JPH07102090B2 - Water-soluble film coating agent for food - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention uses foods such as calcium tablets, royal jelly tablets or solid foods such as granules to form a film using an organic acid salt or a hydrochloride of a polymer obtained by deacetylating chitin. By doing so, the present invention relates to a water-soluble film coating agent for foods, which has improved storage stability, water retention or taste masking.

[0002]

2. Description of the Related Art Conventionally, when a film is formed for the purpose of masking the taste and preventing water from scattering in foods in the form of tablets, foods in the form of granules, etc., a coating agent made of shellac or corn protein. Is used,
It is still used today.

[0003]

In the conventional coating agent composed of shellac and corn, since shellac and corn protein are insoluble in water, they must be made into an ethanol solution at the time of coating, resulting in high production cost. The equipment used for coating is also
Therefore, it is necessary to clean the work environment with workers.

Shellac, corn protein and the like used as a film for foods are insoluble in water, so that the film is difficult to dissolve in the stomach, which is also a cause of impeding digestion of foods.
Therefore, in some cases, a syrup may be used to form a sugar film, but the process is complicated and long, which is not economical.

Therefore, the present invention eliminates the drawbacks of the conventional water-insoluble film coating agents for foods, and forms a food coating agent which is not complicated in the coating process, from materials which can be used for foods, as a coating. As a result of diligent research on possible aqueous substances, it was found that an organic acid salt or hydrochloride of a polymeric substance having a deacetylation degree of 70% or more obtained by deacetylating chitin is effective,
The present invention has been achieved.

[0006]

The present invention is a water-soluble film coating agent for foods, which comprises an organic acid salt or a hydrochloride of a polymeric substance obtained by deacetylating chitin. It is a water-soluble film coating agent for foods having an acetyl degree of 70% or more, and is an insoluble film coating agent for foods in which acetic acid, citric acid, malic acid, lactic acid or tartaric acid is used as an organic acid. Further, it is a water-soluble film coating agent for foods, which is prepared by adding additives such as edible excipients and coloring agents.

Chitin is a kind of polysaccharide consisting of an amino sugar, and is composed of a linear molecule in which acetylated D-glucosamine of the amino group is bound by β-1,4. It is similar to cellulose in chemical structure and properties, and is biologically a major structural polysaccharide in invertebrates and lower plants.

A high molecular substance obtained by deacetylating chitin is called chitosan, which has a free amino group and is insoluble in water, but forms a salt in the presence of acids such as hydrochloric acid, acetic acid and citric acid. Melts into a viscous cationic polymer colloidal solution. The chitosan solution forms a strong film upon drying. The present invention was completed by focusing on the properties of chitosan, which is a polymer substance obtained by deacetylating this chitin.

The degree of deacetylation used in the present invention is 70%.
It is necessary that the content be not less than 75%, preferably not less than 75%. If the degree of deacetylation is less than 70%, the solubility of the salt becomes poor, and the effect expected by the present invention cannot be sufficiently obtained. For the preparation of the coating agent of the present invention, it is necessary to add at least an equal amount or an excessive amount of the organic acid salt or the hydrochloride salt required to form a salt with the deacetylated product of chitin.

[0010]

The water-soluble film coating agent for foods constructed as described above utilizes the above-mentioned properties of the organic acid salt or the hydrochloride salt of the polymer substance obtained by deacetylation, and thus makes it possible for the human body to utilize biomass at all. It was possible to obtain a harmless coating agent.

[0011]

Example 1 Experimental Material and Experimental Method A food having a triangular tablet form of 600 mg per tablet containing 100 mg of calcium was used and coated in the following manner.

Specimen triangular calcium tablet 5000 g coating liquid composition deacetylated chitin 25 g (deacetylation degree 75%) citric acid 75 g purified water 500 g

After deacetylated chitin was added to purified water and suspended, citric acid was added and stirred to dissolve to obtain a coating liquid. Freund Industrial Co., Ltd.
Using Aqua Coater type 5 made by Japan, coating is performed at intake temperature of 90 ° C and exhaust temperature of 47 to 53 ° C, and 1 tablet 610
mg film coated calcium tablets were obtained.

[0014]

Example 2 Experimental Material and Experimental Method A food containing 10 mg of royal jelly in the form of triangular tablets of 300 mg per tablet was used and coated in the following manner.

Specimen triangular royal jelly tablet 5000 g coating liquid composition deacetylated chitin 25 g (deacetylation degree 97%) malic acid 75 g purified water 500 g

After deacetylated chitin was added to purified water and suspended, malic acid was added and stirred to be dissolved to obtain a coating liquid. Freund Industrial Co., Ltd.
Made of Aqua Coater type 5 and coated at intake temperature of 90 ° C and exhaust temperature of 47 to 53 ° C, 1 tablet 305
mg of film-coated royal jelly tablets was obtained.

[0017]

Example 3 Experimental Material and Experimental Method Foods in the form of triangular tablets of 250 mg each containing 50 mg of litchi extract powder were used and coated in the following manner.

Specimen Triangular litchi tablet 5000 g Coating liquid composition Deacetylated chitin 25 g (Deacetylation degree 75%) Citric acid 50 g Stevia 1 g Orange fragrance Trace amount Colorant Trace amount Purified water 500 g

After deacetylated chitin was added to purified water and suspended, four components from citric acid to a coloring agent were added, stirred and dissolved to obtain a coating liquid. An aqua coater manufactured by Freund Sangyo Co., Ltd. was used as a coating machine, and coating was performed at an intake temperature of 90 ° C. and an exhaust temperature of 47 to 53 ° C. to obtain 253 mg of film-coated litchi tablets.

[0020]

EFFECTS OF THE INVENTION Since the present invention is constituted as described above, it does not have the drawbacks of the conventional water-insoluble film coating agents for foods, that is, it enhances the storability of foods, prevents water from scattering, and It was possible to provide a food-soluble water-soluble film coating agent capable of masking the flavor of food, and it is no longer necessary to wash the equipment used for coating with ethanol or the like,
The work environment for workers was not deteriorated, and the manufacturing cost could be kept low as a whole.

Claims (3)

[Claims] 1. A water-soluble film coating agent for foods, which comprises an organic acid salt or a hydrochloride of a polymer obtained by deacetylating chitin. 2. The water-soluble film coating agent for foods according to claim 1, which comprises a polymer substance having a degree of deacetylation of chitin of 70% or more. 3. The water-soluble film coating agent for food according to claim 1 or 2, wherein acetic acid, citric acid, malic acid, lactic acid or tartaric acid is used as the organic acid salt.