WO2025115792A1 - 組成物および固形成形体 - Google Patents

組成物および固形成形体 Download PDF

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Publication number
WO2025115792A1
WO2025115792A1 PCT/JP2024/041555 JP2024041555W WO2025115792A1 WO 2025115792 A1 WO2025115792 A1 WO 2025115792A1 JP 2024041555 W JP2024041555 W JP 2024041555W WO 2025115792 A1 WO2025115792 A1 WO 2025115792A1
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Prior art keywords
composition
mass
solid
solid molded
protein
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Pending
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PCT/JP2024/041555
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English (en)
French (fr)
Japanese (ja)
Inventor
春希 ▲高▼村
優依 小足
貴紘 佐藤
雪人 中里
敏幸 丹羽
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Nagase Viita Co Ltd
Nagase and Co Ltd
Original Assignee
Nagase Viita Co Ltd
Nagase and Co Ltd
Hayashibara Co Ltd
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Application filed by Nagase Viita Co Ltd, Nagase and Co Ltd, Hayashibara Co Ltd filed Critical Nagase Viita Co Ltd
Priority to JP2025520115A priority Critical patent/JP7766851B2/ja
Publication of WO2025115792A1 publication Critical patent/WO2025115792A1/ja
Priority to JP2025182053A priority patent/JP2026012886A/ja
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A23L33/17—Amino acids, peptides or proteins
    • 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
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • 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

Definitions

  • the present invention relates to a composition and a solid molded body.
  • Patent Document 1 discloses solid milk obtained by compressing and molding milk powder
  • Patent Document 2 discloses a nutritional tablet containing protein, carbohydrates, fat, and tricalcium phosphate.
  • the above-mentioned solid molded bodies are required to have both transportability and solubility.
  • one aspect of the present invention aims to provide a solid molded product with a high protein content that has excellent transportability and solubility, and a composition for producing the solid molded product.
  • one aspect of the present invention is a composition for producing a solid molded body containing a protein (a) and a carbohydrate (b), in which the amount of the protein (a) is 50% by mass to 90% by mass and the amount of the carbohydrate (b) is 10% by mass to 50% by mass relative to the total mass of the composition, and the carbohydrate (b) contains maltose.
  • Another aspect of the present invention is a method for producing a solid molding by molding a composition containing a protein (a) and a carbohydrate (b), comprising a tableting step of compressing the composition into tablets, a humidifying step of humidifying the tablet obtained in the tableting step, and a drying step of drying the humidified tablet obtained in the humidifying step, in which the amount of the protein (a) relative to the total mass of the composition is 50% by mass to 90% by mass, the amount of the carbohydrate (b) is 10% by mass to 50% by mass, and the carbohydrate (b) is a composition containing maltose.
  • a further aspect of the present invention is a method for producing a solid molding by molding a composition containing a protein (a) and a carbohydrate (b), comprising a tableting step of tableting the composition, and a hardening step of hardening the tablet obtained in the tableting step using superheated steam, in which the amount of the protein (a) relative to the total mass of the composition is 50% by mass to 90% by mass, the amount of the carbohydrate (b) is 10% by mass to 50% by mass, and the carbohydrate (b) is a composition containing maltose.
  • a solid molded product with a high protein content and excellent transportability and solubility, and a composition for producing the solid molded product.
  • FIG. 1 is a graph showing the screening results of carbohydrates in an example.
  • foods with a high protein content are generally in the form of powder (generally referred to as "protein powder” or the like).
  • protein powder or the like
  • such foods in powder form have a high porosity (approximately 55 to 65%) because they are powders.
  • the head space for inserting a measuring spoon must be secured, and the head space must be increased due to compaction during transportation.
  • a storage space of about 1.88 to 2.1 times the volume of the powder alone is required.
  • foods in powder form have the problem of high storage and transportation costs. In the midst of the demand for a sustainable society, reducing the volume of transported goods and reducing the frequency of transportation is an extremely important social issue.
  • powdered foods are molded (solidified) into solid compacts. If powdered foods could be molded into solid compacts, the porosity would be significantly reduced, allowing for a significant reduction in storage and transportation costs, which would be an extremely beneficial solution for creating a sustainable society. Furthermore, while powdered foods generally need to be stored in plastic containers, solid compacts can be stored in non-plastic containers, which could have social value in terms of moving away from plastic. Furthermore, as there is no need to measure the food each time it is used, this could also contribute to improved usability.
  • solid molded bodies are required to have transport suitability, i.e., resistance to destruction so as not to break or crumble during transport or carrying, and solubility so that they dissolve quickly when used.
  • transport suitability i.e., resistance to destruction so as not to break or crumble during transport or carrying
  • solubility so that they dissolve quickly when used.
  • foods that are particularly high in protein tend to have significantly reduced solubility in water. Therefore, although solid molded bodies may have various advantages over powder forms as mentioned above, conventional technology has not been able to provide solid molded bodies with a high protein content that combine sufficient transport suitability and solubility.
  • the inventors of the present invention conducted extensive research to provide a solid molding having a high protein content that combines sufficient transportability and solubility. As a result, they discovered that by molding a powdered composition that contains a high amount of protein, including a specific carbohydrate, it is possible to provide a solid molding having a high protein content that combines sufficient transportability and solubility, which led to the completion of the present invention.
  • a composition according to one embodiment of the present invention is a composition for producing a solid molded product containing a protein (a) and a carbohydrate (b), the amount of the protein (a) being 50% by mass to 90% by mass and the amount of the carbohydrate (b) being 10% by mass to 50% by mass relative to the total mass of the composition, and the carbohydrate (b) containing maltose.
  • the composition is a composition for producing a solid molded product containing a protein (a) and a carbohydrate (b), the amount of the protein (a) being 50% by mass to 90% by mass and the amount of the carbohydrate (b) being 10% by mass to 50% by mass relative to the total mass of the composition, and the carbohydrate (b) containing maltose.
  • a solid molding having a high protein content is intended to mean a solid molding containing 50% by mass or more of protein relative to the total mass (100% by mass) of the solid molding.
  • the composition contains a protein (a).
  • protein (a) may be referred to as “component (a).”
  • component (a) may also be said to be a protein composition consisting of one or more types of proteins.
  • the protein of component (a) a known protein, preferably a powdered protein, can be used. Furthermore, the protein of component (a) may be an animal protein, a vegetable protein, or a combination of these.
  • animal proteins examples include whey protein, casein protein, egg protein, and proteins (derived from) insects such as crickets and silkworms. Of these, it is preferable that the present composition contains whey protein as component (a) because of the advantages of excellent tableting suitability, good taste, and ease of availability.
  • composition may contain as component (a) include soybean protein, wheat protein, corn protein, buckwheat protein, and proteins derived from seaweed and microalgae.
  • the content of component (a) in the composition is 50% by mass to 90% by mass, preferably 60% by mass to 90% by mass, more preferably 70% by mass to 90% by mass, and even more preferably 80% by mass to 90% by mass, relative to the total mass (100% by mass) of the composition.
  • the content (content ratio) of component (a) in the composition is the content (content ratio) of component (a) in a solid molded product obtained by molding the composition. Therefore, by setting the content of component (a) in the composition to the above range, a solid molded product with a high protein content can be provided. Note that when the composition contains two or more types of proteins as component (a), the content of component (a) in the composition means the total content of each protein.
  • Carbohydrate (b) The present composition contains a carbohydrate (b).
  • the "carbohydrate (b)” may be referred to as “component (b).”
  • Component (b) can also be said to be a complex carbohydrate consisting of one or more types of carbohydrates.
  • the content of component (b) in the composition is 10% by mass to 50% by mass, preferably 10% by mass to 40% by mass, more preferably 10% by mass to 30% by mass, and even more preferably 10% by mass to 20% by mass, relative to the total mass (100% by mass) of the composition.
  • component (b) in the above range in the composition it is possible to provide a solid molded product that has a high protein content while also having sufficient transportability and solubility.
  • the content of component (b) in the composition means the total content of each carbohydrate.
  • the present composition contains maltose as the carbohydrate component (b).
  • the content of maltose as component (b) in the present composition is not particularly limited, but from the viewpoint of improving the transportability and solubility of the resulting solid molded product, it is preferably 5% to 30% by mass, more preferably 5% to 20% by mass, and even more preferably 5% to 10% by mass relative to the total mass (100% by mass) of the present composition.
  • the volume average particle size of maltose, component (b) in this composition is not particularly limited, but from the viewpoint of further improving the transportability and solubility of the resulting solid molded product, it is preferably 10 ⁇ m to 350 ⁇ m, more preferably 12 ⁇ m to 200 ⁇ m, and even more preferably 15 ⁇ m to 100 ⁇ m.
  • the volume average particle size of carbohydrate, component (b) is a value measured by a dry mechanical sieving method (in accordance with JIS Z8815).
  • porous maltose having a large number of pores can also be used as the maltose of component (b) in the present composition.
  • the specific surface area of the porous maltose of component (b) is not particularly limited, but from the viewpoint of further improving the transportability and solubility of the resulting solid molded product, it is preferable that the specific surface area measured by a gas adsorption method using nitrogen gas is 1 m2 /g or more.
  • the pores of the porous maltose, component (b), are not particularly limited, but from the viewpoint of further improving the transportability and solubility of the resulting solid molded body, it is preferable that the pores have a pore volume of 0.1 ml/g or more and show a clear peak at a pore diameter of less than 5 ⁇ m in the pore distribution measured by mercury intrusion porosimetry.
  • the present composition may contain at least maltose as component (b), but may also contain carbohydrates other than maltose.
  • carbohydrates other than maltose that the present composition may contain as component (b) include any monosaccharides, disaccharides, polysaccharides, or sugar alcohols, such as trehalose, lactulose, lactose, sucrose, glucose, fructose, galactose, palatinite, pullulan, isomaltulose, isomaltose, maltitol, erythritol, mannitol, and the like.
  • the present composition may contain only one of these carbohydrates as component (b) in addition to maltose, or may contain two or more of them.
  • the present composition further contains trehalose as component (b).
  • the content of trehalose as component (b) in the present composition is not particularly limited, but from the viewpoint of further improving the solubility of the resulting solid molded product, it is preferably 1% by mass to 20% by mass, more preferably 1% by mass to 15% by mass, and even more preferably 1% by mass to 10% by mass, relative to the total mass (100% by mass) of the present composition.
  • the volume average particle size of trehalose, component (b) in the present composition is not particularly limited, but from the viewpoint of further improving the solubility of the resulting solid molded product, it is preferably 10 ⁇ m to 600 ⁇ m, more preferably 12 ⁇ m to 400 ⁇ m, and even more preferably 15 ⁇ m to 300 ⁇ m.
  • porous trehalose can also be used as the trehalose serving as component (b) in the present composition.
  • the specific surface area of the porous trehalose serving as component (b) is not particularly limited, but from the viewpoint of further improving the transportability and solubility of the resulting solid molded article, it is preferable that the specific surface area measured by a gas adsorption method using nitrogen gas is 1 m2 /g or more.
  • the pores of the porous trehalose, component (b), are not particularly limited, but from the viewpoint of further improving the transportability and solubility of the resulting solid molded product, it is preferable that the pores have a pore volume of 0.1 ml/g or more and show a clear peak at a pore diameter of less than 5 ⁇ m in the pore distribution measured by mercury intrusion porosimetry.
  • the present composition further contains lactulose as component (b).
  • the content of lactulose as component (b) in the present composition is not particularly limited, but from the viewpoint of providing a solid molded product with excellent moisture curing properties, it is preferably 1% by mass to 20% by mass, more preferably 1% by mass to 15% by mass, and even more preferably 1% by mass to 10% by mass, relative to the total mass (100% by mass) of the present composition.
  • the composition contains, as component (b), a complex carbohydrate that contains maltose, trehalose, and lactulose.
  • the present composition may contain components other than the above-mentioned components (a) and (b) (sometimes referred to as "other components") within the scope of not impairing the effects of the present invention.
  • other components include, but are not limited to, antifoaming agents, lipids (oils and fats, etc.), amino acids, minerals, vitamins, carbohydrates, lubricants (emulsifiers), and other food additives (e.g., flavors, sweeteners, acidulants, colorants, etc.).
  • the present composition may contain only one type of these other components, or may contain two or more types.
  • the content of the other components in the composition is not particularly limited as long as the content of components (a) and (b) is equal to or greater than a predetermined amount, but is preferably 0.01% to 40% by mass, more preferably 0.1% to 30% by mass, and even more preferably 1% to 20% by mass, relative to the total mass (100% by mass) of the composition.
  • the content of the other components in the composition refers to the total content of the multiple types of other components.
  • the composition contains an antifoaming agent as another component, since this can suppress the generation of bubbles when the composition is dissolved in water, etc., and as a result, the solubility of the resulting solid molded product can be further improved.
  • composition may contain other components of defoamers such as various defoamers for food applications, for example (poly)glycerin fatty acid esters.
  • defoamers such as various defoamers for food applications, for example (poly)glycerin fatty acid esters.
  • the content of the antifoaming agent in the composition is not particularly limited, but from the viewpoint of further improving the solubility of the resulting solid molded body, it is preferably 0.01% by mass to 40% by mass, more preferably 0.1% by mass to 30% by mass, and even more preferably 1% by mass to 20% by mass, relative to the total mass (100% by mass) of the composition.
  • the content of the other components in the composition refers to the total content of the multiple types of other components.
  • the transportability of the solid molding obtained by molding the present composition is proportional to the hardness of the solid molding after the curing process (the higher the hardness after the curing process, the better the transportability of the solid molding), and the solubility is proportional to the porosity (also called the void ratio) of the solid molding (the higher the porosity, the better the solubility of the solid molding).
  • the porosity of the solid molding is proportional to the thickness of the solid molding (the thicker the solid molding, the higher the void ratio).
  • the present composition is preferably a composition in which the solid molding obtained by curing the present composition satisfies the following formula (1): y ⁇ 14.201x -0.071 ...Equation (1).
  • y represents the thickness (mm) of the solid molding after hardening treatment
  • x represents the hardness (N) of the solid molding after hardening treatment
  • the hardness (after hardening treatment) of the solid compact is a value measured using a load cell type tablet hardness tester (e.g., PC-30 manufactured by Okada Seiko Co., Ltd.).
  • the transportability of a solid molded article obtained by molding the present composition is proportional to the hardness of the solid molded article after curing (the higher the hardness after curing, the better the transportability of the solid molded article). Therefore, from the viewpoint of providing a solid molded article having both excellent transportability and solubility, the present composition is preferably a composition in which the solid molded article obtained by curing the present composition satisfies the following formula (2): w ⁇ 138.29e 0.0172v ...Formula (2).
  • w represents the dissolution time (seconds) of the solid molding after hardening treatment
  • v represents the hardness (N) of the solid molding after hardening treatment
  • e represents the base of the natural logarithm (Napier's constant)].
  • the hardness of a solid molded body is negatively correlated with the dissolution time of the solid molded body, and the higher the hardness of the solid molded body after curing treatment, the longer the dissolution time of the solid molded body tends to be (i.e., the worse the solubility).
  • a composition satisfies the above formula (2) it means that the composition can dissolve in a sufficiently short time despite having excellent hardness.
  • the composition is a composition that can provide a solid molded body that has both excellent transportability and solubility.
  • the solid molded product in the above formulas (1) and (2) is a solid molded product obtained by compressing and hardening 2 g of the present composition to a diameter of 20 mm. Therefore, when determining whether or not a given composition satisfies the above formula (1) and/or formula (2), the hardness or dissolution time of a solid molded product obtained by compressing and hardening 2 g of the subject composition to a diameter of 20 mm is measured and used in the calculation of formula (1) and/or formula (2).
  • the hardness, thickness and dissolution time of the solid molded body after the hardening treatment in the above formulas (1) and (2) can be measured by the method described in the Examples.
  • the hardening treatment in the above formulas (1) and (2) refers to the humidification and drying steps or the hardening step described below. That is, in the above formulas (1) and (2), the solid molded body before the hardening treatment refers to the tableted product after the tableting step and before the humidification step or hardening step, and the solid molded body after the hardening treatment refers to the solid molded body that has been through the humidification step and the drying step or the hardening step. Therefore, the specific conditions for each step can be appropriately selected from the conditions described in the section [4. Method for producing the composition and the solid molded body] described below.
  • hardness refers to the hardness of a solid molded product obtained by tableting and curing a composition weighing 2 g to a diameter of 20 mm.
  • the hardness can be converted into stress to determine whether or not the above formula is satisfied.
  • stress of solid molded product (N/ m2 ) refers to the value obtained by dividing the hardness (N) of the solid molded product by the cross-sectional area of the solid molded product.
  • Solid molded body In one embodiment of the present invention, a solid molded body is provided by molding the present composition.
  • the "solid molded body according to one embodiment of the present invention” may be referred to as the "present molded body”.
  • the present molded product is a solid product formed by molding the present composition, and therefore has a high protein content while also achieving excellent transportability and solubility.
  • the present molded product is a solid molded product obtained by molding the present composition. Therefore, the components and their compositions contained in the present molded product are the same as those of the present composition. Therefore, the present molded product can also be expressed as follows: a solid molded product containing a protein (a) and a carbohydrate (b), in which the amount of the protein (a) is 50% by mass to 90% by mass and the amount of the carbohydrate (b) is 10% by mass to 50% by mass relative to the total mass of the solid molded product, and the carbohydrate (b) contains maltose.
  • the present molded body is a solid molded body having excellent suitability for transportation.
  • the suitability for transportation of a solid molded body is an index of the quality that the solid molded body should have during transportation.
  • the suitability for transportation of a solid molded body can be roughly divided into suitability for transportation during production and suitability for transportation after hardening treatment.
  • a problem in transportation during production is that the solid molded body is broken or chipped during transportation by a conveyor or a robot hand during transportation after tableting until the hardening treatment.
  • Such a problem can be solved by improving the hardness (N) of the molded body (compressed product) before the hardening treatment.
  • the suitability for transportation during production of a solid molded body can be evaluated by the hardness (N) of the molded body (compressed product) before the hardening treatment or the stress (N/m 2 ), which is the value obtained by dividing the hardness (N) of the solid molded body by the cross-sectional area of the solid molded body.
  • N the hardness of the molded body (compressed product) before the hardening treatment
  • N/m 2 the stress
  • a problem in transportation after hardening treatment is that the solid molded body is broken, cracked, or chipped when dropped.
  • Such a problem can be solved by improving the drop strength of the solid molded body after hardening treatment. That is, the suitability of a solid molding for transportation after hardening treatment can be evaluated based on the drop strength of the solid molding.
  • a solid molded body having excellent suitability for transportation refers to a solid molded body that has excellent suitability for transportation at least after a curing process, out of the two types of transport suitability mentioned above.
  • this molded body is a solid molded body that has excellent suitability for transportation after a curing process, and preferably is a solid molded body that has excellent suitability for transportation both during production and after a curing process.
  • the transportability of a solid molding can be evaluated by a drop strength test using the following methods (1) to (3): (1) Five samples of a solid molding produced under specified conditions (specifically, conditions described in the Examples) are prepared, and each sample is dropped one by one from a height of 80 cm onto a 10 mm thick SUS304 plate; (2) The number of times that the sample does not crack out of the total of five drops is counted; (3) A solid molding that does not crack three or more times is evaluated as having excellent transportability (suitability for transport after curing).
  • This molded body is a solid molded body with excellent solubility.
  • the solubility of the solid molded body can be evaluated by the following method: (1) A sample of the solid molded body produced under predetermined conditions (specifically, the conditions described in the Examples) is placed in a rotating basket with an inner diameter of 30 mm and a height of 30 mm, and with holes of 2.0 mm in diameter at equal intervals on the top, bottom and wall surfaces; (2) The rotating basket containing the sample and 900 ion-exchanged water (within an error of 10 mL) are placed in a round-bottom flask, the liquid temperature is kept at 25.0 ° C.
  • the rotating basket containing the sample is rotated at a rotation speed of 300 ⁇ 3 rpm.
  • the electrical conductivity of the solution is measured every second; (3)
  • the electrical conductivity at each time is standardized with the value when the sample does not remain in the rotating basket; (4)
  • the solubility of the solid molded body at each time is calculated from the standardized results, and the solubility of the solid molded body is evaluated based on the relationship between the calculated solubility and the rotation time. Specifically, in the above method, a solid molding that requires less than 350 seconds to reach a solubility of 95% (for 95% of the solid molding to dissolve) is evaluated as having excellent solubility.
  • a solid molded product has excellent solubility (i.e., the solid molded product meets the above criteria) means that the solid molded product not only dissolves easily in relatively high-temperature liquids (85°C) that dissolve powdered milk, but also dissolves quickly in water and various liquids that use water as a solvent (especially milk, soft drinks, coffee, etc.) at relatively low temperatures (approximately 5 to 40°C) at which solid molded products are generally difficult to dissolve. In other words, it means that the solid molded product is suitable for everyday use (ingestion).
  • the present molded body can be suitably used as a food for daily intake, more specifically, as a luxury item such as sweets, health foods, health supplements, health functional foods, foods for specified health uses, nutritional functional foods, supplements, or foods with functional claims.
  • Method for producing the composition and the solid molded product ⁇ Method of producing the present composition>
  • the method for producing the present composition is not particularly limited, and the present composition can be produced according to a known method by weighing and mixing 50 to 90 parts by mass of component (a), 10 to 50 parts by mass of component (b), and other optional components so that the total amount is 100 parts by mass.
  • component (a), component (b) and other optional components used in the method for producing this composition will be the content of each component in the resulting solid molded product. Therefore, in the method for producing this composition, it is preferable to adjust the amount of each component used so that the resulting solid molded product has the desired composition, in particular the desired protein content.
  • the method for producing the present molded body is not particularly limited as long as it is possible to obtain a molded body by molding the present composition, but from the viewpoint of obtaining a solid molded body having better transportability, a method including a tableting step, a humidifying step and a drying step, or a method including a tableting step and a hardening step can be mentioned as a preferred method.
  • the method for producing the present molded body is preferably any one of the following methods: A method for producing a solid molded product obtained by molding a composition containing a protein (a) and a carbohydrate (b), comprising a tableting step of compressing the composition into tablets, a humidifying step of humidifying the tableted product obtained in the tableting step, and a drying step of drying the humidified tableted product obtained in the humidifying step, wherein the amount of the protein (a) relative to the total mass of the composition is 50% by mass to 90% by mass, the amount of the carbohydrate (b) relative to the total mass of the composition is 10% by mass to 50% by mass, and the carbohydrate (b) contains maltose (i.e., the present composition) ...
  • Method 1 A method for producing a solid molded product obtained by molding a composition containing a protein (a) and a carbohydrate (b), comprising: a tableting step of tableting the composition; and a hardening step of hardening the tablet obtained in the tableting step with superheated steam, wherein the composition contains maltose as the carbohydrate (b) and the amount of the protein (a) is 50% by mass to 90% by mass and 10% by mass to 50% by mass, relative to the total mass of the composition... (Method 2).
  • Method 1 First, a preferred embodiment of the present method for producing a molded product will be described in detail, taking as an example a method (method (1)) including a tableting step, a humidifying step, and a drying step.
  • a method including a tableting step, a humidifying step, and a drying step.
  • the description of the composition i.e., the present composition
  • a predetermined amount of protein (a) and carbohydrate (b) used in the present production method is omitted in this section, as the description in the above section [2. Composition] is incorporated herein.
  • the method for producing the present molded product preferably includes a tableting step of tableting the present composition.
  • a solid molded product having superior hardness can be provided, and deformation of the molded product (compressed product) made of the present composition can be suppressed in the subsequent humidifying step and drying step.
  • the method for tableting the composition is not particularly limited, but it is preferable to use a tablet press to tablet the composition, since this makes it easier to control the tableting strength (also called tableting load) and the size of the resulting tablets, and from the standpoint of productivity.
  • the tableting strength in the tableting process is preferably a hardness that can prevent the obtained tablet from being broken or chipped during transportation to the subsequent humidification and drying processes, and from losing its shape in the subsequent humidification and drying processes.
  • the tableting strength in the tableting process is not particularly limited as long as it is a tableting strength that results in a tableted product with a hardness of 3N to 10N, preferably 3N to 5N.
  • the upper limit of the tableting strength is not particularly limited, but may be 6 kN or less.
  • the hardness of the tableted product can also be said to be the hardness of the present molded body before the hardening treatment.
  • the thickness of the tablet obtained in the tableting process correlates with the porosity in the tablet, and the thicker the tablet obtained by tableting an equivalent amount of the composition, the higher the porosity of the tablet. Therefore, from the viewpoint of providing a solid molded product with a high porosity, it is preferable to tablet the present composition in the tableting process so that the thickness of the obtained tablet is as large as possible. However, if the tableting strength is reduced in order to increase the thickness of the obtained tablet, the strength of the obtained tablet also decreases. That is, in the conventional technology, there is a trade-off between the thickness and hardness of the obtained tablet, and it was difficult to obtain a tablet that is both thick and hard.
  • the present composition contains component (b), even if the composition is tableted at a relatively weak tableting strength (for example, about 3 to 6 kN) in order to increase the thickness of the obtained tablet, a tablet having a sufficient hardness of 10 N or more can be provided. This makes it possible to provide tablets with a large thickness, in other words, a high porosity, and ultimately a solid molding with a high porosity and excellent solubility.
  • a relatively weak tableting strength for example, about 3 to 6 kN
  • the method for producing the present molded product preferably includes a humidifying step of humidifying the tablet obtained in the tableting step to obtain a humidified tablet.
  • a humidifying step of humidifying the tablet obtained in the tableting step By carrying out the humidifying step, some of the particles of the present composition present on the surface of the tablet become liquid or gel-like and crosslink with each other. As a result, a strong structure made of the present composition can be formed on the surface of the humidified tablet. As a result, the strength of the obtained solid molded product can be improved, and a solid molded product with better transportability can be provided.
  • the method of humidifying the tableted product is not particularly limited, but examples include a method of leaving the tableted product in a high-humidity environment, a method of directly spraying water or the like onto the tableted product, and a method of blowing steam onto the tableted product.
  • the humidification method is not particularly limited, and any method such as a continuous method or a batch method may be used.
  • the humidity of the environment is not particularly limited, but may be, for example, 60% RH to 100% RH, preferably 80% RH to 100% RH, and more preferably 90% RH to 100% RH.
  • the humidification time in the humidification step is preferably 10 to 300 seconds, more preferably 20 to 250 seconds, and even more preferably 30 to 200 seconds.
  • the method for producing the present molded product preferably includes a drying step of drying the moistened tablet obtained in the moistening step to obtain a solid molded product.
  • a drying step of drying the moistened tablet obtained in the moistening step By carrying out the drying step, it is possible to remove stickiness (tack) from the liquid or gel structure formed on the surface of the moistened tablet in the moistening step, and as a result, it is possible to provide a solid molded product having a strong structure made of the present composition cross-linked with each other and excellent in handleability.
  • This series of operations consisting of the moistening step and the drying step may be referred to as a moistening curing step.
  • the method for drying the humidified tableted product is not particularly limited, but examples include a method in which the humidified tableted product is left to stand in a low-humidity and high-temperature environment, a method in which the humidified tableted product is dried using a dryer, and a method in which hot air is blown onto the humidified tableted product (hot air drying).
  • the temperature at which the moistened tablet product is dried is not particularly limited, but may be, for example, 20 to 90°C, preferably 30 to 80°C, and more preferably 40 to 60°C.
  • Method 2 Next, another preferred embodiment of the present method for producing a molded body will be described in detail, taking as an example a method (Method (2)) including a tableting step and a hardening step. Note that, regarding Method (2), the specific embodiment of the tableting step is the same as that of (Method (1)), so the description will be omitted in this section.
  • the method for producing the molded product preferably includes a curing step of curing the tablet obtained in the tableting step using superheated steam.
  • This curing step can also be said to be a step of contacting the tablet with superheated steam.
  • a strong structure made of the present composition can be formed on the surface of the tablet, as in the above-mentioned humidifying step, and at the same time, stickiness (tack) can be removed from the liquid or gel structure formed on the surface of the tablet, as in the above-mentioned drying step.
  • tack stickiness
  • a solid molded product having a strong structure made of the present composition crosslinked with each other and excellent in handleability can be provided.
  • the curing method using superheated steam can be said to be a method of simultaneously carrying out humidification and drying.
  • superheated steam refers to steam heated to a temperature above the boiling point of water.
  • the method of treating the tableted product with superheated steam is not particularly limited, but examples include a method in which the tableted product is placed in a constant temperature and humidity chamber, and a method in which superheated steam is sprayed onto the tableted product in a conveyor-type continuous furnace.
  • the temperature of the superheated steam used in the curing process is not particularly limited, but is preferably 100 to 300°C, more preferably 110 to 250°C, and even more preferably 120 to 220°C.
  • the curing time in the curing process is preferably 10 to 300 seconds, more preferably 20 to 250 seconds, and even more preferably 30 to 200 seconds.
  • the hardness of the solid molded body obtained through the humidification step and drying step or the curing step is preferably 10N or more, more preferably 15N or more, and even more preferably 25N or more, from the viewpoint of providing a solid molded body with better suitability for transportation.
  • the hardness of the solid molded body is preferably 30N or less.
  • the hardness of the solid molded body is preferably 10N to 30N, more preferably 20N to 30N, and even more preferably 25N to 30N.
  • One aspect of the present invention may include the following configuration.
  • a composition for producing a solid molded body comprising a protein (a) and a carbohydrate (b), the amount of the protein (a) being 50% by mass to 90% by mass and the amount of the carbohydrate (b) being 10% by mass to 50% by mass relative to the total mass of the composition, and the carbohydrate (b) containing maltose.
  • composition according to [1] further comprising trehalose as the carbohydrate (b).
  • composition according to [2] which contains 1% by mass to 20% by mass of trehalose relative to the total mass of the composition.
  • composition according to any one of [1] to [6], further comprising an antifoaming agent comprising an antifoaming agent.
  • a method for producing a solid molding by molding a composition containing a protein (a) and a carbohydrate (b), comprising a tableting step of compressing the composition into tablets, a humidifying step of humidifying the tablet obtained in the tableting step, and a drying step of drying the humidified tablet obtained in the humidifying step, wherein the amount of the protein (a) relative to the total mass of the composition is 50% by mass to 90% by mass, the amount of the carbohydrate (b) is 10% by mass to 50% by mass, and the carbohydrate (b) is a composition containing maltose.
  • a method for producing a solid molding by molding a composition containing a protein (a) and a carbohydrate (b), comprising a tableting step of tableting the composition, and a hardening step of hardening the tablet obtained in the tableting step with superheated steam, wherein the amount of the protein (a) relative to the total mass of the composition is 50% by mass to 90% by mass, the amount of the carbohydrate (b) is 10% by mass to 50% by mass, and the carbohydrate (b) is a composition containing maltose.
  • Carbohydrates used Maltose, palatinit, glucose, pullulan, trehalose, palatinose, maltitol and erythritol.
  • each of the obtained compositions was compressed into tablets while adjusting the compression strength appropriately so that the hardness after compression would be 5N, and tablets with a hardness of 5N were obtained.
  • the thickness of the obtained tablets was measured. The results are shown in Figure 1. Note that the thickness of the tableted products and solid compacts in the examples was measured using a vernier caliper (Mitutoyo ABS Digimatic Caliper CD-AX), and the hardness of the tableted products and solid compacts was measured using a load cell type tablet hardness tester (Okada Seiko PC-30).
  • Maltose was the saccharide that showed the greatest thickness when tableted to a tablet hardness of 5 N. Since the thickness of the tablet correlates with the solubility of the final solid compact, it was suggested that maltose is the optimal saccharide from the viewpoint of providing a solid compact excellent in both transportability and solubility.
  • Examples 1-2 and Comparative Examples 1-2 (Preparation of Composition) A powder composition was obtained by mixing the materials of the types and ratios shown in Table 1. Details of the materials used are as follows.
  • b-2 Trehalose (manufactured by Hayashibara Co., Ltd., product name "Treha (registered trademark)”)
  • b-3 Lactulose (manufactured by Morinaga Milk Industry Co., Ltd., product name "Milk Oligosaccharide MLC (registered trademark)-97")
  • Antifoaming agent Antifoaming agent preparation (manufactured by Riken Vitamin Co
  • the resulting composition and the molded article obtained by molding the composition were measured or evaluated for tableting properties, humidification hardening properties, transport suitability, and solubility according to the following methods.
  • the tableted products obtained by tableting Compositions 1 and 2 satisfying the requirements of the present composition have excellent hardness when tableted at the same tableting strength, compared with the tableted products obtained by tableting Comparative Compositions 1 and 2.
  • a comparison of the results of tableting Composition 1 at 2 kN and the results of tableting Comparative Composition 1 at 5 kN shows that a tableted product having a superior thickness can be provided while providing the same degree of hardness.
  • tableting the present composition can provide a tableted product having excellent thickness and hardness, which can provide a solid molded product having excellent transportability and solubility.
  • each of the above compositions was compressed at a compression strength that resulted in a hardness of 1.00 N to obtain a compressed product with a hardness of 1.00 N.
  • the obtained compressed products were left to stand in a thermostatic chamber at a humidity of 95% RH and a temperature of 80° C. for the times (humidification times) shown in Table 3, and humidified to obtain humidified compressed products.
  • the hardness of the obtained humidified compressed products was measured. The results are shown in Table 3. As shown in Table 3, for some of the humidified compressed products derived from Comparative Composition 1 and Comparative Composition 2, the compressed products had not hardened at the end of the specified humidification time, and the hardness could not be measured.
  • the humidified tablet products derived from compositions 1 and 2 which satisfy the requirements of the present composition can achieve a significantly higher hardness in a shorter time than the humidified tablet products derived from comparative compositions 1 and 2.
  • the transport suitability of each solid molding obtained was evaluated by the following method: (1) Five samples of each solid molding were prepared, and each sample was dropped one by one from a height of 80 cm onto a 10 mm thick SUS304 plate; (2) The number of times that the sample did not crack out of a total of five drops was counted for each solid molding; (3) Based on the number of samples that did not crack, the transport suitability of each molding was evaluated according to the following criteria. The evaluation results of transport suitability are shown in Table 4.
  • the solubility of each solid molded body obtained was evaluated by the following method: (1) The prepared solid molded body sample was placed in a rotating basket with an inner diameter of 30 mm and a height of 30 mm, and with holes of 2.0 mm in diameter at equal intervals on the top, bottom and wall surfaces; (2) The rotating basket containing the sample and 900 mL of ion-exchanged water (within a margin of error of 10 mL) were placed in a round-bottom flask, and the liquid temperature was kept at 25.0 ° C. (within a margin of error of 1 ° C.), and the rotating basket containing the sample was rotated at a rotation speed of 300 ⁇ 3 rpm.
  • the electrical conductivity of the solution was measured every second; (3) The electrical conductivity at each time was standardized by the value when the sample did not remain in the rotating basket; (4) From the standardized results, the solubility of the solid molded body at each time was calculated, and the solubility of the solid molded body was evaluated according to the following criteria based on the relationship between the calculated solubility and the rotation time. The evaluation results of the solubility are shown in Table 5.
  • Normalized electronegativity of sample at time (t) electronegativity of sample at time (t) [ ⁇ S/cm]/electronegativity at time (t 2 ) [ ⁇ S/cm] with no sample remaining in the rotating basket.
  • Evaluation criteria for solubility The time required for the solubility to reach 95% (for 95% of the solid molded body to dissolve) is less than 350 seconds: Excellent solubility (Excellent) The time required for the solubility to reach 95% (for 95% of the solid molded body to dissolve) is 350 seconds or more: the solubility is poor (poor) The solubility after 500 seconds of rotation is less than 5%: insoluble ((solid molding is almost or completely soluble in water) (insoluble)).
  • the “dissolution time of the solid molding (after hardening treatment)” refers to the time required for 100% of the solid molding to dissolve when the above operations (1) to (4) are carried out on a solid molding obtained by tableting and hardening a 2 g composition to a diameter of 20 mm in the same manner as the above operations.
  • the solid molded product according to one embodiment of the present invention can be suitably used in the food industry and the like as a solid molded product having a high protein content and excellent transportability and solubility.

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1056969A (ja) * 1996-08-13 1998-03-03 Fuji Oil Co Ltd 大豆蛋白・ココア顆粒及びその製造法
JP2016116494A (ja) * 2014-12-22 2016-06-30 アサヒグループ食品株式会社 易溶解性高タンパク含有粉末の製造方法及び易溶解性高タンパク含有粉末
WO2022039173A1 (ja) * 2020-08-18 2022-02-24 ユーハ味覚糖株式会社 口中速崩壊性固形食品及びその製造方法
JP2022075913A (ja) * 2019-09-13 2022-05-18 株式会社明治 固形食品及び固形乳

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154918A (en) * 1974-10-08 1976-05-14 Nippon Kayaku Kk Jozaino seizoho
US20190000127A1 (en) 2017-06-29 2019-01-03 International Dehydrated Foods, Inc. High-protein compositions and methods of their making and use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1056969A (ja) * 1996-08-13 1998-03-03 Fuji Oil Co Ltd 大豆蛋白・ココア顆粒及びその製造法
JP2016116494A (ja) * 2014-12-22 2016-06-30 アサヒグループ食品株式会社 易溶解性高タンパク含有粉末の製造方法及び易溶解性高タンパク含有粉末
JP2022075913A (ja) * 2019-09-13 2022-05-18 株式会社明治 固形食品及び固形乳
WO2022039173A1 (ja) * 2020-08-18 2022-02-24 ユーハ味覚糖株式会社 口中速崩壊性固形食品及びその製造方法

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