JP4224444B2 - Sugar-coated granules and method for producing the same - Google Patents

Description

  The present invention relates to a sugar-coated granule and a method for producing the same.

  Conventionally, powders such as citric acid and ascorbic acid (vitamin C) have been used in foods and the like. However, these ingredients give a unique strong acidity to the mouth when ingested, and thus are difficult to ingest as they are. There was a problem. Moreover, when these materials are added to foods, there is a possibility that the foods may be altered by acid, so that it is difficult to use them as they are as additives. For this reason, it is considered to coat these powders with various materials (for example, sugar).

  Generally, powder and crystal coating processes are performed using a fluidized granulation coating machine. However, with this method, it has been very difficult to form a coating having a thickness sufficient to suppress acidity such as citric acid. Therefore, at present, almost no granules coated with a powder such as citric acid are commercially available.

By the way, conventionally, a sugar-coated article such as food is put into a sugar-coating rotary kettle, and then a sugar solution such as sugar syrup is introduced while rotating the sugar-coating rotary kettle, and the sugar solution is dried. A production method for producing a sugar-coated granule by forming a sugar-coated layer on the outer side of the sugar-coated material is known. According to such a method for producing a sugar-coated granule, a sugar-coated layer having a desired thickness can be obtained by repeatedly charging and drying a sugar solution, so that a coating that can suppress acidity such as citric acid when ingested. It is possible to obtain As a sugar-coating granule using such a method, for example, a sugar-coating layer in which ascorbic acid is dispersed and an ascorbic acid-containing sugar-coating product (sugar-coating granule) coated with granular food (sugar-coating product), or a nuclear component containing ascorbic acid Ascorbic acid-containing sugar-coated products having a sugar coating on them are known (see, for example, Patent Document 1 and Patent Document 2).
JP-A-8-70791 JP-A-8-70792

  However, in the conventional method for producing sugar-coated granules, when the particle diameter of the core powder (sugar-coated material) is small, the powder tends to aggregate and coating is difficult. Especially for hygroscopic powders such as citric acid and ascorbic acid, particles adhere to each other in the sugar coating process, so it is difficult to sufficiently coat the powder surface. In addition, it was not possible to obtain a sugar-coated granule capable of suppressing the deterioration of food by acid. In addition, the ascorbic acid-containing sugar-coated product described in Patent Document 2 is obtained by using a granular saccharide formed with an ascorbic acid-containing layer as a core component, and a sugar-coated granule formed using ascorbic acid powder itself as a core. is not.

  The present invention solves the above problems, and provides a method for producing a sugar-coated granule in which a powder having acidity and hygroscopicity, for example, a powder such as citric acid or ascorbic acid is covered with a sugar coating layer, An object is to provide a sugar-coated granule that is easy to ingest and is stable even when added to food.

In order to achieve the above object, the invention of claim 1 is a method for producing a sugar-coated granule in which a powder having acidity and hygroscopicity is covered with a sugar-coating layer, the hygroscopic property of the powder covering the surface of the powder. The film forming solution for reducing the amount of the solution is put into a sugar-coating rotary pot charged with the powder, and the solvent of the film-forming solution is evaporated while rotating the sugar-coating rotary pot, so that the surface of the powder is obtained. A moisture-proof film forming step for forming a moisture-proof film , and a sugar that is sufficient to wet the powder surface and not soak the whole powder while rotating the sugar-coating rotary pot to the powder that has undergone the moisture-proof film forming step. A sugar solution charging step of spraying the solution, a drying step of blowing air while rotating the sugar-coating rotary pot, and drying the powder that has passed through the sugar solution charging step; the sugar solution charging step; and the dryer Characterized by comprising a coating layer forming step of forming a coating layer by repeating.

  The invention of claim 2 further comprises a sugar powder charging step of applying the sugar powder to the powder that has undergone the sugar solution charging step while rotating the sugar-cooking rotary pot in the sugar coating granule manufacturing method according to claim 1. The drying step is a step of blowing air while rotating the sugar-coating rotary pot to dry the powder after the sugar solution charging step and the sugar powder charging step, and the sugar-coating layer forming step is the sugar solution forming step. It is a step of forming a sugar coating layer by repeating the charging step, the sugar powder charging step and the drying step.

  Invention of Claim 3 is a manufacturing method of the sugar-coated granule of Claim 1 or Claim 2, The said powder is a citric acid, It is characterized by the above-mentioned.

  Invention of Claim 3 is the sugar-coated granule manufactured by the manufacturing method of the sugar-coated granule of Claim 1 thru | or 3.

According to the sugar-coated granule production method of the present invention, the moisture-proof film is formed on the surface of the powder by the moisture-proof film forming step, so that the hygroscopicity of the powder can be reduced. For this reason, the aggregation of the powder in a sugar-coating layer formation process can be suppressed. Further, in the sugar solution charging step, the sugar solution is sprayed to such an extent that the powder surface is wet and the whole powder is not immersed while rotating the sugar-coating rotary pot. Further, in the sugar powder charging step, By applying the sugar powder to the sprayed powder, aggregation of the powder in the sugar coating layer forming step can be suppressed.

  According to the sugar-coated granule produced by the method for producing a sugar-coated granule of the present invention, a sugar-coated layer can be formed on a powder having acidity and hygroscopicity. Even in this case, stable sugar-coated granules can be obtained.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described in detail. First, various materials used for producing sugar-coated granules will be described. For the production of the sugar-coated granules, a powder that forms the core of the sugar-coated granules, a film-forming solution that covers the surface of the powder to form a moisture-proof film, and a sugar solution and a sugar powder that form a sugar-coated layer are used.

  The powder serving as the core of the sugar-coated granule is not particularly limited as long as it has a sour and hygroscopic powder, and examples thereof include citric acid and ascorbic acid. Further, the particle size of the powder is not particularly limited, but is effective when the powder is easily aggregated in the process of producing the sugar-coated granule and is 1 mm or less.

  The film-forming solution is not particularly limited as long as it contains an edible coating agent having moisture resistance, and examples thereof include shellac, zein, hemirose, yeast cell wall, paraffin wax, beeswax and the like.

  The sugar solution may be any solution containing sugar, such as monosaccharides, disaccharides, polysaccharides (sugar, lactose, maltose, xylose, isomerized lactose, etc.), sugar alcohols (palatinite, sorbitol, lactitol, A solution containing erythritol, xylitol, maltitol, mannitol, etc.). The sugar powder may be any powder containing sugar, and examples thereof include monosaccharide, disaccharide, polysaccharide, and sugar alcohol powders. These may be used alone or in combination of two or more. When sugar alcohol is used as the sugar solution and / or sugar powder, it is more preferable in terms of anti-caries, low calorie and the like.

  Various auxiliary materials can be added to the sugar solution and / or sugar powder as necessary. For example, it is possible to impart a fragrance to the sugar-coated granules by adding a fragrance and to color the sugar-coated granules by adding a coloring agent. Further, for example, the pH of the granule surface can be adjusted by adding Ca carbonate or the like. In addition, vitamins and the like may be added.

  Next, the manufacturing method of a sugar-coated granule is demonstrated. The sugar-coating granule production method includes a moisture-proof film forming step for forming a moisture-proof film on the core powder surface, and a sugar-coating layer formation for forming a sugar-coating layer by repeating a sugar solution charging step, a sugar powder charging step, and a drying step. Process.

  In the moisture-proof film forming process, the film-forming solution is put into a sugar-coating rotary pot charged with the powder that is the core of the sugar-coating granules, blown, and the solvent of the film-forming solution is evaporated while rotating the sugar-coating rotary kettle. Then, a moisture-proof film is formed on the surface of the powder. At this time, it is desirable that the amount of the film-forming solution to be introduced is such that it reaches the surface of the core powder. The moisture-proof film is desirably formed so as to cover the entire powder surface, but the entire powder surface may not necessarily be covered as long as the hygroscopicity of the powder can be reduced.

  Since the moisture-proof film is formed on the powder surface by carrying out the moisture-proof film forming step prior to the sugar coating layer forming step, it is possible to reduce the hygroscopicity of the powder. For this reason, the aggregation of the powder in a sugar-coating layer formation process can be suppressed.

  In the sugar solution charging step, the sugar solution is sprayed onto the powder on which the moisture-proof film has been formed through the moisture-proof film forming step using a spray gun or the like while rotating the sugar-coating rotary pot. At this time, it is desirable that the amount of the sugar solution to be added is such that the surface of the powder is wet and the whole powder is not immersed. Thus, the aggregation of the powder can be suppressed by applying the sugar solution to the powder in the form of a mist.

  The sugar powder charging step is performed by applying the sugar powder to the powder sprayed with the sugar solution through the sugar solution charging step while rotating the sugar coating rotary pot. At this time, the amount of the sugar powder to be added is appropriately determined according to the amount of the sugar solution charged in the sugar solution charging step, and it is preferable that the sugar solution can be adhered to the sprayed powder without excess or deficiency. In addition, as the sugar powder to be input, a powder having a sufficiently small particle size with respect to the core powder is used. As described above, the powder powder sprayed with the sugar solution is applied with the sugar powder, whereby aggregation of the powder can be suppressed. The drying process is performed by drying the powder that has undergone the sugar solution charging process and the sugar powder charging process while rotating the sugar-coating rotary pot.

  The sugar coating layer forming step is performed by repeating the sugar solution charging step, the sugar powder charging step, and the drying step until the required sugar coating layer thickness is obtained. Note that the sugar powder charging step can be omitted as appropriate when powder aggregation is not a problem in the sugar coating layer forming step. For example, the sugar solution charging step, the sugar powder charging step, and the drying step are repeated. Thus, after the sugar-coated granules have grown to such an extent that powder aggregation does not become a problem, a sugar-coated layer may be formed by repeating only the sugar solution charging step and the drying step.

  FIG. 1 shows a cross section of a sugar-coated granule obtained by the above production method for citric acid crystals. The sugar-coated granule 1 has a moisture-proof film 3 and a sugar-coated layer 4 laminated with a citric acid crystal 2 as a nucleus. According to the sugar-coated granule 1 manufactured by the sugar-coated granule manufacturing method of this embodiment, since the sugar-coated layer 4 is formed on the citric acid crystal 2, it is easy to ingest as it is and is stable even when added to food. Sugar-coated granules 1 can be obtained. In addition, the sugar-coated granule 1 obtained by making it above may be ingested as it is, and may be added to foodstuffs, such as confectionery.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to an Example at all.

(1) First, 2 kg of citrate crystals having a particle size of 0.84 mm pass of JIS sieve opening is put into a sugar-coating rotary pot having a diameter of 40 cm.
(2) Next, 60 g of 25% shellac liquid (manufactured by Gifu Shellac Manufacturing Co., Ltd., Drag BS25K) is introduced into the sugar-cooking rotary pot, and blown (air volume 1.4 m ³ / min) until no alcohol remains. Then, the inside of the sugar-coating rotary pot is rotated at 30 rpm to form a moisture-proof film.
(3) Next, 50 g of Bx30 sugar syrup (manufactured by Towa Kasei Kogyo Co., Ltd., Amalty MR) is sprayed with a spray gun. Further, when the sugar syrup has spread over the citric acid crystals, sugar powder having a particle size of JIS sieve opening of 0.074 mm path (manufactured by Towa Kasei Kogyo Co., Ltd., Resis) is applied and dried.
(4) The step (3) is repeated to obtain sugar-coated granules having a particle size of about JIS sieve opening 1.68 mm pass.
(5) Next, 20 g of Bx30 sugar syrup (manufactured by Towa Kasei Kogyo Co., Ltd., Amalty MR) is sprayed with a spray gun and dried, and this process is repeated five times.
(6) The obtained sugar-coated granules are sorted by a sizer to obtain sugar-coated granules having a JIS sieve opening of 2.00 mm pass and a particle size of 0.71 mm on.

  The sugar-coated granules obtained as described above did not give a strong sour taste unique to citric acid when ingested, and were easy to ingest even as they were. Further, even when added to food, the food was not altered for a long time.

Sectional drawing of the sugar-coated granule manufactured by the manufacturing method of the sugar-coated granule by one Embodiment of this invention.

Explanation of symbols

1 Sugar-coated granules 2 Citric acid crystals 3 Moisture-proof film 4 Sugar-coated layer

Claims (4)

A method for producing a sugar-coated granule in which a powder having acidity and hygroscopicity is covered with a sugar-coating layer,
A film-forming solution for covering the surface of the powder and reducing the hygroscopicity of the powder is put into a sugar-coating rotary pot charged with the powder, and the film-forming solution is rotated while the sugar-coating rotary pot is rotated. A moisture-proof film forming step of evaporating the solvent to form a moisture-proof film on the surface of the powder;
A sugar solution charging step of spraying a sugar solution to such an extent that the powder surface is wet and the whole powder is not immersed while rotating the sugar-coating rotary pot to the powder that has undergone the moisture-proof film forming step;
A drying process for blowing air while rotating the sugar-cooking rotary pot and drying the powder after the sugar solution charging process,
A sugar coating layer forming step of forming a sugar coating layer by repeating the sugar solution charging step and the drying step;
A process for producing a sugar-coated granule, comprising: A sugar powder charging step of applying the sugar powder while rotating the sugar-coating rotary pot to the powder subjected to the sugar solution charging step;
The drying step is a step of blowing air while rotating the sugar-coating rotary pot, and drying the powder that has undergone the sugar solution charging step and the sugar powder charging step,
The method for producing a sugar-coating granule according to claim 1, wherein the sugar-coating layer forming step is a step of forming a sugar-coating layer by repeating the sugar solution charging step, the sugar powder charging step, and the drying step. .   The method for producing sugar-coated granules according to claim 1 or 2, wherein the powder is citric acid. The sugar-coated granule manufactured by the manufacturing method of the sugar-coated granule as described in any one of Claims 1 thru | or 3.

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