JP2650090B2 - Processed salt and its production method - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a strong and component having a core as a nucleus having a specific component inside and / or on a surface, and coating the periphery of the nucleus with a crystal salt. And a method for producing the same.

BACKGROUND OF THE INVENTION Conventionally, various processed salts have been proposed to improve the disadvantages of salts such as moisture absorption. For example, Japanese Patent Publication No. 55-1662
No. 5 discloses a moisture-proof salt (see FIG. 3) obtained by fixing an organic acid sodium or potassium salt while heating the salt crystal surface while heating.
JP-A-54-25105 discloses a complex salt in which the surface of crystal of salt is coated with a small amount of licorice extract to reduce the ora taste of the salt, increase the umami taste, and at the same time reduce the apparent specific gravity and hygroscopicity. A seasoning (see FIG. 4) is disclosed, and Japanese Unexamined Patent Publication (Kokai) No. 59-17963 makes a table colorful.
Disclosed is a color-modified salt (see FIG. 4) which promotes appetite and uniformly colors a homogeneous composition containing sodium chloride and potassium chloride as main components so that the amount used can be well understood. I have. However, all of these components are susceptible to decomposition such as air oxidation because the components are present on the surface of the salt, and are not suitable for use with unstable components. Also, JP-A-55-1537
No. 09 publication, in order to stably mix in the dentifrice an active ingredient which is unstable to water and an ionic active ingredient which easily reacts with other ions, if necessary, the active ingredient as a core substance, There is disclosed a salt coating particle (see FIG. 5) coated with a water-soluble polymer or the like and the periphery thereof is coated and granulated with fine powdered salt crystals, but the mechanical strength and airtightness of the salt coating layer are poor. Therefore, the encapsulating component is not sufficiently protected, and there is a problem in applying to foods due to the taste peculiar to the water-soluble polymer.

In view of such circumstances, the inventor of the present invention has intensively studied to obtain a processed salt having excellent mechanical strength and airtightness and capable of stably enclosing the components. As a result, they have found that a desired processed salt can be obtained by coating a nucleus having a component inside and / or on the surface thereof as a nucleus and coating the periphery thereof with a crystal salt, thereby completing the present invention.

DISCLOSURE OF THE INVENTION The present invention provides a medically acceptable active ingredient (a medicinal ingredient),
A core crystal having one or two or more components selected from the group consisting of a coloring component, a seasoning component, and a flavor component on its inside and / or surface, and the periphery of the core is coated with a crystal salt. The present invention provides a processed salt characterized by the following.

The present invention also relates to a method for incorporating a crystal salt or a solution thereof and one or more components selected from the group consisting of a medically acceptable active ingredient, a coloring ingredient, a seasoning ingredient, and a flavoring ingredient or a solution thereof, And / or a first step of producing a nuclear crystal having on the surface and using the nuclear crystal as a nucleus,
A method for producing a processed salt, comprising a second step of coating the surface of the nucleus with a crystalline salt.

The processed salt of the present invention can encapsulate components without using a water-soluble polymer substance such as dextrin having a unique taste, and has a strong crystalline salt film and is air-tight. The encapsulated component is not separated from the crystal salt due to vibrations or the like during the drying process, packaging, packing, transportation, and other distribution stages and during use, and the encapsulated component is not decomposed by air oxidation or the like.

The salt used in the processed salt of the present invention is not particularly limited, and it may be any salt that is generally used in foods as a seasoning or is added to cosmetics, such as sodium chloride, potassium chloride, and chloride. Magnesium, ammonium chloride, sodium sulfate, magnesium sulfate, sodium nitrate, potassium nitrate, alum, inorganic salts such as sodium hydrogen phosphate, sodium pyrophosphate, potassium sulfide, sodium carbonate, sodium hydrogen carbonate, and other inorganic salts, sodium citrate, barium acetate, sodium acetate And organic salts such as potassium acetate.

The components to be encapsulated in the processed salt of the present invention may be appropriately selected according to the purpose of use of the processed salt, and are not particularly limited.For example, azulene, allantoin, sodium copper chlorophyllin, magnesium silicate, vitamin , Chlorhexidines, triclosan, zinc citrate, fluoride, sanguinarine, and other medically acceptable active ingredients, ultramarine, titanium oxide, β-carotene, tar pigments, coloring components such as shikonin, glutamic acid and its salts, asparagine Acid or a salt thereof, inosinic acid or a salt thereof, a flavoring component such as stevioside, glycyrrhizin, a flavoring component such as l-menthol, carvone, anethole, limonene, peppermint oil or the like alone or 2
More than one species can be used in combination.

The method for producing a processed salt of the present invention comprises a first step and a second step. The first step is not particularly limited. For example, the first step is for producing a nucleus crystal having the above-mentioned components inside and / or on the surface. Alternatively, after adjusting the supersaturated aqueous solution, while stirring the aqueous solution with a rotating blade rotating at 50 to 400 rpm, a predetermined amount of the above-mentioned components that have been pulverized or made into an aqueous solution is added, and then the mixed solution is subjected to several times. This is carried out by stirring with heating for a period of time (usually 2 to 4 hours) to evaporate water or by cooling.

Alternatively, for example, adding a small amount of water to the crystal salt, or heating a substantially saturated solution of the crystal salt, evaporating water to prepare a viscous crystal salt, or
While gently stirring with a rotating blade rotating at 0.8 to 2 rpm as it is without adding water to the crystalline salt, a predetermined amount of the above-mentioned component obtained by pulverizing or converting the solution into an aqueous solution is added thereto, and then for several hours (usually 2 hours). It can also be carried out by a known method such as stirring while heating to evaporate water to obtain a nuclear crystal having the component on the surface.

The component added in the first step is usually used as a fine powder of 100 to 270 mesh or an aqueous solution having a concentration of 1 to 40% by weight. The amount added is 1 to 100% by weight of the crystal salt used.

In the first step, when heating to evaporate water or crystallizing a nucleus crystal by cooling, the heating and cooling temperatures vary depending on the pressure and cannot be specified unconditionally. 60 ° C or higher for heating
Preferably, the temperature is 80 ° C. or higher, and when cooling, a temperature difference of 5 ° C. or higher with respect to the temperature of the supplied liquid is preferable.

The core crystal thus obtained is dehydrated by a centrifugal dehydrator or a decompression and pressure dehydrator or the like, and is subjected to a normal drying step such as hot air or a decompression dryer under fluidized conditions as necessary, if necessary. The particle size is adjusted in a screening step. The particle size is not particularly limited, but is usually 100 to 700 μm.
m, preferably 200 to 500 μm.

The second step has a core crystal as a nucleus, and aims to obtain a processed salt of the present invention by coating the periphery of the nucleus with a crystal salt of the same kind or different kind. Heat or cool to prepare a supersaturated aqueous solution. Next, the nuclear crystal obtained in the first step was added to the supersaturated solution,
Usually, 5 to 20% by weight is added to crystallize a processed salt in which the periphery of the core crystal is uniformly coated with a crystal salt. That is,
The crystalline salt is coated by crystallization. Coating is performed until the thickness of the film formed on the core crystal becomes 10 μm or more, usually 10 to 400 μm. 10μ thick coating
If it is less than m, a processed salt sufficient to achieve the object of the present invention cannot be obtained. The obtained processed salt is separated by a normal separation operation such as a centrifugal dehydrator and is subjected to a drying step. Drying is performed by feeding the obtained processed salt into a continuous fluidized-bed dryer with a quantitative feeder, and sufficiently drying it with hot air supplied through a blower and a heater equipped with an air filter. As the drying method, such a fluidized bed drying method is most suitable, but a drying method of a hot air heat receiving type or a conduction heat transfer type may be used. In the second step, crystallization is preferably performed by heating to 60 ° C. or more under atmospheric pressure when using a normal vessel with a heating mechanism. You can also do it. If necessary, the dried processed salt is subjected to a screening step to adjust the particle size. The particle size is not particularly limited, but usually 110 to 110
0 μm, preferably 300 to 800 μm.

Next, the structure of the processed salt of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto. The structure of the processed salt obtained by the conventional method is also illustrated.

In the accompanying drawings, FIG. 1 is a schematic sectional view of a specific example of the processed salt of the present invention. This specific example has a structure composed of salt crystals 1 and a seasoning component 2 regularly arranged therein. FIG. 2 is a schematic sectional view of another embodiment of the processed salt of the present invention. This specific example has a structure comprising salt crystals 1 and seasoning components 2 scattered irregularly therein. FIG. 3 is a schematic sectional view of a conventional processing salt. This processed salt has a structure composed of salt crystals 1 and a seasoning component 2 fixed on places on the surface thereof. FIG. 4 is a schematic sectional view of another type of conventional processing salt. This processed salt has a structure composed of a uniform crystal 3 composed of salt crystals and potassium chloride and a coloring component 4 attached to the periphery thereof. Fifth
The figure is also a schematic sectional view of another conventional processing salt. This processed salt has a structure composed of potassium chloride crystals, a water-soluble polymer film formed on the surface thereof, and a fine powder layer of salt crystals fixed further around the crystals.

The obtained processed salt is excellent in strength and airtightness, and the encapsulated components are not separated by physical force such as vibration or decomposed by air oxidation or the like, so seasoning salts, preservatives, fluxes, It is suitable for use as a fragrance, etc., and for blending in toothpastes, mouthwashes, oily creams, bath preparations, shampoos and foods.

Examples Next, the present invention will be described in more detail with reference to examples.

Example 1 Supersaturated saline solution 6 was placed in a container with a heating mechanism having a capacity of 10 and powdered sodium guaiazulene-3-sulfonate was stirred with a 4-blade stirrer at a rotation speed of 200 rpm.
100 g were added. Then, after stirring for 2 hours while heating to 60 ° C. or higher, the crystallized nuclei are separated, dehydrated, transferred to a ball container having a capacity of 3, and blown with hot air at 60 ° C. using a 2-blade stirrer. Stirring was performed at 2 rpm for 10 minutes to evaporate water. Further subjected to a screening step, 500 g of the obtained core crystals having a particle size of 300 to 400 μm are added to a container with a heating mechanism having a capacity of 10 containing a substantially saturated saline solution 6 and heated at a temperature of 80 ° C. or more at a rotation speed of 300 rpm. Crystallization was performed by stirring for 3 hours. After separating and dehydrating the crystallized processing salt, it is immediately supplied to a fluidized bed drier and heated with hot air at 100 ° C for 20 minutes.
After drying for a minute, a high quality blue processed salt having a water content of 0.3%, an average particle diameter of 600 μm, and an average coating thickness of 100 μm was obtained. The processed salt is
The encapsulating component, sodium guaiazulene-3-sulfonate, is not scattered by hot air drying with a fluidized bed drier, and is not separated by post-manufacturing processes such as packaging and transportation, and has sufficient strength. Was.

Example 2 A supersaturated saline solution 20 was placed in a container with a heating mechanism having a capacity of 30, and a 10% by weight aqueous sodium glutamate solution 2 was added while stirring at a rotation speed of 100 rpm with a 4-blade stirrer. Then, after stirring for 2 hours while heating to 80 ° C. or higher, the crystallized nuclei are separated, dehydrated, transferred to a ball container having a capacity of 5, and blown with hot air at 80 ° C. using a two-bladed stirrer. Stirring was performed at 2 rpm for 20 minutes to evaporate water. Further, in a screening step, 400 g of the obtained core crystals having a particle size of 300 to 400 μm was substantially saturated with saline 6.
Was added to a container having a heating mechanism having a capacity of 10 and stirred at a rotation speed of 300 rpm for 4 hours while heating to 80 ° C. or higher to carry out crystallization. The crystallized processed salt is separated, dehydrated, and immediately supplied to a fluidized bed drier, dried with hot air at 100 ° C. for 20 minutes, and has a water content of 0.3%, an average particle diameter of 700 μm, and an average coating thickness of 175 μm.
m of the processed salt for seasoning was obtained. The processed salt has sufficient strength without the sodium glutamate as an encapsulating component being scattered by hot air drying by a fluidized bed drier and not separated by post-manufacturing treatment such as packaging and transportation. Was.

Example 3 Supersaturated saline solution 7 and 50 g of ultramarine blue were placed in a container having a capacity of 15 with a pressure reducing mechanism, and the mixture was evacuated while stirring at a rotation speed of 50 rpm with a stirrer having two blades. Then, after stirring for 1 hour while maintaining at 40 ° C., the crystallized nucleus was separated, dehydrated, transferred to a ball container having a capacity of 8, and blown with hot air at 80 ° C. using a 4-blade stirrer. The mixture was stirred at 2 rpm to evaporate water. Further, it was subjected to a screening step, and 200 g of the obtained core crystal having a particle size of 300 to 400 μm was added to a container having a heating mechanism having a capacity of 5 and containing an aqueous solution of supersaturated sodium nitrate 3, and heated to 60 ° C. or higher while rotating at 100 rpm.
For 2 hours to effect crystallization. After separating and dehydrating the crystallized processing salt, it is immediately supplied to a fluidized-bed dryer, and is heated to 80 ° C.
Dry with hot air for 20 minutes, moisture content 0.2%, average particle size 450μ
m, a high quality processed salt for storage having an average coating thickness of 50 μm was obtained.

The following tests were performed using the processed salt of the present invention obtained in the examples.

1) Strength test of processed salt 50 g of processed salt obtained from Example 1 and having a particle size of 500 to 700 µm
And 50 g of a processing salt having a particle size of 500 to 700 μm as shown in FIG. 3 attached to the surface of sodium guaiazulene-3-sulfonate produced by a conventional method and solidified,
The mixture was placed in a 00 ml cylindrical container and shaken at a shaking frequency of 100 times / min at an amplitude of 10 cm for 1 minute. Then, the powder having a particle size of 125 μm or less was collected by sieving, dissolved in 5 ml of water, and the absorbance at 568 nm was measured. The results are shown in Table 1.

As is clear from the table, the processed salt obtained by the conventional method was separated from sodium guaiazulene-3-sulfonate by shaking, but was not separated from the processed salt of the present invention at all.

2) Stability test of sodium guaiazulene-3-sulfonate 10 g of the same processed salt as described above was sealed in a 10 × 10 cm nylon bag, allowed to stand at room temperature for 6 months, and 2 g of the processed salt was precisely weighed. Then, it was dissolved in 50 ml of water, the absorbance at 293 nm was measured, and the stability of sodium guaiazulene-3-sulfonate, a component of the processed salt, was tested by comparing with the absorbance of the processed salt before standing. The results are shown in Table 2.

The decomposition rate of the components in the table is calculated by the following formula: Calculated from

As is clear from the table, the processed salt obtained by the conventional method was decomposed 83% by sodium guaiazulene-3-sulfonate after standing for 6 months, whereas the processed salt of the present invention was almost decomposed by sodium guaiazulene-3-sulfonate. Did not receive.

From the above results, it is understood that the processed salt of the present invention is superior in strength and airtightness as compared with the conventional processed salt.

[Brief description of the drawings]

1 and 2 are schematic sectional views of a specific example of the processed salt of the present invention, and FIGS. 3 to 5 are schematic sectional views of a conventional processed salt. Reference numerals in the drawings mean the following. 1 ... salt crystals, 2 ... seasoning components, 3 ... salt crystals and / or potassium chloride crystals, 4 ... coloring components, 5 ...
Water-soluble polymer, 6: potassium chloride crystal.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshihiro Yamaguchi 609-16 Fukumoto, Oku-cho, Oku-gun, Okayama Prefecture (72) Inventor Koichi Nishioka 3004-4, Shiriumi, Oku-cho, Oku-gun, Okayama Prefecture (56) References JP-A Sho53 136566 (JP, A) JP 39-16325 (JP, B1) JP 37-18576 (JP, B1) JP 40-3465 (JP, B1)

Claims (2)

(57) [Claims] Claims: 1. A nucleus having at least one or more components selected from the group consisting of a medicinal component, a coloring component, a seasoning component, and a fragrance component on the inside and / or on the surface thereof, and the periphery of the nucleus. A processed salt characterized by being coated with a crystal salt by crystallization. 2. The method according to claim 1, wherein said crystal salt or a solution thereof and one or more components selected from the group consisting of a medicinal component, a coloring component, a seasoning component and a fragrance component, or a solution thereof are used to prepare the components inside and / or on the surface. A method for producing a processed salt, comprising: a first step of producing a core crystal provided above; and a second step of using the core crystal as a nucleus and coating the periphery of the nucleus with a crystal salt by crystallization.