WO2018105339A1 - ゲル化補助剤の析出が改善された硬質カプセル、及びその調製方法 - Google Patents
ゲル化補助剤の析出が改善された硬質カプセル、及びその調製方法 Download PDFInfo
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- WO2018105339A1 WO2018105339A1 PCT/JP2017/041048 JP2017041048W WO2018105339A1 WO 2018105339 A1 WO2018105339 A1 WO 2018105339A1 JP 2017041048 W JP2017041048 W JP 2017041048W WO 2018105339 A1 WO2018105339 A1 WO 2018105339A1
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- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/4816—Wall or shell material
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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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
- A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
- A23L29/231—Pectin; Derivatives thereof
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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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
- A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
- A23L29/256—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
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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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
- A23L29/269—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of microbial origin, e.g. xanthan or dextran
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- A—HUMAN NECESSITIES
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- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
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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
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- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
- A61J3/07—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of capsules or similar small containers for oral use
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- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
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- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
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Definitions
- the present invention relates to a hard capsule with improved precipitation of a gelling aid, a preparation liquid of the hard capsule, and a method of preparing the hard capsule.
- thermo gel method a method for producing a hard capsule mainly composed of a cellulose compound. Since the cold gel method can be produced by the same process as that for producing hard capsules using gelatin, the apparatus cost can be reduced. Further, the cold gel method is advantageous in terms of energy cost because the temperature during drying may be about room temperature to 40 ° C., and is preferable from the viewpoint of environmental protection.
- a gelling agent and a gelling aid are used as a gelling agent.
- a gelling agent copper carrageenan, and as a gelling aid, KCl has high gelling performance at low temperatures and excellent hard capsule manufacturability (productivity), and maintains the hardness of the hard capsule film. It is valid.
- High gelling performance at low temperature means that a hard capsule preparation solution is soaked in a mold pin at room temperature and pulled up. It indicates an increase in viscosity and a high tendency to gel. If the hard capsule preparation liquid adhering to the surface of the mold pin is only cured by moisture evaporation, it takes several minutes to several tens of minutes until it completely cures, and during that time, the film substance adhering to the pin causes dripping. Therefore, a uniform capsule film cannot be obtained. When the gelling performance is high, the preparation liquid is cured in a short time, so that a hard capsule with a uniform film thickness can be obtained.
- the hard capsule film which has been almost cured by gelation, can be accelerated by drying in order to evaporate moisture from the film (by increasing the temperature of the air blown during drying, increasing the quantity of air, etc.) Defects such as wrinkles are less likely to occur.
- the high gelation performance leads to a shortening of the drying time, and the production quantity of hard capsules per unit time can be increased.
- the gelling agent has a higher gelling performance when the addition amount is larger, and the capsule film tends to be cracked when it is too much, so that 0.4 parts by mass with respect to 100 parts by mass of hypromellose. It is often added at a degree (Patent Document 1). Moreover, if there are many gelling agents, the amount of gelation aids increases with it, but generally it is often added at 0.6 parts by mass or less with respect to 100 parts by mass of hypromellose (Patent Documents). 1).
- hypromellose having an appropriate degree of substitution has been used. Specifically, when the total amount of hypromellose in the hard capsule is 100%, hypromellose having a substitution degree of 2208 is added so as to be in the range of 20 to 100%. By doing so, it has been reported that such precipitation can be suppressed (Patent Document 2).
- the present inventor has added advantages of a hard capsule mainly composed of a cellulose compound by adding a non-reducing disaccharide or a non-reducing disaccharide alcohol to the hard capsule film.
- the present inventors have found that a remarkable precipitation suppressing effect can be obtained without impairing properties such as mechanical strength (hardness, resistance to cracking) and dissolution properties.
- This invention is completed based on the said knowledge, and contains the following aspects.
- Hard capsule I-1 (1) a cellulose compound, (2) a gelling agent, (3) a gelling aid, and (4) at least one selected from the group consisting of a non-reducing disaccharide and a non-reducing disaccharide alcohol.
- the content of the gelling agent contained in the film is 0.05 to 10% by mass.
- Hard capsule whose content of chemical conversion adjuvant is larger than 0.6 mass% and 5 mass% or less.
- the content of at least one selected from the group consisting of non-reducing disaccharides and non-reducing disaccharide alcohols contained in the film is 1
- the hard capsule according to I-1 which is ⁇ 10% by mass.
- the cellulose compound is a water-soluble cellulose ether in which a hydrogen atom of a hydroxy group of cellulose is substituted with at least one group selected from the group consisting of an alkyl group and a hydroxyalkyl group, I-1 or I-2
- I-4. The hard capsule according to any one of I-1 to I-3, wherein the cellulose compound is hydroxypropylmethylcellulose.
- the gelling aid is potassium chloride.
- I-11. The hard capsule according to any one of I-1 to I-10, further comprising a plasticizer and / or a light-shielding agent.
- Hard capsule preparation solution II-1 (1) a cellulose compound, (2) a gelling agent, (3) a gelling aid, and (4) at least one selected from the group consisting of a non-reducing disaccharide and a non-reducing disaccharide alcohol.
- the content of the gelling agent in the total film components other than the solvent is 0.05 to 10% by mass.
- the hard capsule preparation liquid according to II-1 which has an amount of 1 to 10% by mass.
- the cellulose compound is a water-soluble cellulose ether in which a hydrogen atom of a hydroxy group of cellulose is substituted by at least one group selected from the group consisting of an alkyl group and a hydroxyalkyl group, II-1 or II-2
- the hard capsule preparation liquid described. II-4. The hard capsule preparation liquid according to any one of II-1 to II-3, wherein the cellulose compound is hydroxypropylmethylcellulose. II-5.
- the hard capsule preparation liquid according to any one of II-1 to II-6, wherein the gelling aid is a compound capable of generating sodium ion, potassium ion, or calcium ion in an aqueous solution.
- II-8 The hard capsule preparation liquid according to any one of II-1 to II-7, wherein the gelling aid is potassium chloride.
- III. Preparation method of hard capsule III-1 A method for preparing a hard capsule comprising the following steps: A step of preparing a hard capsule using the hard capsule preparation liquid according to any one of II-1 to II-11. III-2. The method for preparing a hard capsule according to III-1, wherein the method for preparing the hard capsule is a cold gel method. III-3. The method for preparing a hard capsule according to III-1 or III-2, wherein the method for preparing the hard capsule is for suppressing precipitation of a gelling aid.
- the present invention it is possible to provide a hard capsule with improved precipitation of the gelling aid.
- the hard capsule can be expected to have improved gelation performance and further improve the productivity (productivity) of the hard capsule.
- the film set in the autograph is shown.
- (A) is a front view
- (b) is a perspective view.
- a mode that a metal indenter compresses a film top part is shown.
- (A) is before compression
- (b) is after compression.
- (C) shows the relationship between the compression depth and the compression test force.
- the diameter of the indenter is 9 mm.
- Hard capsule The hard capsule of the present invention comprises (1) a cellulose compound, (2) a gelling agent, (3) a gelling aid, and (4) a non-reducing disaccharide and a non-reducing disaccharide alcohol. It consists of a film containing at least one selected from the group.
- the “hard capsule” is a capsule of a type in which a capsule film is first manufactured and the manufactured capsule film is filled with contents. Usually, it consists of a cap part and a body part, and is also called a hard capsule or a two-piece capsule.
- the “hard capsule” of the present invention is a soft capsule produced by filling the contents between two films and bonding the films together, a seamless capsule produced by dropping the contents into a coagulation liquid together with a coating solution,
- microcapsules prepared by incorporating an active ingredient therein by precipitation or emulsification of a substrate are not included.
- Examples of the cellulose compound used in the present invention include water-soluble cellulose ether in which a hydrogen atom of a hydroxy group of cellulose is substituted with at least one group of an alkyl group or a hydroxyalkyl group.
- the “alkyl group” in the above alkyl group or hydroxyalkyl group is a straight or branched lower alkyl group having 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, specifically a methyl group, an ethyl group, Mention may be made of butyl and propyl groups.
- water-soluble cellulose compounds include lower alkyl celluloses such as methyl cellulose; hydroxy lower alkyl celluloses such as hydroxyethyl cellulose and hydroxypropyl cellulose; and hydroxyethyl methyl cellulose, hydroxyethyl ethyl cellulose and hydroxypropyl methyl cellulose (hypromellose or HPMC in the present specification). Hydroxy lower alkyl alkyl cellulose). Of these, hydroxypropyl methylcellulose is an optimal cellulose compound in that it has excellent film moldability and mechanical strength under low moisture. Examples of the cellulose compound applied to the hard capsule include U.S. Pat. No. 2,526,683, U.S. Pat. No. 2,718,667, U.S. Pat. No.
- the hydroxypropylmethylcellulose of the present invention includes hypromellose having the following molecular weight that is approved for use as a food additive in Japan.
- hypromellose having the following molecular weight that is approved for use as a food additive in Japan.
- hydroxypropyl methylcellulose has a ratio (Mw / Mn) of mass average molecular weight (Mw) to number average molecular weight (Mn) usually in the range of 1.5 to 4.
- the mass average molecular weight (Mw) and the number average molecular weight (Mn) in calculating the ratio (Mw / Mn) can both be determined by gel chromatography (size exclusion chromatography).
- the principle and method of gel chromatography are not limited, but for example, the description in the section “Size-ExclusionExChromatography” in the “Chromatography” chapter of “USP30 The United States Pharmacopeia / NF25 The National Formulary” can be referred to.
- hydroxypropyl methylcellulose includes Shin-Etsu Chemical's TC-5 series, SB-4 series (registered trademark), METOLOSE (registered trademark), series, LOTTE (formerly Samsung) AnyCoat-C. (Registered trademark) series and METCEL (registered trademark) series of DOW.
- the hypromellose targeted by the present invention includes those having a viscosity of 2% by weight aqueous solution at 20 ° C. ⁇ 0.1 ° C. in the range of 3 to 50 mPa ⁇ s.
- one kind of hypromellose may be used alone, or two or more kinds of hypromellose may be used in any combination, and each has a “hypromellose viscosity value” of 300 to 5,000, preferably 300 to 5,000. Those in the range of 1500, more preferably in the range of 300 to 960 can be used.
- the “hypromellose viscosity value” is the ratio (mass to the total mass of hypromellose) of the viscosity (mPa ⁇ s) at 20 ° C. ⁇ 0.1 ° C. of a 2% by mass aqueous solution of hypromellose used for the production of capsule film. Part)).
- the “hypromellose viscosity value” is 600 at “6 mPa ⁇ s ⁇ 100 parts by mass”.
- the capsule film is used in combination with 30 parts by mass of hypromellose having a viscosity of 4 mPa ⁇ s in a 2% by weight aqueous solution and 70 parts by mass of hypromellose having 6 mPa ⁇ s, the “hypromellose viscosity value” is “4 mPas”. S ⁇ 30 parts by mass + 6 mPa ⁇ s ⁇ 70 parts by mass ”.
- the lower the molecular weight the lower the viscosity value.
- the solubility of the hard capsule is improved, but on the other hand, it tends to be easily broken.
- gelling agents that can gel hard capsule preparation liquids in combination with gelling aids such as carrageenan, pectin, and gellan gum. These may be used alone or in any combination of two or more.
- carrageenan is an optimal gelling agent because of its high gel strength and excellent gelling properties when used in a small amount in the presence of specific ions.
- three types of carrageenan are known: kappa-carrageenan, iota-carrageenan, and lambda-carrageenan.
- kappa and iota-carrageenan having a relatively high gelling ability can be preferably used, and more preferably, kappa-carrageenan can be used.
- Pectin can be classified into LM pectin and HM pectin depending on the degree of esterification, and gellan gum can be classified into acylated gellan gum (native gellan gum) and deacylated gellan gum according to the presence or absence of acylation. Can also be used without distinction.
- the content of the gelling agent contained in the hard capsule film of the present invention is not limited as long as the hard capsule film can be formed by the cold gel method.
- the content of the gelling agent is 0.05 to 10% by mass, preferably 0.1 to 9.5% by mass, more preferably 0 when the total film component of the hard capsule excluding moisture is 100% by mass. 2 to 9% by mass, and more preferably 0.3 to 8% by mass.
- the gelling aid can be selected according to the type of gelling agent used.
- the gelling aid has an effect of promoting gelation of the gelling agent. Or it may contribute to promotion of gelatinization by raising and lowering the gelation temperature or cloud point temperature which acts directly on a cellulose compound.
- kappa-carrageenan contains one or more of sodium ion, potassium ion, ammonium ion and calcium ion in an aqueous solution. Mention may be made of compounds which can be produced, for example sodium chloride, potassium chloride, potassium phosphate, ammonium chloride, ammonium acetate, calcium chloride.
- a compound that generates sodium ion, potassium ion, or calcium ion in an aqueous solution is preferable.
- calcium ion can be given in water, for example, calcium chloride.
- a gelling adjuvant that can be used in combination when gellan gum is used as a gelling agent a compound that can give one or more of sodium ions, potassium ions, calcium ions, and magnesium ions in water. Examples include sodium chloride, potassium chloride, calcium chloride, and magnesium sulfate.
- citric acid or sodium citrate can be used as an organic acid or a water-soluble salt thereof.
- the content of the gelling aid contained in the hard capsule film of the present invention may be set according to the content of the gelling agent.
- the content of the gelling aid can be at least higher than 0.6% by mass and 10% by mass or less when the total film component of the hard capsule excluding moisture is 100% by mass.
- the lower limit of the content of the gelling auxiliary is preferably 0.65% by mass or more, more preferably 0.7% by mass or more, further preferably 1% by mass or more, and even more preferably 2.6% by mass or more. Can be mentioned.
- As an upper limit of content of a gelatinization adjuvant Preferably it is 5 mass% or less, More preferably, it is 4 mass% or less, More preferably, 3.5 mass% or less can be mentioned.
- the upper limit value and the lower limit value can be appropriately combined.
- carrageenan particularly kappa-carrageenan
- potassium chloride can be preferably used as a gelling aid.
- the “disaccharide” means a saccharide in which two monosaccharides such as sucrose, trehalose, maltose, lactose, turanose, cellobiose and the like are bonded.
- the disaccharide is preferably a non-reducing disaccharide.
- the presence or absence of reducibility depends on the presence or absence of an aldehyde group in the molecule.
- the non-reducing disaccharide is preferably at least one selected from the group consisting of sucrose and trehalose. Both sucrose and trehalose have the chemical formula C 12 H 22 O 11 and are exceptionally non-reducing as disaccharides.
- the “disaccharide alcohol” includes a sugar alcohol that is produced by reducing the carbonyl group of aldose or ketose as a component of a disaccharide.
- the disaccharide alcohol is preferably a non-reducing disaccharide alcohol.
- the non-reducing disaccharide alcohol is preferably at least one selected from the group consisting of maltitol, lactitol, and isomalt.
- the reducibility of saccharides or sugar alcohols can be determined in aqueous solution by the Fering reaction described in the General Test Method of the 16th Japanese Pharmacopoeia and 4.03 Digestion Test Method.
- the reducing properties of saccharides or sugar alcohols are derived from the reducing properties of aldehyde groups contained in the chemical structure that can be taken in an aqueous solution.
- the effect brought about by using hypromellose having a substitution degree of 2208 described in Patent Document 2 is exhibited by at least one carbohydrate selected from the group consisting of non-reducing disaccharides and non-reducing disaccharide alcohols. Although it is less than the precipitation inhibitory effect of a gelling auxiliary agent, it is also possible to obtain a more remarkable gelling auxiliary agent precipitation inhibitory effect by using both together.
- the content of at least one selected from the group consisting of non-reducing disaccharides and non-reducing disaccharide alcohols contained in the hard capsule film is not limited as long as precipitation of the gelling aid can be suppressed.
- the total amount of the carbohydrates used is within the following content range.
- the content of at least one selected from the group consisting of a non-reducing disaccharide and a non-reducing disaccharide alcohol is 1% by mass to 10% when the total film component of the hard capsule excluding moisture is 100% by mass. It can be made into the range of the mass%.
- the lower limit of the content is preferably 2% by mass or more, more preferably 3% by mass or more.
- the upper limit of the content is preferably 9% by mass or less, more preferably 8% by mass or less.
- the film of the hard capsule of the present invention contains a plasticizer, a lubricant, a metal sequestering agent, a colorant, a light-shielding agent, residual moisture (also simply referred to as moisture) and the like as a film component of the hard capsule as necessary. Also good.
- the plasticizer is not particularly limited as long as it can be used in a pharmaceutical or food composition.
- the range of 15 mass% or less can be mentioned normally, when the film component sum total of the hard capsule except a water
- it is 13 mass% or less, More preferably, it is 11 mass% or less, More preferably, it can add in 8 mass% or less.
- ethylenediaminetetraacetic acid ethylenediaminetetraacetic acid, acetic acid, boric acid, citric acid, gluconic acid, lactic acid, phosphoric acid, tartaric acid, or salts thereof, metaphosphate, dihydroxyethylglycine, lecithin, ⁇ -cyclodextrin, or these Combinations can be mentioned.
- the lubricant is not particularly limited as long as it can be used for pharmaceuticals or food compositions.
- examples include calcium stearate, magnesium stearate, sodium stearyl fumarate, carnauba wax, starch, sucrose fatty acid ester, light anhydrous silicic acid, macrogol, talc, hydrogenated vegetable oil and the like.
- the colorant and the light-shielding agent are not particularly limited as long as they can be used for pharmaceuticals or food compositions.
- the colorant include asen yak tannin powder, turmeric extract, methyl rosaniline, yellow iron oxide, yellow ferric oxide, Opaspray K-1-2904, orange essence, brown iron oxide, carbon black, caramel, carmine, carotene solution , ⁇ -carotene, Photosensitive element 201, Licorice extract, Gold leaf, Kumazasa extract, Black iron oxide, Light anhydrous silicic acid, Kecket, Zinc oxide, Titanium oxide, Iron sesquioxide, Disazo yellow, Edible blue No. 1 and its aluminum lake Food Blue No. 2 and its aluminum lake, Food Yellow No.
- Examples of the light-shielding agent include titanium oxide, iron sesquioxide, yellow iron sesquioxide, black iron oxide, edible blue No. 1 aluminum rake, edible blue No. 2 aluminum rake, edible yellow No. 4 aluminum rake, edible yellow No. 5 aluminum rake, Edible Green No. 3 Aluminum Lake, Edible Red No. 2 Aluminum Lake, Edible Red No. 3 Aluminum Lake, Edible Red No. 102 Aluminum Lake, Edible Red No. 104 Aluminum Lake, Edible Red No. 105 Aluminum Lake, Edible Red No. 106 Aluminum Lake, Edible Red A red No. 40 aluminum lake can be mentioned.
- titanium oxide may be added as a light-shielding agent in order to prevent deterioration of the contents due to ultraviolet rays or the like.
- the capsule film after preparation usually contains several percent of residual moisture.
- the capsule after molding is dried in the range of 30 ° C. to 100 ° C., it settles to a predetermined saturated residual moisture value corresponding to the solid content of the capsule and their composition.
- the time until the saturated moisture value is settled is shorter when the drying treatment is performed at a high temperature.
- Residual moisture changes almost reversibly, depending on the environmental humidity during storage of the capsule. That is, the saturated water value after sufficiently drying at 30 to 100 ° C. converges to a constant value when stored for several days at a constant temperature and relative humidity.
- the saturated moisture value after storage for several days at a relative humidity of 43% at room temperature is used.
- the saturated moisture value of residual moisture at room temperature and 43% relative humidity is preferably at least 1% or more, more preferably 2% or more, and more preferably 3% or more with respect to the total mass of the capsule film. Further preferred. On the other hand, if there is too much residual moisture, it may react with the drug filled inside when stored for a long period of time, so it is preferably 8% or less, and more preferably 6% or less.
- the residual saturated moisture content can be expressed by the moisture content at the loss on drying, and the measurement can be performed as follows. ⁇ Method for measuring moisture content in capsule film by weight loss method>
- a sample hard capsule or film
- a saturated aqueous solution of potassium carbonate is added and kept in a constant humidity state, and seal and condition at 25 ° C. for 1 week.
- an atmosphere with a relative humidity of about 43% can be created.
- the sample is then heat-dried at 105 ° C. for 2 hours, and the mass (dry mass) of the sample is measured again. From the difference between the mass before drying (wet mass) and the mass after drying (dry mass), the proportion of moisture content (water content) that decreases by heating and drying at 105 ° C. for 2 hours is calculated according to the following formula.
- the capsule preparation liquid for preparing the hard capsule of this embodiment comprises a solvent and the above-mentioned 1. Including the film component described in.
- the solvent is not particularly limited as long as it is an aqueous solvent.
- the solvent is preferably water, ethanol, and a mixture thereof, more preferably water.
- the content of the film component contained in the hard capsule preparation liquid is not limited as long as the hard capsule film can be formed by the cold gel method.
- the gelling agent content is 0.05 to 10% by mass when the total film component other than the solvent in the preparation solution is 100% by mass. Preferably 0.1 to 9.5% by mass, more preferably 0.2 to 9% by mass, and still more preferably 0.3 to 8% by mass.
- the content of the gelling aid may be set according to the content of the gelling agent.
- the content of the gelling auxiliary in the total film component other than the solvent is at least higher than 0.6% by mass and 10% by mass.
- the following ranges can be adopted.
- the lower limit of the content of the gelling auxiliary is preferably 0.65% by mass or more, more preferably 0.7% by mass or more, further preferably 1% by mass or more, and even more preferably 2.6% by mass or more.
- an upper limit of content of a gelatinization adjuvant Preferably it is 5 mass% or less, More preferably, it is 4 mass% or less, More preferably, 3.5 mass% or less can be mentioned.
- the upper limit value and the lower limit value can be appropriately combined.
- the content of at least one selected from the group consisting of non-reducing disaccharides and non-reducing disaccharide alcohols contained in the hard capsule preparation liquid is not limited as long as precipitation of the gelling aid can be suppressed.
- the content of at least one selected from the group consisting of a non-reducing disaccharide and a non-reducing disaccharide alcohol is a content other than the solvent when the total film component other than the solvent of the preparation solution is 100% by mass.
- the total amount of the film components may be in the range of 1% by mass to 10% by mass.
- the lower limit of the content is preferably 2% by mass or more, more preferably 3% by mass or more.
- the upper limit of the content is preferably 9% by mass or less, more preferably 8% by mass or less.
- the total amount of the carbohydrates used is within the above range. To.
- the final concentration means the concentration in the final solution, that is, the concentration in the solution used when actually preparing the capsule.
- the concentration of the total amount of the coating components other than the solvent in the preparation solution in the total adjustment solution is 10 to 30% by mass, preferably 12 to 25% by mass, more preferably 14 to 20% by mass, with the final concentration range. Can be mentioned.
- the range of 10 to 30% by mass, preferably 12 to 25% by mass, more preferably 14 to 20% by mass can be mentioned as the final concentration range.
- the gelling agent may have a final concentration range of 0.005 to 0.5% by mass, preferably 0.01 to 0.45% by mass, more preferably 0.015 to 0.4% by mass. be able to.
- the concentration of the gelling aid can be in the range of 0.06 to 3% by mass as the final concentration range.
- the lower limit of the content of the gelling auxiliary is preferably 0.07% by mass or more, more preferably 0.1% by mass or more, and the upper limit of the content of the gelling auxiliary is preferably 1.8. It is at most mass%, more preferably at most 1.5 mass%, even more preferably at most 1.2 mass%.
- the upper limit value and the lower limit value can be appropriately combined.
- At least one selected from the group consisting of non-reducing disaccharides and non-reducing disaccharide alcohols may have a final concentration range of 0.03 to 2.5% by mass.
- the lower limit of the content is preferably 0.1% by mass or more, more preferably 0.2% by mass or more.
- the upper limit of the content is preferably 3.5% by mass or less, more preferably 3% by mass or less, and still more preferably 2.5% by mass or less.
- the content can be appropriately set within a range of 0.5% by mass or less.
- the preparation method of the capsule preparation liquid is not particularly limited.
- a gelling agent, a gelling aid, a non-reducing disaccharide and a non-reducing disaccharide alcohol are dispersed and dissolved, and then the water-soluble cellulose compound is dissolved.
- the desired immersion liquid temperature usually 35-60 ° C, more preferably 40-60 ° C
- a uniform capsule preparation liquid immersion liquid
- a gelling agent and a gelling auxiliary agent are further added and dissolved to prepare a uniform capsule preparation liquid (immersion liquid) and adjust the temperature of the desired immersion liquid without limitation.
- the viscosity of the capsule preparation liquid is not particularly limited.
- the viscosity of the capsule preparation liquid is a temperature (30 to 80 ° C., preferably 40 to 60 ° C.) used at the time of immersion of the capsule molding pin (30 to 80 ° C., preferably 40 to 60 ° C.). It can be prepared to be 100 to 20000 mPa ⁇ s, preferably 300 to 10000 mPa ⁇ s.
- the solvent content of the capsule preparation liquid is 60 to 90% by mass, preferably 70 to 85% by mass.
- the viscosity specified in the present invention is a B-type rotational viscometer, when the viscosity is less than 500 mPa ⁇ s, rotor number 2, when the viscosity is 500 mPa ⁇ s or more and less than 2000 mPa ⁇ s, rotor number 3 and when the viscosity is 2000 mPa ⁇ s or more Means the viscosity when measured using a rotor number 4 under the conditions of a predetermined temperature, a rotational speed of 60 rpm, and a measurement time of 1 minute.
- the concentration of each component contained in the capsule preparation liquid will be described later.
- the method for preparing (molding) the hard capsule is not particularly limited as long as it includes the step of preparing the capsule using the capsule preparation liquid according to the present invention.
- Hard capsules generally have a desired capsule shape and thickness by immersing a mold pin that serves as a mold for the capsule in an aqueous solution in which the capsule film component is dissolved, and curing and drying the film that adheres when the capsule is pulled up.
- the method for preparing a hard capsule is a step of preparing a capsule preparation solution by the above method or purchasing a capsule preparation solution, and after immersing a capsule molding pin in the capsule preparation solution. Then, it is pulled up, and the solution adhering to the capsule molding pin is gelled, and then the gelled film is dried at 20 to 80 ° C. to prepare it.
- the hard capsule used in the present invention can be produced through the following molding process.
- a capsule preparation liquid containing at least one selected from the group consisting of a cellulose compound, a gelling agent, a gelling aid, a non-reducing disaccharide, and a non-reducing disaccharide alcohol.
- the step of immersing the capsule molding pin (immersion step)
- (2) A step of pulling up the capsule molding pin from the capsule preparation solution (immersion solution) to gel the capsule preparation solution adhering to the outer surface of the pin (gelation step)
- a step of detaching the dried capsule film (film) from the capsule molding pin detachment step).
- the gelled capsule film (gelated film) is heated at 30 to 150 ° C. Process (heating process).
- the said gelatinizer gelatinizes at the temperature of about 40 degrees C or less
- a capsule manufacturing machine The ambient temperature is usually set to 35 ° C. or lower, preferably 30 ° C. or lower, preferably room temperature
- the gel preparation step (2) is allowed to cool the capsule preparation solution attached to the outer surface of the capsule molding pin.
- the capsule preparation liquid (immersion liquid) adjusted to a constant temperature of 35 to 60 ° C., preferably 40 to 60 ° C. is preferably 10 to 30 ° C., preferably according to the liquid temperature.
- the drying step (3) can be performed at room temperature. Usually, it is performed by blowing air at room temperature.
- the detachment step (4) is performed by extracting the dry capsule film formed on the surface of the capsule molding pin from the capsule molding pin.
- the heating step (5) which is an optional step, can be performed after the gelation step (2), that is, after the capsule preparation liquid is gelled (solidified).
- the stage of the heat treatment may be any stage as long as it is after the gelation step (2), or before or after the drying step (3), or may be performed simultaneously with heating and drying. Further, it may be after the desorption step (4).
- the gelation step (2) the gelled capsule film is subjected to a drying step at room temperature, and heat treatment is performed after drying or in a semi-drying stage.
- the heat treatment can be usually performed by blowing air at 20 to 150 ° C.
- the heating temperature is not particularly limited as long as it is in the range of 20 to 150 ° C, but is preferably in the range of 25 to 80 ° C, more preferably in the range of 30 to 50 ° C.
- the capsule film thus prepared can be provided as a hard capsule in a state where the body part and the cap part are fitted together or not fitted after being cut and adjusted to a predetermined length.
- the film thickness of the hard capsule is usually in the range of 50 to 200 ⁇ m.
- the thickness of the side wall portion of the capsule is usually 70 to 150 ⁇ m, more preferably 80 to 120 ⁇ m in the capsules currently on the market.
- the size of the hard capsule there are 00, 0, 1, 2, 2, 3, 4, 5, etc., but any size of hard capsule can be used in the present invention.
- the preparation method of the hard capsule preparation method is also a method for suppressing the precipitation of the gelling aid in the hard capsule after preparation.
- the method of filling the content into the hard capsule and the method of filling the content into the use hard capsule are not particularly limited.
- the filling of the contents into the hard capsule is performed by a known capsule filling machine described in JP 2007-144014 A, JP 2000-226097 A, etc., for example, a fully automatic capsule filling machine (model name: LIQFILsuper80 / 150, Qualicaps), capsule filling / sealing machine (model name: LIQFILsuperFS, Qualicaps) and the like.
- Japanese Patent Application Laid-Open No. 2005-2005 discloses that a more reliable strict sealing is performed to prevent malicious opening and contamination, and to prevent leakage of liquid filling.
- the fitting portion may be sealed with a band seal described in Japanese Patent Application No. 18747412 or Japanese Patent Application Laid-Open No. 2009-504630.
- the use of the hard capsule of the present invention is not particularly limited. Preferable examples include oral preparations and inhalation preparations.
- Oral preparations should dissolve quickly in the stomach or intestine.
- an enteric capsule in which a coating of an enteric base material is added to the surface of the capsule film can also be used.
- An enteric capsule can also be formed by using all or part of the enteric base material in the capsule film itself.
- the enteric capsule is not particularly limited as long as it has the property of being dissolved in the intestine but not in the stomach. For example, it is almost dissolved in a dilute hydrochloric acid solution at pH 1.2 (Japanese Pharmacopoeia 1st liquid) for 2 hours or more. Without dissolving in a buffer solution of pH 6.8 (Japanese Pharmacopoeia 2nd liquid).
- the drug can be released gradually from the hard capsule.
- a sustained-release film may be coated on the capsule film surface.
- the inhalation preparation is sealed in a hard capsule with a single dose of drug and attached to a device as disclosed in US Pat. No. 4069819, US Pat. No. 4210140, US Pat. No. 7,669,596, US Pat. To do. By punching with a small pin or breaking the capsule, the drug inside can be sucked at an appropriate flow rate.
- the content of the hard capsule is not particularly limited, and examples thereof include human or animal drugs, quasi drugs, cosmetics, and foods without limitation.
- the shape of the contents is not particularly limited. For example, it may be a liquid, gel, powder, granule, tablet, pellet, or a mixed form (hybrid) thereof.
- tonics for example, nourishing tonics, antipyretic analgesics, antipsychotics, anxiolytics, antidepressants, hypnotic sedatives, antispasmodics, central nervous system drugs, brain Metabolic improver, cerebral circulation modifier, antiepileptic agent, sympathomimetic agent, gastrointestinal agent, antacid, anti-ulcer agent, antitussive expectorant, antiemetic agent, respiratory accelerator, bronchodilator, allergic agent, dental oral cavity Drugs, antihistamines, cardiotonic agents, arrhythmic agents, diuretics, antihypertensive agents, vasoconstrictors, coronary vasodilators, peripheral vasodilators, antihyperlipidemic agents, antibacterial agents, antibiotics, chemotherapeutic agents 1 or 2 selected from antidiabetic, osteoporosis, antirheumatic, skeletal muscle relaxant, antispasmodic, hormone, al
- docosahexaenoic acid for example, docosahexaenoic acid, eicosapentaenoic acid, ⁇ -lipoic acid, royal jelly, isoflavone, agaricus, acerola, aloe, aloe vera, turmeric, ercarnitine, oligosaccharide, cacao, catechin, capsaicin, chamomile, agar, Tocopherol, linolenic acid, xylitol, chitosan, GABA, citric acid, chlorella, glucosamine, ginseng, coenzyme Q10, brown sugar, collagen, chondroitin, sorghum, squalene, stevia, ceramide, taurine, saponin, lecithin, dextrin, dodomi, niacin, Natto bacteria, bittern, lactic acid bacteria, saw palmetto, honey, hatomugi, plum extract, pantothenic acid
- the hardness of a hard capsule can be evaluated, for example, by preparing a capsule preparation solution, producing a film using a cast film applicator, and evaluating the hardness of the film.
- the prepared film was cut to a size of 10 mm ⁇ 50 mm with a film thickness of 100 ⁇ m ⁇ 5 ⁇ m, and then subjected to humidity control under conditions of 25 ° C. and a relative humidity of 43% (potassium carbonate saturated aqueous solution) for one week, for example. Then, the hardness can be evaluated by a compression test.
- Hardness was evaluated by setting the above-mentioned humidity-controlled film in an arch shape on an autograph (eg, Shimadzu AGS-J) and setting it in a holder (as shown in FIG. 1a, the width of the set film was 2 cm). The height of the set film was 2 cm), and the top of the film was compressed 5 to 8 mm with a metal indenter (FIG. 2b), and the peak of the compression test force of the film (FIG. 2c) was determined. Compare the value with the compression test force value of a standard product (a film made by increasing the amount of the same amount of base as the sugar content). To do.
- the compression speed is, for example, 50 mm / min, and the diameter of the metal indenter is, for example, 9 mm (FIG. 2b).
- the hardness can be evaluated as “no change in hardness”, for example, when the compression test force of a standard product that does not contain the following sugar is 100. Furthermore, less than 90 can be evaluated as “weakening”.
- the measured value varies depending on the thickness of the capsule film, particularly the film thickness of the capsule body into which the metal indenter is pushed.
- the precipitation of the gelling aid depending on the composition of each component of the hard capsule and the evaluation of the hardness are films having the same component composition as the component composition of the hard capsule instead of the hard capsule formed by the dipping method.
- the film component concentration of the hard capsule excluding the solvent in the capsule preparation liquid was appropriately adjusted so as to obtain a cast film having a desired film thickness in the range of 10 to 25% by mass.
- Table 2 and Table 3 show the content of each component when the total film component of the capsule excluding moisture is 100% by mass.
- Film formation method Cast film is a uniform film of 100 ⁇ m by placing a metallic applicator on a glass surface or PET film kept at room temperature, pouring a capsule preparation solution at 50 ° C to 60 ° C and moving it at a constant speed. It was created. In order to obtain a uniform film thickness of 100 ⁇ m, applicators with gaps of 0.4 mm to 1.5 mm were properly used. Thereafter, drying was performed at room temperature to 30 ° C. for about 10 hours.
- Hardness is evaluated by setting the above-mentioned humidity-controlled film in an arch shape on an autograph (Shimadzu AGS-J) and setting it in a holder (as shown in Fig. 1a, the width of the set film is 2 cm)
- the height of the set film was 2 cm, and the top of the film was compressed 5 to 8 mm with a metal indenter (Fig. 2b), and the peak of the compression test force of the film (Fig. 2c) was obtained.
- the compression speed is, for example, 50 mm / min, and the diameter of the metal indenter is 9 mm (FIG. 2b).
- Compressive stress of each film measured for the compression test of a standard product (a film prepared by increasing the amount of the same amount of base as the content of the hardness improver, except the components other than the hardness improver are the same components as the test product) Hardness was evaluated by comparison with force values. The relative compressive stress was evaluated when the compression test force of the standard product was 100.
- Tables 2 and 3 show the compositions of the films prepared and the evaluation results of the gelling aid precipitation suppression effect and hardness. “ ⁇ ” in Tables 2 and 3 indicates that no precipitation of the gelation aid was observed even after 1 week from the film preparation.
- the gelation aid is a film having a content comparable to that of a conventional hard capsule film of potassium chloride.
- no precipitation of the gelling aid was observed, so that it was shown that there was no problem of precipitation of the gelling aid after preparation of the capsule if the content of the conventional gelling aid was included.
- Reference Example 2 of Table 2 when the content of potassium chloride as a gelling aid was increased to 0.8% by mass, potassium chloride was precipitated. This tendency was the same even in Reference Example 3 in Table 3 in which sodium chloride was added at 0.8% by mass as a gelling aid, and precipitation of sodium chloride was observed on the fifth day after film preparation.
- non-reducing disaccharides or non-reducing disaccharide alcohols were added, there was almost no decrease in film hardness, but with the addition of monosaccharide sugar alcohols xylitol or erythritol. A slight decrease in the hardness of the film was observed. From this, it was considered that non-reducing disaccharides and non-reducing disaccharide alcohols are also effective in maintaining the appropriate hardness of the hard capsules and suppressing the precipitation of the gelling aid. .
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Abstract
Description
本発明は、当該知見に基づいて完成されたものであり、以下の態様を含む。
I-1.(1)セルロース化合物、(2)ゲル化剤、(3)ゲル化補助剤、並びに(4)還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種、を含む皮膜からなる硬質カプセルであって、水分を除く硬質カプセルの皮膜成分合計を100質量%とした場合に、皮膜に含まれるゲル化剤の含有量が0.05~10質量%であり、ゲル化補助剤の含有量が0.6質量%より大きくかつ5質量%以下である、硬質カプセル。
I-2.水分を除く硬質カプセルの皮膜成分合計を100質量%とした場合に、皮膜に含まれる還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種の含有量が1~10質量%である、I-1に記載の硬質カプセル。
I-3.セルロース化合物が、アルキル基、及びヒドロキシアルキル基からなる群から選択される少なくとも1つの基によってセルロースのヒドロキシ基の水素原子が置換された水溶性のセルロースエーテルである、I-1又はI-2に記載の硬質カプセル。
I-4.セルロース化合物が、ヒドロキシプロピルメチルセルロースである、I-1~I-3のいずれか一項に記載の硬質カプセル。
I-5.ゲル化剤が、カラギーナン、ペクチン、及びジェランガムからなる群から選択される少なくとも一種である、I-1~I-4のいずれか一項に記載の硬質カプセル。
I-6.ゲル化剤が、カッパ-カラギーナンである、I-1~I-5のいずれか一項に記載の硬質カプセル。
I-7.ゲル化補助剤が、水溶液中で、ナトリウムイオン、カリウムイオン、又はカルシウムイオンを生じることができる化合物である、I-1~I-6のいずれか一項に記載の硬質カプセル。
I-8.ゲル化補助剤が、塩化カリウムである、I-1~I-7のいずれか一項に記載の硬質カプセル。
I-9.還元性のない二糖類が、トレハロース、及びスクロースからなる群から選択される少なくとも一種である、I-1~I-8のいずれか一項に記載の硬質カプセル。
I-10.還元性のない二糖アルコールが、マルチトール、ラクチトール、及び、イソマルトからなる群から選択される少なくとも一種である、I-1~I-9のいずれか一項に記載の硬質カプセル。
I-11.さらに、可塑剤、及び/又は遮光剤を含む、I-1~I-10のいずれか一項に記載の硬質カプセル。
II-1.(1)セルロース化合物、(2)ゲル化剤、(3)ゲル化補助剤、並びに(4)還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種、を含む硬質カプセルの調製液であって、調製液の溶媒以外の成分合計を100質量%とした場合に、溶媒以外の皮膜成分合計中のゲル化剤の含有量が0.05~10質量%であり、ゲル化補助剤の含有量が0.6質量%より大きくかつ5質量%以下である、硬質カプセル調製液。
II-2.調製液の溶媒以外の成分合計を100質量%とした場合に、溶媒以外の皮膜成分合計中の還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種の含有量が1~10質量%である、II-1に記載の硬質カプセル調製液。
II-3.セルロース化合物が、アルキル基、及びヒドロキシアルキル基からなる群から選択される少なくとも1つの基によってセルロースのヒドロキシ基の水素原子が置換された水溶性のセルロースエーテルである、II-1又はII-2に記載の硬質カプセル調製液。
II-4.セルロース化合物が、ヒドロキシプロピルメチルセルロースである、II-1~II-3のいずれか一項に記載の硬質カプセル調製液。
II-5.ゲル化剤が、カラギーナン、ペクチン、及びジェランガムからなる群から選択される少なくとも一種である、II-1~II-4のいずれか一項に記載の硬質カプセル調製液。
II-6.ゲル化剤が、カッパ-カラギーナンである、II-1~II-5のいずれか一項に記載の硬質カプセル調製液。
II-7.ゲル化補助剤が、水溶液中で、ナトリウムイオン、カリウムイオン、又はカルシウムイオンを生じることができる化合物である、II-1~II-6のいずれか一項に記載の硬質カプセル調製液。
II-8.ゲル化補助剤が、塩化カリウムである、II-1~II-7のいずれか一項に記載の硬質カプセル調製液。
II-9.還元性のない二糖類が、トレハロース、及びスクロースからなる群から選択される少なくとも一種である、II-1~II-8のいずれか一項に記載の硬質カプセル調製液。
II-10.還元性のない二糖アルコールが、マルチトール、ラクチトール、及びイソマルトからなる群から選択される少なくとも一種である、I-1~I-9のいずれか一項に記載の硬質カプセル調整液。
II-11.さらに、可塑剤、及び/又は遮光剤を含む、II-1~II-10のいずれか一項に記載の硬質カプセル調製液。
III-1.下記工程を含む硬質カプセルの調製方法:
II-1~II-11のいずれか一項に記載の硬質カプセル調製液を使用して、硬質カプセルを調製する工程。
III-2.前記硬質カプセルの調製方法が、冷ゲル法であるIII-1に記載の硬質カプセルの調製方法。
III-3.前記硬質カプセルの調製方法が、ゲル化補助剤の析出抑制するためのものである、III-1又はIII-2に記載の硬質カプセルの調製方法。
本発明の硬質カプセルは、(1)セルロース化合物、(2)ゲル化剤、(3)ゲル化補助剤、並びに(4)還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種を含む皮膜からなる。
本発明で使用されるヒドロキシプロピルメチルセルロースには、日本薬局方で定められる表1に規定されるヒプロメロースが含まれる。
<分子量>
非置換構造単位:162.14
置換構造単位:約180(置換度1.19)、約210(置換度2.37)
重合体:約13,000(n=約70)~約200,000(n=約1000)。
また本発明が対象とするヒプロメロースには、その2質量%水溶液の20℃±0.1℃における粘度が3~50mPa・sの範囲にあるものが含まれる。
糖類もしくは糖アルコール類の還元性は、水溶液中において、第16日本薬局方の一般試験法、4.03消化力試験法にも記載されているフェーリング反応によって判定できる。ただし、糖類もしくは糖アルコール類の還元性は、水溶液中においてとりうるその化学構造中に含まれるアルデヒド基の還元性に由来する。
医薬用硬質カプセルにおいては、内容物の紫外線等による劣化を防止するため、遮光剤として酸化チタンを添加する場合がある。
<乾燥減量法によるカプセル皮膜中の含水率の測定方法>
本態様の硬質カプセルを調製するためのカプセル調製液は、溶媒と上記1.で述べた皮膜成分を含む。溶媒は、水性溶媒である限り特に制限されない。溶媒として好ましくは水、エタノール、及びこれらの混合物、より好ましくは水である。
滑沢剤、着色剤、遮光剤、金属封鎖剤、香料等を含む場合、その含有量は、それぞれ0.5質量%以下の範囲で適宜設定することができる。
カプセル調製液(浸漬液)の調製方法は、特に制限されない。例えば約70~90℃程度に加熱した精製水に、ゲル化剤やゲル化補助剤、還元性のない二糖類及び還元性のない二糖アルコールを分散、溶解を溶解した後、水溶性セルロース化合物分散させて、これを所望の浸漬液の温度(通常35~60℃、より好ましくは40~60℃)まで冷却して水溶性セルロース化合物を溶解させて均一なカプセル調製液(浸漬液)を調製する方法;ならびに水溶性セルロース化合物を約70~90℃程度の熱水に分散し、これをいったん冷却して水溶性セルロース化合物を溶解させた後に、再び加温して30~60℃程度に調製して、ゲル化剤及びゲル化補助剤をさらに添加し溶解し、均一なカプセル調製液(浸漬液)を調製して、所望の浸漬液の温度に調整する方法、などを制限なく使用することができる。カプセル調製液の粘度は、特に制限されない。好ましくは、カプセル調製液の粘度は、カプセル成型用ピンの浸漬時に採用される温度(浸漬液の温度)条件下(30~80℃、好ましくは40~60℃)で、カプセル調製液の粘度が100~20000mPa・s、好ましくは300~10000mPa・sとなるように調製することができる。通常、カプセル調製液の溶媒含有量として60~90質量%、好ましくは70~85質量%を挙げることができる。
カプセル調製液に含まれる各成分の濃度は、後述する。
より具体的には、本発明で用いる硬質カプセルは下記の成型工程を経て製造することができる。
(2)カプセル調製液(浸漬液)からカプセル成型用ピンを引き上げて、当該ピンの外表面に付着したカプセル調製液をゲル化する工程(ゲル化工程)、
(3)カプセル成型用ピンの外表面に被覆形成されたゲル化カプセルフィルム(ゲル化皮膜)を乾燥する工程(乾燥工程)、
(4)乾燥したカプセルフィルム(皮膜)をカプセル成型用ピンから脱離する工程(脱離工程)。
なお、必要に応じて上記(4)の工程後に下記の加熱工程を行なってもよい。
(5)上記のゲル化工程(2)後の、乾燥工程(3)の前後若しくは同時に、または脱離工程(4)後に、ゲル化カプセルフィルム(ゲル化皮膜)を30~150℃で加熱処理する工程(加熱工程)。
硬質カプセルに内容物を充填する方法は、特に制限されない。
内容物の硬質カプセル内への充填は、特開2007-144014号公報、特開2000-226097号公報等に記載の公知のカプセル充填機、例えば全自動カプセル充填機(型式名:LIQFILsuper80/150、クオリカプス社製)、カプセル充填・シール機(型式名:LIQFILsuperFS、クオリカプス社製)等を用いて実施することができる。
本発明の硬質カプセルの用途は、特に制限されない。好ましくは、経口製剤、及び吸引製剤等を挙げることができる。
内容物の形状も特に問わない。例えば、液状物、ゲル状物、粉末状、顆粒状、錠剤状、ペレット状、またこれらの混合形状(ハイブリッド状)であってもよい。
硬質カプセルの皮膜におけるゲル化補助剤の析出の評価は、例えば上記カプセル調製液を調製後、キャストフィルムアプリケーターを使用してフィルムを作製し、そのフィルムにおけるゲル化補助剤の析出を評価することによって行うことができる。フィルムの厚さが100μm±5μmとなるようフィルムを作製し、作製されたフィルムを、10mm×50mmの大きさにカットした後、25℃、相対湿度60%(硝酸アンモニウム飽和水溶液の存在下)の条件下に、1週間おき、その後ゲル化補助剤の析出を目視による白濁の有無で評価することができる。
ゲル化補助剤の析出は、目視で白濁が認められなかった場合、「析出なし」と評価することができる。
硬質カプセルの硬度の評価は、例えば上記カプセル調製液を作成後、キャストフィルムアプリケーターを使用してフィルムを作製し、そのフィルムの硬度を評価することによって行うことができる。作製されたフィルムを、フィルムの厚さは100μm±5μmとし、10mm×50mmの大きさにカットした後、25℃、相対湿度43%(炭酸カリウム飽和水溶液)の条件の調湿下に例えば一週間おき、その後硬度を圧縮試験にて評価することができる。
硬質カプセル皮膜におけるゲル化補助剤の析出、及び硬質カプセルの硬度を評価する場合、カプセル皮膜の厚み、特に金属圧子を押し込むカプセル胴部の皮膜厚みによって測定値が変化する。特に硬度の評価は、被験皮膜の厚みをそろえて比較することが重要である。このため、硬質カプセルの各成分組成に依存するゲル化補助剤の析出、及び硬度の評価は、ディッピング法によって成形された硬質カプセルのかわりに、硬質カプセルの各成分組成と同一成分組成であるフィルムを硬質カプセル皮膜の成分組成毎にキャスト法により作成し、当該フィルムを用いて行った。以下では、ディッピング法によって成形された硬質カプセルのかわりに、硬質カプセルの各成分組成と同一成分組成であるフィルムを作成して評価を行っているが、当該フィルムは、厚みの均一性に優れ評価の再現性に優れており、かつカプセル皮膜としてのゲル化補助剤の析出抑制効果、及び硬度をよく反映するものである。
以下の実施例においては、表2に示すように基剤となるHPMCとして、置換度2910のうちの2種、又は3種類の分子量を混合したものを用いた。なお、ゲル化補助剤の析出性、及びカプセルフィルムの硬度はヒプロメロース粘度値には依存しないことを別途確認している。実験に用いた置換度2910のヒプロメロースは、Samsung(現Lotte)精密化学社製、AnyCoat-Cシリーズの粘度グレード4及び6であるAW4及びAW6、信越化学社製、TC-5シリーズの粘度グレード6であるTC-5Rを適宜用いた。同等の粘度グレード値(粘度値)においては、ヒプロメロースの製造メーカーの違いによるゲル化補助剤の析出性、及び硬度への影響は見られなかった。
続いてスリーワンモーターで攪拌しながら50℃~60℃まで降温させスリーワンモーターで1時間攪拌しゼリー状のカプセル調製液を調製した。
キャストフィルムは、室温に保持したガラス面上またはペットフィルム上に金属性のアプリケーターを設置し、50℃~60℃のカプセル調製液を流しこみ一定速度で移動させ100μmの均一なフィルムを作成した。均一な100μmの膜厚を得るため、ギャップが0.4 mm~1.5 mmのアプリケーターを適宜使い分けた。その後、室温~30℃で10時間程度の乾燥を行った。
作製されたフィルムを、10mm×50mmの大きさにカットした後、25℃、相対湿度60%(硝酸アンモニウム飽和水溶液の存在下)の条件下に、1週間おき、その後ゲル化補助剤の析出を目視による白濁の有無で評価した。
ゲル化補助剤の析出は、目視で白濁が認められなかった場合、「析出なし」と評価することができる。
調製したフィルムは、10 mm × 50 mmの短冊状にカットした後、25℃、相対湿度43%(炭酸カリウム飽和水溶液)の条件の調湿下に一週間おき、調湿した後硬度を圧縮試験にて評価した。
表2及び表3に作成したフィルムの組成と、ゲル化補助剤の析出抑制効果及び硬度の評価結果を示した。表2及び表3の「○」は、フィルム調製後1週間経過後もゲル化補助剤の析出が認められなかったことを示す。表2の参考例1は、ゲル化補助剤が塩化カリウム従来の硬質カプセル皮膜と同程度の含有量のフィルムである。参考例1ではゲル化補助剤の析出は認められないことから、従来のゲル化補助剤の含有量であれば、カプセル調製後にゲル化補助剤が析出するという課題がないことが示された。また、表2の参考例2に示すように、ゲル化補助剤である塩化カリウムの含有量を0.8質量%に増加させると、塩化カリウムが析出した。この傾向は、ゲル化補助剤として塩化ナトリウムを0.8質量%で添加した表3の参考例3であっても同様であり、フィルム調製後5日目で塩化ナトリウムの析出が認められた。
Claims (24)
- (1)セルロース化合物、(2)ゲル化剤、(3)ゲル化補助剤、並びに(4)還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種、を含む皮膜からなる硬質カプセルであって、水分を除く硬質カプセルの皮膜成分合計を100質量%とした場合に、皮膜に含まれるゲル化剤の含有量が0.05~10質量%であり、ゲル化補助剤の含有量が0.6質量%より大きくかつ5質量%以下である、硬質カプセル。
- 水分を除く硬質カプセルの皮膜成分合計を100質量%とした場合に、皮膜に含まれる還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種の含有量が1~10質量%である、請求項1に記載の硬質カプセル。
- セルロース化合物が、アルキル基、及びヒドロキシアルキル基からなる群から選択される少なくとも1つの基によってセルロースのヒドロキシ基の水素原子が置換された水溶性のセルロースエーテルである、請求項1又は請求項2に記載の硬質カプセル。
- セルロース化合物が、ヒドロキシプロピルメチルセルロースである、請求項1~3のいずれか一項に記載の硬質カプセル。
- ゲル化剤が、カラギーナン、ペクチン、及びジェランガムからなる群から選択される少なくとも一種である、請求項1~4のいずれか一項に記載の硬質カプセル。
- ゲル化剤が、カッパ-カラギーナンである、請求項1~5のいずれか一項に記載の硬質カプセル。
- ゲル化補助剤が、水溶液中で、ナトリウムイオン、カリウムイオン、又はカルシウムイオンを生じることができる化合物である、請求項1~6のいずれか一項に記載の硬質カプセル。
- ゲル化補助剤が、塩化カリウムである、請求項1~7のいずれか一項に記載の硬質カプセル。
- 還元性のない二糖類が、トレハロース、及びスクロースからなる群から選択される少なくとも一種である、請求項1~8のいずれか一項に記載の硬質カプセル。
- 還元性のない二糖アルコールが、マルチトール、ラクチトール、及びイソマルトからなる群から選択される少なくとも一種である、請求項1~9のいずれか一項に記載の硬質カプセル。
- さらに、可塑剤、及び/又は遮光剤を含む、請求項1~10のいずれか一項に記載の硬質カプセル。
- (1)セルロース化合物、(2)ゲル化剤、(3)ゲル化補助剤、並びに(4)還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種、を含む硬質カプセルの調製液であって、調製液の溶媒以外の成分合計を100質量%とした場合に、溶媒以外の皮膜成分合計中のゲル化剤の含有量が0.05~10質量%であり、ゲル化補助剤の含有量が0.6質量%より大きくかつ5質量%以下である、硬質カプセル調製液。
- 調製液の溶媒以外の成分合計を100質量%とした場合に、溶媒以外の皮膜成分合計中の還元性のない二糖類及び還元性のない二糖アルコールよりなる群から選択される少なくとも一種の含有量が1~10質量%である、請求項12に記載の硬質カプセル調製液。
- セルロース化合物が、アルキル基、及びヒドロキシアルキル基からなる群から選択される少なくとも1つの基によってセルロースのヒドロキシ基の水素原子が置換された水溶性のセルロースエーテルである、請求項12又は請求項13に記載の硬質カプセル調製液。
- セルロース化合物が、ヒドロキシプロピルメチルセルロースである、請求項12~14のいずれか一項に記載の硬質カプセル調製液。
- ゲル化剤が、カラギーナン、ペクチン、及びジェランガムからなる群から選択される少なくとも一種である、請求項12~14のいずれか一項に記載の硬質カプセル調製液。
- ゲル化剤が、カッパ-カラギーナンである、請求項12~16のいずれか一項に記載の硬質カプセル調製液。
- ゲル化補助剤が、水溶液中で、ナトリウムイオン、カリウムイオン、又はカルシウムイオンを生じることができる化合物である、請求項12~17のいずれか一項に記載の硬質カプセル調製液。
- ゲル化補助剤が、塩化カリウムである、請求項12~18のいずれか一項に記載の硬質カプセル調製液。
- 還元性のない二糖類が、トレハロース、及びスクロースからなる群から選択される少なくとも一種である、請求項12~19のいずれか一項に記載の硬質カプセル調製液。
- 還元性のない二糖アルコールが、マルチトール、ラクチトール、及びイソマルトからなる群から選択される少なくとも一種である、請求項12~20のいずれか一項に記載の硬質カプセル調整液。
- さらに、可塑剤、及び/又は遮光剤を含む、請求項12~21のいずれか一項に記載の硬質カプセル調製液。
- 下記工程を含む硬質カプセルの調製方法:
請求項12~22のいずれか一項に記載の硬質カプセル調製液を使用して、硬質カプセルを調製する工程。 - 前記硬質カプセルの調製方法が、冷ゲル法である請求項23に記載の硬質カプセルの調製方法。
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| ES17878539T ES3015728T3 (en) | 2016-12-07 | 2017-11-15 | Hard capsule showing improved deposition of gelling adjuvant and method for preparation thereof |
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| EP (1) | EP3552629B1 (ja) |
| JP (1) | JP7039486B2 (ja) |
| KR (1) | KR102406542B1 (ja) |
| CN (1) | CN110191723B (ja) |
| BR (1) | BR112019011253A2 (ja) |
| CA (1) | CA3044929A1 (ja) |
| ES (1) | ES3015728T3 (ja) |
| TW (1) | TW201832760A (ja) |
| WO (1) | WO2018105339A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771285A (zh) * | 2019-01-16 | 2019-05-21 | 温州大学 | 基于药用植物材料来源的粉末和药机 |
| WO2021024930A1 (ja) | 2019-08-02 | 2021-02-11 | クオリカプス株式会社 | タグを含むバンドシールにより封緘された硬質カプセル製剤 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3485911B1 (en) * | 2016-07-06 | 2025-01-29 | Qualicaps Co., Ltd. | Hard capsule having improved hardness, and method for manufacturing same |
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- 2017-11-15 CN CN201780083938.6A patent/CN110191723B/zh active Active
- 2017-11-15 ES ES17878539T patent/ES3015728T3/es active Active
- 2017-11-15 EP EP17878539.0A patent/EP3552629B1/en active Active
- 2017-11-15 BR BR112019011253A patent/BR112019011253A2/pt not_active IP Right Cessation
- 2017-11-15 WO PCT/JP2017/041048 patent/WO2018105339A1/ja not_active Ceased
- 2017-11-15 CA CA3044929A patent/CA3044929A1/en active Pending
- 2017-11-15 JP JP2018554891A patent/JP7039486B2/ja active Active
- 2017-11-15 KR KR1020197017722A patent/KR102406542B1/ko active Active
- 2017-11-15 US US16/465,009 patent/US11318102B2/en active Active
- 2017-12-04 TW TW106142327A patent/TW201832760A/zh unknown
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| US2718667A (en) | 1952-05-01 | 1955-09-27 | Eastman Kodak Co | Method of preparing enteric capsules |
| US3508678A (en) | 1968-04-29 | 1970-04-28 | Parke Davis & Co | Locking capsule |
| US3617588A (en) | 1969-06-16 | 1971-11-02 | Dow Chemical Co | Dip-coating process for preparing cellulose ether capsule shells |
| US3823843A (en) | 1972-10-26 | 1974-07-16 | Lilly Co Eli | Locking capsule |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771285A (zh) * | 2019-01-16 | 2019-05-21 | 温州大学 | 基于药用植物材料来源的粉末和药机 |
| CN109771285B (zh) * | 2019-01-16 | 2021-03-16 | 温州大学 | 基于药用植物材料来源的粉末和药机 |
| WO2021024930A1 (ja) | 2019-08-02 | 2021-02-11 | クオリカプス株式会社 | タグを含むバンドシールにより封緘された硬質カプセル製剤 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110191723A (zh) | 2019-08-30 |
| EP3552629B1 (en) | 2025-01-08 |
| KR102406542B1 (ko) | 2022-06-13 |
| ES3015728T3 (en) | 2025-05-07 |
| TW201832760A (zh) | 2018-09-16 |
| US20190282509A1 (en) | 2019-09-19 |
| US11318102B2 (en) | 2022-05-03 |
| CA3044929A1 (en) | 2018-06-14 |
| EP3552629A1 (en) | 2019-10-16 |
| JPWO2018105339A1 (ja) | 2019-10-24 |
| KR20190093201A (ko) | 2019-08-08 |
| JP7039486B2 (ja) | 2022-03-22 |
| EP3552629A4 (en) | 2020-02-05 |
| BR112019011253A2 (pt) | 2019-10-08 |
| CN110191723B (zh) | 2023-03-10 |
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