Aroma composition

Abstract

Suggested is an aroma composition for masking salty and bitter notes in tooth cleaning compositions comprising (a) at least three different alkyl aryl ether; (b) at least one alpha hydroxy ketone; and (c) at least one aroma substance.

Description

AROMA COMPOSITIONFIELD OF THE INVENTION

[0001] The present invention refers to an aroma composition for masking salty and bitter notes in tooth cleaning compositions.BACKGROUND OF THE INVENTION

[0002] Common tooth cleaning compositions available on the market, in particular toothpastes, toothpaste gels, mouthwashes and tooth powders regularly contain a large number of active ingredients, e.g. effective against tooth decay, plaque formation, tooth neck sensitivity, tartar formation, bad breath, etc.

[0003] These active ingredients often bring about increased unpleasant taste impressions, so that the tooth cleaning compositions in question are usually flavored to an increased extent. Substances such as, for example, sodium bicarbonate and betaine lead to a salty and / or bitter taste.

[0004] In order to cover or mask (i.e. reduce or diminish) the extremely negative taste notes of the active ingredients used in tooth cleaning compositions and at the same time to give the consumer a feeling of pleasant freshness, the proportion of flavor used has been increased in recent years in a tooth cleaning composition.

[0005] Vanillin and ethyl vanillin are known substances which mask such undesired notes. WO 2014 / 039966 A2 describes, for example, mouth rinses and tooth sensitivity treatment compositions with vanillin as a taste masking agent. However, aldehydes in general, in particular maltol, ethyl maltol, cinnamaldehyde, vanillin or ethylvanillin cause severe discoloration of the toothpaste and mouthwash formulations. This is even worse with the reduction of titanium dioxide nanoparticles in tooth cleaning compositions. Titanium dioxide - a white color pigment with high opacity - is suspected of damaging the genetic material and is thus already prohibited in food. i

[0006] Therefore, it has been the object of the present invention providing aroma compositions which are stable and do not cause discoloration, even in titanium dioxide free tooth cleaning compositions.DESCRIPTION OF THE INVENTION

[0007] A first object of the present invention refers to an aroma composition for masking salty and bitter notes in tooth cleaning compositions comprising(a) at least three different alkyl aryl ether;(b) at least one alpha hydroxy ketone; and(c) at least one aroma substance.

[0008] It goes without saying that component (c) is different from components (a) and (b).

[0009] It has been surprisingly found that aroma compositions comprising at least three different alkyl aryl ether and at least one alpha hydroxy ketone show unexpected masking effects in tooth cleaning compositions. In other words, the aroma compositions according to the invention are able to mask salty and bitter notes in tooth cleaning compositions which are preferably caused by compounds with bitter notes such as betaines and sarcosinates, cetyl pyridinium chloride, chlorhexidine and amine fluoride and / or by compounds with salty notes such as sodiumbicarbonate, pyrophosphates, potassium and strontium salts. Preferably the salty notes are caused by sodium bicarbonate as part of the cleaning body within tooth cleaning compositions and the bitter notes are caused by betaine as part of the surfaceactive substances within tooth cleaning compositions.

[0010] Preferably, the alkyl aryl ether are selected from the group consisting of propenyl guaethol, anisyl alcohol, 4-methyl guaiacol, eugenol, isoeugenol, anethole, 2-Methoxy-4- vinylphenol. In a more preferred embodiment according to the invention, the alkyl aryl ether are selected from the group consisting of propenyl guaethol, anisyl alcohol, 4-methyl guaiacol and anethole. In a most preferred embodiment according to the invention, the alkyl aryl ether are selected from the group consisting of propenyl guaethol, anisyl alcohol and 4- methyl guaiacol. In other words, preferably the three different alkyl aryl ether as a part of the aroma composition are propenyl guaethol, anisyl alcohol and 4-methyl guaiacol.

[0011] In a preferred embodiment according to the invention, the alpha hydroxy ketone is selected from the group consisting of acyloin, such as acetoin and / or benzoin. Preferably, the alpha hydroxy ketone is acetoin.

[0012] According to the invention, the aroma composition comprises further aroma substances. Preferred individual compounds which can be used as a further aroma substances are selected from the group consisting of: Acetophenone, acethylmethylcarbinol, allyl caproate, aromadendrene, alpha-ionone, alpha-pinene, beta-pinene, beta-ionone, anisaldehyde, anisyl acetate, anisyl formate, benzaldehyde, benzothiazole, benzyl acetate, benzyl alcohol, benzyl benzoate, bergamotene, bisabolol, beta-ionone , borneol, butyl butyrate, butyl caproate, butylidenephthalide, dela-carene, carvone, camphene, camphor, carveol, carvyl acetate, caryophyllene, caryophyllene oxide, cineole, cinnamyl acetate, citral, citronellol, citronellal, citronellyl acetate, cyclohexyl acetate, cymol, damascene, decalactone, dihydrocoumarin, Di hydrocarvone, dimethyl anthranilate, dimethyl anthranilate, dodecalactone, ethoxyethyl acetate, ethyl butyric acid, ethyl butyrate, ethyl caprinate, ethyl caproate, ethyl crotonate, ethyl furaneol, ethyl guaiacol, ethyl isobutyrate, ethyl isovalerianate, ethyl lactate, ethyl methyl butyrate, ethyl propionate, eucalyptol, eudesmol, ethylheptylate, 4-(p-hydroxyphenyl)- 2-butanone, lactones (c9-c12), in particular gammadecalactone, farnesene, fenchol, geraniol, geranyl acetate, geranyl acetate, grapefruit aldehyde, gualene, guaiol, methyl dihydrojasmonate (e.g. Hedion®), heliotropin, 2- heptanone, 3-heptanone, 4-heptanone, trans-2-heptenal, cis-4-heptenal, trans-2-hexenal, cis-3-hexenol, trans-2-hexenoic acid, trans- 3-hexenoic acid, cis-2-hexenyl acetate, cis-3- hexenyl acetate, cis-3-hexenyl caproate, trans-2-hexenyl caproate, cis-3-hexenyl formate, cis- 2-hexyl acetate, cis-3-hexyl acetate, trans-2- Hexyl acetate, cis-3-hexyl formate, humulene, para-hydroxybenzylacetone, isoamyl alcohol, isoamyl isovalerianate, isobutyl butyrate, isobutyraldehyde, isomenthone, isopropylmethylthiazole, lauric acid, leavulinic acid, limonene, linalool, linalool oxide, linalyl acetate, menthol, menthofuran, Men clay, menthyl acetate, methyl anthranilate, Methylbutanol, methylbutyric acid, 2-methylbutylacetate, methylcaproate, methylcinnamate, 5-methylfurfural, 3,2,2-methylcyclopentenolone, 6,5,2- methylheptenone, methyldihydrojasmonate, methyljasmonate, 2-methylmethylbutyrate, 2- methyl-2-pentenolic acid, methylthiobutyrate, 3,1 -methylthiohexanol, 3-methylthiohexyl acetate, myrcene, nerol, nerolidol, neryl acetate, trans, trans-2, 4-nonadienal, 2,4-nonadienol, 2,6-nonadienol, 2,4-nonadienol, nootkatone, ocimene, delta octalactone, gamma octalactone, 2-octanol, 3-octanol, 1,3-octenol, 1 -octyl acetate, 3-octyl acetate, palmitic acid, paraldehyde,phellandrene, pentanedione, phenylethyl acetate, phenylethyl alcohol, phenylethyl alcohol, phenylethyl isovalerate, piperonal, propionaldehyde, propyl butyrate, Pulegone, pulegol, sabinene hydrate, selinene, sinensal, sulfurol, terpinene, terpineol, terpinolene, 8,3- thiomenthanone, 4,4,2-thiomethylpentanone, thymol, delta-undecalactone, gammaundecalactone, valencene, valeric acid, ethyl vanillin isobutyrate (= 3-ethoxy-4- isobutyryloxybenzaldehyde), 2,5-dimethyl-4-hydroxy-3(2H)-furanone and its derivatives (preferably homofuraneol (= 2-ethyl-4-hydroxy-5- methyl-3(2H)-furanone), homofuronol (= 2-ethyl-5-methyl-4-hydroxy-3(2H)-furanone and 5-ethyl-2-methyl-4-hydroxy-3(2H)-furanone ), maltol and maltol derivatives (preferably ethylmaltol), coumarin and coumarin derivatives, gamma-lactones (preferably gamma-undecalactone, gamma-nonalactone, gammadecalactone), delta-lactones (preferably 4-methyldeltadecalactone, massoilactone, Deltadecalactone, tuberolactone), methyl sorbate, divanillin, 4-hydroxy-2(or 5)-ethyl-5(or 2)- methyl-3(2H)-furanone, 2-hydroxy-3-methyl-2-cyclopentenone, 3- Hydroxy-4, 5-dimethyl- 2(5H)-furanone, isoamyl acetate, ethyl butyrate, n-butyl butyrate, isoamyl butyrate, ethyl 3- methylbutyrate, ethyl n-hexanoate, allyl n-hexanoate, n-butyl n-hexanoate, n -Ethyl octanoate, ethyl 3-methyl-3-phenyl glycidate, ethyl 2-trans-4-cis-decadienoate, 4-(p- hydroxyphenyl)-2-butanone, 1,1 -dimethoxy-2,2,5-trimethyl -4-hexane, 2,6-dimethyl-5- hepten-1-al and phenylacetaldehyde, 2-methyl-3-(methylthio)furan, 2-methyl-3-furanthiol, bis(2-methyl-3-furyl) disulfide, furfuryl mercaptan, methional, 2-acetyl-2-thiazoline, 3- mercapto-2-pentanone, 2,5-dimethyl-3-furanthiol, 2,4,5-trimethylthiazole, 2-acetylthiazole, 2,4-dimethyl- 5-ethylthiazole, 2-acetyl-1 -pyrroline, 2-methyl-3-ethylpyrazine, 2-ethyl-3,5- dimethylpyrazine, 2-ethyl-3,6-dimethylpyrazine, 2,3-diethyl-5-methylpyrazine, 3-lsopropyl-2- methoxypyrazine, 3-isobutyl-2-methoxypyrazine, 2-acetylpyrazine, 2-pentylpyridine, (E,E)-2,4- decadienal, (E,E)-2,4-nonadienal, (E )-2-Octenal, (E)-2-Nonenal, 2-Undecenal, 12- Methyltridecanal, 1 -Penten-3-one, 4-Hydroxy-2,5-dimethyl-3(2H)-furanone, Guaiacol, 3 - Hydroxy-4, 5-dimethyl-2(5H)-furanone, 3-hydroxy-4-methyl-5-ethyl-2(5H)-furanone, cinnamaldehyde, cinnamic alcohol, methyl salicylate, isopulegol and stereoisomers (not explicitly mentioned here). , enantiomers, positional isomers, diastereomers, cis / trans isomers or epimers of these substances.

[0013] For the purposes of the present invention, artificial and natural sweeteners and sweetener enhancers are particularly suitable as aroma substances for component (c). These can be selected from the group consisting of

[0014] Sugar alcohols (e.g. erythritol, threitol, arabitol, ribotol, xylitol, sorbitol, mannitol, dulcitol, lactitol);

[0015] Proteins (e.g. miraculin, monellin, thaumatin, curculin, brazzein);

[0016] Synthetic sweeteners (e.g. Magap, sodium cyclamate, acesulfame K, neohesperidin dihydrochalcone, saccharin sodium salt, aspartame, superaspartame, neotame, alitame, sucralose, stevioside, rebaudioside, lugduname, carrelame, sucrononate, sucrooctate, monatin, phenylodulcin);

[0017] Sweet-tasting amino acids (e.g. glycine, D-leucine, D-threonine, D-asparagine, D- phenylalanine, D-tryptophne, L-proline);

[0018] Sweet-tasting low molecular weight substances, such as hernandulcin, dihydrochalcone glycosides, glycyrrhizin, glycerrhetinic acid, their derivatives and salts, extracts of licorice (Glycyrrhizza glabra ssp.), Lippia dulcis extracts, Momordica ssp. Extracts and / or

[0019] Plant extracts, such as Momordica grosvenori [Luo Han Guo] and the mogrosides obtained therefrom, Hydrangea dulcis or Stevia ssp. (e.g. Stevia rebaudiana) extracts or steviosides obtained from them.

[0020] Component (d) comprises at least one of the above-mentioned aroma substances.

[0021] Preferably, these further aroma substances of component (c) are selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and / or lactones (c9-c12), in particular delta-decalactone.

[0022] Preferably, the aroma composition comprises physiological cooling agents selected from the group consisting of Menthol, Menthol glyceryl acetal, Menthol glyceryl ketal, Menthol menthyl ether, Menthone glyceryl acetal, Menthone glyceryl ketal, Menthoxy-1,2- propandiol, Menthoxy-2-methyl-1,2-propanediol, Menthyl acetate, Menthyl ethylene glycol carbonate, Menthyl formiate, Menthyl glutamate, Menthyl glycerol carbonate, Menthyl hydroxy isobutyrate, Menthyl isobutyrate, Menthyl lactate, Menthyl malonate, Menthyl methyl ether, Menthyl N-ethyl oxamate, Menthyl propylene glycol carbonate, Menthyl pyroglutamate, Menthyl-(2-methoxy)acetate, Menthyl-(2-methoxyethoxy)acetate, Menthyl succinate, O-Menthyl succinic acid ester amide, O-Menthyl succinic acid ester-NN- (dimethyl)amide, Menthane carboxylic acid-N-(4-cyanophenyl)-amide, Menthane carboxylic acid-N-(4-cyanomethyl-phenyl)-amide, Menthane carboxylic acid-N-ethylamide (WS-3), (WS-4), Noc-(menthane carbonyl) glycine ethylester (WS-5), (1 R,2S,5R)-N-(4-Methoxyphenyl)-5- methyl-2-(1-isopropyl)cyclohexane-carboxamide (WS-12), (WS-14), 2,3-dimethyl-2-(2- propyl)-butyric acid-N-methylamide (WS23), Isopulegol acetate, p-Menthane-3,8-diol, Cubebol, 3-Methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one), Tetrahydropyrimidine-2-one, N- (2-(pyridin-2-yl)ethyl)-3-p-menthane-carboxamide, [(1R,2S,5R)-2-isopropyl-5-methyl- cyclohexyl] 2-(ethylamino)-2-oxo-acetate, and mixtures thereof.

[0023] Preferably, the aroma composition comprises physiological cooling agents selected from the group consisting of menthol, menthone, isomenthone, carvone, 1,2-dihydrocarvone, piperitone, menthyl acetate, menthyl methyl ether, 1,8-cineole, cinnamic aldehyde and methyl salicylate More preferably, the aroma composition comprises physiological cooling agents selected from the group consisting of menthone, isomenthone, carvone and piperitone.

[0024] Preferably the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone selected from acetoin; and(c) at least one aroma substance.

[0025] Preferably the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone; and(c) at least one aroma substance selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and lactones (c9-c12).Preferably the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone; and(c) aroma substances selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and delta-decalactone.

[0026] Preferably the aroma composition comprises(a) at least three different alkyl aryl ether;(b) at least one alpha hydroxyketone selected from acetoin; and(c) at least one aroma substance selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and lactones (c9-c12).

[0027] Preferably the aroma composition comprises(a) at least three different alkyl aryl ether;(b) at least one alpha hydroxyketone selected from acetoin; and(c) aroma substances selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and delta-decalactone.

[0028] Preferably the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone selected from acetoin; and(c) at least one aroma substance selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and lactones (c9-c12).

[0029] As mentioned above, the aroma composition can additionally comprise physiological cooling agents. Thus, the aroma composition preferably comprises(a) at least three different alkyl aryl ether;(b) at least one alpha hydroxyketone selected from acetoin;(c) at least one aroma substance; and(d) physiological cooling agents selected from the group consisting of menthone, isomenthone, carvone and piperitone

[0030] Preferably, the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone;(c) at least one aroma substance; and(d) physiological cooling agents selected from the group consisting of menthone, isomenthone, carvone and piperitone

[0031] Preferably, the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone selected from acetoin;(c) at least one further aroma substance; and(d) physiological cooling agents selected from the group consisting of menthone, isomenthone, carvone and piperitone.

[0032] Preferably, the aroma composition comprises(a) at least three different alkyl aryl ether selected from propenyl guaethol, anisyl alcohol and 4-methyl guaiacol;(b) at least one alpha hydroxyketone selected from acetoin;(c) at least one further aroma substance selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and lactones (c9-c12), and(d) physiological cooling agents selected from the group consisting of menthol, menthone, isomenthone, carvone, 1,2-dihydrocarvone, piperitone, menthyl acetate, menthyl methyl ether, 1,8-cineole, cinnamic aldehyde and methyl salicylate.

[0033] In a preferred embodiment according to the invention, the aroma composition comprises essential oils and / or extracts. These can be selected from the following list. In this regard, "oil" means pure essential oils obtained per steam distillation or hydrodistillation, "Extract" means a product obtained by solvent extraction of a natural raw material.

[0034] Green-Herbal basil oil, basil extract, caraway oil, caraway extract, carrot seed oil, carrot seed extract, celery seed oil, celery seed extract, celery extract, clary sage oil, clary sage extract, dill weed oil, dill seed oil, estragon oil, estragon extract, Fennel oil, flouve extract, galbanum oil, galbanum extract, heather extract, hay extract, hyssop oil, immortelle extract, lentisque extract, Lin seed extract, Marjoram oil, mate extract, parsley seed oil, parsley leaf oil, star anise oil, star anise extract, star anise, teatree oil, tobacco extract violet leaf extract, Wheat bran extract.

[0035] FloralBroom extract, cabreuva oil, carnation extract, Cassie extract, genet extract, geranium oil, geranium extract, Ho leaf oil, Hyacinthe extract, Jasmin sambac extractjasmin extract asmin, jonquille extract, lavender oil, lavender extract, lavandin oil, lavandin extract, Magnolia flower oil, Magnolia leaf oil, mimosa extract, narcisse extract, Neroli oil, Orange Flower oil, Orange Flower extract, Orange leaf extract, Orris butter, Orris extract, Osmanthus extract, palmarosa oil, petit grain mandarine oil, Petit grain orange oil, petit grain orange bitter oil, rose oil, rose extract, rosewood oil, rosewood leaf oil, Shiu oil, tagetes oil, tagetes extract, tuberose extract, Ylang Ylang oil, Ylang Ylang extract.

[0036] FruityApple extract, Beeswax extract, black currant bud extract, Bran extract, buchu leaf oil, buchu extract, carrot oil, Davana oil.

[0037] SpicyAlpinia oil, Bay oil, black pepper oil, black pepper extract, cardamom oil, cardamom extract, cascarilla oil, cassia oil, cinnamon leaf oil, cinnamon bark oil, Coriander leaf oil, Coriander seed oil, cumin oil, cumin seed oil, fenugrec seed extract, ginger oil, ginger extract, gingergrass oil, green pepper oil, longoza oil, lovage leaf oil, lovage root oil, mace oil, nutmeg oil, nutmeg extract, perilla oil, pimento berry oil, pink pepper oil, pink pepper extract, white pepper oil, Schinus mole Oil, Schinus mole extract, Sichuan pepper extract, tonka bean extract, turmeric oil, turmeric extract,

[0038] Balsamic litsea cubeba oil, Myrrh oil, Myrrh extract, Olibanum oil, Olibanum extract, Opoponax oil, opoponax extract, peru balsam oil, styrax oil, styrax extract, tolu balsam oil, tolu balsam extract, vanilla extract.

[0039] CitrusBergamote oil, cedrat oil, citronella oil, eucalyptus citriodora oil, grapefruit oil, lemon oil, lemongrass oil, litsea cubeba oil, lime oil, mandarin oil, orange oil, orange extract, orange bitter oil, petit grain lemon oil, tangerine oil.

[0040] Aromatic allspices oil, artemisia oil, balsamite oil, calamus oil, catnip oil, cedar leaf oil, Chamomile oil blue, Chamomile oil roman, clove bud oil, clove bud extract, clove leaf oil, clove stem oil, cornmint oil, cypress oil, Elemi oil, Elemi extract, eucalyptus oil, Eucalyptus extract, fir needleoil, fir balsam extract, fusel oil, gentiane extract, Helichrysum oil, hop oil, juniper berry oil, Laurel leaf oil, Laurel leaf extract, Mentha arvensis oil, mentha pipperita oil, mentha piperita extract, myrtle oil, oregano oil, pennyroyal oil, pimento leaf oil, pine needle oil, pine needle extract, punida oil, rosemary oil, rosemary extact, sage oil, spearmint oil, spruce oil thyme oil, thyme extract, Wintergreen oil, wormwood oil.

[0041] AnimalicCastoreum extract, civet extract.

[0042] Woody agarwood oil, amyris oil, boya oil, Cedarwood oil atlas, Cedarwood oil china, Cedarwood oil Texas, Cedarwood oil Virginia, Copaiba oil, cypriol oil, gaharu buaya oil, guaiac oil, Gurjun balsam oil, moss A extract, Moss C extract, nootka tree oil, patchouli oil, patchouli extract, sandalwood oil, vetiver oil.

[0043] AmberCistus oil, cistus extract, Labdanum extract.

[0044] MuskyAmbrette seed oil, Ambrette Seed extract

[0045] Preferably, the essential oils and / or extracts are in total present in an amount of from 0.01 to 60 weight percent, calculated on the total amount of the aroma composition. More preferably, in an amount from 0.1 to 45 weight percent, calculated on the total amount of the aroma composition. More preferably, in an amount from 1 to 30 weight percent, calculated on the total amount of the aroma composition.

[0046] Preferably, the alkyl aryl ether are in total present in an amount from 0.01 to 10 weight percent, calculated on the total amount of the aroma composition. More preferably, alkyl aryl ether are in total present in an amount from 0.1 to 8 weight percent, calculated on the total amount of the aroma composition. More preferably, the alkyl aryl ether are in total present in an amount from 0.5 to 6 weight percent, calculated on the total amount of the aroma composition.

[0047] Preferably, the alpha hydroxyketone is present in an amount from 0.01 to 10 weight percent, calculated on the total amount of the aroma composition. More preferably, the alpha hydroxyketone is present in an amount from 0.05 to 6 weight percent, calculated on the total amount of the aroma composition. More preferably, the alpha hydroxyketone ispresent in an amount from 0.05 to 4 weight percent, calculated on the total amount of the aroma composition.

[0048] Preferably, the further aroma substance is present in an amount from 5 to 99.9 weight percent, calculated on the total amount of the aroma composition. More preferably, the further aroma substance is present in an amount from 10 to 70 percent weight, More preferably 10 to 50 percent weight.

[0049] Preferably, the physiological cooling agent is present in an amount from 0.001 to 10 weight percent, calculated on the total amount of the aroma composition. More preferably, the physiological cooling agent is present in an amount from 0.05 to 8 weight percent, calculated on the total amount of the aroma composition. More preferably, the physiological cooling agent is present in an amount from 0.01 to 6 weight percent, calculated on the total amount of the aroma composition.

[0050] In a preferred embodiment according to the invention, the aroma composition comprises a solvent. Preferably, the solvent is present in an amount of from 0.1 to 20 weight percent, calculated on the total amount of the aroma composition.

[0051] It goes without saying that when, for example, the amount of alkyl aryl ether or alpha hydroxyketone in the aroma composition is discussed, what is meant is the total amount of all alkyl aryl ethers or alpha hydroxy ketones in the aroma composition, regardless of whether, for example, one, two or three different alpha hydroxy ketones or, for example, three or more different aryl alky ether are contained in the aroma composition.

[0052] Preferably, the ratio between the at least three different alkyl aryl ether and the at least one alpha hydroxyketone in the aroma composition is from 20:1 to 1:10. More preferably, from 10:1 to 1:1.

[0053] A second object of the invention refers to a tooth cleaning composition, preferably toothpaste, dentifrice, tooth cleaning gel or toothpowder, comprising the following components:(i) the aroma composition as defined above;(ii) cleaning body;(iii) one or more surface-active substances; and(iv) one or more anti-microbial agents.

[0054] In a preferred embodiment of the invention, the one or more surface-active substances comprise betaine. As mentioned above, betaine is a compound with a bitter note which is effectively masked by the aroma composition of the present invention. The Cas-No. of betaine is 17146-86-0. Further preferred surface-active substances are listed below. In a further preferred embodiment according to the invention, the one or more anti-microbial agents comprise chlorhexidine. As mentioned above, chlorhexidine is a compound with a bitter note which is effectively masked by the aroma composition of the present invention. Further preferred anti-microbial agents are listed below.

[0055] The tooth cleaning composition according to the invention comprises cleaning bodies as component (ii). The term cleaning body includes in particular the abrasive systems common in tooth cleaning compositions, i.e. abrasives or polishing materials. The cleaning bodies to be used according to the invention are suitable for removing dental plaque (plaque) gently, i.e. with little tooth enamel or to remove dentin abrasion from tooth enamel. The cleaning bodies to be used according to the invention as component (ii) are preferably selected from the group consisting of (preferably precipitated) silicic acids, calcium carbonate, calcium phosphates, aluminum oxides, hydroxyapatites, organic cleaning bodies (e.g. polymethacrylate-based plasters) and their mixtures. In a preferred embodiment according to the invention, sodium bicarbonate is part of the cleaning body. As mentioned above, sodium bicarbonate is a compound with a salty note which is effectively masked by the aroma composition of the present invention.

[0056] The tooth cleaning composition according to the invention additionally comprises one or more surface-active substances, preferably sodium lauryl sulfate, sodium lauryl sarcosinate and I or betaine, particularly preferably betaine. In general, anionic, zwitterionic, amphoteric, nonionic surfactants or a combination of several of these surfactants can be used in a tooth cleaning composition according to the invention.

[0057] The tooth cleaning composition according to the invention additionally comprises one or more anti-microbial agents or antimicrobial active ingredients, which are preferably selected from the group consisting of chlorhexidin and triclosan. In some cases, bactericidal substances are also preferably used as antimicrobial agents, such as: phenols, resorcinols, bisphenols, salicylanilides and their halogenated derivatives, halogenated carbanilides and p- hydroxy benzoic acid esters. Instead of or in addition to triclosan, other halogenated diphenyl ethers can be used, e.g. 2,4-dichloro-2'-hydroxydiphenyl ether, 4,4'-dichloro-2'- hydroxydi phenyl ether or 2,4,4'-tribromo-2'-hydroxydiphenyl ether.

[0058] In a preferred embodiment according to the invention, the tooth cleaning composition additionally comprises sugar substitute substances, preferably non-cariogenic sugar substitute substances, and / or is free of saccharose, glucose and fructose, preferably completely free of cariogenic sugars, and / or additionally comprises humectants, preferably a humectants sugar alcohol, preferably sorbitol or xylitol, and / or- additionally comprises thickening agents, and / or- additionally comprises one or more anti-caries agents, preferably one or more fluorides, and / or- additionally comprises one or more further physiologic cooling agents different from the compounds listed above.

[0059] Particularly preferred for use in teeth cleaning compositions according to the invention are sugar substitutes, which are sweeteners such as sweeteners and sugar substitutes or mixtures thereof, which are selected from the group consisting of: Sweeteners such as in particular acesulfame-K, aspartame, cyclamate (and its Na and Ca salts), neohesperidin dihydrochalcone, sucralose and saccharin (and its Na, K and Ca salts). Vegetable sweeteners can also be used, such as glycyrrhicin and thaumatin. Acesulfame-K, aspartame, cyclamate, Na-cyclamate, saccharin, Na-saccharin and sucralose are particularly preferred; and Sugar substitutes, preferably sugar alcohols, in particular isomaltitol (E 953), lactitol (E 966), maltitol, mannitol (E 421), sorbitol (E 420), xylitol (E 967) and mixtures thereof.

[0060] A preferred tooth cleaning composition is free of sucrose, glucose and fructose and preferably completely free of cariogenic sugars. This is of course particularly true when a preferred tooth cleaning composition according to the invention contains sugar substitutes, preferably non-cariogenic sugar substitutes as discussed above.

[0061] A preferred tooth cleaning composition according to the invention (in particular a tooth cleaning composition according to the invention already described above as preferred) additionally contains humectants (e.g. glycerin). Such humectants are preferably humectant sugar alcohols such as sorbitol or xylitol. The use of a humectant sugar alcohol corresponds to the use of a sugar substitute and a humectant at the same time.

[0062] A preferred tooth cleaning composition according to the invention (in particular a tooth cleaning composition according to the invention already described above as preferred) additionally contains thickeners, preferably selected from the group consisting of: polyethylene glycols, Laponite®, carboxymethylcellulose, xanthan gum, tragacanth, locust bean gum, gellan, guar gum, gum arabic , carrageenans, alginic acid, alginates, pectins, fumed silica, bentonites, magnesium aluminum silicates and mixtures thereof. Among those mentioned, hydrocolloids are particularly suitable as thickeners for use in a tooth cleaning composition according to the invention.

[0063] A tooth cleaning composition according to the invention (in particular a tooth cleaning composition according to the invention already described above as preferred) preferably additionally contains one or more anti-caries active ingredients. The anti-caries active ingredient(s) is usually one or more fluorides, organic or inorganic fluorides being able to be used. Preferred fluorides for use in a tooth cleaning composition according to the invention are, for example, amin fluoride, sodium fluoride, potassium fluoride, sodium monofluorophosphate, quaternary ammonium fluorides and sodium fluorosilicate. Zinc fluoride and tin(ll) fluoride are also preferably used in individual cases. It is preferred to use a total amount of 0.01 to 0.2% by weight of fluorine in the form of one of the compounds mentioned or in the form of another compound that provides fluoride in a suitable manner. As already mentioned above, amine fluorides may cause a bitter note which is effectively masked by the aroma composition according to the invention.

[0064] A tooth cleaning composition according to the invention preferably additionally contains one or more further physiological cooling agents, which are not already part of the aroma composition. The additional physiological cooling active ingredient(s) are preferably selected from the group consisting of: Menthol, Menthol glyceryl acetal, Menthol glyceryl ketal, Menthol menthyl ether, Menthone glyceryl acetal, Menthone glyceryl ketal, Menthoxy- 1,2-propandiol, Menthoxy-2-methyl-1,2-propanediol, Menthyl acetate, Menthyl ethylene glycol carbonate, Menthyl formiate, Menthyl glutamate, Menthyl glycerol carbonate, Menthyl hydroxy isobutyrate, Menthyl isobutyrate, Menthyl lactate, Menthyl malonate, Menthyl methyl ether, Menthyl N-ethyl oxamate, Menthyl propylene glycol carbonate, Menthyl pyroglutamate, Menthyl-(2-methoxy)acetate, Menthyl-(2-methoxyethoxy)acetate, Menthyl succinate, O-Menthyl succinic acid ester amide, O-Menthyl succinic acid ester-NN- (dimethyl)amide, Menthane carboxylic acid-N-(4-cyanophenyl)-amide, Menthane carboxylic acid-N-(4-cyanomethyl-phenyl)-amide, Menthane carboxylic acid-N-ethylamide (WS-3), (WS-4), Noc-(menthane carbonyl) glycine ethylester (WS-5), (1 R,2S,5R)-N-(4-Methoxyphenyl)-5- methyl-2-(1-isopropyl)cyclohexane-carboxamide (WS-12), (WS-14), 2,3-dimethyl-2-(2- propyl)-butyric acid-N-methylamide (WS23), Isopulegol acetate, p-Menthane-3,8-diol, Cubebol, 3-Methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one), Tetrahydropyrimidine-2-one, N- (2-(pyridin-2-yl)ethyl)-3-p-menthane-carboxamide, [(1R,2S,5R)-2-isopropyl-5-methyl- cyclohexyl] 2-(ethylamino)-2-oxo-acetate, and mixtures thereof.

[0065] It is preferred to use one or more additional physiological cooling agents which, although they cause a physiological cooling effect, but at the same time do not cause any or no relevant taste effect.

[0066] The total amount of other physiological cooling agents which, in addition to the cooling agents already present in a preferred embodiment of the aroma composition are present as an additional component in a tooth cleaning composition according to the invention is preferably in the range from 0.01 to 3.0% by weight, preferably in the range of 0,025 to 1.0% by weight, more preferably in the range from 0.05 to 0.50% by weight, in each case based on the total weight of the tooth cleaning composition according to the invention.

[0067] In a preferred embodiment according to the invention, the tooth cleaning composition according to the invention can be a toothpaste, a toothpaste gel, a mouthwash or a tooth powder. In case the tooth cleaning composition is a toothpaste or a toothpaste gel, the tooth cleaning composition according to the invention comprises the aroma composition as described above in an amount from 0.1 to 5 weight percent, calculated on the total weight of the tooth cleaning composition. More preferably, the tooth cleaning composition according to the invention comprises the aroma composition as described above in an amount from 0.2 to 2 weight percent, calculated on the total weight of the tooth cleaning composition. In case the tooth cleaning composition according to the invention is a mouthwash, the tooth cleaning composition according to the invention comprises the aroma composition as described above in an amount from 0.05 to 3 weight percent, calculated on the total weight of the tooth cleaning composition, preferably from 0.1 to 0.5 weight percent, calculated on the total weight of the tooth cleaning composition.

[0068] Another object of the present invention refers to the use of the aroma composition described above for masking salty and bitter notes in tooth cleaning compositions. Preferably, the three different alkyl aryl ether as part of the aroma composition are propenyl guaethol, anisyl alcohol and 4-methyl guaiacol and / or the at least one alpha hydroxy ketoneis acetoin; and wherein the compounds of the aroma composition for the purpose of masking are present in mixture with one or more further aroma substances selected from the group consisting of acethylmethylcarbinol, furaneol, heliotropin and / or lactones (c9-c12) and / or one or more cooling substances selected from the group consisting of menthol, menthone, isomenthone, carvone, 1,2-dihydrocarvone, piperitone, menthyl acetate, menthyl methyl ether, 1,8-cineole, cinnamic aldehyde and methyl salicylate, preferably from the group consisting of menthone, isomenthone, carvone and piperitone.

[0069] It is understood that with regard to the use according to the invention, the preferred embodiments discussed above with regard to the aroma composition according to the invention as well as with regard to the tooth cleaning composition according to the invention apply accordingly.

[0070] Another object of the present invention refers to a method for masking salty and bitter notes in a tooth cleaning composition, comprising the following steps:Mixing of(a) the aroma composition described above with(b) compounds in tooth cleaning compositions having salty and bitter notes, preferably betaines, sarcosinates, cetyl pyridinium chloride, chlorhexidine, amine fluoride, sodium bicarbonate, pyrophosphates, potassium and / or strontium salts, as well as(c) further tooth cleaning components.

[0071] Preferably, the weight ratio of the aroma composition to the total weight of compounds in tooth cleaning compositions having salty and bitter notes is in the range from 1:10 to 1:1000, preferably in the range from 1 :20 to 1:050, particularly preferably in the range from 1:40 to 1:100.

[0072] It is understood that with regard to the method according to the invention, the preferred embodiments discussed above with regard to the aroma composition according to the invention as well as with regard to the tooth cleaning composition according to the invention apply accordingly.

[0073] The present invention is explained in more detail below using examples, although the invention is not limited to the following examples.

[0074] Unless otherwise stated, all (quantity) information refers to weight.EXAMPLESExample 1General set up

[0075] The masking effect of the aroma composition according to the invention was tested by a sensory evaluation in different tooth cleaning compositions (toothpaste). Main ingredients of the aroma composition according to the invention are the following:

[0076] Main ingredients of the tooth cleaning composition 1 are the following: Water demineral. 27,16%, Sorbitol 70%ig 45%, Trisodiumphosphat 0,1%, Saccharin 450x 0,2%, Sodiummonofluorphosphate 1,14%, PEG 1500 5%, abrasive Silica 10%, Thickening Silica 8%, Aroma composition 1,3 %, Sodiumcarboxymethylcellulose 1,1%, Betain(Cocamidopropylbetain) 1%

[0077] Main ingredients of the tooth cleaning composition 2 are the following: Gylcerin 25%, PEG 1500 5%, water 20,08%, Aroma composition 1,2%, Sodiumfluoride 0,32%, Saccharin 450x 0,2%, abrasive Silica 8%, thickening silica 8%, Sodiumcarboxymethylcellulose 0,7%, Sodiumbicarbonate (baking soda) 30%, sodiumlaurylsulfate 1,5%

[0078] Main ingredients of the tooth cleaning composition 3 are the following: Sodium Bicarbonate 62 %, Water demineral. 26,4%, Glycerine 8%, Aroma composition 1,3%, Sodium carboxymethyl cellulose 1 %, Betain (cocoamidopropylbetaine) 1%, Saccharine 0,3%.

[0079] The test was carried out with a panel of 13 experienced extern panelists in order to investigate the overall sensory performance of the aroma composition according to the invention and their masking effect in comparison to a standard sample (aroma composition of the state of the art), focusing on bitter (tooth cleaning composition 1) and salty (tooth cleaning composition 2) taste perception.

[0080] The panel evaluated the toothpaste samples in introduction sessions collecting all the relevant descriptors, definitions and time measurement points. In the next sessions "test measurement" and "profiling with replication" the panel evaluated the intensities on an unstructured line scale (0=very weak 100=very strong). Each panelist evaluated the samples twice in the profiling sessions in a randomized sample order. In the following figures, the mean values are illustrated.

[0081] Evaluation of bitter masking

[0082] It can be seen from Figure 1 that the aroma composition according to the state of the art and the aroma composition according to the invention show nearly the same flavor profile during brushing. This means that the compounds of the aroma composition according to the invention do not have a strong taste of their own and therefore have no negative effects on the aroma profile.

[0083] Figure 2 shows that until 10 minutes after brushing the test sample containing the aroma composition according to the invention showed significantly reduced intensities of bitter aftertaste perception.

[0084] Evaluation of salty masking

[0085] Figure 3 shows that the aroma composition according to the present invention showed no change in flavor profile during brushing compared to the aroma composition of the state of the art. This means that the compounds of the aroma composition according to the invention do not have a strong taste of their own and therefore have no negative effects on the aroma profile.

[0086] Figure 4 shows that the test sample containing the aroma composition according to the invention showed significantly reduced intensities of salty aftertaste perception directly after brushing.

Claims

AMENDED CLAIMS received by the International Bureau on 04 March 2025 (04.03.2025)1. Aroma composition for masking salty and bitter notes in tooth cleaning compositions comprising(a) at least three different alkyl aryl ether;(b) at least one alpha hydroxy ketone; and(c) at least one aroma substance wherein component (c) is different from components (a) and (b).

2. The aroma composition according to claim 1, wherein the alkyl aryl ethers are selected from the group consisting of propenyl guaethol, anisyl alcohol, 4-methyl guaiacol, eugenol, isoeugenol, anethole, 2-Methoxy-4-vinylphenol.

3. The aroma composition according to claim 1 and / or 2, wherein the alpha hydroxy ketone is selected from the group consisting of acyloin.

4. The aroma composition according to at least one of the preceding claims, wherein the at least one aroma substance is selected from the group consisting of Acetophenone, acethylmethylcarbinol, allyl caproate, aromadendrene, alpha-ionone, alpha-pinene, beta-pinene, beta-ionone, anisaldehyde, anisyl acetate, anisyl formate, benzaldehyde, benzothiazole, benzyl acetate, benzyl alcohol, benzyl benzoate, bergamotene, bisabolol, beta-ionone , borneol, butyl butyrate, butyl caproate, butylidenephthalide, dela-carene, carvone, camphene, camphor, carveol, carvyl acetate, caryophyllene, caryophyllene oxide, cineole, cinnamyl acetate, citral, citronellol, citronellal, citronellyl acetate, cyclohexyl acetate, cymol, damascene, decalactone, dihydrocoumarin, Di hydrocarvone, dimethyl anthranilate, dimethyl anthranilate, dodecalactone, ethoxyethyl acetate, ethyl butyric acid, ethyl butyrate, ethyl caprinate, ethyl caproate, ethyl crotonate, ethyl furaneol, ethyl guaiacol, ethyl isobutyrate, ethyl isovalerianate, ethyl lactate, ethyl methyl butyrate, ethyl propionate, eucalyptol, eudesmol, ethylheptylate, 4-(p-hydroxyphenyl)- 2-butanone, lactones (c9-c12), in particular gamma-decalactone, farnesene, fenchol, geraniol, geranyl acetate, geranyl acetate, grapefruit aldehyde, gualene, guaiol, methyl dihydrojasmonate heliotropin, 2-heptanone, 3-heptanone, 4-heptanone, trans-2-heptenal, cis-4-heptenal, trans-2-hexenal, cis-3-hexenol, trans-2-hexenoic acid, trans- 3-hexenoic acid, cis-2-hex- enyl acetate, cis-3-hexenyl acetate, cis-3-hexenyl caproate, trans-2-hexenyl caproate, cis-3-hexenyl formate, cis-2-hexyl acetate, cis-3-hexyl acetate, trans-2- Hexyl acetate, cis-3-hexyl formate, humulene, para-hydroxybenzylacetone, isoamyl alcohol, isoamylisovalerianate, isobutyl butyrate, isobutyraldehyde, isomenthone, isopropylmethylthiazole, lauric acid, leavulinic acid, limonene, linalool, linalool oxide, linalyl acetate, menthol, menthofuran, Men clay, menthyl acetate, methyl anthranilate, Methylbutanol, methylbutyric acid, 2-methylbutylacetate, methylcaproate, methylcinnamate, 5-methylfurfural, 3,2,2-methylcyclopentenolone, 6,5,2-methylheptenone, methyldihydrojasmonate, methyljasmonate, 2-methylmethylbutyrate, 2-methyl-2-pentenolic acid, methylthiobutyrate, 3,1 -methylthiohexanol, 3-methylthiohexyl acetate, myrcene, nerol, nerolidol, neryl acetate, trans, trans-2,4-nonadienal, 2,4-nonadienol, 2,6-nonadienol, 2,4-nonadi- enol, nootkatone, ocimene, delta octalactone, gamma octalactone, 2-octanol, 3-octanol, 1,3-octenol, 1 -octyl acetate, 3-octyl acetate, palmitic acid, paraldehyde, phellandrene, pentanedione, phenylethyl acetate, phenylethyl alcohol, phenylethyl alcohol, phenylethyl isovalerate, piperonal, propionaldehyde, propyl butyrate, Pulegone, pulegol, sabinene hydrate, selinene, sinensal, sulfurol, terpinene, terpineol, terpinolene, 8,3-thi- omenthanone, 4,4,2-thiomethylpentanone, thymol, delta-undecalactone, gamma-un- decalactone, valencene, valeric acid, ethyl vanillin isobutyrate (= 3-ethoxy-4-isobutyr- yloxybenzaldehyde), 2,5-dimethyl-4-hydroxy-3(2H)-furanone homofuraneol (= 2-ethyl- 4-hydroxy-5- methyl-3(2H)-furanone), homofuronol (= 2-ethyl-5-methyl-4-hydroxy- 3(2H)-furanone and 5-ethyl-2-methyl-4-hydroxy-3(2H)-furanone ), maltol, coumarin, gamma-lactones, delta-lactones, methyl sorbate, divanillin, 4-hydroxy-2(or 5)-ethyl-5(or 2)-methyl-3(2H)-furanone, 2-hydroxy-3-methyl-2-cyclopentenone, 3- Hydroxy-4, 5 -di- methyl-2(5H)-furanone, isoamyl acetate, ethyl butyrate, n-butyl butyrate, isoamyl butyrate, ethyl 3-methylbutyrate, ethyl n-hexanoate, allyl n-hexanoate, n-butyl n-hexanoate, n -Ethyl octanoate, ethyl 3-methyl-3-phenyl glycidate, ethyl 2-trans-4-cis-decadienoate, 4-(p-hydroxyphenyl)-2-butanone, 1,1 -dimethoxy-2,2,5-trimethyl -4-hexane, 2,6-dime- thyl-5-hepten-1 -al and phenylacetaldehyde, 2-methyl-3-(methylthio)furan, 2-methyl-3- furanthiol, bis(2-methyl-3-furyl) disulfide, furfuryl mercaptan, methional, 2-acetyl-2-thi- azoline, 3-mercapto-2-pentanone, 2,5-dimethyl-3-furanthiol, 2,4,5-trimethylthiazole, 2- acetylthiazole, 2,4-dimethyl- 5-ethylthiazole, 2-acetyl-1 -pyrroline, 2-methyl-3-ethylpy- razine, 2-ethyl-3,5-dimethylpyrazine, 2-ethyl-3,6-dimethylpyrazine, 2,3-diethyl-5- methylpyrazine, 3-lsopropyl-2-methoxypyrazine, 3-isobutyl-2-methoxypyrazine, 2- acetyl pyrazine, 2-pentylpyridine, (E,E)-2,4-decadienal, (E,E)-2,4-nonadienal, (E )-2-Oc- tenal, (E)-2-Nonenal, 2-Undecenal, 12-Methyltridecanal, 1 -Penten-3-one, 4-Hydroxy- 2,5-dimethyl-3(2H)-furanone, Guaiacol, 3 -Hydroxy-4, 5-dimethyl-2(5H)-furanone, 3-hy- droxy-4-methyl-5-ethyl-2(5H)-furanone, cinnamaldehyde, cinnamic alcohol, methyl salicylate, isopulegol.

5. The aroma composition according to at least one of the preceding claims, wherein the aroma composition further comprises physiological cooling agents selected from thegroup consisting of menthol, menthone, isomenthone, carvone, 1,2-dihydrocarvone, piperitone, menthyl acetate, menthyl methyl ether, 1,8-cineole, cinnamic aldehyde and methyl salicylate, preferably from the group consisting of menthone, isomenthone, carvone and piperitone.

6. The aroma composition according to at least one of the preceding claims, wherein the at least three different alkyl aryl ether are propenyl guaethol, anisyl alcohol and 4-methyl guaiacol.

7. The aroma composition according to at least one of the preceding claims, wherein the at least one alpha hydroxy ketone is acetoin.

8. The aroma composition according to at least one of the preceding claims, wherein the at least one aroma substance is selected from the group consisting of acethylmethyl- carbinol, furaneol, heliotropin and / or lactones (c9-c12), in particular delta-decalactone.

9. The aroma composition according to at least one of the preceding claims, wherein the at least three different alkyl aryl ether are present in an amount from 0.01 to 10 weight percent, calculated on the total weight of the aroma composition.

10. A tooth cleaning composition comprising the following components:(i) the aroma composition according to claims 1 to 9,(ii) cleaning body(iii) one or more surface-active substances, preferably betaine(iv) one or more anti-microbial agents, preferably chlorhexidine.

11. The tooth cleaning composition of claim 10, wherein the composition additionally comprises sugar substitute substances, preferably non-cariogenic sugar substitute substances, and / or is free of saccharose, glucose and fructose, preferably completely free of cariogenic sugars, and / or additionally comprises humectants, preferably a humectants sugar alcohol, preferably sorbitol or xylitol, and / or additionally comprises thickening agents, and / or additionally comprises one or more anti-caries agents, preferably one or more fluorides and / or additionally comprises one or more further physiologic cooling agents different from the compounds listed in claim 5.

12. Use of the aroma composition according to claims 1 to 9 for masking salty and bitter notes in tooth cleaning compositions.

13. The use according to claim 12, wherein the three different alkyl aryl ether are propenyl guaethol, anisyl alcohol and 4-methyl guaiacol and / or the at least one alpha hydroxy ketone is acetoin; and wherein the compounds of the aroma composition for the purpose of masking are present in mixture with one or more physiological cooling agents selected from the group consisting of menthol, menthone, isomenthone, carvone, 1,2-dihydrocarvone, piperitone, menthyl acetate, menthyl methyl ether, 1,8-cineole, cinnamic aldehyde and methyl salicylate, preferably from the group consisting of menthone, isomenthone, carvone and piperitone.

14. A method for masking salty and bitter notes in a tooth cleaning composition, comprising the following steps: mixing of(a) the aroma composition according to claims 1 to 9 with(b) compounds in tooth cleaning compositions having salty and bitter notes, preferably sodium bicarbonate and betaine, as well as(c) further tooth cleaning components.

15. The method according to claim 14, wherein the weight ratio of the aroma composition to the total weight of compounds in tooth cleaning compositions having salty and bitter notes is in the range of 1:10 to 1:1000.

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