JP2654522B2 - Aqueous solution composition of thiamine lauryl sulfate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an aqueous solution composition of thiamine lauryl sulfate used as a food additive.

[0002]

BACKGROUND OF THE INVENTION Thiamine lauryl sulfate is
It is widely used as a nutrient enhancer for vitamin B ₁ supplementation or as a food shelf life improver. This thiamine lauryl sulfate has a solubility in water of 0.002 at 20 ° C.
Because it is as low as 5%, it is often used as a powder formulation.

However, powder preparations have poor workability and may not be mixed uniformly depending on foods. In view of these points, it is generally better to use liquid preparations.

Accordingly, many attempts have been made to formulate thiamine lauryl sulfate in liquid form for the above reasons.
As described above, the solubility of thiamine lauryl sulfate is poor, especially at low temperatures, where crystals are easily precipitated, and furthermore, the solvent permitted as a food additive is limited. Liquid formulation of salts has been delayed.

Conventionally, in the liquid preparation of thiamine lauryl sulfate for food additives, it is considered that the presence of ethyl alcohol is indispensable for preventing the thiamine lauryl sulfate from crystallizing at low temperatures.
Alternatively, a combination of ethyl alcohol and another solvent recognized as a food additive is used.

However, in the case of using ethyl alcohol alone, low concentration of ethyl alcohol cannot prevent thiamine lauryl sulfate from crystallizing at low temperature. Problems such as hazardous substances and alcohol odor occurred, and the concentration of thiamine lauryl sulfate could not be increased from the viewpoint of stability. On the other hand, when ethyl alcohol and another solvent, for example, acetic acid, are used in combination, the stability at low temperatures is improved as compared with the case of using ethyl alcohol alone, but the odor of ethyl acetate is generated with the passage of time.
Therefore, when this is used as a food additive, the above-mentioned ethyl acetate odor may not be allowed depending on the food, and the addition thereof causes a problem that the value as the food is reduced or lost. In addition, there is a combination of ethyl alcohol and propylene glycol, glycerin, etc., but these are inferior in the effect of preventing crystal precipitation than the case of combining ethyl alcohol and acetic acid, and furthermore, the use and amount of the food additive are used. And there are many problems.

[0007] Vegetable vinegar and brewed vinegar are listed as typical safe solvents for foods, but since these contain a large amount of water, thiamine lauryl sulfate hardly dissolves. Even if the mixture is forcibly dissolved by heating, if the temperature is lowered, crystals will be precipitated again. Therefore, a liquid preparation in which thiamine lauryl sulfate is dissolved in these vinegars has not yet been put to practical use. Regarding synthetic acetic acid for food additives, thiamine lauryl sulfate precipitates as the temperature decreases in a liquid preparation having an acetic acid concentration of about 40 to 50% by weight. There is no example of using synthetic acetic acid. Further, a liquid preparation of an aqueous solution of thiamine lauryl sulfate using synthetic acetic acid has not been developed for the purpose of suppressing the crystal deposition of thiamine lauryl sulfate at such a low temperature.

[0008]

[Means for Solving the Problems] The present inventors have conducted intensive studies to solve such problems, and as a result, as a single solvent of thiamine lauryl sulfate, it has been found to be effective in preventing crystal precipitation at low temperatures. In an acetic acid aqueous solution that was considered not to be present, at a certain concentration or more, the effect of preventing crystal precipitation at low temperatures was obtained, and even at the high concentration of the above liquid preparations that could not have been considered, crystals at low temperatures could not be obtained. They have found that precipitation can be prevented, and have completed the present invention. That is, the present invention provides 2 to 30% by weight of thiamine lauryl sulfate,
An aqueous solution consisting of 7 to 90% by weight and the balance water,
And the ratio of acetic acid to the ratio of acetic acid to water is 95% by weight.
Of thiamine lauryl sulfate characterized by the following
Those of the food additive for aqueous solution composition.

In general, the higher the concentration of thiamine lauryl sulfate is, the more economically advantageous the liquid formulation of thiamine lauryl sulfate is. However, when the concentration exceeds 30% by weight, the viscosity rapidly increases at low temperatures, In addition, the ratio of acetic acid to the ratio of acetic acid to water in the aqueous acetic acid solution exceeds 95% by weight, and icing of acetic acid itself is likely to occur, which causes a problem in handling acetic acid. Therefore, the content of thiamine lauryl sulfate must be 30% or less, and the ratio of acetic acid to the ratio of acetic acid to water must be 95% or less. On the other hand, when the content of thiamine lauryl sulfate is less than 2%, the amount of acetic acid is relatively increased as compared with the amount of thiamine lauryl sulfate. In addition, it is disadvantageous in economic aspects such as raw material costs and freight costs. On the other hand, when the acetic acid content is less than 57%, it is impossible to completely prevent thiamine lauryl sulfate from crystallizing at low temperatures.

From the viewpoint of economic efficiency and reduction of the odor of acetic acid when added to foods, it is necessary to prepare a liquid preparation of thiamine lauryl sulfate using as low a concentration as possible of acetic acid and as high as possible. Preferably, the acetic acid concentration need not be set to 90% or more. As acetic acid to be used, for example, synthetic acetic acid, vinegar, brewed vinegar, or a mixture thereof can be used.

A predetermined amount of each of the above components is blended, stirred and mixed to dissolve with thiamine lauryl sulfate,
An aqueous composition of the present invention is obtained. The order of mixing or mixing the components is not particularly limited, and may be appropriately performed.

The aqueous solution composition of thiamine lauryl sulfate according to the present invention contains components other than water, thiamine lauryl sulfate and acetic acid, such as citric acid, malic acid, fumaric acid, phytic acid, lactic acid, adipic acid, glucone Organic acids such as acid, tartaric acid, succinic acid and / or salts thereof, or sugar, D
-A sweetener such as sorbitol can be added as appropriate.

[0013]

According to the aqueous solution composition of the present invention, it is possible to provide a stable liquid preparation having a high concentration without substantial precipitation of crystals even at a low temperature. Can be added relatively easily, and can be added uniformly, and an excellent product can be provided.
It is also advantageous for improving workability in the manufacturing process.

[0014]

The following examples are provided to further clarify the features of the present invention.

[0015]

Reference Example 1 Table 1 shows experimental data on low-temperature stability when thiamine lauryl sulfate was dissolved in ethyl alcohol.

[0016]

[Table 1]

According to these results, when ethyl alcohol is used as a solvent, at a content of about 2% of thiamine lauryl sulfate, if the concentration of ethyl alcohol is 55% or more, it is stable even at a low temperature. The problem remains. On the other hand, when thiamine lauryl sulfate is contained at 15%, it is difficult to obtain a stable thiamine lauryl sulfate liquid preparation which does not precipitate at low temperatures in an ethyl alcohol solvent.

In consideration of the form of the product, it is considered that a high-density product is more advantageous in terms of transportation cost per unit weight, container cost, storage area, and the like. Therefore, it can be understood from this that the ethyl alcohol solvent has various problems.

[0019]

Example 1 An aqueous solution of thiamine lauryl sulfate in acetic acid was prepared, comprising 2% by weight of thiamine lauryl sulfate, 57% by weight of glacial acetic acid and 41% by weight of water. This was kept in a constant temperature room at -3 ° C for 30 days. Thereafter, precipitation of crystals was examined, but no precipitation was observed, and a stable state was maintained.

[0020]

Examples 2 to 10 An acetic acid aqueous solution of thiamine lauryl sulfate was prepared in the same manner as in Example 1 except that the mixing ratios of thiamine lauryl sulfate, various acetic acids and water were changed as shown in Table 2, and the test was conducted. Was. As a result, no precipitation of crystals was observed, and a stable state was maintained.

[0021]

[Table 2]

[0022]

COMPARATIVE EXAMPLE 1 As an example of an aqueous solution deviating from the mixing ratio of the present invention, an aqueous acetic acid solution of thiamine lauryl sulfate containing 2% by weight of thiamine lauryl sulfate, 56% by weight of glacial acetic acid and 42% by weight of water was prepared. Then, when this was placed in a constant temperature room at -3 ° C, crystals precipitated on the second day.

[0023]

Comparative Examples 2 to 12 As an aqueous solution deviating from the compounding ratio of the present invention, an aqueous solution of thiamine lauryl sulfate in acetic acid was prepared at a compounding ratio as shown in Table 3, and then a test was conducted.
Table 3 also shows the results.

[0024]

[Table 3]

[0025]

Test Example 1 The aqueous compositions prepared in the respective Examples and Comparative Examples were added to cooked rice to conduct a taste test and a test for a shelf life.

After 180 ml (159 g) of rice was added three times with water, 200 ml of water in which the aqueous solution composition obtained in Example 5 was dissolved was added, and after standing for about 1 hour, rice was cooked in an electric kettle. After aging for 15 minutes, it was left open in the room for another 30 minutes, and then placed in a container filled with water and lightly covered with wrap. Store this in a constant temperature room at 30 ° C, mold,
The state of generation of odor was observed. The container is 27 × 12 × 7
(Height) cm, there was a net shelf at the bottom, and the water was stretched under the net so that it did not come in contact with cooked rice. Further, the amount of the preservative added is the percentage of the amount added to the raw rice.

Similarly, Example 8, Comparative Examples 13 and 1
The test was also performed on the aqueous solution composition obtained in 4.
Table 4 shows the results. Table 4 also shows those without addition for comparison.

In Comparative Example 13, thiamine lauryl sulfate 1
%, 90% acetic acid 60% by weight and water 39% by weight. The acetic acid content in this composition is 54%, which is stable even at low temperatures. However, when the content of thiamine lauryl sulfate is too small, the amount of acetic acid in the food is reduced if the added amount is sufficient to obtain a sufficient effect. As a result of the relative increase compared to lauryl sulfate, the acetic acid smell was imparted to the food. Comparative Example 14 had 3.75 thiamine lauryl sulfate.
Wt%, ethyl alcohol 10 wt%, 90% acetic acid 50
% Of water and 36.25% by weight of water. This was stable even at low temperatures, but the food had an ethyl acetate odor.

[0029]

[Table 4]

[0030]

Claims (1)

(57) [Claims] (1) 2 to 30% by weight of thiamine lauryl sulfate,
An aqueous solution comprising 57 to 90% by weight of acetic acid and the balance of water, wherein the ratio of acetic acid to the ratio of acetic acid to water is 95%.
Food additive for aqueous solution composition of thiamine laurylsulfate, wherein the% by weight or less.