquid oral composition containing no ethanol.
- a liquid oral composition containing isopropylmethylphenol as a bactericidal component, a nonionic surfactant, glycerin, propylene glycol, polyethylene glycol 1 or 2 or more kinds of wetting agents selected from sorbitol, 5 to 20% by mass of the total composition, 1-menthol and p-hydroxybenzoate, and 3-octanol and 3-octyl By blending one or more perfume ingredients selected from acetate, 3-octanone, and Fencon, with a composition that does not substantially contain ethanol, a high penetrating and bactericidal effect on periodontopathic biofilms is exhibited. It has a low feeling of taste derived from isopropylmethylphenol, has an excellent feeling of use, and is low Found that even excellent appearance stability during storage.
- the liquid oral composition containing isopropylmethylphenol solves the various problems described above by blending the specific components in combination.
- Excellent bactericidal power against oral bacteria such as periodontal disease bacteria in biofilms is exhibited, taste detriment derived from isopropylmethylphenol is suppressed, and refreshing feeling during use is good, due to ethanol etc.
- There is no irritation or stickiness in the oral cavity it is an excellent feeling of use, and it is possible to prevent turbidity over time due to insolubilization of isopropylmethylphenol during low-temperature storage and crystallization of l-menthol.
- Excellent appearance stability without crystal precipitation is obtained, and all these characteristics can be obtained.
- flavor component of the said component (E) has characteristic fragrance
- the use of the composition as a fragrance has been limited.
- the present inventors have surprisingly found that when the specific fragrance of the above component (E) is used in combination with isopropylmethylphenol in a liquid oral composition, it is surprisingly possible to sufficiently suppress the odor derived from isopropylmethylphenol. It was.
- the present invention provides the following liquid oral composition.
- Claim 1 In the liquid oral cavity composition containing isopropylmethylphenol, (A) a nonionic surfactant, (B) one or more wetting agents selected from glycerin, propylene glycol, polyethylene glycol, and sorbitol, (C) l-menthol, (D) paraoxybenzoic acid ester, (E) One or more perfume ingredients selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon are blended, and the total content of component (B) is 5 to 20% by mass of the total composition
- An isopropylmethylphenol-containing liquid oral composition characterized by being substantially free of ethanol.
- Claim 2 (A) a nonionic surfactant comprising polyoxyethylene hydrogenated castor oil having an average addition mole number of ethylene oxide of 40 to 100 moles and an alkyl group having 16 to 18 carbon atoms and an average addition mole number of ethylene oxide of 10 to 10
- Claim 3 The liquid oral composition of Claim 1 or 2 which mix
- Claim 4 The composition for liquid oral cavity according to claim 1, 2 or 3, wherein the ethanol content in the composition is 100 ppm or less.
- Claim 5 Component (A) is 0.1 to 1.0 mass%, Component (C) is 0.01 to 0.3 mass%, Component (D) is 0.01 to 0.3 mass%, and Component (E) is The liquid oral composition according to any one of claims 1 to 4, which is contained in an amount of 0.001 to 0.1% by mass.
- Claim 6 The liquid oral composition according to any one of claims 1 to 5, wherein the amount of water in the composition is 70% by mass or more.
- Claim 7 The liquid oral composition according to any one of claims 1 to 6, further comprising (F) anisaldehyde.
- Claim 8 The liquid oral composition according to claim 5, comprising 0.0001 to 0.1% by mass of component (F).
- the liquid oral composition of the present invention exhibits a high penetrating and bactericidal effect on periodontopathic biofilms, has a reduced taste of isopropylmethylphenol, has a good refreshing feeling during use, and is sticky in the oral cavity It has no feeling or irritation, has excellent usability, and has excellent appearance stability when stored at low temperatures, and is useful for the prevention or suppression of oral diseases such as periodontal disease.
- the liquid oral composition of the present invention contains isopropylmethylphenol as a bactericidal component, and (A) a nonionic surfactant, (B) glycerin, propylene glycol, polyethylene glycol. A total of 5 to 20% by weight of a wetting agent selected from sorbitol, (C) 1-menthol, (D) paraoxybenzoate, and (E) 3-octanol, 3-octyl acetate, 3- It contains a fragrance component selected from octanone and foncon, and is substantially free of ethanol.
- the isopropylmethylphenol used in the present invention is 4-isopropyl-3-methylphenol, and commercially available products such as those sold by Osaka Kasei Co., Ltd. can be used.
- the blending amount of isopropylmethylphenol is 0.01 to 0.2% by mass based on the total composition because the osmotic sterilization effect of periodontopathic biofilm is exhibited and isopropylmethylphenol itself has a strong taste.
- it is preferably 0.02 to 0.1% by mass, and if the blending amount is less than 0.01% by mass, the biofilm may not be sterilized and may exceed 0.2% by mass. And cloudiness, appearance stability may be impaired, and unpleasant taste may not be resolved.
- the component (A) nonionic surfactant used in the present invention has an average added mole number of ethylene oxide of 40 from the viewpoint of solubilizing power of isopropylmethylphenol, penetrating bactericidal power against periodontal pathogenic biofilm, and taste.
- Polyoxyethylene alkyl having about 100 to 100 moles, especially 60 to 100 moles of polyoxyethylene hydrogenated castor oil and an alkyl group having 16 to 18 carbon atoms and an average addition mole number of ethylene oxide of 10 to 40 moles, particularly 20 to 40 moles
- One or more selected from ethers are preferred.
- polyoxyethylene hydrogenated castor oil having an average addition mole number of ethylene oxide of 60 to 100 moles and carbon number of alkyl group in terms of penetrating bactericidal power against periodontal pathogenic biofilm and solubilization of isopropylmethylphenol. Is preferably 18 to 18 and an average addition mole number of ethylene oxide of 20 to 40 mol is preferably used. If the average added mole number of ethylene oxide of polyoxyethylene hydrogenated castor oil is less than 40 moles, precipitation may occur during low-temperature storage, and those exceeding 100 moles are generally not commercially available.
- the total amount of component (A) is preferably from 0.1 to 1.0% by mass of the total composition, more preferably from the viewpoint of osmotic sterilization power to periodontopathic biofilm and solubilization of isopropylmethylphenol. 0.3 to 0.7% by mass. If the blending amount is less than 0.1% by mass, it may become turbid at low temperatures and it may be difficult to maintain the appearance stability, and if it exceeds 1.0% by mass, the sterilizing power may be inferior.
- the wetting agent of component (B) is at least one selected from glycerin, propylene glycol, polyethylene glycol, and sorbitol.
- the polyethylene glycol preferably has an average molecular weight of 190 to 630.
- the average molecular weight refers to the average molecular weight described in the Cosmetic Raw Material Standard (2nd edition comment), and is an average measured by reacting with phthalic anhydride in pyridine to form a phthalic acid ester and titrating with sodium hydroxide.
- Molecular weight examples include polyethylene glycol 200 (average molecular weight 190 to 210), polyethylene glycol 300 (average molecular weight 280 to 320), polyethylene glycol 400 (average molecular weight 380 to 420), polyethylene glycol 600 (average molecular weight). 570-630), which can be used preferably.
- polyethylene glycol # 200 there may be a # between polyethylene glycol and the numerical value.
- component (B) can be used alone or in combination of two or more, it is preferable to use two or more from the viewpoint of taste at the time of use, and from the viewpoint of appearance stability such as turbidity at low temperature, 3 It is more preferable to use more than one species.
- a combination of two types a combination of glycerin and propylene glycol and glycerin and polyethylene glycol # 400 is preferable, and as a combination of three types, a combination of glycerin, propylene glycol and polyethylene glycol # 400 is preferable.
- the total amount of component (B) is 5 to 20% by mass of the whole composition, and is preferably 8 to 15% by mass in terms of appearance stability at low and high temperatures and usability of the composition.
- the blending amount is less than 5% by mass, it is difficult to maintain the appearance stability at low temperature, and white turbidity occurs. It is damaged, and usability and usability are impaired.
- l-menthol of component (C) l-menthol may be used as it is, but essential oils such as peppermint oil and Japanese mint oil containing 1-menthol and plant extracts may be used. May be used in combination.
- the blending amount of 1-menthol is preferably 0.01 to 0.3% by mass, particularly 0.05 to 0.2% by mass, from the viewpoint of ensuring a refreshing feeling. If the blending amount is less than 0.01% by mass, it may be difficult to satisfactorily ensure a refreshing feeling or taste may not be satisfactorily improved. If it exceeds 0.3% by mass, l-menthol at low temperature May not be prevented, or it may become cloudy at low temperatures and appearance stability may be impaired.
- component (D) paraoxybenzoic acid ester what is generally blended in an oral composition can be used.
- alkyl esters having 1 to 4 carbon atoms in the alkyl group such as methyl ester, ethyl ester, propyl ester, and butyl ester of paraoxybenzoic acid
- the blending amount of the paraoxybenzoic acid ester is preferably 0.01 to 0.3% by mass, particularly 0.05 to 0.2% by mass, based on the whole composition, from the viewpoint of preventing the precipitation of 1-menthol during low temperature storage. If the blending amount is less than 0.01% by mass, precipitation of l-menthol during low-temperature storage may not be prevented or it may become cloudy. If it exceeds 0.3% by mass, the bitterness cannot be suppressed, and paraoxybenzoate The bitterness derived from an acid ester becomes strong and may be inferior in usability.
- Component (E) is a fragrance component effective for masking tastes derived from isopropylmethylphenol, and one or more fragrance components selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon. It is. When combining two or more of the above fragrance components, a combination of 3-octanol and 3-octyl acetate and / or foncon is preferred. Even if octanol is used, 1-octanol, which is a general fragrance for liquid oral compositions, is not suitable as a fragrance component according to the present invention because it cannot satisfactorily mask hate derived from isopropylmethylphenol. .
- 3-octanol is a product of Shiono Koryo Co., Ltd.
- 3-octyl acetate and 3-octanone are products of Inoue Kako Co., Ltd. You can use products from Eiko Co., Ltd.
- the total amount of component (E) is not particularly limited, but is 0.0001 to 0.1% by mass, particularly 0.0005 to 0.05% by mass, especially 0.001 to 0.02%, based on the total amount of the composition.
- the mass% is desirable. If the blending amount is less than 0.0001% by mass, the taste due to isopropylmethylphenol cannot be masked, and the feeling of use may be inferior. If it exceeds 0.1% by mass, the flavor of the fragrance component itself is too strong. May occur.
- blend anisaldehyde as a component (F)
- the masking effect with respect to an odor taste derived from isopropylmethylphenol is improved by adding anisaldehyde in addition to the fragrance
- anisaldehyde commercially available products such as products of Taiyo Perfume Co., Ltd. can be used.
- the blending amount is preferably 0.0001 to 0.1% by mass, particularly 0.001 to 0.02% by mass, based on the total amount of the composition. If the blending amount is less than 0.0001% by mass, the masking effect due to isopropylmethylphenol may not be sufficiently enhanced, and if it exceeds 0.1% by mass, anisaldehyde itself as in the case of component (B).
- the flavor may be so strong that it may cause an unpleasant taste.
- the total blending amount of component (E) and component (F) is 0.0002-0. It is desirable that the content be 15% by mass, particularly 0.002 to 0.03% by mass. If the total blending amount is less than 0.0002% by mass, the masking effect of unpleasant taste may not be sufficiently improved, and if it exceeds 0.15% by mass, the flavors of the components (E) and (F) themselves are too strong. May cause disgusting.
- a combination of 3-octanol and anisaldehyde is particularly preferable, and thereby an especially excellent masking effect is exhibited against the tasting taste derived from isopropylmethylphenol.
- a solvent such as purified water is blended.
- the amount of water is 70% by mass or more of the total amount of the composition, and further the feeling of use. From this point, the content is preferably 75% by mass or more.
- the upper limit value of the water content can be set to an amount that makes the total of the above components (A) to (F) and the lower limit compounding amount of isopropylmethylphenol 100% by mass, that is, 94.8698% by mass.
- the liquid oral composition of the present invention is substantially free of ethanol, and when ethanol is blended, irritation occurs, taste cannot be satisfactorily suppressed, and the feeling of use cannot be improved.
- substantially free of ethanol means that the amount of ethanol in the composition is preferably 100 ppm or less, more preferably 50 ppm or less, particularly preferably 10 ppm or less, based on the total composition. The value is 0 ppm.
- the liquid oral composition of the present invention contains no ethanol. However, since the raw material-derived ethanol may be contained in a small amount in the fragrance compounded in the composition, these reasons are taken into consideration. In addition to ethanol contained in trace amounts in perfume and the like, it does not contain ethanol.
- composition for liquid oral cavity of the present invention can be prepared and applied as a mouthwash, liquid toothpaste, etc., and as a method of application, a method of brushing with a toothbrush or the like after mouthwash may be adopted as necessary.
- an optional component appropriate for the dosage form can be blended as necessary within a range not impeding the effects of the present invention.
- thickeners, binders, pH adjusters, preservatives, sweeteners, fragrances, surfactants, active ingredients, colorants and the like other than the above components can be contained.
- sugar alcohols such as butylene glycol, ethylene glycol, xylit, maltite, lactit, and other polyhydric alcohols other than the above-described component (B) can be used as long as the effects of the present invention are not impaired. In this case, the range of 0.1 to 10% is preferable.
- Binders include cellulose binders such as sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxymethyl ethyl cellulose, methyl cellulose, xanthan gum, carrageenan, guar gum, sodium alginate, cationized cellulose, montmorillonite, gelatin , Sodium polyacrylate and the like can be mentioned, and these can be used alone or in combination of two or more.
- the amount of the binder is usually 0.001 to 0.5% by mass with respect to the total amount of the composition.
- pH adjusters examples include phthalic acid, phosphoric acid, citric acid, succinic acid, acetic acid, fumaric acid, malic acid and carbonic acid and their potassium, sodium and ammonium salts, ribonucleic acid and its salts, and sodium hydroxide. Or a combination of phosphoric acid, citric acid and their sodium salts is particularly preferred.
- the liquid oral composition of the present invention preferably adjusts the pH at 25 ° C. to 5.5 to 7.5.
- sodium dihydrogen phosphate and sodium monohydrogen phosphate are used.
- benzoates such as sodium benzoate, alkyldiaminoethylglycine hydrochloride, potassium sorbate and the like can be contained.
- sweeteners include saccharin sodium, aspartame, stevioside, stevia extract, paramethoxycinnamic aldehyde, neohesperidyl dihydrochalcone, and perilartin.
- fragrances such as eucalyptus oil, winter green oil, cassia oil, clove oil, thyme oil, sage oil, basil oil, cardamom oil, coriander oil, Spearmint oil, orange oil, lemon oil, mandarin oil, lime oil, grapefruit oil, coconut oil, sweetie oil, lavender oil, rosemary oil, laurel oil, camomile oil, caraway oil, marjoram oil, celery oil, bay oil, Origanum oil, pine needle oil, neroli oil, lemongrass oil, rose oil, jasmine oil, patchouli oil, Iris concrete, rose absolute, orange flower absolute, vanilla absolute, mango absolute, patchoulia absolute, ginger oleoresin, pepper pepper Natural fragrances such as oresin, capsicum oleoresin, pepper extract, and processing of these natural fragrances (front reservoir cut, rear reservoir cut, fractional distillation, liquid-liquid extraction, essence, powder fragrance, etc.) Fragrances and limonen
- fragrance materials used in the composition can be used in combination.
- the blending amount of these fragrance materials is not particularly limited, but it is preferable to use 0.000001 to 1% by mass in the composition. Further, as the flavoring fragrance using the fragrance material, it is preferable to use 0.1 to 2.0% by mass in the composition.
- surfactant in addition to the nonionic surfactant as the component (A), other surfactants usually used for oral compositions may be blended.
- anionic surfactant sodium alkylsulfate such as sodium lauryl sulfate and sodium myristyl sulfate, acyl sarcosine salts such as sodium lauroyl sarcosine sodium and myristoyl sarcosine sodium, sodium dodecylbenzenesulfonate, sodium hydrogenated coconut fatty acid monoglyceride monosulfate, Examples thereof include N-acyl glutamate such as sodium lauryl sulfoacetate and sodium N-palmitoyl glutamate, sodium N-methyl-N-acyl taurate, sodium N-methyl-N-acylalanine, sodium ⁇ -olefin sulfonate and the like.
- amphoteric surfactant lauryldimethylaminoacetic acid betaine, N-coconut oil fatty acid acyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, and the like are used, but are not limited thereto.
- the blending amount is preferably 0.01 to 5% by mass of the entire composition, and can be used within a range not impeding the effects of the present invention.
- active ingredients in addition to isopropylmethylphenol, other active ingredients such as fluorine compounds such as sodium fluoride, sodium monofluorophosphate and tin fluoride, enzymes such as dextranase and mutanase, and normal phosphate Water-soluble phosphate compounds such as potassium salt and sodium salt, tranexamic acid, epsilon-aminocaproic acid, allantoinchlorohydroxyaluminum, hinokitiol, lauroyl sarcosine sodium, ascorbic acid, dl-tocopherol acetate, dihydrocholesterol, ⁇ -bisabolol, chlorhexidine salts, Azulene, glycyrrhetin, glycyrrhetinic acid, copper chlorophyllin sodium, chlorophyll, chelating phosphate compounds such as glycerophosphate, copper compounds such as copper gluconate, Aluminum acid, strontium chloride, potassium
- water-soluble pigments such as Blue No. 1, Green No. 3, Yellow No. 4 (FD & C, Yellow No. 5 (19140), Red No. 105, Red No. 106 and the like can be added.
- PET polyethylene terephthalate
- glass polypropylene
- polyethylene can be used as the container for storing the liquid oral cavity composition of the present invention.
- PET and glass is preferred in terms of suppressing adsorption of nonionic fungicides and fragrances. preferable.
- isopropylmethylphenol manufactured by Osaka Kasei Co., Ltd.
- polyoxyethylene 60) hydrogenated castor oil
- polyoxyethylene 30) cetyl ether
- Glycerin 85% by mass, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.
- propylene glycol manufactured by Asahi Glass Co., Ltd.
- polyethylene glycol # 400 manufactured by Lion Chemical Co., Ltd.
- sorbitol manufactured by Towa Kasei Kogyo Co., Ltd.
- l-menthol takasago fragrance
- Ethanol manufactured by Nippon Alcohol Sales Co., Ltd.
- POE polyoxyethylene
- PEG polyethylene glycol
- % shown below means mass% unless otherwise specified.
- the component whose form is aqueous solution all showed the compounding quantity of pure part conversion also including the table
- fragrances fragrance compositions A to I having the compositions shown in Tables 8 and 9 were prepared and blended.
- Example 1 Liquid oral compositions having the compositions shown in Tables 1 to 7 were prepared by a conventional method, and the penetration sterilizing effect on the model biofilm was evaluated by the following method. The results are shown in Tables 1-7. In Examples 1 to 41 in Tables 1 to 3 and Examples 42 to 84 in Tables 5 to 7, similar results were obtained even when the fragrance composition A was replaced with any of the fragrance compositions B to I. It was.
- the number of viable bacteria may fluctuate somewhat depending on the culture conditions, when artificial saliva is used instead of the test drug, it is about 8.5 log cfu (colony forming units / HA plate), less than 6.0 log cfu / HA plate In this case, it was judged that the biofilm sterilizing power was high.
- Evaluation criteria for model biofilm sterilization effect ⁇ : Less than 5.0 log cfu / HA plate ⁇ : More than 5.0 log cfu / HA plate to 6.0 log cfu / HA Less than plate ⁇ : 6.0 log cfu / HA plate or more to 7.0 log cfu / HA Less than board x: 7.0 log cfu / HA board or more
- Example 2 The liquid oral compositions having the compositions shown in Tables 1 to 7 were evaluated for appearance stability and crystal precipitation by the following methods. The results are shown in Tables 1-7. Appearance stability, crystal precipitation: Samples shown in Tables 1 to 7 were filled with 450 mL of a 450 mL filled PET container, and appearance stability after 3 months storage in a -5 ° C. constant temperature bath and crystal precipitation were visually determined according to the following criteria.
- Appearance stability evaluation standard A No change is observed compared to the initial product. ⁇ : A slight amount of orientation is recognized, but there is no problem. ⁇ : Slight turbidity is observed. X: Considerable cloudiness or precipitate is observed.
- Crystal Precipitation Evaluation Criteria A There is no difference from the initial product, and no crystal deposition is observed. ⁇ : A very small amount of precipitate is observed. (Triangle
- Refreshing feeling after mouthwash 4 A refreshing feeling was recognized. 3: A slight refreshing feeling was recognized. 2: A refreshing feeling was slightly recognized. 1: A refreshing feeling was not recognized.
- the fragrance composition is as shown in Tables 8 and 9.
- the following fragrance composition does not contain 3-octanol, 3-octyl acetate, 3-octanone, Fencon, anisaldehyde, or l-menthol. Furthermore, paraoxybenzoic acid esters are not included.
Abstract
Description
しかしながら、イソプロピルメチルフェノールを含有する組成物は、特有な嫌味を有するために使用感を著しく損なうという欠点が生じ、この点の改善が求められていた。 Isopropylmethylphenol is a nonionic bactericidal agent that is attracting attention as a bactericidal preparation with a high penetration bactericidal effect on periodontopathic biofilms. So far, various oral compositions using isopropylmethylphenol have been proposed (Patent Document 1: JP-A-62-204010, Patent Document 2: JP-A-1-305021, Patent Document) 3: Japanese Patent Laid-Open No. 7-48237, Patent Document 4: Japanese Patent Laid-Open No. 10-330230).
However, the composition containing isopropylmethylphenol has a disadvantage that the feeling of use is remarkably impaired because it has a peculiar taste, and improvement of this point has been demanded.
また、イソプロピルメチルフェノールの殺菌力を確保するために、界面活性剤の含有量を減らし、エタノールの刺激を低減するためにエタノール含有量を少なくすると、低温保存においてl-メントールの結晶が析出し、組成物の外観安定性が著しく損なわれるという問題があった。なお、カチオン性殺菌剤とl-メントールを含有し、エタノール含有量が少ない組成においては、パラオキシ安息香酸メチルとパラオキシ安息香酸エチルとを併用して配合するとl-メントールの結晶析出を防止できることは特許文献7(特開2007-31394号公報)に提案されている。 In general, liquid oral compositions contain l-menthol as a main component of a fragrance for the purpose of imparting a refreshing sensation, but such a composition is not sufficient to eliminate the unpleasant taste derived from isopropylmethylphenol.
In addition, when the content of the surfactant is decreased to ensure the bactericidal power of isopropylmethylphenol, and the ethanol content is decreased to reduce the stimulation of ethanol, l-menthol crystals are precipitated during low-temperature storage, There was a problem that the appearance stability of the composition was significantly impaired. In addition, in a composition containing a cationic fungicide and l-menthol, and having a low ethanol content, it is patented that, when methyl paraoxybenzoate and ethyl paraoxybenzoate are used in combination, crystal precipitation of l-menthol can be prevented. This is proposed in Document 7 (Japanese Patent Laid-Open No. 2007-31394).
なお、製剤中の含水率を40%以下にすることがフェノール系殺菌剤の安定性に有効であること(特許文献8:特開平11-322554号公報参照)、水分量をポリオール類配合量の半分以下に調整して配合することが非水溶性有効成分の経時での残存率低下の防止に有効であること(特許文献9:特開2001-199854号公報参照)が提案されているが、これら技術も未だ十分とは言えなかった。 In order to make up isopropylmethylphenol so as to compensate for the lowering of solubilizing power due to low concentrations of surfactants and not containing ethanol, the incorporation of a wetting agent is also effective in solubilizing oil-soluble compounds. However, when the wetting agent is blended at a high concentration, there is a problem that the feeling of use becomes worse due to the bitterness of the wetting agent itself and the stickiness after use.
In addition, it is effective for the stability of the phenolic fungicide that the water content in the preparation is 40% or less (see Patent Document 8: JP-A-11-322554), and the water content is the amount of the polyols. It has been proposed that blending by adjusting to less than half is effective in preventing a decrease in the residual ratio of the water-insoluble active ingredient over time (see Patent Document 9: JP-A-2001-199854), These technologies are still not enough.
従って、イソプロピルメチルフェノール含有液体口腔用組成物において、上記の種々の課題を解決して、イソプロピルメチルフェノールによる歯周病原性バイオフィルムに対する高い浸透殺菌効果を発揮すると共に、嫌味のない良好な使用感と高い経時保存安定性とを兼ね備えた液体口腔用組成物の開発が望まれる。 Thus, in the composition for liquid oral cavity containing isopropylmethylphenol, while exhibiting a high osmotic and bactericidal effect on periodontopathic biofilms due to isopropylmethylphenol, it suppresses the tasting taste derived from isopropylmethylphenol and However, the conventional technology does not satisfy all of these characteristics.
Therefore, in the isopropylmethylphenol-containing liquid oral composition, the above-mentioned various problems are solved, and the high osmotic bactericidal effect on periodontopathic biofilms by isopropylmethylphenol is exhibited, and a good feeling without taste is good. Development of a liquid oral composition having both high storage stability with time is desired.
請求項1:
イソプロピルメチルフェノールを含有する液体口腔用組成物に、
(A)ノニオン性界面活性剤、
(B)グリセリン、プロピレングリコール、ポリエチレングリコール、ソルビトールから選ばれる1種以上の湿潤剤、
(C)l-メントール、
(D)パラオキシ安息香酸エステル、
(E)3-オクタノール、3-オクチルアセテート、3-オクタノン、フェンコンから選ばれる1種以上の香料成分
を配合してなり、成分(B)の合計含有量が組成物全体の5~20質量%であり、実質的にエタノールを含有しないことを特徴とするイソプロピルメチルフェノール含有液体口腔用組成物。
請求項2:
(A)ノニオン性界面活性剤が、エチレンオキサイドの平均付加モル数が40~100モルのポリオキシエチレン硬化ヒマシ油及びアルキル基の炭素数が16~18でエチレンオキサイドの平均付加モル数が10~40モルのポリオキシエチレンアルキルエーテルから選ばれる1種以上である請求項1記載の液体口腔用組成物。
請求項3:
成分(B)として、グリセリンとプロピレングリコール、グリセリンとポリエチレングリコール、又はグリセリンとプロピレングリコールとポリエチレングリコールとを組み合わせて配合した請求項1又は2記載の液体口腔用組成物。
請求項4:
組成物中のエタノール含有量が100ppm以下である請求項1、2又は3記載の液体口腔用組成物。
請求項5:
成分(A)を0.1~1.0質量%、成分(C)を0.01~0.3質量%、成分(D)を0.01~0.3質量%、成分(E)を0.001~0.1質量%含有する請求項1乃至4のいずれか1項記載の液体口腔用組成物。
請求項6:
組成物中の水分量が70質量%以上である請求項1乃至5のいずれか1項記載の液体口腔用組成物。
請求項7:
更に、(F)アニスアルデヒドを含有する請求項1乃至6のいずれか1項記載の液体口腔用組成物。
請求項8:
成分(F)を0.0001~0.1質量%含有する請求項5記載の液体口腔用組成物。 Accordingly, the present invention provides the following liquid oral composition.
Claim 1:
In the liquid oral cavity composition containing isopropylmethylphenol,
(A) a nonionic surfactant,
(B) one or more wetting agents selected from glycerin, propylene glycol, polyethylene glycol, and sorbitol,
(C) l-menthol,
(D) paraoxybenzoic acid ester,
(E) One or more perfume ingredients selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon are blended, and the total content of component (B) is 5 to 20% by mass of the total composition An isopropylmethylphenol-containing liquid oral composition characterized by being substantially free of ethanol.
Claim 2:
(A) a nonionic surfactant comprising polyoxyethylene hydrogenated castor oil having an average addition mole number of ethylene oxide of 40 to 100 moles and an alkyl group having 16 to 18 carbon atoms and an average addition mole number of ethylene oxide of 10 to 10 The liquid oral composition according to claim 1, wherein the composition is one or more selected from 40 moles of polyoxyethylene alkyl ether.
Claim 3:
The liquid oral composition of Claim 1 or 2 which mix | blended glycerin and propylene glycol, glycerin and polyethylene glycol, or glycerin, propylene glycol, and polyethylene glycol as a component (B).
Claim 4:
The composition for liquid oral cavity according to claim 1, 2 or 3, wherein the ethanol content in the composition is 100 ppm or less.
Claim 5:
Component (A) is 0.1 to 1.0 mass%, Component (C) is 0.01 to 0.3 mass%, Component (D) is 0.01 to 0.3 mass%, and Component (E) is The liquid oral composition according to any one of claims 1 to 4, which is contained in an amount of 0.001 to 0.1% by mass.
Claim 6:
The liquid oral composition according to any one of claims 1 to 5, wherein the amount of water in the composition is 70% by mass or more.
Claim 7:
The liquid oral composition according to any one of claims 1 to 6, further comprising (F) anisaldehyde.
Claim 8:
The liquid oral composition according to claim 5, comprising 0.0001 to 0.1% by mass of component (F).
ポリオキシエチレン硬化ヒマシ油のエチレンオキサイドの平均付加モル数が40モル未満では、低温保存時に析出が生じる場合があり、100モルを超えるものは一般に市販されていない。
ポリオキシエチレンアルキルエーテルのエチレンオキサイドの平均付加モル数が10モル未満では、上記と同様に低温保存時に析出が生じる場合があり、40モルを超えるものは一般には市販されていない。また、上記ポリオキシエチレンアルキルエーテルにおいて、アルキル基の炭素数が16未満では、苦味や刺激が強く、18を超えるものは低温又は高温での外観安定性に劣る場合がある。 The component (A) nonionic surfactant used in the present invention has an average added mole number of ethylene oxide of 40 from the viewpoint of solubilizing power of isopropylmethylphenol, penetrating bactericidal power against periodontal pathogenic biofilm, and taste. Polyoxyethylene alkyl having about 100 to 100 moles, especially 60 to 100 moles of polyoxyethylene hydrogenated castor oil and an alkyl group having 16 to 18 carbon atoms and an average addition mole number of ethylene oxide of 10 to 40 moles, particularly 20 to 40 moles One or more selected from ethers are preferred. Among these, polyoxyethylene hydrogenated castor oil having an average addition mole number of ethylene oxide of 60 to 100 moles and carbon number of alkyl group in terms of penetrating bactericidal power against periodontal pathogenic biofilm and solubilization of isopropylmethylphenol. Is preferably 18 to 18 and an average addition mole number of ethylene oxide of 20 to 40 mol is preferably used.
If the average added mole number of ethylene oxide of polyoxyethylene hydrogenated castor oil is less than 40 moles, precipitation may occur during low-temperature storage, and those exceeding 100 moles are generally not commercially available.
When the average addition mole number of ethylene oxide of polyoxyethylene alkyl ether is less than 10 moles, precipitation may occur during low temperature storage as described above, and those exceeding 40 moles are generally not commercially available. Moreover, in the said polyoxyethylene alkyl ether, when carbon number of an alkyl group is less than 16, bitterness and irritation | stimulation are strong, and the thing exceeding 18 may be inferior to the external appearance stability in low temperature or high temperature.
平均分子量190~630のポリエチレングリコールとしては、ポリエチレングリコール200(平均分子量190~210)、ポリエチレングリコール300(平均分子量280~320)、ポリエチレングリコール400(平均分子量380~420)、ポリエチレングリコール600(平均分子量570~630)が該当し、これらを好適に使用できる。商品によっては、例えばポリエチレングリコール#200のように、ポリエチレングリコールと数値の間に#がつく場合がある。 Here, the polyethylene glycol preferably has an average molecular weight of 190 to 630. The average molecular weight refers to the average molecular weight described in the Cosmetic Raw Material Standard (2nd edition comment), and is an average measured by reacting with phthalic anhydride in pyridine to form a phthalic acid ester and titrating with sodium hydroxide. Molecular weight.
Examples of polyethylene glycol having an average molecular weight of 190 to 630 include polyethylene glycol 200 (average molecular weight 190 to 210), polyethylene glycol 300 (average molecular weight 280 to 320), polyethylene glycol 400 (average molecular weight 380 to 420), polyethylene glycol 600 (average molecular weight). 570-630), which can be used preferably. Depending on the product, for example, polyethylene glycol # 200, there may be a # between polyethylene glycol and the numerical value.
l-メントールの配合量は、清涼感確保の点で、0.01~0.3質量%、特に0.05~0.2質量%が好ましい。配合量が0.01質量%未満の場合、清涼感を満足に確保することが難しくなったり、嫌味が満足に改善されない場合があり、0.3質量%を超えると、低温でのl-メントールの析出を防止できなかったり、低温で白濁し外観安定性が損なわれる場合がある。 As l-menthol of component (C), l-menthol may be used as it is, but essential oils such as peppermint oil and Japanese mint oil containing 1-menthol and plant extracts may be used. May be used in combination.
The blending amount of 1-menthol is preferably 0.01 to 0.3% by mass, particularly 0.05 to 0.2% by mass, from the viewpoint of ensuring a refreshing feeling. If the blending amount is less than 0.01% by mass, it may be difficult to satisfactorily ensure a refreshing feeling or taste may not be satisfactorily improved. If it exceeds 0.3% by mass, l-menthol at low temperature May not be prevented, or it may become cloudy at low temperatures and appearance stability may be impaired.
パラオキシ安息香酸エステルの配合量は、低温保存でのl-メントールの析出防止の点で、組成物全体の0.01~0.3質量%、特に0.05~0.2質量%が好ましい。配合量が0.01質量%未満では、低温保存でのl-メントールの析出を防止できなかったり、白濁する場合があり、0.3質量%を超えると、苦味を抑制できなかったり、パラオキシ安息香酸エステル由来の苦味が強くなって、使用感に劣る場合がある。 As component (D) paraoxybenzoic acid ester, what is generally blended in an oral composition can be used. Specifically, alkyl esters having 1 to 4 carbon atoms in the alkyl group, such as methyl ester, ethyl ester, propyl ester, and butyl ester of paraoxybenzoic acid, can be used.
The blending amount of the paraoxybenzoic acid ester is preferably 0.01 to 0.3% by mass, particularly 0.05 to 0.2% by mass, based on the whole composition, from the viewpoint of preventing the precipitation of 1-menthol during low temperature storage. If the blending amount is less than 0.01% by mass, precipitation of l-menthol during low-temperature storage may not be prevented or it may become cloudy. If it exceeds 0.3% by mass, the bitterness cannot be suppressed, and paraoxybenzoate The bitterness derived from an acid ester becomes strong and may be inferior in usability.
上記香料成分の2種以上を組み合わせる場合は、3-オクタノールと3-オクチルアセテート及び/又はフェンコンとの組み合わせが好適である。
なお、オクタノールであっても、液体口腔用組成物の香料として一般的な1-オクタノールは、目的とするイソプロピルメチルフェノール由来の嫌みのマスキングが満足にできないため、本発明にかかわる香料成分として相応しくない。 Component (E) is a fragrance component effective for masking tastes derived from isopropylmethylphenol, and one or more fragrance components selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon. It is.
When combining two or more of the above fragrance components, a combination of 3-octanol and 3-octyl acetate and / or foncon is preferred.
Even if octanol is used, 1-octanol, which is a general fragrance for liquid oral compositions, is not suitable as a fragrance component according to the present invention because it cannot satisfactorily mask hate derived from isopropylmethylphenol. .
なお、成分(E)と成分(F)との組み合わせとしては、特に3-オクタノール及びアニスアルデヒドとの組み合わせが好ましく、これによりイソプロピルメチルフェノール由来の嫌味に対して、とりわけ優れたマスキング効果が発揮される。 (F) When anisaldehyde is blended, the total blending amount of component (E) and component (F) is 0.0002-0. It is desirable that the content be 15% by mass, particularly 0.002 to 0.03% by mass. If the total blending amount is less than 0.0002% by mass, the masking effect of unpleasant taste may not be sufficiently improved, and if it exceeds 0.15% by mass, the flavors of the components (E) and (F) themselves are too strong. May cause disgusting.
As the combination of component (E) and component (F), a combination of 3-octanol and anisaldehyde is particularly preferable, and thereby an especially excellent masking effect is exhibited against the tasting taste derived from isopropylmethylphenol. The
本発明の液体口腔用組成物には、上記成分に加えて、その剤型に応じて適宜な任意成分を本発明の効果を妨げない範囲で必要に応じて配合することができる。例えば、上記成分以外の粘稠剤、粘結剤、pH調整剤、防腐剤、甘味剤、香料、界面活性剤、有効成分、着色料等を含有できる。 The composition for liquid oral cavity of the present invention can be prepared and applied as a mouthwash, liquid toothpaste, etc., and as a method of application, a method of brushing with a toothbrush or the like after mouthwash may be adopted as necessary. .
In the liquid oral cavity composition of the present invention, in addition to the above components, an optional component appropriate for the dosage form can be blended as necessary within a range not impeding the effects of the present invention. For example, thickeners, binders, pH adjusters, preservatives, sweeteners, fragrances, surfactants, active ingredients, colorants and the like other than the above components can be contained.
特に、本発明の液体口腔用組成物は、25℃におけるpHを5.5~7.5に調整することが好ましく、この付近のpH調整剤として、リン酸二水素ナトリウムとリン酸一水素ナトリウムあるいはクエン酸とクエン酸ナトリウムを組み合わせたものを用いることが好ましい。 Examples of pH adjusters include phthalic acid, phosphoric acid, citric acid, succinic acid, acetic acid, fumaric acid, malic acid and carbonic acid and their potassium, sodium and ammonium salts, ribonucleic acid and its salts, and sodium hydroxide. Or a combination of phosphoric acid, citric acid and their sodium salts is particularly preferred.
In particular, the liquid oral composition of the present invention preferably adjusts the pH at 25 ° C. to 5.5 to 7.5. As a pH adjuster in the vicinity thereof, sodium dihydrogen phosphate and sodium monohydrogen phosphate are used. Alternatively, it is preferable to use a combination of citric acid and sodium citrate.
上記成分(A)以外の界面活性剤を配合する場合、その配合量は組成物全体の0.01~5質量%が好ましく、本発明の効果を妨げない範囲で使用することができる。 As the surfactant, in addition to the nonionic surfactant as the component (A), other surfactants usually used for oral compositions may be blended. For example, as an anionic surfactant, sodium alkylsulfate such as sodium lauryl sulfate and sodium myristyl sulfate, acyl sarcosine salts such as sodium lauroyl sarcosine sodium and myristoyl sarcosine sodium, sodium dodecylbenzenesulfonate, sodium hydrogenated coconut fatty acid monoglyceride monosulfate, Examples thereof include N-acyl glutamate such as sodium lauryl sulfoacetate and sodium N-palmitoyl glutamate, sodium N-methyl-N-acyl taurate, sodium N-methyl-N-acylalanine, sodium α-olefin sulfonate and the like. As the amphoteric surfactant, lauryldimethylaminoacetic acid betaine, N-coconut oil fatty acid acyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, and the like are used, but are not limited thereto.
When a surfactant other than the above component (A) is blended, the blending amount is preferably 0.01 to 5% by mass of the entire composition, and can be used within a range not impeding the effects of the present invention.
香料として、表8,9に示す組成の香料組成物A~Iを調製し、配合した。 For preparation of these liquid oral compositions, isopropylmethylphenol (manufactured by Osaka Kasei Co., Ltd.), polyoxyethylene (60) hydrogenated castor oil (manufactured by Nikko Chemicals), polyoxyethylene (30) cetyl ether (Nihon Emulsion Co., Ltd.) ), Glycerin (85% by mass, manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.), propylene glycol (manufactured by Asahi Glass Co., Ltd.), polyethylene glycol # 400 (manufactured by Lion Chemical Co., Ltd.), sorbitol (manufactured by Towa Kasei Kogyo Co., Ltd.), l-menthol (takasago fragrance) Kogyo Kogyo Co., Ltd.), methyl paraben (methyl paraoxybenzoate, Ueno Pharmaceutical Co., Ltd.), 3-octanol (Shiono Fragrance Co., Ltd.), 3-octyl acetate and 3-octanone (Inoue Fragrance Co., Ltd.) ), Anisaldehyde (manufactured by Taiyo Inc.), 1-octanol (manufactured by Takasago International Inc.), kue Acid (Fuso Chemical Co., Ltd.), sodium citrate (Fuso Chemical Co., Ltd.) was used sodium saccharin (manufactured Aisan Chemical Industry Co., Ltd.). Ethanol (manufactured by Nippon Alcohol Sales Co., Ltd.) was used for the comparative example. In the table, POE represents polyoxyethylene, PEG represents polyethylene glycol, and% shown below means mass% unless otherwise specified. About the component whose form is aqueous solution, all showed the compounding quantity of pure part conversion also including the table | surface.
As fragrances, fragrance compositions A to I having the compositions shown in Tables 8 and 9 were prepared and blended.
表1~7に示す組成の液体口腔用組成物を常法により調製し、下記方法でモデルバイオフィルムに対する浸透殺菌効果を評価した。結果を表1~7に示す。
なお、表1~3の実施例1~41、及び表5~7の実施例42~84において、香料組成物Aを香料組成物B~Iのいずれかに置き換えても同様の結果が得られた。 [Experimental Example 1]
Liquid oral compositions having the compositions shown in Tables 1 to 7 were prepared by a conventional method, and the penetration sterilizing effect on the model biofilm was evaluated by the following method. The results are shown in Tables 1-7.
In Examples 1 to 41 in Tables 1 to 3 and Examples 42 to 84 in Tables 5 to 7, similar results were obtained even when the fragrance composition A was replaced with any of the fragrance compositions B to I. It was.
直径7mmのハイドロキシアパタイト(HA)板を0.45μmのフィルターで濾過した人無刺激唾液で4時間処理し、ヘミン及びメナジオンを添加したトリプチケースソイブロス中、ストレプトコッカス ミュータンス(Streptococcus mutans)、アクチノマイセス ナエスランディ(Actinomyces naeslundii)、ベイヨネラ パルビュラ(Veillonella parvula)、フゾバクテリウム ヌクレアタム(Fusobacterium nucleatum)及びポルフィロモナス ジンジバリス(Porphyromonas gingivalis)の5菌種混合系で2週間連続培養することにより、HA板上にモデルバイオフィルムを形成させた。2週間培養後より1日1回、下記表に示した液体口腔用組成物に人口唾液(50mmol/L KCl+1mmol/L KH2PO4+1mmol/L CaCl2+0.1mmol/L MgCl2(pH7.0))を2倍質量添加し、分散させた後の遠心上清を試験薬剤液として、これにモデルバイオフィルムを3分間浸漬処理し、更に3日間培養した。培養終了時にモデルバイオフィルムを取り出し、分散後、寒天平板上で培養することによりモデルバイオフィルム中の各菌種の生菌数を求めた。生菌数は、培養条件により多少振れるが、試験薬剤の代わりに人口唾液を作用させた場合では、約8.5log cfu(colony forming units/HA板)であり、6.0log cfu/HA板未満の場合において、バイオフィルム殺菌力が高いと判断した。 Evaluation method of model biofilm bactericidal effect:
Streptococcus mutans, actino in trypticase soy broth treated with human unstimulated saliva filtered through a 0.45 μm filter for 4 hours with a hydroxyapatite (HA) plate having a diameter of 7 mm and added with hemin and menadione. Cultivated by Actinomyces naeslundii, Bayonella parvula, Fusobacterium nucleatum, and Porphyromonas genivaris on Porphyromonas spp. A model biofilm was formed. Once a day after culturing for two weeks, artificial saliva (50 mmol / L KCl + 1 mmol / L KH 2 PO 4 +1 mmol / L CaCl 2 +0.1 mmol / L MgCl 2 (pH 7.0) is added to the liquid oral composition shown in the table below. )) Was added twice as much and dispersed, and the centrifuged supernatant was used as a test drug solution. The model biofilm was immersed in the solution for 3 minutes and further cultured for 3 days. At the end of the culture, the model biofilm was taken out, dispersed, and cultured on an agar plate to determine the number of viable bacteria of each bacterial species in the model biofilm. Although the number of viable bacteria may fluctuate somewhat depending on the culture conditions, when artificial saliva is used instead of the test drug, it is about 8.5 log cfu (colony forming units / HA plate), less than 6.0 log cfu / HA plate In this case, it was judged that the biofilm sterilizing power was high.
◎:5.0log cfu/HA板未満
○:5.0log cfu/HA板以上~6.0log cfu/HA
板未満
△:6.0log cfu/HA板以上~7.0log cfu/HA
板未満
×:7.0log cfu/HA板以上 Evaluation criteria for model biofilm sterilization effect ◎: Less than 5.0 log cfu / HA plate ○: More than 5.0 log cfu / HA plate to 6.0 log cfu / HA
Less than plate Δ: 6.0 log cfu / HA plate or more to 7.0 log cfu / HA
Less than board x: 7.0 log cfu / HA board or more
表1~7に示す組成の液体口腔用組成物について、下記方法で外観安定性、結晶の析出を評価した。結果を表1~7に示す。
外観安定性、結晶析出:
表1~7に示したサンプルを満注量450mLのPET容器に450mL充填し、-5℃恒温槽に3ヶ月保存後の外観安定性、及び結晶の析出を下記基準に則り、目視判定した。 [Experimental example 2]
The liquid oral compositions having the compositions shown in Tables 1 to 7 were evaluated for appearance stability and crystal precipitation by the following methods. The results are shown in Tables 1-7.
Appearance stability, crystal precipitation:
Samples shown in Tables 1 to 7 were filled with 450 mL of a 450 mL filled PET container, and appearance stability after 3 months storage in a -5 ° C. constant temperature bath and crystal precipitation were visually determined according to the following criteria.
◎:初期品と比較し、変化が認められない。
○:ごくわずかなオリが認められるが問題ない。
△:微濁が認められる。
×:かなりの白濁又は沈澱物が認められる。 Appearance stability evaluation standard A : No change is observed compared to the initial product.
○: A slight amount of orientation is recognized, but there is no problem.
Δ: Slight turbidity is observed.
X: Considerable cloudiness or precipitate is observed.
◎:初期品と差がなく、結晶の析出が認められない。
○:ごく微量の析出物が認められる。
△:微量の針状結晶が認められる。
×:針状結晶の析出が認められる。 Crystal Precipitation Evaluation Criteria A : There is no difference from the initial product, and no crystal deposition is observed.
○: A very small amount of precipitate is observed.
(Triangle | delta): A trace amount acicular crystal | crystallization is recognized.
X: Precipitation of acicular crystals is observed.
表1~7に示す組成の液体口腔用組成物について、下記方法で下記に示す使用感、嫌味のなさを評価した。結果を表1~7に示す。 [Experimental Example 3]
For the liquid oral compositions having the compositions shown in Tables 1 to 7, the following feelings of use and taste were evaluated by the following methods. The results are shown in Tables 1-7.
表1~7に示したサンプル20mLを口に含み、30秒間すすいだ後、洗口直後の清涼感のよさ、刺激のなさ、べたつき感のなさについて下記の4段階で評価し、各評価について10名の平均点を次の基準に従い、◎、○、△、×で表に示した。 (1) Feeling of use The sample containing 20 mL shown in Tables 1 to 7 is included in the mouth, rinsed for 30 seconds, and then evaluated for the coolness immediately after the mouthwash, no irritation, and no stickiness. The average score of 10 persons for each evaluation is shown in the table with ◎, ○, Δ, × according to the following criteria.
4:清涼感が認められた。
3:やや清涼感が認められた。
2:かすかに清涼感が認められた。
1:清涼感が認められなかった。 Refreshing feeling after mouthwash 4: A refreshing feeling was recognized.
3: A slight refreshing feeling was recognized.
2: A refreshing feeling was slightly recognized.
1: A refreshing feeling was not recognized.
4:刺激が認められなかった。
3:ほとんど刺激が認められなかった。
2:やや刺激が認められた。
1:刺激が認められた。 No irritation after mouthwash 4: No irritation was observed.
3: Almost no irritation was observed.
2: Slight irritation was observed.
1: Stimulation was observed.
4:べたつき感が認められなかった。
3:ほとんどべたつき感が認められなかった。
2:ややべたつき感が認められた。
1:べたつき感が認められた。 No stickiness after mouthwash 4: Stickiness was not recognized.
3: A sticky feeling was hardly recognized.
2: A slightly sticky feeling was recognized.
1: A sticky feeling was recognized.
◎:平均点4.0点
○:平均点3.0点以上4.0点未満
△:平均点2.0点以上3.0点未満
×:平均点1.0点以上2.0点未満 Usability evaluation criteria ◎: Average point 4.0 points ○: Average point 3.0 points or more and less than 4.0 points Δ: Average point 2.0 points or more and less than 3.0 points ×: Average point 1.0 points or more 2 Less than 0 points
専門家パネラー10人を用いた官能試験を実施した。表1~7に示したサンプル20mLを口に含み、30秒間すすぎ、使用中に感じた嫌味のなさを、以下の評点に従って評価した。10名の評価結果の平均値を求め、以下の基準で◎及び○の評価が確保されるものを、嫌味のない液体口腔用組成物であると判断した。
(評点)
4点:嫌味が全くない
3点:嫌味がほとんどない
2点:嫌味がややある
1点:嫌味がある
(評価基準)
◎ :3.7点以上~4.0点以下
◎~○:3.3点以上~3.7点未満
○ :3.0点以上~3.3点未満
△ :2.0点以上~3.0点未満
× :2.0点未満 (2) Lack of taste A sensory test was conducted using 10 expert panelists. A 20 mL sample shown in Tables 1-7 was included in the mouth, rinsed for 30 seconds, and evaluated for the unpleasant taste felt during use according to the following rating. An average value of the evaluation results of 10 persons was obtained, and a liquid oral composition having no taste was determined if the evaluation of ◎ and ○ was ensured according to the following criteria.
(Score)
4 points: no disgusting 3 points: little disgusting 2 points: slightly disgusting 1 point: disgusting (evaluation criteria)
◎: 3.7 points to 4.0 points ◎ to ○: 3.3 points to less than 3.7 points ○: 3.0 points to less than 3.3 points △: 2.0 points to 3 points Less than 0 point x: Less than 2.0 point
Claims (8)
- イソプロピルメチルフェノールを含有する液体口腔用組成物に、
(A)ノニオン性界面活性剤、
(B)グリセリン、プロピレングリコール、ポリエチレングリコール、ソルビトールから選ばれる1種以上の湿潤剤、
(C)l-メントール、
(D)パラオキシ安息香酸エステル、
(E)3-オクタノール、3-オクチルアセテート、3-オクタノン、フェンコンから選ばれる1種以上の香料成分
を配合してなり、成分(B)の合計含有量が組成物全体の5~20質量%であり、実質的にエタノールを含有しないことを特徴とするイソプロピルメチルフェノール含有液体口腔用組成物。 In the liquid oral cavity composition containing isopropylmethylphenol,
(A) a nonionic surfactant,
(B) one or more wetting agents selected from glycerin, propylene glycol, polyethylene glycol, and sorbitol,
(C) l-menthol,
(D) paraoxybenzoic acid ester,
(E) One or more perfume ingredients selected from 3-octanol, 3-octyl acetate, 3-octanone, and Fencon are blended, and the total content of component (B) is 5 to 20% by mass of the total composition An isopropylmethylphenol-containing liquid oral composition characterized by being substantially free of ethanol. - (A)ノニオン性界面活性剤が、エチレンオキサイドの平均付加モル数が40~100モルのポリオキシエチレン硬化ヒマシ油及びアルキル基の炭素数が16~18でエチレンオキサイドの平均付加モル数が10~40モルのポリオキシエチレンアルキルエーテルから選ばれる1種以上である請求項1記載の液体口腔用組成物。 (A) a nonionic surfactant comprising polyoxyethylene hydrogenated castor oil having an average addition mole number of ethylene oxide of 40 to 100 moles and an alkyl group having 16 to 18 carbon atoms and an average addition mole number of ethylene oxide of 10 to 10 The liquid oral composition according to claim 1, wherein the composition is one or more selected from 40 moles of polyoxyethylene alkyl ether.
- 成分(B)として、グリセリンとプロピレングリコール、グリセリンとポリエチレングリコール、又はグリセリンとプロピレングリコールとポリエチレングリコールとを組み合わせて配合した請求項1又は2記載の液体口腔用組成物。 The liquid oral composition according to claim 1 or 2, wherein glycerin and propylene glycol, glycerin and polyethylene glycol, or glycerin, propylene glycol, and polyethylene glycol are combined as component (B).
- 組成物中のエタノール含有量が100ppm以下である請求項1、2又は3記載の液体口腔用組成物。 The composition for liquid oral cavity according to claim 1, 2 or 3, wherein the ethanol content in the composition is 100 ppm or less.
- 成分(A)を0.1~1.0質量%、成分(C)を0.01~0.3質量%、成分(D)を0.01~0.3質量%、成分(E)を0.001~0.1質量%含有する請求項1乃至4のいずれか1項記載の液体口腔用組成物。 Component (A) is 0.1 to 1.0 mass%, Component (C) is 0.01 to 0.3 mass%, Component (D) is 0.01 to 0.3 mass%, and Component (E) is The liquid oral composition according to any one of claims 1 to 4, which is contained in an amount of 0.001 to 0.1% by mass.
- 組成物中の水分量が70質量%以上である請求項1乃至5のいずれか1項記載の液体口腔用組成物。 The liquid oral composition according to any one of claims 1 to 5, wherein the water content in the composition is 70% by mass or more.
- 更に、(F)アニスアルデヒドを含有する請求項1乃至6のいずれか1項記載の液体口腔用組成物。 The liquid oral composition according to any one of claims 1 to 6, further comprising (F) anisaldehyde.
- 成分(F)を0.0001~0.1質量%含有する請求項5記載の液体口腔用組成物。 The liquid oral composition according to claim 5, comprising 0.0001 to 0.1% by mass of component (F).
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CN201080043228.9A CN102573770B (en) | 2009-11-06 | 2010-11-01 | Isopropyl methyl phenol-containing liquid composition for oral cavity |
HK12112711.9A HK1171942A1 (en) | 2009-11-06 | 2012-12-10 | Isopropyl methyl phenol-containing liquid composition for oral cavity |
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JP2009255191A JP5573111B2 (en) | 2009-11-06 | 2009-11-06 | Isopropylmethylphenol-containing liquid oral composition |
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CN113368011A (en) * | 2021-06-08 | 2021-09-10 | 广东金骏康生物技术有限公司 | Anti-inflammatory and antioxidant mouth wash |
WO2023222213A1 (en) | 2022-05-18 | 2023-11-23 | Symrise Ag | Antimicrobial mixtures |
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JP5971988B2 (en) * | 2012-03-02 | 2016-08-17 | 花王株式会社 | Liquid oral composition |
JP2013194025A (en) * | 2012-03-22 | 2013-09-30 | Sunstar Inc | Liquid composition for oral cavity |
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JP5573111B2 (en) | 2014-08-20 |
CN102573770A (en) | 2012-07-11 |
HK1171942A1 (en) | 2013-04-12 |
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