JPS6260367B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dentifrice composition having a distinctive taste.

Generally, toothpaste contains cleaning abrasives, thickening agents, wetting agents,
It consists of foaming agents, medicinal agents, sweeteners, colorants, cooling agents, etc. Toothpaste is used in the oral cavity, and in addition to cleaning and sterilizing the teeth and oral cavity, as well as providing a refreshing and refreshing feeling, the taste itself is an issue.
When used, it is desirable to provide a pleasant and attractive taste and satisfy the taste of the user.

Traditionally, peppermint oil, spearmint oil, peppermint oil, peppermint oil, menthol, carvone, etc. have been widely used as toothpaste refreshing agents, but these have been purified by distillation etc. to remove unpleasant odors and tastes. things are used. Although such refined products have a refreshing feeling, they have a monotonous taste that lacks subtle flavor and are unpalatable. Regarding the flavor felt in the oral cavity,
Volatile substances appeal to the senses, such as aroma, and non-volatile substances sense taste, but since commonly used substances such as peppermint, oil, menthol, and carvone are volatile substances, it is natural that they lack umami. It is.

Therefore, the present inventor has conducted various studies on dentifrice compositions with excellent taste, and found that they transformed tea leaves, especially black tea leaves, into extremely fine particles and incorporated them into dentifrice materials. The present invention was completed based on the discovery that it exhibits a characteristic taste when used.

That is, the present invention is a dentifrice composition characterized by containing black tea leaves ground into a paste with a particle size of 1 to 50 microns with water or water containing sugar or polyhydric alcohol. The purpose is to provide a dentifrice composition that has an attractive taste and satisfies the preference of the user.

Generally, tea is unfermented tea (green tea) due to the manufacturing process.
It is broadly divided into semi-fermented tea (oolong tea, pouchong tea) and fermented tea (black tea). Since green tea is steamed or roasted in the first step of production, the enzymes in the tea leaves are inactivated, and there is almost no change in the components due to the enzymes. Baozhong tea is made by withering in the sun for a short period of time, then withering indoors, and then roasting in a pot when the characteristic floral aroma is produced. In contrast,
Black tea is made by withering, rolling, and fermenting tea leaves. During these steps, the components in the tea leaves change in various ways, producing a wide variety of aromatic substances that differ significantly from the aroma of green tea. Become.

In the present invention, when using a paste made from green tea leaves, it is undesirable because it has a strong green note and contains astringent taste and bitterness. No, the taste remains and the result is not satisfactory. However, when using a paste made from black tea leaves, the unique fruit and floral aromas harmonize well with the mint aroma, and the paste exhibits a mellow and desirable taste.

To produce the black tea leaf paste used in the present invention, black tea leaves are ground together with water or water containing sugars or polyhydric alcohols. In other words, by enveloping black tea leaves in liquid and grinding them, the active ingredients of black tea leaves are not volatilized into the air, but are retained in an aqueous solution, and fluidity is imparted. Grinding can proceed more smoothly.

Examples of the saccharide used here include liquid isomerized sugar, sugar, and sorbitol, and examples of the polyhydric alcohol include glycerin and propylene glycol, which are selected from those safe as food additives.

The amount of water or water containing sugars or polyhydric alcohol used is preferably 1 to 9 times the weight of black tea leaves. Water containing sugars or polyhydric alcohols can be used in an aqueous solution containing up to 75% sugars or polyhydric alcohols, preferably 10 to 75%; A mixture of the above may also be used.

When the size of the solid particles of black tea leaf paste is large, it gives a foreign body sensation in the mouth, so it is desirable that the particles are fine, and the size of the particles is suitably 1 to 50 microns. In order to grind the black tea leaves into such fine particles, the grinding wheels must be placed between two whetstones rotating at high speed, and the gap between the whetstones should be 1/100 to 1/100.
This can be achieved by using a precision powerful rotary mill that can be adjusted to an accuracy of 1/1000 mm. Thus, the creamy black tea leaf paste that comes out of the mill has a distinctive taste.

The black tea leaf paste obtained as described above can be incorporated into a dentifrice composition without any problem. That is, this paste is mixed with cleaning abrasives such as insoluble sodium metaphosphate, light calcium carbonate, heavy calcium carbonate, and dicalcium phosphate, which are commonly used for tooth brushing; sweeteners such as saccharin; humectants such as glycerin; Even if it is mixed with a thickening agent such as dium carboxymethyl cellulose; a foaming agent such as sodium lauryl sulfate; a medicinal agent; a fragrance, a coloring agent, etc., there will be no hindrance to their properties and purpose of use.

The amount of black tea leaf paste to be incorporated into the dentifrice composition is selected depending on the desired palatability or the relationship with the amount of other materials. It is usually used in a dentifrice composition containing 0.01 to 0.3% by weight, preferably 0.05 to 0.2% by weight.

The dentifrice composition of the present invention can be configured into any product form such as toothpaste, moistened dentifrice, powdered dentifrice, and water dentifrice. Moreover, the dentifrice composition of the present invention can be manufactured according to the manufacturing method of each dentifrice, except for incorporating the above black tea leaf paste during its manufacture.

Thus, compared to conventional toothpastes, the dentifrice composition of the present invention imparts a characteristic umami taste to the oral cavity when used, and its desirable taste further enhances its commercial value.

Next, the present invention will be explained in more detail by giving test examples and examples.

Test Example (Flavor Sensory Test) The toothpaste (A) of Example 1 below was compared with the toothpaste (B) produced in the same manner as described in Example 1 except that black tea leaf paste was not added.

(i) Test method After washing the inside of the panel's mouth, the panel was divided into two groups, and one group used (A) first, then washed the inside of the mouth, and then used (B) to taste the flavor. compared. The other group used Sakizu (B), washed their mouths, and then used (A) to compare the flavors.

(ii) Number of test results panels 50 people said ``(A) has a better flavor'' 29 people said ``(A) has a better flavor'' 7 people said ``I can't say either way'' 14 people The results showed a significant difference with a 5% risk rate in the chi-square test using the two-point comparison method.

Example 1 10g of black tea leaves, 80g of sorbitol 70% aqueous solution,
Mix 10g of water and use an upright high-speed rotary mill directly connected to the motor to rotate the grinding wheels at 3,500 revolutions per minute through the gap between the two built-in carborundum grinding wheels. Gap width 1/1000
Grinding was performed with fine adjustment to the millimeter. Occasionally, the sample is examined under a microscope to determine if the particle size is between 1 and
Grinding was repeated until the particle size was 50 microns.
Thus the black tea leaf paste of 66° Brix 95
I got g.

A toothpaste was manufactured using this black tea leaf paste according to the following recipe.

Toothpaste (wt%) Dibasic calcium phosphate 50 Sodium carboxymethyl cellulose 1 Sodium lauryl sulfate 1.5 Glycerin 25 Satucharin 0.15 Medicinal agent Appropriate amount Black tea leaf paste obtained as above 0.05 "Two Paste Flavor X-9424" (Fragrance manufactured by Takasago International Co., Ltd.) 0.9 Appropriate amount of water 100 Example 2 Using the black tea leaf paste described in Example 1,
A toothpaste was manufactured according to the following recipe.

Toothpaste (wt%) Heavy calcium carbonate 33 Light calcium carbonate 22 Sodium carboxymethyl cellulose 1 Sodium lauryl sulfate 1.4 Glycerin 25 Saccharin 0.15 Medicinal agent Appropriate amount Black tea leaf paste described in Example 1 0.2 Two paste flavor "
A moist toothpaste was manufactured according to the following recipe.

Hyunsei toothpaste (wt%) Dicalcium phosphate 50 Calcium carbonate 30 Glycerin 9 Sodium lauryl sulfate 1.4 Satucharin 0.1 Medicinal agent Appropriate amount Black tea leaf paste described in Example 1 0.1 "Two Paste Flavor X-9424" (Takasago Flavor Fragrance manufactured by Kogyo Co., Ltd.) 0.9 Appropriate amount of water 100 Example 4 Using the black tea leaf paste described in Example 1,
A powdered toothpaste was manufactured according to the following recipe.

Powder toothpaste (wt%) Light calcium carbonate 49 Heavy calcium carbonate 33 Glycerin 5 Sodium lauryl sulfate 1 Satukarin 0.15 Medicinal agent Appropriate amount Black tea leaf paste described in Example 1 0.05 "Two Paste Flavor X-9424" (Takasago) Fragrance manufactured by Kogyo Kogyo Co., Ltd.) 0.8 Water appropriate amount 100

Claims (1)

[Claims] 1. A toothpaste composition characterized by containing black tea leaves ground into a paste with a particle size of 1 to 50 microns with water or water containing sugar or polyhydric alcohol.