Classifications

• • 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
  • A23L33/30—Dietetic or nutritional methods, e.g. for losing weight
• • 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
  • A23L33/20—Reducing nutritive value; Dietetic products with reduced nutritive value
  • A23L33/21—Addition of substantially indigestible substances, e.g. dietary fibres
• • 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
  • A23L29/212—Starch; Modified starch; Starch derivatives, e.g. esters or ethers
• • 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
• • 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
  • A23L29/25—Exudates, e.g. gum arabic, gum acacia, gum karaya or tragacanth
• • 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
• • 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
  • A23L29/27—Xanthan not combined with other microbial gums
• • 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
  • A23L29/275—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of animal origin, e.g. chitin
  • A23L29/281—Proteins, e.g. gelatin or collagen
  • A23L29/284—Gelatin; Collagen
• • 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
  • A23L33/125—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
• • 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
  • A23L33/18—Peptides; Protein hydrolysates
• • 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
  • A23L33/19—Dairy 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
  • A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
  • A23L33/40—Complete food formulations for specific consumer groups or specific purposes, e.g. infant formula
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2200/00—Function of food ingredients
  • A23V2200/20—Ingredients acting on or related to the structure
  • A23V2200/242—Thickening agent
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2250/00—Food ingredients
  • A23V2250/54—Proteins
  • A23V2250/542—Animal Protein
  • A23V2250/5422—Collagen
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2250/00—Food ingredients
  • A23V2250/54—Proteins
  • A23V2250/542—Animal Protein
  • A23V2250/5424—Dairy protein
  • A23V2250/54246—Casein

Definitions

• the present invention relates to a high-quality nutritional composition that suppresses the occurrence of gastroesophageal reflux, diarrhea, and the like.
• Patent Documents 1 to 6 a gelling agent (eg, alginate) that gels under acid conditions (when mixed with gastric juice) is used, and in addition, Ca salts and Mg salts that are soluble under acid conditions are used. It has been proposed to thicken or gel in the stomach by adding and reacting with a gelling agent.
• a gelling agent eg, alginate
• Ca salts and Mg salts that are soluble under acid conditions
• alginate When alginate is used as a gelling agent in such nutritional compositions, it is known that when casein is used as a protein source, alginate and casein interact with each other through hydrogen bonding or the like, destabilizing casein. there is for this reason, soybean protein is commonly used as a protein source for nutritional compositions for stabilization.
• casein which has a higher essential amino acid composition and a higher BCAA (Branched Chain Amino Acid) content than soy protein, is desirable as a protein source for nursing care foods and medical foods. Therefore, there is a demand for the development of a nutritional composition that contains casein as a protein source and has an appropriate viscosity under acidic conditions.
• BCAA Branched Chain Amino Acid
• the present invention provides a nutritional composition that has a shape that is easy to ingest, does not significantly decrease in viscosity under acidic conditions (when mixed with gastric juice), and has excellent nutrients.
• the present invention provides the following [1] to [10].
• a nutritional composition comprising casein, collagen, and a thickening agent, wherein the thickening agent does not exhibit gelling properties caused by cooling after heating and is soluble in acid.
• the thickener is at least one selected from the group consisting of tamarind gum, succinoglycan, tara gum, guar gum, locust bean gum, xanthan gum and pectin.
• the nutritional composition according to [1] or [2] which is in liquid or semi-solid form.
• the described nutritional composition [10] The nutritional composition according to any one of [1] to [9], wherein the thickener is succinoglycan.
• casein rather than using a gelling agent to thicken or gel, the acid cohesiveness of casein can be used to avoid a significant decrease in viscosity under acidic conditions (when mixed with simulated gastric juice). No, I remembered. As a result of further studies, the inventors have found that the above problems can be solved by using casein, collagen, and a specific thickening agent in combination.
• the nutritional composition of the present invention stably contains excellent nutrients, is easy to administer by tube feeding, and does not significantly decrease in viscosity under acidic conditions (when mixed with simulated gastric juice). It can suppress the occurrence of regurgitation and diarrhea. Therefore, it can be preferably used as nursing food and medical food.
• the nutritional composition according to one embodiment of the present invention includes casein (A), collagen (B), and a thickener ( C). These are described in detail below.
• the casein (A) is a type of protein derived from milk, and is usually raw milk, milk, whole milk powder, skimmed milk powder, skimmed concentrated milk, buttermilk, cheese, etc. (hereinafter sometimes referred to as "milk, etc.”). It is obtained by performing treatments such as separation, fractionation, concentration, etc. from the In particular, it is preferable to use a solubilized salt (caseinate) obtained by neutralizing the separated casein with an alkali such as sodium hydroxide.
• the caseinate include calcium caseinate, sodium caseinate, potassium caseinate, and magnesium caseinate. Among them, potassium caseinate and sodium caseinate are preferably used because of their excellent stability. These can be used alone or in combination of two or more.
• casein that has been slightly hydrolyzed to the extent that the functions of casein such as acid-aggregating properties are not lost can also be used.
• casein (A) does not exhibit the effects peculiar to the present invention when it is hydrolyzed to such an extent that it loses functions such as acid-aggregating properties (e.g., those with an average molecular weight of less than 1000). Not included.
• the above casein (A) is contained preferably in the range of 2 to 15% by mass, more preferably in the range of 3 to 10% by mass, and in the range of 4 to 8% by mass, relative to the entire nutritional composition. is particularly preferred.
• the content of the casein (A) is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the casein (A) is preferably contained in an amount of 30% by mass or more of the total protein (D), more preferably 35 to 95% by mass, even more preferably 40 to 90% by mass, It is more preferably contained in an amount of 45 to 85% by mass, and even more preferably in an amount of 65 to 80% by mass. That is, when the ratio [(A)/(D)] (% by mass) of casein (A) to the total protein (D) is set within the above range, viscosity reduction and syneresis during mixing of simulated gastric juice are suppressed. , there is a tendency to obtain nutritional compositions with smooth physical properties.
• the above-mentioned total protein (D) means the sum of proteins other than casein (A), collagen (B), (A) and (B).
• the reference to the protein content of casein (A) and other proteins refers to the protein actually contained in the nutritional composition, and such protein content is, for example, It can be calculated based on the mass of the material used as protein and the protein content ratio (% by mass) of the material.
• the collagen (B) is a fibrous protein that constitutes skin, tendon, cartilage, etc.
• Collagen used in the present embodiment may be animal-derived collagen or synthetic collagen.
• collagen peptides obtained by hydrolyzing collagen (B) and atelocollagen obtained by enzymatically treating collagen molecules to remove telopeptide portions are also included. Among them, those derived from animals are preferred, and collagen peptides are more preferably used. These can be used alone or in combination of two or more.
• the collagen (B) is preferably contained in the range of 0.5 to 5% by mass, more preferably in the range of 1.5 to 3.5% by mass, relative to the entire nutritional composition. A range of 0.8 to 3% by weight is particularly preferred. When the content of the collagen (B) is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the collagen (B) content is preferably 5 to 45% by mass, more preferably 10 to 40% by mass, and even more preferably 15 to 35% by mass of the total protein (D). That is, when the content of the collagen (B) is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the ratio [(B)/(A)] of the collagen (B) to the casein (A) is preferably in the range of 0.05 to 1.0, more preferably in the range of 0.1 to 0.6. is more preferable, and more preferably in the range of 0.2 to 0.4.
• the above ratio [(B)/(A)] is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the term “gelling property caused by cooling after heating” means that when a solution or suspension is heated (approximately 60° C. or higher), it solidifies during cooling after heating to form a gel. means that Moreover, the term “acid-soluble” means neither gelation nor insolubilization at pH 5 or less.
• Natural gums are particularly preferred as thickening agents having such properties, and specifically, tamarind gum, succinoglycan, tara gum, guar gum, locust bean gum, xanthan gum, and pectin are preferably used. Among them, tamarind gum and succinoglycan are preferred, and succinoglycan is more preferred because of its excellent preservability. These can be used alone or in combination of two or more.
• the thickening agent (C) is preferably contained in the range of 0.01 to 2% by mass, more preferably in the range of 0.02 to 1% by mass, based on the total nutritional composition. It is more preferably in the range of 0.04 to 0.5% by mass, and particularly preferably in the range of 0.04 to 0.2% by mass.
• the content of the thickening agent (C) is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• alginate which has been widely used in the past, is not applicable to the thickening agent (C) of the present embodiment because it gels with acid. However, it may contain alginate as long as it does not deviate from the spirit of the present invention.
• it is preferably 0.4% by mass or less, and 0.04% by mass, relative to the entire nutritional composition. % or less, and more preferably not contained at all.
• the ratio [(C)/(A)] of the thickener (C) to the casein (A) is preferably in the range of 0.005 to 0.2, more preferably in the range of 0.008 to 0.09. It is more preferable to be in When the above ratio [(C)/(A)] is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the nutritional composition of the present embodiment contains, as optional ingredients, proteins other than casein and collagen, modified starch, lipids, Carbohydrates, vitamins, minerals, dietary fiber, agar, etc. can be contained, and among them, it is preferable to contain modified starch, lipids, carbohydrates, vitamins, minerals, and dietary fiber. It is more preferable to contain all of vitamins, minerals and dietary fiber. These can be used alone or in combination of two or more.
• Proteins other than casein (A) and collagen (B) include casein peptides, egg white proteins, whey proteins and their peptides, soybean proteins and their peptides. These can be used alone or in combination of two or more.
• the content of proteins other than the above (A) and (B) is preferably 5% by mass or less, more preferably 3% by mass or less, and 2% by mass or less with respect to the entire nutritional composition. is more preferred.
• the content of the protein is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the above-mentioned modified starch is a starch that has undergone various processing (enzymatic, physical, chemical) to modify or improve its properties or to impart or enhance functionality, and is generally used for food. can be used.
• modified starch include hydroxypropyl starch, phosphate-crosslinked starch, acetylated adipic acid-crosslinked starch, and oxidized starch. Among them, hydroxypropyl starch and phosphate-crosslinked starch are preferably used.
• the content of the modified starch is preferably in the range of 0 to 2% by mass, more preferably in the range of 0.2 to 1.5% by mass, and 0.3 to More preferably, it is in the range of 1% by mass. When the content of the modified starch is set within the above range, the emulsified state after heat sterilization tends to be stabilized.
• lipid those generally used for food can be used.
• examples of such lipids include various oils and emulsifiers.
• examples of the oil include vegetable oils such as perilla oil, olive oil, soybean oil and rapeseed oil, fish oils, medium-chain fatty acid triglycerides, etc.
• rapeseed oil and soybean oil are preferably used. These can be used alone or in combination of two or more.
• the lipid content is preferably in the range of 1 to 10% by mass, more preferably in the range of 2 to 8% by mass, and in the range of 2.5 to 5% by mass, relative to the entire nutritional composition. It is more preferable to be in
• saccharide examples include saccharides such as dextrin that are taken into the body as food and become an energy source, and include monosaccharides, oligosaccharides, polysaccharides, and the like.
• the above polysaccharides also include digestible polysaccharides such as starch and glycogen. These can be used alone or in combination of two or more. Modified starch is not included in the above starch.
• Dietary fiber> examples of the dietary fiber include dietary fiber that cannot be digested by digestive enzymes in the body, and includes both insoluble dietary fiber and water-soluble dietary fiber. Examples of the insoluble dietary fiber include cellulose, hemicellulose, chitin and chitosan.
• water-soluble dietary fiber examples include guar gum decomposition products, indigestible dextrin, glucomannan, polydextrose and the like.
• pectin, alginic acid, and carrageenan which are water-soluble dietary fibers, are classified as thickeners in the present embodiment and are not included in dietary fiber.
• the content of the total amount of carbohydrates and dietary fiber (carbohydrates) is preferably in the range of 3 to 45% by mass, more preferably in the range of 7 to 40% by mass, relative to the entire nutritional composition. , more preferably in the range of 15 to 30 mass %.
• vitamins examples include vitamin B group (B1, B2, B6, B12, niacin, pantothenic acid, folic acid, biotin), water-soluble vitamins such as vitamin C, and vitamins A, vitamin D, vitamin E, vitamin K and the like. Contains fat-soluble vitamins.
• vitamin derivatives for example, salts such as hydrochlorides and calcium salts
• the minerals include macrominerals such as sodium, potassium, calcium, magnesium and phosphorus, and trace minerals such as iron, zinc, copper, manganese, iodine, selenium, chromium and molybdenum. These may be blended as an inorganic electrolyte component, or may be blended as an organic electrolyte component. These can be used alone or in combination of two or more.
• agar is preferably used in order to adjust the viscosity and stabilize the shape.
• the content of the agar is preferably 5% by mass or less with respect to the entire nutritional composition, and when used, is preferably in the range of 0.05 to 3% by mass, and 0.08 to 1% by mass. %, more preferably 0.09 to 0.5% by mass, and even more preferably 0.1 to 0.3% by mass.
• Agar is a frozen and dried mucus of red algae such as agaricus and Gracilaria, and is composed mostly of dietary fiber, but in the present embodiment, it is treated separately from the dietary fiber. Agar is not included in the above dietary fiber.
• the nutritional composition of the present embodiment in addition to the optional ingredients exemplified above, general ingredients used in processed foods are preferably added to the nutritional composition as a whole, as long as it does not depart from the spirit of the present invention. It may be contained at a rate of 50% by mass or less.
• the form of the nutritional composition of the present embodiment is not particularly limited, but liquid and semi-solid forms are particularly preferred. That is, when the nutritional composition is in a liquid or semi-solid form, it is easy to administer or ingest, and is more suitable for nursing food and medical food.
• the term "liquid” as used in the present embodiment means that the nutritional composition does not retain its shape and spreads uncoordinated when left standing on a flat surface.
• the nutritional composition when the nutritional composition is in a "semi-solid form", it means that it is neither a solid that keeps its shape at room temperature nor a liquid, but a form that is intermediate between a liquid and a solid, and that flows while being united. Say.
• the pH of the nutritional composition of the present embodiment is preferably in the range of 5.5 to 7.5, more preferably in the range of pH 5.7 to 7, and pH 5.9 to 6.8. A range is more preferred.
• the pH of the nutritional composition is set within the above range, a decrease in viscosity and syneresis when mixed with simulated gastric juice are suppressed, and a nutritional composition with smooth physical properties tends to be obtained.
• the nutritional composition of the present embodiment preferably has a viscosity at 25° C. of 5 to 50,000 mPa ⁇ s, more preferably 10 to 25,000 mPa ⁇ s, and even more preferably 100 to 10,000 mPa ⁇ s. , 500 to 5000 mPa ⁇ s.
• the viscosity of the nutritional composition is set within the above range, there is a tendency for easy administration by tube feeding.
• the nutritional composition of the present embodiment preferably has a viscosity of 700 to 50000 mPa s, more preferably 800 to 20000 mPa s, more preferably 900 to 5000 mPa s when mixed with simulated gastric juice. is more preferable.
• gastroesophageal reflux and diarrhea tend to be suppressed.
• Y/X is preferably 0.8 or more. It is more preferably 0.9 or more, and even more preferably 1.0 or more. When Y/X is set within the above range, gastroesophageal reflux and diarrhea tend to be suppressed.
• the above viscosity was measured using a Brookfield viscometer, rotor No. 6 is rotated at 12 rpm, and the value is obtained 2 minutes after the start of rotation.
• the viscosity of the simulated gastric juice mixture is the value measured after adding 60 mL of the nutritional composition to 36 mL of simulated gastric juice, stirring, and allowing the mixture to stand at room temperature for 30 minutes.
• casein (A), collagen (B), and the total protein (D), which is the sum of proteins other than these preferably comprise 3% by mass or more of the entire nutritional composition, and 4 to 15% by mass. %, more preferably 5 to 10% by mass.
• this configuration has a shape that is easy to ingest, and since it uses casein and collagen as protein sources, it is nutritionally superior to conventional nutritional compositions using soybean protein as a protein source. Moreover, since the viscosity does not significantly decrease under acidic conditions (when mixed with gastric juice), the occurrence of gastroesophageal reflux and diarrhea can be suppressed. Furthermore, since it is excellent in long-term storage stability, it can be preferably used as food for nursing care and medical food.
• Such a nutritional composition can be produced, for example, as follows. That is, the nutritional composition of the present embodiment can be obtained by preparing ingredients for the nutritional composition and mixing them at once. Moreover, the prepared materials may be added in several batches and mixed, or several kinds of materials may be separately mixed and mixed together.
• the nutritional composition of the present embodiment can be made storable for a longer period of time by heat sterilization or the like after being filled in a container. Since the hygienic nutritional composition that has been sterilized in advance can be provided in subdivided containers, there is no need to prepare the composition for errands, and the burden on caregivers and the like can be reduced. Examples of the container include spout bags, pouch packs, plastic containers, metal cans, glass containers, and the like.
• the numerical values shown as the composition of the nutritional composition indicate the mass of each material itself.
• the "ratio of each protein to the total protein (% by mass)” indicates values calculated from the protein content ratio (% by mass) of each material shown in Table 1 below.
• materials other than those shown in Table 1 below are materials commonly used in nutritional compositions, and ion-exchanged water is used as the water.
• xanthan gum a and xanthan gum b have different molecular weights (xanthan gum a has a smaller molecular weight).
• modified starch hydroxypropyl starch is used as modified starch a, and phosphate-crosslinked starch is used as modified starch b.
• Nutritional compositions were prepared according to the compositions shown in Tables 2-4 below. First, lipids were added to water heated to 80° C., and (A) casein, (B) collagen, carbohydrates and minerals were added and dissolved to prepare a solution. Next, separately from the solution, an agar solution is prepared by dissolving agar, (C) a thickener, a thickener other than (C), and starches in water heated to 90° C., and this agar solution and A nutritional composition was prepared by adding to the above solution together with other materials and stirring under a pressure of 60 MPa until uniform. The nutrient composition was placed in a sealed container (pouch pack) and sterilized by heating at 124° C. for 15 minutes and then used for each example and comparative example.
• Nutritional compositions were prepared according to the compositions shown in Tables 4 and 5 below. First, lipids were added to water heated to 80° C., and (A) casein, (B) collagen, carbohydrates and minerals were added and dissolved to prepare a solution. Next, separately from the solution, an agar solution is prepared by dissolving agar, (C) a thickener, a thickener other than (C), and starches in water heated to 90° C., and this agar solution and A nutritional composition was prepared by adding to the above solution together with other materials and stirring under a pressure of 60 MPa until uniform. The nutritional composition was placed in a sealed container (spout bag), heated at 124° C. until the center of the container reached an F value of 8, and sterilized, and then used in each example.
• the viscosity of the sterilized nutritional composition and the viscosity of the nutritional composition mixed with simulated gastric juice were measured. Further, for Examples 11 to 23 and Comparative Examples 6 and 7, the pH was also measured. Furthermore, Examples 22 and 23 were also evaluated for storage stability (viscosity after storage for 2 weeks). These results are shown in Tables 2-6 below.
• the test method and evaluation method for each item are as follows. As the simulated gastric juice, an artificial gastric juice (pH 1.2, containing 7.0 ml/L of hydrochloric acid) prepared with reference to "6.09 disintegration test method" of the Japanese Pharmacopoeia 16th Edition is used.
• Viscosity and viscosity after mixing simulated gastric juice The viscosity (X) of the nutritional composition was measured using a Brookfield viscometer. 6 was rotated at 12 rpm, and the numerical value after 2 minutes from the start of rotation was adopted. On the other hand, the viscosity (Y) after mixing the simulated gastric juice was measured by adding 60 mL of the nutritional composition to 36 mL of the simulated gastric juice, stirring slowly until uniform, and standing at room temperature for 30 minutes. The viscosity was measured in the same manner as above.
• This nutritional composition has a shape that facilitates administration or intake, and is useful as a nutritional composition capable of efficiently absorbing nutrients.

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