JP2001029052A - Dolomite particle-dispersed drink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a dolomite particle-dispersed drink whose coagulation is controlled and which scarcely generates precipitates, has excellent suspension dispersibility and an excellent balance between calcium and magnesium and is useful for health and so on, by dispersing the dolomite particles having a prescribed median diameter in a drink. SOLUTION: This method for producing a dolomite-dispersed drink comprises dispersing dolomite particles having median diameters of <1 μm, preferably 0.05 to 0.8 μm, in a drink such as milk, a vegetable juice or a fruit juice. The dolomite particles are obtained by subjecting dolomite to a wet grinding treatment in a liquid. The dolomite is a compound having a composition of calcium carbonate.magnesium carbonate. The dolomite particle dispersion obtained by the wet grinding treatment of the dolomite is preferably compounded with a coagulation-preventing agent such as an emulsifier and a dispersing agent such as a polysaccharide, and the content of the dolomite particles is preferably 5 to 30 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a calcium-magnesium fortified beverage containing dolomite fine particles in a dispersed state, a method for producing the same, and a dolomite fine particle dispersion and a method for producing the same.

[0002]

2. Description of the Related Art Calcium and magnesium are essential minerals for the human body. In recent years, interest in calcium intake has increased due to an increase in osteoporosis and the like. On the other hand, magnesium has not received much attention in spite of the fact that deficiency causes heart disease, arrhythmia and the like. However, it has recently been found that a lack of magnesium relative to calcium intake induces various diseases such as ischemic heart disease, so that a balanced intake of calcium and magnesium is regarded as important. At present, the recommended weight intake ratio of calcium to magnesium is 2: 1. According to the 5th revision of the nutritional requirements of Japanese,
Adult daily target intake is 600m calcium
g and 300 mg of magnesium.

[0003] As a method for producing a calcium dispersion used for beverages, a calcium carbonate slurry obtained by wet-pulverizing a dispersion of calcium carbonate powder having specific physical properties and water under specific conditions is mixed with a specific emulsifier. Or a method in which a dispersion of a calcium carbonate powder having specific physical properties, a specific emulsifier, and water is wet-pulverized under specific conditions (Japanese Patent Application Laid-Open No. 5-319817). 5 to 20% by weight of calcium carbonate particles having a particle diameter in a range of 0.01 to 0.5 μm and an average particle diameter of secondary particles as an aggregate thereof in a range of 0.1 to 50 μm; A method of producing a calcium carbonate emulsion for food which is prepared by dispersing a weight% emulsifier in water and can be stored for one week or more (Japanese Patent Application Laid-Open No. 10-248527). A method of adding a mixture of lucium and a sucrose fatty acid ester (JP-A-7-284383) and the like are known. As a method for producing a magnesium dispersion, a production method including a step of wet-milling a magnesium carbonate dispersion in which a dispersant is dissolved (Japanese Patent Laid-Open No.
No. 1-21123) is known. However, in any method, it is essential to add a compound such as a dispersant, an emulsifier or a stabilizer in order to stably disperse the calcium or magnesium salt in the beverage so as not to precipitate. This is thought to be because, when salts such as calcium carbonate and magnesium carbonate are refined to improve dispersibility, fine particles tend to agglomerate, and once agglomerated particles are difficult to re-disperse easily. Have been. Accordingly, there is a need for a beverage fortified with calcium and magnesium that contains calcium and magnesium in the form of salts that are hardly soluble in water without the presence of a special compound, in a stable dispersed state.

[0004] Further, minerals containing dolomite as a main component, which are naturally produced, have an average particle diameter of 3.0 μm or less and a maximum particle diameter of 25 μm.
μm or less, or a heat treatment of such a finely pulverized product in the presence of oxygen-containing gas at a temperature in the range of 100 to 450 ° C., with few impurities, improved whiteness, and safety problems. There is also known a composition for food materials containing calcium and magnesium as main components (Japanese Patent Application Laid-Open No. 11-113532). However, in the food material composition, the minimum average particle diameter of the dolomite-based mineral specifically shown is 1.24.
When the average particle size is 1 μm or more, the suspension is kept stable in a beverage or liquid, and a uniform dispersion cannot be obtained.

[0005]

DISCLOSURE OF THE INVENTION The object of the present invention is to provide a dolomite fine particle containing calcium and magnesium, which have a good dispersibility even when added to a beverage, and which can keep dolomite fine particles containing calcium and magnesium in a dispersed state. To provide a calcium-magnesium-enriched beverage containing water in a dispersed state.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have studied the production of a dispersion for beverages having an excellent balance between calcium and magnesium. In dispersing the fine particles obtained by individually pulverizing the contained compounds, for example, calcium carbonate and magnesium carbonate, in water or beverages, it is necessary to stably disperse them without using an anti-agglomeration agent or stabilizer such as a dispersant and an emulsifier. Proved difficult. Therefore, as a result of intensive studies, calcium carbonate
When dolomite, which is a compound containing the composition of magnesium carbonate, is pulverized and finely divided, it has been surprisingly found that the fine particles can be stably dispersed in water or beverage without using an anti-agglomeration agent or a dispersant, and , Very fine particles such as calcium carbonate often aggregate,
Once flocculation has occurred, it is difficult to redisperse using an anti-coagulant or dispersant, but surprisingly, very fine aggregates of dolomite fine particles can be easily re-dispersed with an anti-coagulant or dispersant. As a result, the present invention has been completed.

That is, the present invention provides a method for producing a dolomite fine particle-dispersed beverage in which dolomite fine particles having a median diameter of less than 1 μm are dispersed in a beverage, and a dolomite fine particle having a median diameter of less than 1 μm having a median diameter of 0.05 to 0.1 μm.
The method for producing the above dolomite fine particle-dispersed beverage using 8 μm dolomite fine particles,
A method for producing the above-mentioned dolomite fine particle-dispersed beverage having a median diameter of 0.8 μm and particles of 0.1 to 3.9 μm having a volume of 90% or more of the total particles, and a method of producing dolomite fine particles having a volume of 0.05 to 0.3 μm. Has a median diameter of 0.01 to
The above-mentioned method for producing a dolomite fine particle-dispersed beverage in which 1.0 μm particles have a volume of 90% or more of the whole particles, and the dolomite fine particle dispersion obtained by wet-milling dolomite as dolomite fine particles having a median diameter of less than 1 μm. Dolomite fine particle dispersion beverage manufacturing method, and dolomite fine particle dispersion liquid manufacturing method of the dolomite fine particle dispersion drink containing an anti-agglomeration agent, dolomite fine particle dispersion liquid containing the dispersant, the dolomite fine particle dispersion beverage manufacturing method, The method for producing the dolomite fine particle-dispersed beverage in which the dolomite fine particle-dispersed beverage contains an anti-agglomerating agent, the method for producing the dolomite fine particle-dispersed beverage in which the dolomite fine particle-dispersed beverage contains a dispersing agent, and the dolomite in which the anti-agglomerating agent is an emulsifier Production methods for fine particle-dispersed beverages, The present invention relates to a method for producing the above-mentioned dolomite fine particle-dispersed beverage which is a saccharide, and a method for producing the above-mentioned dolomite fine particle-dispersed beverage wherein the dolomite fine particle-containing beverage is a neutral beverage.

The present invention also relates to a dolomite fine particle-dispersed beverage containing dolomite fine particles having a median diameter of less than 1 μm, and to a dolomite fine particle having a median diameter of less than 1 μm.
The dolomite fine particle-dispersed beverage, which is a dolomite fine particle having a median diameter of 5 to 0.8 μm, and the dolomite fine particles have a median diameter of 0.3 to 0.8 μm and 0.1 to
The dolomite fine particle-dispersed beverage in which the 3.9 μm particles have a volume of 90% or more of the whole particles, or the dolomite fine particles have a median diameter of 0.05 to 0.3 μm and 0.01 to
The above-mentioned dolomite fine particle-dispersed beverage in which 1.0 μm particles have a volume of 90% or more of the whole particles, or a median diameter of 1 μm
The dolomite microparticles in which the dolomite microparticles are less than the dolomite microparticles obtained by wet-milling the dolomite, the dolomite microparticles are obtained by wet-milling the dolomite microparticles, and the dolomite microparticles are obtained by wet-milling the dolomite. The present invention relates to the above-mentioned dolomite fine particle-dispersed beverage containing a dispersant such as a polysaccharide, and the above-mentioned fine particle-dispersed beverage in which the dolomite fine particle-dispersed beverage is a neutral beverage.

The present invention also provides a dolomite fine particle dispersion in which dolomite fine particles having a median diameter of less than 1 μm are dispersed in a liquid, and a dolomite fine particle having a median diameter of less than 1 μm having a median diameter of 0.05 to 0.8 μm. The above-mentioned dolomite fine particle dispersion liquid which is a fine particle, or the above-mentioned dolomite fine particle dispersion wherein the dolomite fine particles have a median diameter of 0.3 to 0.8 µm and the particles of 0.1 to 3.9 µm have a volume of 90% or more of the whole particles. The liquid or dolomite fine particles have a median diameter of 0.05 to 0.3 μm.
The dolomite fine particle dispersion in which the particles of 01 to 1.0 μm have a volume of 90% or more of the whole particles, or the dolomite fine particle dispersion in which the dolomite fine particles are dolomite fine particles obtained by wet-milling dolomite;
The present invention relates to the dolomite fine particle dispersion in which the dolomite fine particle dispersion contains an anti-agglomeration agent such as an emulsifier, and the dolomite fine particle dispersion in which the dolomite fine particle dispersion contains a dispersant such as a polysaccharide.

The present invention also provides a method for producing a dolomite fine particle dispersion in which dolomite is wet-pulverized in a liquid to obtain dolomite fine particles having a median diameter of less than 1 μm.
dolomite particles having a median diameter of 0.05 to 0.8 μm, wherein the dolomite particles have a median diameter of 0.05 to 0.8 μm.
0.1 to 3.9 μm with a median diameter of 3 to 0.8 μm
The method for producing the above-mentioned dolomite fine particle dispersion in which the particles have a volume of 90% or more of the total particles, and the method in which the dolomite fine particles have a median diameter of 0.05 to 0.3 μm and a particle size of 0.01 to
A method for producing the dolomite fine particle dispersion in which 1.0 μm particles have a volume of 90% or more of the total particles, a method for producing the dolomite fine particle dispersion in which an anti-aggregating agent such as an emulsifier is added before and after wet pulverization, The present invention relates to a method for producing a dolomite fine particle dispersion in which a dispersant such as a polysaccharide is added before and after wet pulverization.

Further, the present invention relates to dolomite fine particles having a median diameter of less than 1 μm,
The above-mentioned dolomite fine particles having a median diameter of 5 to 0.8 µm, and the dolomite fine particles having a median diameter of 0.3 to 0.8 µm and 0.1 to 3.9 µm as 9
The dolomite fine particles having a volume of 0% or more, and the dolomite fine particles having a median diameter of 0.05 to 0.3 μm and particles of 0.01 to 1.0 μm having a volume of 90% or more of the whole particles. Dolomite microparticles.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Dolomite used in the present invention is an ore mainly composed of calcium carbonate and magnesium carbonate [CaMg (CO ₃ ) ₂ ] collected from limestone sedimentary rock. Dolomite finely divided is commercially available in powder form from, for example, Kyowa Hakko Kogyo Co., Ltd., Meiji Seika Co., Ltd., and Sankyo Foods Co., Ltd.In the present invention, these commercially available dolomite powders can be used as raw materials. .

In the present invention, the dolomite fine particles mean those having a median diameter of less than 1 μm, even if the median diameter is not less than 1 μm.
Dolomite particles smaller than μm are referred to as fine particle dolomite in the present invention. On the other hand, the term dolomite simply means dolomite ore itself or dolomite that has been refined, but has a median diameter of 1 μm or more. Here, the median diameter refers to the particle diameter (cumulative average diameter) at a point where the curve becomes 50% when the total volume of one group of particle bodies is set to 100%, and the particle size distribution is evaluated. This is a parameter that is generally used as one of the parameters to be executed. Then, the median diameter of the dolomite particles is determined by a particle size distribution measuring device.
As a specific measuring device, a laser diffraction / scattering type particle size distribution measuring device (“LA-700” manufactured by Horiba, Ltd.) can be mentioned.

The method for producing a dolomite fine particle-dispersed beverage of the present invention is characterized in that dolomite fine particles having a median diameter of less than 1 μm are dispersed and suspended in a beverage. Examples of the dolomite fine particles include a dolomite fine particle dispersion obtained by wet-milling dolomite and a dolomite fine particle dry powder. The type of the dolomite fine particle-dispersed beverage is not particularly limited, and examples thereof include milk, milk drinks, soy milk, vegetable and fruit juices, various teas such as Japanese tea and black tea, coffee, sports drinks, and health drinks. And other neutral beverages.

[0015] The present invention, which is obtained by pulverizing dolomite used in the production of beverages containing fine dolomite particles and dispersed and suspended in liquids such as aqueous media and beverages, and in which the dispersed state is stably maintained. Any dolomite can be used as a raw material to produce the dolomite fine particles in the above, but it is preferable to use ore that has been washed with water, pulverized and heat-treated. Such pulverization preferably has a median diameter of 1 to 1000 μm, more preferably 1 to 50 μm.
0 μm, particularly preferably 1 to 100 μm, and the heating is carried out so that the dolomite particles are 100 to 400 μm.
C., preferably 150-250.degree. C.

The dolomite pulverization can be carried out by a dry pulverization method and / or a wet pulverization method. However, in order to obtain dolomite fine particles from which a dispersion liquid having a small dispersion in particle diameter and a good dispersibility can be obtained, For industrial implementation using current grinding techniques, wet grinding is preferred over dry grinding. Examples of a pulverizer used for the dry pulverization include a jet mill, a vibration mill, a ball mill, and the like. The fine particle dolomite obtained by the dry pulverization may be further subjected to a heat treatment. Examples of the pulverizer used for wet pulverization include, for example, a bead mill, a sand mill, a dyno mill, a coball mill, and the like.The media such as glass beads, alumina beads, zirconia beads, and titania beads are rotated by a wet disc in a pulverizing chamber. Alternatively, the rotor to be rotated can be crushed to grind the slurry to be crushed supplied to the crushing chamber.

The method of wet pulverization by a wet pulverizer is not particularly limited. For example, dolomite coarsely pulverized by dry pulverization or the like may be used as a liquid to obtain 1 to 5 coarsely pulverized dolomite.
A preferable method is a method of wet pulverization using a substance added so as to be 0% by weight, preferably 5 to 30% by weight. The median diameter of the coarsely pulverized dolomite used in this wet pulverization method is not particularly limited, but is preferably 1 to 500 μm, more preferably 1 to 100 μm. Generally, the bead diameter of the beads used in the wet pulverization method is preferably 0.1 to 5 mmφ, and the conditions of the pulverization temperature are not particularly limited, but are preferably 50 ° C or lower, particularly preferably 30 ° C or lower.

Examples of the liquid used for the wet pulverization include water, deionized water, pure water, a buffer, a beverage, and the like. Specific examples of the buffer include a phosphate buffer, an acetate buffer, a lactate buffer, and a citrate buffer. The drink is not particularly limited, for example, milk, milk drink, soy milk, vegetable and fruit juices, various teas such as Japanese tea and black tea,
Coffee, sports drinks, can be specifically mentioned neutral drinks such as health drinks, using such a drink as a liquid, a method for producing a dolomite fine particle dispersion by wet pulverization and a method for producing a dolomite fine particle dispersion beverage. You can also.

The dolomite particles obtained by dry pulverization and wet pulverization must have a median diameter of less than 1 μm, that is, dolomite fine particles, and if the median diameter is 1 μm or more, excellent dispersion stability and uniform dispersion. I can not get the nature. Among such dolomite particles,
The median diameter is preferably 0.8 μm or less, and 0.3 to 0.1 μm.
8 μm is more preferred, and 0.3 to 0.5 μm is particularly preferred. When coexisting a dispersant, an anti-agglomeration agent, an emulsifier, a stabilizer and the like described below, the median diameter is 0.0
It is preferably from 5 to 0.3 μm, particularly preferably from 0.2 to 0.3 μm. In addition, it is preferable that the fine particle dolomite used in the present invention has a small variation in particle diameter. When the particle diameter is 0.3 to 0.8 μm, the particle diameter is 0.1 to 3.9 μm.
m is preferably 90% or more of the volume of the whole particles. When the median diameter is 0.05 to 0.3 μm, the particles of 0.01 to 1.0 μm have a volume of 90% or more of the whole particles. It is preferred that

The dolomite fine particle dispersion and / or the dolomite fine particle dispersion beverage of the present invention can contain an anti-agglomeration agent, a dispersant and the like. As mentioned above, in general,
Very fine particles such as calcium carbonate often aggregate, and once aggregation occurs, it is difficult to re-disperse even using an anti-aggregation agent or a dispersant, but surprisingly, the extremely fine dolomite particles of the present invention. Can be easily redispersed with an anti-agglomeration agent or a dispersant.
Further, when an anti-agglomeration agent and a dispersant are added to the beverage, the heat resistance and the like of the beverage can be improved.

Examples of the agglomeration inhibitor include an emulsifier,
Examples of such emulsifiers include fatty acid polyhydric alcohol esters, and more specifically, sugar esters such as DK esters (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) and Examples thereof include polyglycerin fatty acid esters such as Poem (manufactured by Riken Vitamin Co., Ltd.), glycerophospholipids such as lecithin and enzyme-treated lecithin, sorbitan fatty acid esters, propylene glycol fatty acid esters, and lactic acid fatty acid esters. When an emulsifier is used as an agglomeration inhibitor, it is preferable to use one having a high HLB value, particularly preferably having an HLB of 9 or more, in order to maintain good dispersibility of dolomite and prevent aggregation.
The addition amount is not particularly limited, but can be appropriately selected from the range of 1 to 30% by weight, preferably 5 to 25% by weight based on dolomite.

Examples of the dispersant include polysaccharides. More specifically, thickening polysaccharides such as xanthan gum, gellan gum, karaya gum, guar gum, and tragacanth gum, and Avicel and Theorus manufactured by Asahi Kasei Kogyo Co., Ltd. And sodium propylene glycol alginate.

In addition, for example, when the dolomite fine particle dispersion is added to a beverage or the like, the dolomite fine particle dispersion may be subjected to a homogenization treatment in order to maintain a good dispersion state.
In the homogenization treatment, the dolomite fine particle dispersion may be homogenized, or the beverage to which the dolomite fine particles are added may be homogenized. Such a homogenization treatment is performed by a colloid mill, TK
It can be performed using a device such as a homomixer, a high-pressure homogenizer, or an ultra-high-pressure homogenizer.

[0024]

The present invention will be described below in more detail with reference to Examples and the like, but the technical scope of the present invention is not limited by these Examples and the like. Example 1 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was suspended in water at a concentration of 20% by weight. Next, this suspension was wet-pulverized using a bead mill pearl mill (manufactured by Ashizawa Corporation). And the median diameter is 0.
8 μm (particles of 0.1 to 3.9 μm account for 98% of all particles
Of dolomite fine particle dispersion. 2.5 g of this dolomite fine particle dispersion was added to 100 g of commercially available processed milk (low-fat milk) to enhance the calcium content to 100 mg and the magnesium content to 60 mg, respectively. And
The milk is subjected to a high-pressure homogenizer (manufactured by Lanie) for 30 minutes.
Milk enriched with calcium and magnesium homogenized at a pressure of 0 kg / cm ² was produced.

Example 2 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was suspended in water at a concentration of 20% by weight. Next, this suspension was wet-pulverized using a bead mill pearl mill (manufactured by Ashizawa Corporation). And the median diameter is 0.
45 μm (particles of 0.1 to 3.9 μm are 99% of all particles)
% Dolomite fine particle dispersion. 2.5 g of this dolomite fine particle dispersion was added to 100 g of commercially available processed milk (low-fat milk) to enhance the calcium content to 100 mg and the magnesium content to 60 mg, respectively. And
The milk is subjected to a high-pressure homogenizer (manufactured by Lanie) for 30 minutes.
Milk enriched with calcium and magnesium homogenized at a pressure of 0 kg / cm ² was produced.

Example 3 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was suspended in water at a concentration of 20% by weight. Next, this suspension was wet-pulverized using a bead mill pearl mill (manufactured by Ashizawa Corporation). And the median diameter is 0.
25 μm (particles of 0.1 to 1.0 μm constitute 98
% Dolomite fine particle dispersion. 2.5 g of this dolomite fine particle dispersion was added to 100 g of commercially available processed milk (low-fat milk) to enhance the calcium content to 100 mg and the magnesium content to 60 mg, respectively. And
The milk is subjected to a high-pressure homogenizer (manufactured by Lanie) for 30 minutes.
Milk enriched with calcium and magnesium homogenized at a pressure of 0 kg / cm ² was produced.

Example 4 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was suspended in water at a concentration of 20% by weight. Next, wet grinding was performed using a beads mill pearl mill (manufactured by Ashizawa Corporation). Furthermore, a polyglycerin fatty acid ester [manufactured by Taiyo Chemical Co., Ltd., Sunsoft A121E]
(HLB14)] was added and dissolved at 4% by weight. And the median diameter is 0.25 μm (0.1-1.
A dolomite fine particle dispersion having a particle size of 0 μm (98% of the total particles) was obtained. 1. Dolomite fine particle dispersion
Add 5 g to 100 g of commercial processed milk (low fat milk),
Calcium content 100mg, magnesium content 60mg
Each was strengthened. Then, the milk was homogenized with a high-pressure homogenizer (manufactured by Lanney) at a pressure of 300 kg / cm ² and sterilized by an HTST sterilizer to produce milk enriched with calcium and magnesium.

Example 5 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was dispersed in water at a concentration of 20% by weight. Next, a polyglycerol fatty acid ester [Sunsoft A121E (HLB14), manufactured by Taiyo Kagaku Co., Ltd.] was added to this dispersion for 4 hours.
It was added and dissolved so as to be a weight%. Next, wet grinding was performed using a beads mill pearl mill (manufactured by Ashizawa Corporation). And the median diameter is 0.25 μm (0.1-1.
A dolomite fine particle dispersion having a particle size of 0 μm and a volume of 98% of the total particles) was obtained. 1. Dolomite fine particle dispersion
Add 5 g to 100 g of commercial processed milk (low fat milk),
Calcium content 100mg, magnesium content 60mg
Each was strengthened. Then, the milk was homogenized with a high-pressure homogenizer (manufactured by Lanney) at a pressure of 300 kg / cm ² and sterilized by an HTST sterilizer to produce milk enriched with calcium and magnesium.

Example 6 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was dispersed in water at a concentration of 20% by weight. Next, wet grinding was performed using a beads mill pearl mill (manufactured by Ashizawa Corporation). Next, a polyglycerin fatty acid ester [manufactured by Taiyo Kagaku Co., Ltd., Sunsoft A121E]
(HLB14)] was added and dissolved at 4% by weight. And the median diameter is 0.25 μm (0.1-1.
A dolomite fine particle dispersion having a particle size of 0 μm (98% of the total particles) was obtained. On the other hand, 0.5 g of crystalline cellulose (Seolas SC-N43, manufactured by Asahi Kasei Kogyo Co., Ltd.) was added to 100 g of commercially processed milk (low-fat milk), and the milk was 300 kg with a high-pressure homogenizer (manufactured by Lanie).
/ Cm ^{2 at} a pressure of homogenized. Next, 2.5 g of the dolomite fine particle dispersion was added to 100 g of the theeolas-added milk, the amount of calcium was 100 mg, and the amount of magnesium was 60 mg.
Was added so that Thereafter, milk which was sterilized by an HTST sterilizer and fortified with calcium and magnesium was produced.

Comparative Example 1 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was dispersed in water at a concentration of 20% by weight. Next, this dispersion was added to 100 g of milk with 100 mg of calcium.
Magnesium was added so that the amount became 60 mg. The milk was homogenized with a high-pressure homogenizer (manufactured by Runny) at a pressure of 300 kg / cm ² .

Comparative Example 2 Commercially available light calcium carbonate (median diameter 0.25 μm or less) was dispersed in water at a concentration of 20% by weight. This dispersion was added to 100 g of milk so that the amount of calcium became 160 mg. The milk was homogenized with a high-pressure homogenizer (manufactured by Runny) at a pressure of 300 kg / cm ² . Thereafter, the bottle was sterilized by an HTST sterilizer and filled into bottles.

Comparative Example 3 Commercially available light calcium carbonate (median diameter 0.25 μm or less) was dispersed in water at a concentration of 20% by weight. Polyglycerin fatty acid ester [Sunsoft (A121E, HLB14) manufactured by Taiyo Kagaku Co., Ltd.] was added and dissolved in this dispersion so as to be 4% by weight. This dispersion was added to 100 g of milk so that the amount of calcium became 100 mg. The milk was homogenized with a high-pressure homogenizer (manufactured by Runny) at a pressure of 300 kg / cm ² . Then H
It was sterilized by a TST sterilizer and filled into bottles.

Example 7 (Precipitation Test) The milk produced in Examples 1 to 6 and Comparative Examples 1 to 3 was stored in a bottle at 5 ° C. for 2 weeks after filling. The state of sedimentation at the bottom of the bottle during each storage period was visually evaluated. Table 1 shows the results.

[0034]

[Table 1]

As can be seen from Table 1, the generation of sediment can be suppressed by pulverizing dolomite to a median diameter of less than 1 μm, and even after one week, slight sediment was observed (Example 1). 1, Comparative Example 1). When the median diameter was 0.5 μm or less, only a few precipitates were observed even after 2 weeks (Example 2). Further, at 0.25 μm, almost no precipitation was observed even after one week, and only slightly after 2 weeks (Example 3). On the other hand, when calcium carbonate is used, 0.1.
Even at 25 μm, a noticeable precipitate was observed even after one day (Comparative Example 2).

The calcium carbonate fine particles having a median diameter of 0.25 μm are precipitated by aggregation of calcium carbonate (Comparative Example 3) even if Sunsoft A121E as an emulsifier is added immediately after wet pulverization (Comparative Example 3). 0.2
The dolomite fine particles of 5 μm hardly cause aggregation, and the aggregation preventing effect was observed even when the emulsifier Sunsoft A121E was added at any time before or after wet pulverization (Examples 4 and 5). Further, a dispersant, CEOLUS SC
It was found that by adding -N42, a beverage that did not cause precipitation for a long period of time could be obtained (Example 6).

Example 8 Dolomite FM (manufactured by Kyowa Hakko Kogyo Co., Ltd., median diameter: 4 μm) was dispersed in water at a concentration of 20% by weight. Next, this dispersion was wet-pulverized using a beads mill pearl mill (manufactured by Ashizawa Co., Ltd.) to have a median diameter of 0.51 μm.
(0.1 to 3.9 μm particles are 99% of the total particles) and 0.26 μm (0.1 to 1.0 μm particles are 98% of the total particles). . For comparison, commercially available calcium carbonate was similarly wet-pulverized to a median diameter of 0.25 μm (0.1 to 1.0 μm).
(A particle of 0 μm has a volume of 98% of the total particles). These dispersions were placed in a glass bottle and allowed to stand at 5 ° C., and immediately after the preparation, three weeks later and one month later, the particle size was examined with a particle size distribution analyzer LA-700 manufactured by Horiba, Ltd. Table 2 shows the results.

[0038]

[Table 2]

As can be seen from Table 2, the median diameter is 0.1 mm.
The median diameter of the 51 μm dolomite microparticles hardly changed even after 3 weeks and 1 month, indicating that no reaggregation of the microparticles has occurred. The dolomite fine particles having a median diameter of 0.26 μm increased to 0.37 μm after 3 weeks and 0.87 μm after 1 month, and a phenomenon of agglomeration of the fine particles was observed. There was no aggregation to such a size. The dolomite fine particles having an initial median diameter of 0.26 μm formed an aggregate of 0.37 μm after storage for 3 weeks. When the aggregate was ultrasonically treated with an ultrasonic crusher, the processing time was 1 minute. Median diameter 0.33μm
In addition, the median diameter becomes 0.27 μm in 6 minutes, and it can be seen that the once formed aggregate is easily redispersed. On the other hand, calcium carbonate was aggregated so as to cause precipitation after 3 weeks, and this aggregation was difficult to easily redisperse by ultrasonic treatment.

The ultrasonic crusher is a US-type ultrasonic crusher.
300 (manufactured by Nippon Seiki) was used. After stirring with a stirrer in a 100 ml beaker, the solid content of the dispersion is about 0.
The mixture was put into 5 g and diluted with 50 ml of pure water and subjected to ultrasonic treatment. The nozzle of the ultrasonic processor is 1 from the liquid level.
0mm inside and turn the level knob of the sonicator to 3
Processing was performed for a predetermined time according to 00 μA.

Example 9 A 25 wt% dolomite fine particle aqueous suspension having various median diameters was prepared. Three weeks later, the presence or absence of aggregation was determined by microscopic observation. Table 3 shows the results. As can be seen from Table 3, aggregation was hardly observed in the dolomite fine particles having a median diameter of 0.3 μm or more.

[0042]

[Table 3]

Example 10 Dolomite and calcium carbonate were wet-pulverized to have median diameters of 0.5 μm and 0.26 μm, respectively.
A dispersion of 25% by weight of pulverized fine particles was prepared. 2 g of this was added to 100 g of milk, and the presence or absence of aggregation immediately after the addition was observed. Next, heat treatment was performed at 80 ° C. for 10 minutes, and the state of aggregation was observed. Similarly, a fine particle dispersion obtained by adding a polyglycerin fatty acid ester [Sunsoft A-141E, manufactured by Taiyo Kagaku Co., Ltd.] after the completion of pulverization was added to milk, and the coagulation state was observed immediately after the addition and after heat treatment. Table 4 shows the results.

[0044]

[Table 4]

As can be seen from Table 4, the median diameter is 0.1 mm.
In the case of 5 μm dolomite fine particles without emulsifier,
Aggregation observed immediately after addition to the milk disappeared by the heat treatment. When the dolomite fine particles having a median diameter of 0.26 μm were not added with the emulsifier, aggregation was observed regardless of the presence or absence of heating. However, when the emulsifier was added, the aggregation was suppressed. On the other hand, with calcium carbonate, aggregation could not be eliminated even by the addition of an emulsifier after heat treatment or pulverization. Thus, in the case of fine particles such as calcium carbonate, it is generally difficult to dissociate the once aggregated fine particles, whereas in the case of dolomite fine particles,
Aggregation of the fine particles once aggregated can be easily dissociated by the addition of the aggregation inhibitor / dispersant.

[0046]

According to the present invention, it is possible to produce a dolomite fine particle dispersion having good suspension and dispersibility, in which aggregation is suppressed and precipitation is hardly caused. By using this dispersion, a beverage in which calcium and magnesium are fortified can be provided.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masao Kimura 2 Miyukigaoka, Tsukuba, Ibaraki Prefecture Kyowa ▲ Fermentation ▼ Yatsu Kogyo Co., Ltd., Tsukuba Research Laboratory (72) Inventor Soichi Nakayama 2, Miyukigaoka, Tsukuba, Ibaraki Address Kyowa ▲ Fermentation ▼ Inside Tsukuba Research Laboratories Yoji Kogyo Co., Ltd. (72) Inventor Takahiro Hara 2 Miyukigaoka, Tsukuba City, Ibaraki Prefecture Kyowa ▲ Fermentation ▼ Inside Tsukuba Research Laboratories Yoji Kogyo Co., Ltd. 1-8-5 Shinkawa Kyowa High Foods, Inc. (72) Inventor Maki Honda 1-8-5 Shinkawa, Chuo-ku, Tokyo Kyowa High Foods, Inc. (72) Inventor Tadashi Yasuda Ichihara, Chiba Goi south coast 8-2 Ube Materials Co., Ltd. (72) Inventor Takashi Watanabe 8-2 Goi south coast Ube Ichihara-shi, Chiba Teriaruzu Co., Ltd. in the F-term (reference) 4B001 AC03 AC40 AC46 BC02 BC12 EC05 4B017 LC03 LK03 LK13 LK18 LL06 LP18 4B018 LB08 LE05 MD03 MD04 MD33 MD71 ME05 MF02 MF07

Claims (37)

[Claims] 1. A method for producing a dolomite fine particle-dispersed beverage, comprising dispersing dolomite fine particles having a median diameter of less than 1 μm in a beverage. 2. The method for producing a dolomite fine particle-dispersed beverage according to claim 1, wherein dolomite fine particles having a median diameter of 0.05 to 0.8 μm are used as the dolomite fine particles having a median diameter of less than 1 μm. 3. A method for producing a dolomite fine particle-dispersed beverage according to claim 1, wherein a dolomite fine particle dispersion obtained by wet-milling dolomite is used as the dolomite fine particles having a median diameter of less than 1 μm. 4. The method for producing a dolomite fine particle-dispersed beverage according to claim 3, wherein the dolomite fine particle dispersion contains an anti-agglomeration agent. 5. The method according to claim 3, wherein the dolomite fine particle dispersion contains a dispersant. 6. The method for producing a dolomite fine particle-dispersed beverage according to any one of claims 1 to 5, wherein the dolomite fine particle-dispersed beverage contains an anti-agglomeration agent. 7. The method for producing a dolomite fine particle-dispersed beverage according to claim 1, wherein the dolomite fine particle-dispersed beverage contains a dispersant. 8. The method according to claim 4, wherein the coagulation inhibitor is an emulsifier. 9. The method for producing a dolomite fine particle-dispersed beverage according to claim 5, wherein the dispersant is a polysaccharide. 10. The method for producing a dolomite particulate dispersed beverage according to claim 1, wherein the dolomite particulate-containing beverage is a neutral beverage. 11. A dolomite fine particle-dispersed beverage containing dolomite fine particles having a median diameter of less than 1 μm. 12. The dolomite fine particle dispersion beverage according to claim 11, wherein the dolomite fine particles having a median diameter of less than 1 μm are dolomite fine particles having a median diameter of 0.05 to 0.8 μm. 13. The dolomite fine particle dispersion beverage according to claim 11, wherein the dolomite fine particles having a median diameter of less than 1 μm are dolomite fine particles obtained by wet-milling dolomite. 14. The dolomite microparticle-dispersed beverage according to claim 11, wherein the dolomite microparticle-containing beverage contains an anti-agglomeration agent. 15. The dolomite fine particle-dispersed beverage according to claim 14, wherein the coagulation inhibitor is an emulsifier. 16. The dolomite particulate dispersion beverage according to claim 11, wherein the dolomite particulate dispersion beverage contains a dispersant. 17. The dolomite particulate dispersion beverage according to claim 16, wherein the dispersant is a polysaccharide. 18. The dolomite particulate dispersion beverage according to claim 11, wherein the dolomite particulate beverage is a neutral beverage. 19. A dolomite fine particle dispersion, wherein dolomite fine particles having a median diameter of less than 1 μm are dispersed in a liquid. 20. The dolomite fine particle dispersion according to claim 19, wherein the dolomite fine particles having a median diameter of less than 1 μm are dolomite fine particles having a median diameter of 0.05 to 0.8 μm. 21. The dolomite microparticles are 0.3 to 0.8.
21. The dolomite fine particle dispersion according to claim 19, wherein the dolomite fine particle dispersion has a median diameter of 0.1 [mu] m, and particles of 0.1 to 3.9 [mu] m have a volume of 90% or more of the whole particles. 22. Dolomite microparticles having a particle size of 0.05 to 0.1.
21. The dolomite fine particle dispersion according to claim 19, wherein the dolomite fine particle dispersion has a median diameter of 3 [mu] m and particles of 0.01 to 1.0 [mu] m have a volume of 90% or more of the whole particles. 23. The dolomite fine particle dispersion according to claim 19, wherein the dolomite fine particles are dolomite fine particles obtained by wet-milling dolomite. 24. The dolomite fine particle dispersion according to any one of claims 19 to 23, wherein the dolomite fine particle dispersion contains an anti-agglomeration agent. 25. The dolomite fine particle dispersion according to claim 24, wherein the aggregation preventing agent is an emulsifier. 26. The dolomite fine particle dispersion according to any one of claims 19 to 25, wherein the dolomite fine particle dispersion contains a dispersant. 27. The dolomite fine particle dispersion according to claim 26, wherein the dispersant is a polysaccharide. 28. A method for producing a dolomite fine particle dispersion, wherein dolomite is wet-pulverized in a liquid to obtain dolomite fine particles having a median diameter of less than 1 μm. 29. The method according to claim 28, wherein the dolomite fine particles having a median diameter of less than 1 μm are dolomite fine particles having a median diameter of 0.05 to 0.8 μm. 30. The method for producing a dolomite fine particle dispersion according to claim 28, wherein an anti-agglomeration agent is added before and after the wet pulverization. 31. The method for producing a dolomite fine particle dispersion according to claim 30, wherein the coagulation inhibitor is an emulsifier. 32. The method for producing a dolomite fine particle dispersion according to claim 28, wherein a dispersant is added before and after the wet pulverization. 33. The method for producing a dolomite fine particle dispersion according to claim 32, wherein the dispersant is a polysaccharide. 34. Dolomite microparticles having a median diameter of less than 1 μm. 35. The dolomite microparticles having a particle size of 0.05 to 0.1.
4. The method according to claim 3, wherein the median diameter is 8 [mu] m.
4. Dolomite fine particles according to 4. 36. The dolomite microparticles are 0.3 to 0.8.
The dolomite fine particles according to claim 34 or 35, having a median diameter of μm and particles of 0.1 to 3.9 μm having a volume of 90% or more of the whole particles. 37. The dolomite microparticles are in a range of 0.05 to 0.1.
The dolomite fine particles according to claim 34 or 35, having a median diameter of 3 µm and particles of 0.01 to 1.0 µm having a volume of 90% or more of the whole particles.