JP5611089B2 - 水性液体口腔用組成物 - Google Patents
水性液体口腔用組成物 Download PDFInfo
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- JP5611089B2 JP5611089B2 JP2011054679A JP2011054679A JP5611089B2 JP 5611089 B2 JP5611089 B2 JP 5611089B2 JP 2011054679 A JP2011054679 A JP 2011054679A JP 2011054679 A JP2011054679 A JP 2011054679A JP 5611089 B2 JP5611089 B2 JP 5611089B2
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- ellagic acid
- liquid oral
- aqueous liquid
- mass
- acid
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- 239000000203 mixture Substances 0.000 title claims description 45
- 239000007788 liquid Substances 0.000 title claims description 38
- AFSDNFLWKVMVRB-UHFFFAOYSA-N Ellagic acid Chemical compound OC1=C(O)C(OC2=O)=C3C4=C2C=C(O)C(O)=C4OC(=O)C3=C1 AFSDNFLWKVMVRB-UHFFFAOYSA-N 0.000 claims description 77
- ATJXMQHAMYVHRX-CPCISQLKSA-N Ellagic acid Natural products OC1=C(O)[C@H]2OC(=O)c3cc(O)c(O)c4OC(=O)C(=C1)[C@H]2c34 ATJXMQHAMYVHRX-CPCISQLKSA-N 0.000 claims description 73
- 229920002079 Ellagic acid Polymers 0.000 claims description 73
- 229960002852 ellagic acid Drugs 0.000 claims description 73
- 235000004132 ellagic acid Nutrition 0.000 claims description 73
- FAARLWTXUUQFSN-UHFFFAOYSA-N methylellagic acid Natural products O1C(=O)C2=CC(O)=C(O)C3=C2C2=C1C(OC)=C(O)C=C2C(=O)O3 FAARLWTXUUQFSN-UHFFFAOYSA-N 0.000 claims description 73
- 150000003839 salts Chemical class 0.000 claims description 27
- 239000007864 aqueous solution Substances 0.000 claims description 24
- 210000000214 mouth Anatomy 0.000 claims description 17
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 17
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 17
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 14
- 150000001413 amino acids Chemical class 0.000 claims description 8
- 239000003002 pH adjusting agent Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- -1 polyphenol compound Chemical class 0.000 description 17
- 238000003860 storage Methods 0.000 description 15
- 239000000126 substance Substances 0.000 description 15
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- 239000004475 Arginine Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 7
- 229960003121 arginine Drugs 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 7
- 239000000194 fatty acid Substances 0.000 description 7
- 229930195729 fatty acid Natural products 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- 230000002401 inhibitory effect Effects 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 229940024606 amino acid Drugs 0.000 description 5
- 239000006172 buffering agent Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002087 whitening effect Effects 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002324 mouth wash Substances 0.000 description 4
- 229940051866 mouthwash Drugs 0.000 description 4
- 208000028169 periodontal disease Diseases 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000004359 castor oil Substances 0.000 description 3
- 235000019438 castor oil Nutrition 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000006806 disease prevention Effects 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 238000010979 pH adjustment Methods 0.000 description 3
- 230000007505 plaque formation Effects 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 2
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 2
- 239000004472 Lysine Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 241000607598 Vibrio Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001483 arginine derivatives Chemical class 0.000 description 2
- 238000004166 bioassay Methods 0.000 description 2
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000551 dentifrice Substances 0.000 description 2
- ZEPCRIPMALGRJR-UHFFFAOYSA-N ellagic acid, dihydrate Chemical compound O.O.OC1=C(O)C(OC2=O)=C3C4=C2C=C(O)C(O)=C4OC(=O)C3=C1 ZEPCRIPMALGRJR-UHFFFAOYSA-N 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- JZRWCGZRTZMZEH-UHFFFAOYSA-N thiamine Chemical compound CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 2
- FTLYMKDSHNWQKD-UHFFFAOYSA-N (2,4,5-trichlorophenyl)boronic acid Chemical compound OB(O)C1=CC(Cl)=C(Cl)C=C1Cl FTLYMKDSHNWQKD-UHFFFAOYSA-N 0.000 description 1
- ZBZWVGNHJHDIEH-UHFFFAOYSA-N 3-bromo-2-(4-methoxyphenyl)-2h-furan-5-one Chemical compound C1=CC(OC)=CC=C1C1C(Br)=CC(=O)O1 ZBZWVGNHJHDIEH-UHFFFAOYSA-N 0.000 description 1
- ODHCTXKNWHHXJC-UHFFFAOYSA-N 5-oxoproline Chemical compound OC(=O)C1CCC(=O)N1 ODHCTXKNWHHXJC-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241001340526 Chrysoclista linneella Species 0.000 description 1
- AUNGANRZJHBGPY-UHFFFAOYSA-N D-Lyxoflavin Natural products OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-UHFFFAOYSA-N 0.000 description 1
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- AHLPHDHHMVZTML-BYPYZUCNSA-N L-Ornithine Chemical compound NCCC[C@H](N)C(O)=O AHLPHDHHMVZTML-BYPYZUCNSA-N 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-N L-arginine Chemical compound OC(=O)[C@@H](N)CCCN=C(N)N ODKSFYDXXFIFQN-BYPYZUCNSA-N 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 1
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 description 1
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 description 1
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- AHLPHDHHMVZTML-UHFFFAOYSA-N Orn-delta-NH2 Natural products NCCCC(N)C(O)=O AHLPHDHHMVZTML-UHFFFAOYSA-N 0.000 description 1
- UTJLXEIPEHZYQJ-UHFFFAOYSA-N Ornithine Natural products OC(=O)C(C)CCCN UTJLXEIPEHZYQJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229960003589 arginine hydrochloride Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- AMFZXVSYJYDGJD-UHFFFAOYSA-M ethyl-dimethyl-(3-methyl-2-oxobut-3-enyl)azanium;chloride Chemical compound [Cl-].CC[N+](C)(C)CC(=O)C(C)=C AMFZXVSYJYDGJD-UHFFFAOYSA-M 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 229960002885 histidine Drugs 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 229960003646 lysine Drugs 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229960003104 ornithine Drugs 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000008057 potassium phosphate buffer Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000019192 riboflavin Nutrition 0.000 description 1
- 229960002477 riboflavin Drugs 0.000 description 1
- 239000002151 riboflavin Substances 0.000 description 1
- 229940085605 saccharin sodium Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 235000019157 thiamine Nutrition 0.000 description 1
- 239000011721 thiamine Substances 0.000 description 1
- 229940042585 tocopherol acetate Drugs 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229960004799 tryptophan Drugs 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
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- Cosmetics (AREA)
Description
特許文献1〜5においてエラグ酸又はその塩は、美白作用を有する皮膚外用剤として適用することを目的として、エラグ酸を含有する化合物を微粒子化したり、乳化安定性を図る手段が採用されているが、該手段では、エラグ酸又はその塩の水又は水溶液に対する溶解性や、水溶液中での安定性に課題があった。
従って、本発明の課題は、エラグ酸又はその塩を含有する安定な水性液体口腔用組成物を提供することにある。
(A)エラグ酸又はその塩 0.001〜0.1質量%、
(B)ポリビニルピロリドン 0.001〜1.2質量%
を含有し、pHが6.5〜9.0である水性液体口腔用組成物を提供するものである。
本発明において、(A)エラグ酸の塩としては、ナトリウム塩、カルシウム塩、カリウム塩及びアルギニン塩が好ましく、ナトリウム塩及びアルギニン塩がより好ましく、ナトリウム塩がさらに好ましい。
また、界面活性剤の含有量は、油性成分の溶解性と透明性の点から、水性液体口腔用組成物中に0〜2.0質量%であるのが好ましく、0.1〜1.5質量%であるのがより好ましく、0.1〜1.0質量%であるのがさらに好ましい。
Basslerらの方法(Mol.Microbiol.,9(4),p.773−786,1993)を参照し、AB(Autoinducer Bioassay)培地を下記のように調製した。
0.2%vitamine−free casamino acids(Difco社製)、0.3M NaCl(和光純薬社製)、0.05M MgSO4・7H2O(和光純薬社製)の溶液を任意の濃度のKOH溶液(和光純薬社製)でpH7.5に調整し、オートクレーブ後、室温で保存した。1Mリン酸カリウムバッファー(1M KH2PO4 21.1mL及び1M K2HPO4 28.9mL)10mL、0.1M L−arginine(free−base、和光純薬社製)10mL、1mg/mL thiamin・HCl(和光純薬社製)1mL、10μg/mL riboflavin(和光純薬社製)1mL、及びグリセロール(和光純薬社製)20mLをよく混和後、濾過滅菌したもの42mLを、前記溶液1Lに対して添加し、AB培地を調製した。
上記菌液200μLをAB培地に植菌し、好気条件下16時間、30℃、200rpmで振盪培養を行った。この菌液をAB培地で5000倍に希釈し、レポーター菌液とした。
その結果を表1に示す。
試験例1(エラグ酸の溶解性試験)
表2に示す各種緩衝剤を含有する水溶液(緩衝液)にエラグ酸0.01質量%を配合し、溶解性を検討した。その結果を表2に示す。
試験例1においてエラグ酸が溶解したpH9の水溶液を用いて保存後のエラグ酸の含有量を特定することによって安定性を評価した。具体的には、表3に示す、Tris−HCL0.01Mを含有する約pH9の水溶液、及びアルギニン0.1Mを含有し、HClにより約pH9に調整した水溶液を、各々50℃で保存した後のエラグ酸の含有量を測定した。エラグ酸の含有量は高速液体クロマトグラフィ(HPLC)で測定した。エラグ酸の残存率は、保存後のエラグ酸の含有量/保存前のエラグ酸の含有量である。表3に示すように、本発明の成分(B)ポリビニルピロリドンを含有しない場合、エラグ酸の含有量は保存前に比べて著しく低下した。
(HPLCの測定条件)
装置:日立高速液体クロマトグラム La chrom Elite
カラム:L−colum ODS 150−4.6(5μm)(化学物質評価研究機構)
カラム温度:40℃
移動層:0.05%酢酸水溶液 および100%アセトニトリル。
0.05%酢酸水溶液から、100%アセトニトリルを用い、アセトニトリル75%に35 分間でグラジエントする。
流量:1.0mL/min
サンプル注入量:20μL
測定波長:UV280nm
(測定用のエラグ酸標準液)
20mgエラグ酸に20mLのアセトニトリルを添加し、メタノールで100mLにメスアップ後10分間超音波処理したものを標準液とした。
なお、酢酸トコフェロールとブチルヒドロキシアニソール(BHA)は、溶解性のためポリオキシエチレン硬化ヒマシ油(エマノーンCH−40、花王(株))0.2質量%、及びエタノール5質量%を含有させ、他の添加剤含有水溶液と同じく、アルギニンは0.05M濃度で含有させた。
エラグ酸 0.02%
キシリトール 7%
グリセリン 4%
ポリオキシエチレン硬化ヒマシ油 0.5%
サッカリンナトリウム 0.02%
アルギニン-HCl 0.01%
ポリビニルピロリドン 0.01%
(PVP K−90)
香料 0.01%
pH調整剤 適量
精製水 残
計 100%
Claims (6)
- 次の成分(A)及び(B):
(A)エラグ酸又はその塩 0.001〜0.1質量%、
(B)ポリビニルピロリドン 0.001〜1.2質量%
を含有し、pHが6.5〜9.0である水性液体口腔用組成物。 - 成分(A)と成分(B)の含有質量比(A:B)が、10:1〜1:120である請求項1記載の水性液体口腔用組成物。
- pHを6.5〜9.0にするためのpH調整剤を含有する請求項1又は2記載の水性液体口腔用組成物。
- pH調整剤が、少なくとも塩基性アミノ酸を含有し、組成物中に塩基性アミノ酸を0.001〜0.5質量%含有する請求項3に記載の水性液体口腔用組成物。
- 透明水性液体口腔用組成物である請求項1〜4のいずれか1項記載の水性液体口腔用組成物。
- (A)エラグ酸又はその塩0.001〜0.1質量%及び塩基性アミノ酸を配合しpH7.5〜9.5の水溶液を製造する工程(a)と、
(B)ポリビニルピロリドン0.001〜1.2質量%を配合する工程(b)と、
pHを6.5〜9.0に調整する工程(c)とを含む水性液体口腔用組成物の製造方法。
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