WO2015128940A1 - 医薬用又は食品添加用酸化マグネシウム顆粒 - Google Patents
医薬用又は食品添加用酸化マグネシウム顆粒 Download PDFInfo
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- WO2015128940A1 WO2015128940A1 PCT/JP2014/054516 JP2014054516W WO2015128940A1 WO 2015128940 A1 WO2015128940 A1 WO 2015128940A1 JP 2014054516 W JP2014054516 W JP 2014054516W WO 2015128940 A1 WO2015128940 A1 WO 2015128940A1
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- Prior art keywords
- magnesium oxide
- granules
- tablet
- oxide granules
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/06—Aluminium, calcium or magnesium; Compounds thereof, e.g. clay
- A61K33/08—Oxides; Hydroxides
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/16—Inorganic salts, minerals or trace elements
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P10/00—Shaping or working of foodstuffs characterised by the products
- A23P10/20—Agglomerating; Granulating; Tabletting
- A23P10/22—Agglomeration or granulation with pulverisation of solid particles, e.g. in a free-falling curtain
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P10/00—Shaping or working of foodstuffs characterised by the products
- A23P10/20—Agglomerating; Granulating; Tabletting
- A23P10/28—Tabletting; Making food bars by compression of a dry powdered mixture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1611—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2095—Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/10—Laxatives
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Definitions
- the present invention relates to magnesium oxide granules for pharmaceutical use or food addition.
- Magnesium oxide tablets are widely used as pharmaceutical laxatives and mineral supplements, etc. (eg, Patent Documents 1 to 3).
- tablets are manufactured by compressing raw materials into tablets. Further, this compression molding step is called a tableting step. In the tableting process, the compression operation is performed continuously and at high speed. Under these conditions, stress and density are distributed inside the tablet, and the internal structure is never uniform, which is considered to be the main cause of tableting failure, quality characteristic abnormality, etc. Be
- the tableting obstacles include capping, laminating, sticking, picking and the like.
- Capping is a phenomenon in which the tablet peels like a hat after the tablet is molded and then discharged from the die or after discharging from the die
- laminating is a phenomenon in which the capping is further exacerbated and the layer peels laterally along the top surface of the tablet.
- Sticking is a phenomenon in which powder adheres to a ⁇ (compression rod) in a compression stroke and the tablet surface is damaged as if it were dented
- chipping is also a phenomenon in which the tablet surface is slightly damaged for the same reason.
- magnesium oxide is added to a method of calcining magnesium carbonate, calcium hydroxide is added to seawater or an aqueous solution of magnesium chloride (waste water or irrigation) to produce magnesium hydroxide, which is filtered and dried, There is a method of firing (Patent Document 4).
- Magnesium oxide manufactured by calcining the above-mentioned magnesium hydroxide has different properties and uses at the calcination temperature. For example, magnesium hydroxide fired at a high temperature of 1500 ° C. or higher has little activity, has high temperature fire resistance performance, and is used as a material for basic refractory bricks and monolithic refractories as a refractory material. .
- magnesium oxide obtained by firing magnesium hydroxide at 450 to 1300 ° C. has a relatively high activity and is a magnesia cement material, or an additive such as a fertilizer or a food as a mineral source, an antacid agent, an adjuvant and the like. It is used as a raw material for pharmaceuticals. Since this magnesium oxide is directly or indirectly ingested by the human body as a fertilizer, additives such as food, as a pharmaceutical raw material, or as a cosmetic raw material, it has a heavy metal content or content because it is to be in contact with the human body as a cosmetic raw material. Fewer, higher purity products are desired.
- magnesium oxide which can be suitably used for pharmaceuticals or food additives, which has high purity and which can reduce problems when tableting.
- the present invention makes it a main subject to provide magnesium oxide which can be conveniently used for medicine or food additives. Specifically, it is intended to provide magnesium oxide granules capable of reducing tableting problems when tableting as well as tablet quality characteristics abnormalities, and further reducing tableting defects and tablet quality characteristics abnormalities. It is an object of the present invention to provide magnesium oxide granules having a high content of heavy metals and high purity of magnesium oxide.
- magnesium oxide granules having a BET specific surface area of about 7 to about 50 m 2 / g and an activity (see the description below) in a predetermined range. Provides the remarkable and excellent effect unique to the present invention, that unexpectedly, the tablet strength when tableted can be improved, and the tableting failure in the production of magnesium oxide tablets can be reduced. New findings were obtained and further studies were conducted to complete the present invention.
- the present invention relates to the following.
- Magnesium oxide granules for pharmaceutical use or food addition which have a BET specific surface area of 7 to 50 m 2 / g and a CAA 80 / CAA 40 of 2 to 7.
- the magnesium oxide granule according to the above (1) which has a BET specific surface area of 10 to 45 m 2 / g and a CAA 80 / CAA 40 of 2.2 to 6.
- the magnesium oxide granule according to the above (1) or (2) which has a bulk density of 700 to 1000 g / L.
- the tableting disorder in manufacture of a magnesium oxide tablet can be reduced, and the quality characteristic abnormality of the magnesium oxide tablet resulting from the lack of strength of a tablet can be reduced. Furthermore, since the magnesium oxide granules of the present invention have a low content of heavy metals and high purity of magnesium oxide, the present invention provides safe magnesium oxide granules which can be suitably used for medicine or food additives. be able to.
- One aspect of the present invention relates to magnesium oxide granules for pharmaceutical use or food addition.
- the magnesium oxide granules of the present invention preferably, tableting problems when producing tablets and / or tablet strength when made into tablets can be improved.
- magnesium oxide may be described as "MgO".
- the magnesium oxide granules of the present invention generally have a BET specific surface area of about 7 to about 50 m 2 / g, preferably about 10 to about 45 m 2 /, from the viewpoint of improving tableting problems in tablet production or improving tablet strength. g, more preferably about 12 to about 40 m 2 / g.
- the magnesium oxide granules of the present invention are generally about 2 to about 7 CAA 80 / CAA 40, preferably about 2.2 to about 7 from the viewpoint of improvement of tableting problems in tablet production and / or improvement of tablet strength. 6, more preferably about 2.4 to about 5.
- CAA is an index indicating the activity of magnesium oxide, and is represented by the time required for the reaction between citric acid and a predetermined amount of magnesium oxide.
- CAA80 indicates the time taken for the reaction of 80 mol% of the total amount of magnesium oxide to be added after the addition of a predetermined amount of magnesium oxide to citric acid
- CAA 40 similarly shows a predetermined amount of citric acid. It shows the time taken from the addition of magnesium oxide to the reaction of 40 mol% of the total amount of magnesium oxide added.
- CAA80 / CAA40 shows the ratio with respect to CAA40 of CAA80.
- JP-A-7-187662 describes that the activity of magnesium oxide was measured by the same method.
- the magnesium oxide granules have a BET specific surface area of about 7 to about 50 m 2 / g and a CAA 80 / CAA 40 of about 2 to about 7.
- the surface area is about 12 to about 40 m 2 / g and the CAA 80 / CAA 40 is about 2.4 to about 5.
- the bulk density of the magnesium oxide granules is not particularly limited as long as tableting failure or tablet strength is improved, but preferably about 700 to about 1000 g / L, Preferably, it is about 750 to about 990 g / L.
- the "bulk density" is a bulk density defined in the Japanese Pharmacopoeia.
- the magnesium oxide granule has a BET specific surface area of about 7 to about 50 m 2 / g, a CAA 80 / CAA 40 of about 2 to about 7, and a bulk density of about 700 to about 1000 g / L. is there.
- the particle diameter of the magnesium oxide granules is not particularly limited as long as tableting failure or tablet strength is improved, but the granules having a particle diameter of less than about 150 ⁇ m usually have a total weight of about 10 % Or less, preferably about 9% by weight or less, more preferably about 8% by weight or less.
- the average particle size of the magnesium oxide granules is not particularly limited, but for example, usually about 150 to about 425 ⁇ m, preferably from about 180 to about 400 ⁇ m, more preferably about 200 to about from the viewpoint of tableting failure or tablet strength improvement. It is about 380 ⁇ m.
- any method may be used as long as it is a method generally used in this field.
- the values obtained by any measurement method are within the technical scope of the present invention as long as they fall within the above range.
- the pure portion (Assay) of the magnesium oxide granules is preferably at least about 96%, more preferably at least about 96.5%, from the viewpoint of use for medicine or food addition. Particularly preferably, it is 97% or more.
- the pure content (Assay) of magnesium oxide granules is a value determined according to the United States Pharmacopoeia (USP). Specifically, 0.5 g of magnesium oxide which has been calcined at 800 ° C. and has a constant mass is weighed, dissolved in 30 ml of 1N sulfuric acid and dissolved, and the solution is titrated with 1N caustic soda.
- the magnesium oxide granules contain about 20 ppm or less of lead (Pb) and about 4 ppm or less of arsenic (As) in the total weight of the magnesium oxide granules. More preferably, the content of Pb is about 10 ppm or less and the content of As is about 3 ppm or less.
- Pb lead
- As arsenic
- the magnesium oxide used for producing the magnesium oxide granules of the present invention may be produced according to a known method, a method known per se or a method analogous thereto.
- the magnesium oxide is produced by calcining magnesium hydroxide.
- the method for producing magnesium hydroxide used in the present invention is well established in the past, and may be followed in the present invention. Moreover, you may use a commercially available thing for magnesium hydroxide.
- magnesium oxide obtained by firing magnesium hydroxide at a firing temperature of about 1000 ° C. to about 2000 ° C. is referred to as “low active magnesium oxide”, and is fired at a firing temperature of about 450 ° C. to about 900 ° C.
- the magnesium oxide obtained is called "medium active magnesium oxide”.
- the firing time is not particularly limited, and for example, it is usually about 30 minutes to about 5 hours, preferably about 1 hour to about 3 hours.
- the low active magnesium oxide preferably has a BET specific surface area of about 0.05 to about 15 m 2 / g, more preferably about 0.1 to about 10 m 2 / g. Also, the low activity magnesium oxide preferably has a CAA 80 of about 550 to about 850 seconds, more preferably about 600 to about 800 seconds, and CAA 40 preferably of about 250 to about 550 seconds, more preferably about 300. Seconds to about 500 seconds.
- the medium active magnesium oxide preferably has a BET specific surface area of about 20 to about 80 m 2 / g, more preferably about 25 to about 75 m 2 / g.
- the medium active magnesium oxide preferably has a CAA 80 of about 100 to about 300 seconds, more preferably about 100 to about 250 seconds, and CAA 40 preferably of about 50 to about 100 seconds, more preferably about 60. Seconds to about 95 seconds.
- the method of measuring the BET specific surface area is not particularly limited as long as it is a method generally used in this field.
- the values obtained by any measurement method are within the technical scope of the present invention as long as they fall within the above range.
- the measurement method (magnesium oxide granules) subjected to heat treatment in a nitrogen gas atmosphere as pretreatment is measured by a nitrogen gas adsorption method using a BET specific surface area measuring device. It is also good.
- the pretreatment may be performed, for example, at about 130 ° C. for about 30 minutes under a nitrogen gas atmosphere.
- the apparatus used to perform pretreatment and the BET specific surface area measuring apparatus are not particularly limited, and any apparatus generally used in this field may be used.
- the magnesium oxide granules are produced by mixing the low activity magnesium oxide and the medium activity magnesium oxide, applying pressure and then grinding.
- the mixing ratio of the low active magnesium oxide to the medium active magnesium oxide is not particularly limited, but from the viewpoint of setting the physical properties of the obtained magnesium oxide granules to a desired value
- the active magnesium oxide content is preferably in the range of 10:90 to 80:20. Further, the mixing ratio may be appropriately selected in order to make the obtained magnesium oxide granules have desired physical properties. When the proportion of low active magnesium oxide is high, the bulk density and the net content become high, while the BET specific surface area and the tablet strength become low.
- the conditions for pressurizing the mixture of low activity magnesium oxide and medium activity magnesium oxide in the production of the magnesium oxide granules are not particularly limited, but usually magnesium oxide granules having desired physical properties of about 5 to about 35 MPa are obtained. From the point of view, preferably it is about 8 to about 30 MPa, more preferably about 10 to about 25 MPa.
- the apparatus used when performing pressurization is not specifically limited, For example, you may use a roller compactor etc.
- the grinding method in the grinding process after pressurization is not specifically limited, For example, you may grind
- the grinding method may be, specifically, a method in which the pressed magnesium oxide is passed through a gap between the rotated rolls using a roll granulator in which the rolls are vertically set in three stages, and then crushed.
- the present invention also includes within its scope a magnesium oxide tablet containing the above magnesium oxide granules.
- the production of tablets may be followed accordingly, since the method for producing tablets is well established in the past.
- the magnesium oxide tablet of the present invention may be produced by combining the magnesium oxide granules, the binder, the disintegrant and the like.
- the binder is not particularly limited, and examples thereof include sodium carboxymethylcellulose, low-substituted hydroxypropyl cellulose, crystalline cellulose, and starch (eg corn starch).
- the disintegrant is not particularly limited, and examples thereof include carboxymethylcellulose calcium, carmellose, low substituted hydroxypropylcellulose, croscarmellose sodium, carmellose calcium and carboxystarch sodium.
- the blending amount of the binder is not particularly limited, and may be, for example, about 1 to about 10% by weight, preferably about 1 to about 8% by weight in a tablet.
- the blending amount of the disintegrant is not particularly limited, and may be, for example, about 1 to about 10% by weight, preferably about 1 to about 5% by weight in a tablet.
- the tablet may further contain an excipient, a lubricant and the like.
- the excipient is not particularly limited, and examples thereof include lactose, sucrose, mannitol, corn starch, crystalline cellulose and the like.
- the lubricant is not particularly limited, and examples thereof include sucrose fatty acid ester, polyethylene glycol, talc, stearic acid or stearate (Na, Mg or Ca salt).
- the tablet may optionally contain additives such as plasticizers, coatings, anticoagulants, solubilizers, sweeteners, acidulants, flavoring agents, pH adjusters, solubilizers, colorants, or flavors, etc. You may contain more than.
- plasticizer examples include triethyl citrate, glycerin fatty acid ester, polyethylene glycol and the like.
- coating agent examples include ethyl cellulose, hydroxypropyl methyl cellulose and the like.
- anticoagulant examples include talc and calcium stearate.
- solubilizer examples include sucrose fatty acid ester, sorbitan monostearate, sodium lauryl sulfate and the like.
- sweetener examples include aspartame, saccharin, dipotassium glycyrrhizinate, and stevia.
- acidulant organic acid
- acidulant organic acid
- Examples of the flavoring agent include l-menthol, sodium chloride, acesulfame potassium, sucralose and the like.
- Examples of the pH adjuster include citrate, phosphate, carbonate, acetate and the like.
- Examples of the solubilizer include cyclodextrin, arginine, lysine, trisaminomethane and the like.
- Examples of the colorant include yellow ferric oxide, ferric oxide, copper chlorophyllin sodium and the like.
- Examples of the flavor include orange oil, lemon oil, peppermint oil, eucalyptus oil and the like.
- the strength of the tablet of the present invention is preferably about 60 N to about 200 N from the viewpoint of improving quality characteristics.
- the tablet is preferably an orally disintegrating tablet.
- the disintegration time in the oral cavity of the tablet is not particularly limited, but is, for example, usually about 1 to about 60 seconds, preferably about 5 to 45 seconds, more preferably about 5 to 20 seconds.
- ⁇ Tabletting method and measuring method of tablet strength > (1) 300 mg of magnesium oxide granules to which 4 to 10% by weight of a binder had been added was subjected to a pressure of 5 MPa with a tableting machine (HATA: HT-AP18SS-II type 750) to form pellets of 8 mm in diameter and 4 mm in thickness. Starch was used as a binder. (2) The tablet strength of the molded pellet was measured using a tablet breaking strength measuring instrument (Toyama Sangyo: TH303MP).
- HATA HT-AP18SS-II type 750
- Activated Magnesium Oxide A magnesium hydroxide (manufactured by Kamijima Chemical Industry Co., Ltd., grade name: # 200) was calcined at 900 ° C. for 2 hours in an electric furnace to produce activated magnesium oxide.
- the medium active magnesium oxide thus obtained had a BET specific surface area of 51 m 2 / g.
- Reference Example 2 Production of Low Active Magnesium Oxide Magnesium hydroxide (manufactured by Kamijima Chemical Industries, Ltd., grade name: # 200) was fired at 1100 ° C. for 2 hours in an electric furnace to produce low active magnesium oxide.
- the low active magnesium oxide thus obtained had a BET specific surface area of 3 m 2 / g.
- Example 2 Magnesium oxide granules were produced in the same manner as in Example 1 except that the mixing ratio of medium activity MgO to low activity MgO was set to 60:40 (% by weight).
- Example 3 Magnesium oxide granules were produced in the same manner as in Example 1 except that the mixing ratio of medium activity MgO to low activity MgO was 40:60 (% by weight).
- Example 4 Magnesium oxide granules were produced in the same manner as in Example 1 except that the mixing ratio of medium activity MgO to low activity MgO was 20:80 (% by weight).
- Example 5 Magnesium oxide granules were produced in the same manner as in Example 1 except that the mixing ratio of medium activity MgO to low activity MgO was 10:90 (% by weight).
- Comparative Example 1 Magnesium oxide granules were produced in the same manner as in Example 1 except that only medium-active MgO was used.
- Comparative Example 2 Magnesium oxide granules were produced in the same manner as in Example 1 except that only low activity MgO was used.
- Comparative Example 3 Magnesium oxide granules were produced in the same manner as in Example 1 except that magnesium oxide having a BET specific surface area of 22 m 2 / g was used.
- the magnesium oxide granules of Examples 1 to 4 which are the practical products of the present invention have no problems such as sticking and capping at the time of tableting, and the strength of the obtained tablet is also sufficient.
- the magnesium oxide granules of the present invention can reduce tableting problems in the production of magnesium oxide tablets, and can reduce the quality characteristics of magnesium oxide tablets caused by the lack of strength of the tablets, thereby producing magnesium oxide tablets. The efficiency can be significantly improved. Furthermore, since the magnesium oxide granules of the present invention have a low content of heavy metals and high purity of magnesium oxide, the present invention provides safe magnesium oxide granules which can be suitably used for medicine or food additives. be able to.
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Abstract
Description
上記の水酸化マグネシウムを焼成して製造される酸化マグネシウムは、その焼成温度でその性質や用途が異なる。例えば、水酸化マグネシウムを1500℃以上の高温で焼成したものは、活性がほとんどなく、高温耐火性能を有し、耐火物材料として塩基性耐火れんがや不定形耐火物の原料などに利用されている。また、水酸化マグネシウムを450~1300℃で焼成して得られる酸化マグネシウムは、活性が比較的大きく、マグネシアセメント材料、あるいはミネラルの供給源として肥料、食品等の添加剤、制酸剤や下剤等の医薬品の原料などに利用されている。この酸化マグネシウムは肥料、食品等の添加剤、医薬品原料として、人体に直接あるいは間接的に摂取され、あるいは化粧品原料として人体に接触するためのものであるため、重金属の混有量もしくは含有量がより少なく、純度の高いものが望まれている。
(1) BET比表面積が7~50m2/g、且つ、CAA80/CAA40が2~7である医薬用又は食品添加用の酸化マグネシウム顆粒。
(2) BET比表面積が10~45m2/g、且つ、CAA80/CAA40が2.2~6である前記(1)に記載の酸化マグネシウム顆粒。
(3) かさ密度が700~1000g/Lである前記(1)又は(2)に記載の酸化マグネシウム顆粒。
(4) 酸化マグネシウムの純分(Assay)が96%以上である前記(1)~(3)のいずれか1項に記載の酸化マグネシウム顆粒。
(5) 粒子径150μm未満の顆粒が、全体の10重量%以下である前記(1)~(4)のいずれか1項に記載の酸化マグネシウム顆粒。
(6) 前記酸化マグネシウム顆粒の重量中、Pbの含有量が20ppm以下、Asの含有量が4ppm以下である前記(1)~(5)のいずれか1項に記載の酸化マグネシウム顆粒。
(7) 重量比で、中活性酸化マグネシウム:低活性酸化マグネシウムを10:90~80:20の割合で混合する工程、該混合物を加圧する工程、その後、混合物を粉砕する工程を含む、前記(1)~(6)のいずれか1項に記載の酸化マグネシウム顆粒の製造方法。
(8) 前記(1)~(6)のいずれか1項に記載の酸化マグネシウム顆粒を打錠することを特徴とする酸化マグネシウム錠剤の製造方法。
(9) 前記(1)~(6)のいずれか1項に記載の酸化マグネシウム顆粒を含有する酸化マグネシウム錠剤。
なお、本明細書では酸化マグネシウムを「MgO」と表記することもある。
また、「CAA80/CAA40」は、CAA80のCAA40に対する比を示す。
なお、CAAに関し、特開平7-187662号には、同様の方法で酸化マグネシウムの活性を測定したことが記載されている。
なお、本発明において前記「かさ密度」は、日本薬局方に規定されるかさ密度である。
また、酸化マグネシウム顆粒の平均粒子径は、特に限定されないが、例えば、通常約150~約425μm、打錠障害又は錠剤強度改善の観点から、好ましくは約180~約400μm、より好ましくは約200~約380μmである。なお、酸化マグネシウム顆粒の粒子径の測定方法は、通常この分野で用いられる方法であれば、いずれの方法を用いてもよい。いずれの測定方法により得られた値であっても、上記範囲に入れば、本発明の技術的範囲内である。
なお、本発明において酸化マグネシウム顆粒の純分(Assay)は、米国薬局方(USP)に従って決定した値である。具体的には、800℃で焼成し、恒量となった酸化マグネシウムを0.5g量りとり、1N硫酸30mlを加えて溶解させ、該溶液を1N苛性ソーダで滴定することにより求める。
ここで、本発明において、水酸化マグネシウムを焼成温度約1000℃~約2000℃で焼成して得られる酸化マグネシウムを「低活性酸化マグネシウム」といい、焼成温度約450℃~約900℃で焼成して得られる酸化マグネシウムを「中活性酸化マグネシウム」という。また、焼成時間は、特に限定されないが、例えば、通常約30分~約5時間、好ましくは約1時間~約3時間である。
前記中活性酸化マグネシウムは、BET比表面積が、好ましくは約20~約80m2/g、より好ましくは約25~約75m2/gである。また、前記中活性酸化マグネシウムは、CAA80が、好ましくは約100~約300秒、より好ましくは約100~約250秒であり、CAA40が、好ましくは約50~約100秒、より好ましくは約60秒~約95秒である。
また、加圧後の粉砕工程における粉砕方法は、特に限定されず、例えば、グラニュレーターを用いて粉砕してもよい。前記グラニュレーターとしては、特に限定されないが、例えば、ロールグラニュレーターが挙げられる。粉砕方法は、具体的には、ロールを縦に3段セットしたロールグラニュレーターを用いて、回転させたロールの隙間に加圧した酸化マグネシウムを通過させて粉砕させる方法であってもよい。
さらに、前記錠剤は、所望により可塑剤、コーティング剤、凝集防止剤、可溶化剤、甘味料、酸味料、矯味料、pH調整剤、溶解補助剤、着色料、又は香料等の添加剤を1以上含有してもよい。前記可塑剤としては、例えばクエン酸トリエチル、グリセリン脂肪酸エステル、ポリエチレングリコール等があげられる。前記コーティング剤としては、例えばエチルセルロース、ヒドロキシプロピルメチルセルロース等があげられる。前記凝集防止剤としては、例えばタルク、ステアリン酸カルシウム等があげられる。前記可溶化剤としては、例えばショ糖脂肪酸エステル、モノステアリン酸ソルビタン、ラウリル硫酸ナトリウム等があげられる。前記甘味料としては、例えばアスパルテーム、サッカリン、グリチルリチン酸二カリウム、ステビア等があげられる。前記酸味料(有機酸)としては、例えばクエン酸、リンゴ酸、アスコルビン酸、フマル酸等があげられる。前記矯味剤としては、例えば、l-メントール、塩化ナトリウム、アセスルファムカリウム、スクラロース等があげられる。前記pH調整剤としては、例えばクエン酸塩、リン酸塩、炭酸塩、酢酸塩等があげられる。前記溶解補助剤としては、例えばシクロデキストリン、アルギニン、リジン、トリスアミノメタン等があげられる。前記着色料としては、例えば黄色三二酸化鉄、三二酸化鉄、銅クロロフィリンナトリウム等があげられる。前記香料としては、例えばオレンジ油、レモン油、ハッカ油、ユーカリ油等があげられる。
(1)100mLの0.4Nクエン酸を30℃に調整した。
(2)前記(1)のクエン酸にフェノールフタレイン液を1滴添加した。
(3)前記(2)の溶液に酸化マグネシウム顆粒を添加後(※)、マグネティックスターラーを550rpmで回転させることにより溶液を撹拌した。
(4)撹拌を開始してから、測定溶液の色が無色から赤紫色へと変化するまでに要した時間を測定し、この時間(秒)をCAA値とした。
※CAA40を測定する場合、上記酸化マグネシウム顆粒0.05molを添加して測定した。酸化マグネシウム顆粒0.02mol(全体の40%)が反応すると、測定液の色が無色から赤紫色へと変化する。また、CAA80を測定する場合、上記酸化マグネシウム顆粒の添加量を0.025molとして測定した。
酸化マグネシウム顆粒の純分は、米国薬局方(United States Pharmacopeia、USP)に従って測定した。
日本薬局方のかさ密度の測定方法の第1法に従って測定した。
ICP-MS法によって測定した。具体的には、試料(酸化マグネシウム顆粒)を7N硝酸に溶解させ、この試料溶液を純水で希釈した後、SPQ-9000型同軸ネブライザー(セイコーインスツルメンツ社製)を用いて測定した。別途、Pb及びAsの標準試料を用いて検量線を作成し、検量線法により、酸化マグネシウム顆粒中のPb及びAsの含有量を算出した。
(1)結合剤を4~10重量%添加した酸化マグネシウム顆粒300mgを打錠機(HATA:HT-AP18SS-II型750号)で5MPaの圧力をかけてφ8mm、厚み4mmのペレットを成型した。結合剤には、デンプンを用いた。
(2)錠剤破壊強度測定器(富山産業:TH303MP)を用いて成型したペレットの錠剤強度を測定した。
水酸化マグネシウム(神島化学工業社製、グレード名:#200)を電気炉で、900℃で2時間焼成して中活性酸化マグネシウムを製造した。このようにして得られた中活性酸化マグネシウムは、BET比表面積51m2/gであった。
<参考例2>低活性酸化マグネシウムの製造
水酸化マグネシウム(神島化学工業社製、グレード名:#200)を電気炉で、1100℃で2時間焼成して低活性酸化マグネシウムを製造した。このようにして得られた低活性酸化マグネシウムは、BET比表面積3m2/gであった。
参考例1で製造したBET比表面積51m2/gの中活性酸化マグネシウム(以降、中活性MgOという。)と、参考例2で製造したBET比表面積3m2/gの低活性酸化マグネシウム(以降、低活性MgOという。)の割合が、中活性MgO:低活性MgO=80:20(重量%)となるように混合した混合物を、フロイント・ターボ製の横型ローラーコンパクターを用いてロール圧力10MPaをかけた。その後、グラニュレーター(日本グラニュレーター社製、型番:GRN1031)を用いて粉砕を行った。
粉砕後、振動篩(20メッシュ及び60メッシュ)で篩別を行い、20メッシュオーバーと60メッシュアンダーの顆粒を取り除いて酸化マグネシウム顆粒を作製した。
<実施例2>
中活性MgOと低活性MgOの混合比を60:40(重量%)とする以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<実施例3>
中活性MgOと低活性MgOの混合比を40:60(重量%)とする以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<実施例4>
中活性MgOと低活性MgOの混合比を20:80(重量%)とする以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<実施例5>
中活性MgOと低活性MgOの混合比を10:90(重量%)とする以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<比較例1>
中活性MgOのみを用いた以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<比較例2>
低活性MgOのみを用いた以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
<比較例3>
BET比表面積22m2/gの酸化マグネシウムを用いた以外は、実施例1と同様にして酸化マグネシウム顆粒を作製した。
Claims (9)
- BET比表面積が7~50m2/g、且つ、CAA80/CAA40が2~7である医薬用又は食品添加用の酸化マグネシウム顆粒。
- BET比表面積が10~45m2/g、且つ、CAA80/CAA40が2.2~6である請求項1に記載の酸化マグネシウム顆粒。
- かさ密度が700~1000g/Lである請求項1又は2に記載の酸化マグネシウム顆粒。
- 酸化マグネシウム顆粒の純分(Assay)が96%以上である請求項1~3のいずれか1項に記載の酸化マグネシウム顆粒。
- 粒子径150μm未満の顆粒が、全体の10重量%以下である請求項1~4のいずれか1項に記載の酸化マグネシウム顆粒。
- 前記酸化マグネシウム顆粒の重量中、Pbの含有量が20ppm以下、Asの含有量が4ppm以下である請求項1~5のいずれか1項に記載の酸化マグネシウム顆粒。
- 重量比で、中活性酸化マグネシウム:低活性酸化マグネシウムを10:90~80:20の割合で混合する工程、該混合物を加圧する工程、その後、混合物を粉砕する工程を含む、請求項1~6のいずれか1項に記載の酸化マグネシウム顆粒の製造方法。
- 請求項1~6のいずれか1項に記載の酸化マグネシウム顆粒を打錠することを特徴とする酸化マグネシウム錠剤の製造方法。
- 請求項1~6のいずれか1項に記載の酸化マグネシウム顆粒を含有する酸化マグネシウム錠剤。
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| US15/118,950 US10004763B2 (en) | 2014-02-25 | 2014-02-25 | Magnesium oxide granules for pharmaceutical applications or for use as food additives |
| PCT/JP2014/054516 WO2015128940A1 (ja) | 2014-02-25 | 2014-02-25 | 医薬用又は食品添加用酸化マグネシウム顆粒 |
| JP2016504889A JP6343338B2 (ja) | 2014-02-25 | 2014-02-25 | 医薬用又は食品添加用酸化マグネシウム顆粒 |
| EP14883684.4A EP3111957B1 (en) | 2014-02-25 | 2014-02-25 | Magnesium oxide granules for pharmaceutical applications or food additive applications |
| MX2016010918A MX368918B (es) | 2014-02-25 | 2014-02-25 | Granulos de oxido de magnesio para aplicaciones farmaceuticas o para uso como aditivos de alimentos. |
| CA2938003A CA2938003C (en) | 2014-02-25 | 2014-02-25 | Magnesium oxide granules for pharmaceutical applications or for use as food additives |
| CN201480075960.2A CN106029103B (zh) | 2014-02-25 | 2014-02-25 | 医药用或食品添加用的氧化镁颗粒 |
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| US8466187B2 (en) | 2007-09-18 | 2013-06-18 | Thermolife International, Llc | Amino acid compositions |
| US20180215627A1 (en) † | 2016-05-13 | 2018-08-02 | Konoshima Chemical Co., Ltd. | Magnesium oxide powder, and method for producing the same |
| CN107927883A (zh) * | 2018-01-05 | 2018-04-20 | 长沙兴嘉生物工程股份有限公司 | 一种微量营养素补充剂颗粒的制备方法及制备装置 |
| FR3092993B1 (fr) * | 2019-02-21 | 2021-05-21 | Timab Magnesium | Supplément à base de magnésium pour volailles |
| WO2022104157A1 (en) | 2020-11-12 | 2022-05-19 | Thermolife International, Llc | Methods of increasing blood oxygen saturation |
| US11865139B2 (en) * | 2020-11-12 | 2024-01-09 | Thermolife International, Llc | Method of treating migraines and headaches |
| IL315206A (en) | 2021-02-11 | 2024-10-01 | Thermolife Int Llc | A method of administering nitric oxide gas |
| CN116143150A (zh) * | 2021-09-01 | 2023-05-23 | 河北镁神科技有限公司 | 一种压片用食品级颗粒氧化镁及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003033159A (ja) * | 2001-07-24 | 2003-02-04 | Kyowa Hakko Kogyo Co Ltd | 食品添加用酸化マグネシウム粉末 |
| JP2009209048A (ja) * | 2008-02-29 | 2009-09-17 | Tomita Pharmaceutical Co Ltd | 医薬用酸化マグネシウム |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443425A (en) * | 1981-12-09 | 1984-04-17 | Calgon Corporation | Magnesium oxide composition for coating silicon steel |
| JP2665451B2 (ja) | 1993-12-28 | 1997-10-22 | タテホ化学工業株式会社 | アルカリ土類金属酸化物の製造方法 |
| JP4192282B2 (ja) | 1997-12-01 | 2008-12-10 | Jfeスチール株式会社 | 焼鈍分離剤用MgOの製造方法 |
| JP4192283B2 (ja) | 1997-12-24 | 2008-12-10 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
| JP2001048792A (ja) | 1998-11-26 | 2001-02-20 | Fujix Kk | 瀉下剤 |
| JP3939102B2 (ja) | 2001-03-05 | 2007-07-04 | 宇部マテリアルズ株式会社 | 低Pb酸化マグネシウムからなる食品添加剤 |
| JP4015485B2 (ja) | 2001-08-27 | 2007-11-28 | 協和化学工業株式会社 | 制酸・緩下用錠剤 |
| CN1262278C (zh) | 2001-08-27 | 2006-07-05 | 协和化学工业株式会社 | 抗酸·缓泻用片剂 |
| JP4833567B2 (ja) | 2005-03-14 | 2011-12-07 | 協和発酵バイオ株式会社 | 酸化マグネシウム粒子 |
| JP5160156B2 (ja) | 2007-07-05 | 2013-03-13 | 株式会社オオツカ | 栄養機能食品錠剤 |
| JP5564040B2 (ja) * | 2009-04-22 | 2014-07-30 | 協和化学工業株式会社 | 錠剤 |
| WO2011030659A1 (ja) | 2009-09-08 | 2011-03-17 | 協和化学工業株式会社 | 制酸・緩下用錠剤 |
| JP5415215B2 (ja) | 2009-10-02 | 2014-02-12 | タテホ化学工業株式会社 | 分散性に優れる酸化マグネシウム粉末及びその製造方法 |
| CN102515576B (zh) * | 2011-12-05 | 2016-03-30 | 韩大庆 | 磷酸镁水泥用氧化镁及其制备方法和磷酸镁水泥 |
-
2014
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003033159A (ja) * | 2001-07-24 | 2003-02-04 | Kyowa Hakko Kogyo Co Ltd | 食品添加用酸化マグネシウム粉末 |
| JP2009209048A (ja) * | 2008-02-29 | 2009-09-17 | Tomita Pharmaceutical Co Ltd | 医薬用酸化マグネシウム |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3111957A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018030225A1 (ja) * | 2016-08-09 | 2018-02-15 | 神島化学工業株式会社 | 酸化マグネシウム顆粒 |
| JPWO2018030225A1 (ja) * | 2016-08-09 | 2019-06-20 | 神島化学工業株式会社 | 酸化マグネシウム顆粒 |
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| EP3111957B1 (en) | 2018-11-21 |
| CN106029103B (zh) | 2021-12-31 |
| CN106029103A (zh) | 2016-10-12 |
| US20170042935A1 (en) | 2017-02-16 |
| CA2938003A1 (en) | 2015-09-03 |
| US10004763B2 (en) | 2018-06-26 |
| MX2016010918A (es) | 2016-11-14 |
| CA2938003C (en) | 2019-01-08 |
| MX368918B (es) | 2019-10-21 |
| JP6343338B2 (ja) | 2018-06-13 |
| EP3111957A4 (en) | 2017-10-25 |
| JPWO2015128940A1 (ja) | 2017-03-30 |
| EP3111957A1 (en) | 2017-01-04 |
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