JP2000026257A - Oral composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oral composition providing plane aftertaste without leaving heavy sweet taste after the use of the composition by including a base material having sweetness, and a 1-menthol ester. SOLUTION: This oral composition contains (A) a base material having sweetness (preferably sorbitol, glycerol, propylene glycol or the like), (B) a 1-menthol ester composed of (i) 1-menthol and (ii) a 2-18C (un)saturated linear or branched aliphatic carboxylic acid or an aromatic carboxylic acid. The component B is preferably at least one kind selected from 1-menthol ester of a hydroxycarboxylic acid, especially 1-menthol ester of lactic acid, and 1-menthol esters of succinic acid and salicylic acid, and about 1×10-6-1×105 pts.wt. component B is formulated based on 100 pts.wt. component.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an oral composition such as a toothpaste. More specifically, the present invention relates to an oral composition which does not have an intense sweetness after use and has a refreshing aftertaste.

[0002]

2. Description of the Related Art Oral compositions such as toothpastes, liquid dentifrices, powdered dentifrices, gingival coatings (oral pasta preparations), and the like are usually used for storage stability, moisture retention or palatability of the compositions. For the purpose of improving the quality and the like, a base such as sorbitol and glycerin having a sweet taste is added.

[0003]

However, when an oral composition containing these bases is used, even if it is sufficiently gargled after use, a severe sweetness peculiar to these bases remains, and after use, There was a problem that a refreshing feeling could not be obtained.

[0004] Accordingly, an object of the present invention is to provide a highly palatable oral composition which has a refreshing aftertaste without leaving an intense sweetness even after use, even if it contains a sweet base. .

[0005]

SUMMARY OF THE INVENTION The present inventor has developed a specific l-
The inventors have found that menthol ester can mask an undesired aftertaste (intense sweetness) peculiar to a base having a sweet taste to make it a refreshing aftertaste, thereby completing the present invention.

That is, the present invention relates to the following components (a) and (b): (a) a base having sweetness; (b) 1-menthol and a saturated or unsaturated linear or branched chain having 2 to 18 carbon atoms. An oral composition comprising l-menthol ester composed of an aliphatic carboxylic acid or an aromatic carboxylic acid is provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, the base having the sweetness of the component (a) is not particularly limited, and is usually used for the purpose of improving the storage stability, moisturizing property or palatability of an oral composition. Conventional bases can be used.
Specific examples of the base having such sweetness include sorbitol, glycerin, propylene glycol, saccharin sodium, aspartame, d-xylose, glycyrrhizin, dipotassium glycyrrhizinate, stevia,
Fructooligosaccharides, licorice extract, xylitol and the like are preferred. One or more of these can be used.

The mixing ratio of the component (a) in the oral composition of the present invention is not particularly limited, and is appropriately determined according to the purpose of use.

In the present invention, the component (b) is used for masking the undesired aftertaste (intense sweetness) peculiar to the component (a) and imparting a refreshing feeling after use to the oral composition. Such a component (b) includes l-
An l-menthol ester composed of menthol and a saturated or unsaturated linear or branched aliphatic carboxylic acid or aromatic carboxylic acid having 2 to 18 carbon atoms is used. These can use one or more types.

The preferred 1-menthol ester of component (b) is 1-menthol hydroxycarboxylic acid ester obtained by using an aliphatic carboxylic acid or aromatic carboxylic acid having a hydroxy group as a component thereof. No. The use of l-menthol hydroxycarboxylic acid ester has the effect that the aftertaste after use is refreshed. Preferred specific examples of such l-menthol hydroxycarboxylate include l-menthol lactate, l-menthol succinate, l-menthol salicylate, and the like. One or more of these can be used.

In the present invention, the proportion of the components (a) and (b) is such that if the component (b) is too small, the masking effect is not sufficient, and if the component (b) is too large, the masking effect corresponding to the blending amount is improved. Since it cannot be expected, component (b) is preferably used in an amount of 1 × 10 ⁻⁶ to 1 × 10 ^{5 with respect} to 100 parts by weight of component (a).
Parts by weight, more preferably 1 × 10 ⁻⁴ to 1 × 10 ³ parts by weight.

On the other hand, if the proportion of component (b) in the oral composition is too small, a refreshing aftertaste is not felt, and if it is too large, the bitterness of the oral composition becomes strong and the feeling of use is reduced. Preferably it is 1 × 10 ⁻⁶ to 70% (by weight), more preferably 1 × 10 ⁻⁵ to 50% (by weight).

The oral composition of the present invention contains the components (a) and (b) as essential components from the viewpoint of sweetness and masking as described above, but has physical properties and dosage forms (for example, toothpaste, Liquid dentifrice, powder dentifrice, gingival coating, etc.)
From the viewpoint of the above, various known components can be contained.

For example, when the oral composition of the present invention is used as a toothpaste, a liquid dentifrice or a powdered dentifrice, a known water-insoluble abrasive, a binder, a wetting agent, a surfactant, a fragrance, etc. , Bactericides, preservatives, pigments, water, water-soluble fluorides, silicones, and the like.

In addition to the above components, the oral composition of the present invention contains a chlorophyll compound, ε-aminocaproic acid,
Physiologically active ingredients such as tranexamic acid, vitamin C, vitamin E, nicotinic acid ester, allantoinchlorohydroxyaluminum, azulene, lysozyme chloride, hinokitiol, protease and herbal extracts can be added.

When the oral composition of the present invention is used as a paste or liquid composition such as a toothpaste or a liquid dentifrice, a water-insoluble abrasive is used as a basic component in the composition.
It is preferable to contain 0 to 75% by weight, 0.5 to 5% by weight of a binder, and 10 to 85% by weight of a wetting agent and water. Here, the content of the water-insoluble abrasive is 2 in the case of toothpaste.
Particularly preferred is 0 to 75% by weight, and in the case of a liquid dentifrice, 10 to 30% by weight.

When the oral composition of the present invention is used as a solid composition such as a dentifrice, a water-insoluble abrasive is added as a basic component to the composition at 60 to 99% by weight. preferable.

When the oral composition of the present invention is used as a gingival coating, an oily component or a water-soluble polymer, further, a wetting agent, a surfactant, a flavor, a sweetener, a bactericide, and a preservative as described above. , A dye, water, a water-soluble fluoride, silicone, a physiologically active ingredient, and the like. In this case, an oil component or a water-soluble polymer is used as a basic component in the composition in an amount of 10 to 5%.
It is preferable to contain 0% by weight and 20 to 70% by weight of a wetting agent and water.

The oral composition of the present invention can be produced by uniformly mixing the components including the components (a) and (b) according to a conventional method.

As described above, the oral composition of the present invention contains a specific l-menthol ester as the component (b) in addition to the sweet base of the component (a). This component (b) is capable of masking the undesired aftertaste (terrible sweetness) specific to component (a). Therefore, the aftertaste after use of the oral composition of the present invention,
It will be refreshing.

[0021]

The present invention will be described below in more detail with reference to examples.

Examples 1 to 5 and Comparative Example 1 As the oral compositions of Examples 1 to 5, toothpastes having the composition shown in Table 1 were prepared according to a conventional method. However, Comparative Example 1
, A toothpaste was prepared in the same manner as in Example 1 except that the component (b) was not added.

[0023]

[Table 1]

(Evaluation) A specialized panelist brushed the teeth using the toothpastes of Examples and Comparative Examples, and after having been thoroughly gargled with water, the aftertaste according to the following evaluation criteria. Sensory evaluation was performed. Table 2 shows the results.

Evaluation criteria of aftertaste Rank criteria ：: When the intense sweetness is sufficiently masked and there is a very good refreshing feeling. ：: When the intense sweetness is masked and there is a refreshing feeling. Was not masked and the refreshing feeling was insufficient. ×: Intense sweetness was not masked and the refreshing feeling was not at all.

[0026]

[Table 2]

As shown in Table 2, the toothpastes of Examples 1 to 5 were masked with an intense sweetness and had a refreshing aftertaste.

On the other hand, the toothpaste of Comparative Example 1, which did not contain the l-menthol ester of the component (b), did not have an intensely sweet taste and did not have a refreshing aftertaste.

Therefore, from the results shown in Table 2, when the base having the sweetness of the component (a) is used, in order to mask the intense sweetness to give a fresh aftertaste, the l- It turns out that the use of menthol ester is effective.

Examples 6 to 10 and Comparative Example 2 As mouth compositions of Examples 6 to 10, mouthwashes having the composition shown in Table 3 were prepared according to a conventional method. Sensory evaluation was performed. However, in the case of Comparative Example 2, a mouthwash was prepared and sensory evaluation was performed in the same manner as in Example 6 except that the component (b) was not added. Table 4 shows the results.

[0031]

[Table 3]

[0032]

[Table 4]

As shown in Table 4, the mouthwashes of Examples 6 to 10 were masked with intense sweetness and had a refreshing aftertaste after use.

On the other hand, in the case of the mouthwash of Comparative Example 2 which did not contain the l-menthol ester of the component (b), the intense sweetness was not masked, the aftertaste of the intense sweetness remained after use, and was not a refreshing aftertaste. Was.

Accordingly, from the results in Table 4, it can be seen from the results in Table 1 that the use of the l-menthol ester of the component (b) in order to obtain a refreshing aftertaste when the sweet base of the component (a) is used. It turns out to be effective.

[0036]

The oral composition of the present invention does not have an intense sweetness after use and has a refreshing aftertaste. Therefore, the palatability of the oral composition of the present invention is high.

Claims (4)

[Claims] 1. The following components (a) and (b): (a) a base having sweetness; (b) 1-menthol and a saturated or unsaturated, linear or branched aliphatic carboxylic acid having 2 to 18 carbon atoms. Or, a composition for oral cavity comprising l-menthol ester comprising an aromatic carboxylic acid. 2. Component (a) is at least one selected from the group consisting of sorbitol, glycerin, propylene glycol, saccharin sodium, aspartame, d-xylose, glycyrrhizin, dipotassium glycyrrhizinate, stevia, fructooligosaccharide, licorice extract and xylitol. The oral composition according to claim 1, which is: 3. The oral composition according to claim 1, wherein the 1-menthol ester of the component (b) is a 1-menthol hydroxycarboxylic acid ester. 4. The oral composition according to claim 3, wherein the l-menthol hydroxycarboxylic acid ester is at least one selected from l-menthol lactate, l-menthol succinate and l-menthol salicylate.