JP5032110B2 - Pet food and manufacturing method thereof - Google Patents

Description

  The present invention relates to a pet food having an effect of preventing and improving obesity and a method for producing the same.

  Due to the recent pet boom, the number of pets has increased and various problems relating to pet health have been pointed out. One of them is an increase in joint diseases, heart diseases, diabetes, liver diseases and the like due to pet obesity. In addition, it has been pointed out that there are many obese dogs and cats who are out of hormonal balance after castration and birth control.

  Under such circumstances, many pet foods that are conscious of obesity elimination have been marketed. Most of these pet foods have a reduced amount of oil or calories per weight. Many proposals have been made from the viewpoint of treating obesity and the like that contain a drug having an effect of suppressing fat absorption or a substance having an inhibitory effect on the activity of degrading enzymes.

On the other hand, many obesity-resolving pet foods that not only contain these anti-obesity effective substances but also have been improved with a focus on the structure of pet foods have been reported. For example, a low energy density pet food with a reduced bulk density is known (see Patent Document 1). Moreover, (A) 0.1 to 50% by weight of diglyceride, (B) a sugar absorption retardant, (C) a pet food containing a carbohydrate, and the component (B) is a pet food that is a coating material, Suppresses the rapid increase in blood glucose level after meals, suppresses insulin secretion, makes it difficult for fat to be absorbed effectively, and burns fat to suppress fat accumulation in the body and is excellent in preventing and improving obesity Is also known (see Patent Document 2). Furthermore, a technique (Patent Document 3) is also known in which barley, high amylose corn, and sorghum are contained in pet food at a certain ratio as flour for adjusting blood glucose response after meals.
On the other hand, it is also known that insulin secreted from the pancreas promotes sugar uptake in adipocytes, promotes fat synthesis, and increases body fat by inhibiting lipolysis (non-patent literature). 1).
Japanese National Patent Publication No. 2006-507072 Japanese Patent Laid-Open No. 2002-306088 Japanese translation of PCT publication No. 2002-510474 Insulin action in skeletal muscle and adipocytes (Nippon Medical Journal Vol. 123, No. 11 / June 1, 2000)

  However, pet foods that are simply reduced in bulk density have no change in calories per weight. Therefore, if the diet weight is the same, the obesity-relieving effect cannot be expected at all. Rather, pet food with reduced bulk density has problems caused by reduced bulk density (for example, the point where the oxidation rate of pet food is accelerated and the storage takes place). It is.

  In addition, (A) 0.1 to 50% by weight of diglyceride, (B) a sugar absorption delaying agent, and (C) a pet food containing a carbohydrate, wherein the component (B) is a coating material. Although this agent has an excellent effect on obesity prevention and improvement by using an agent, this pet food has room for further improvement with respect to inhibition of insulin secretion.

  An object of the present invention is to provide a pet food that can suppress the rapid increase in blood glucose level after meals, suppress insulin secretion, and can achieve fat accumulation suppression in the body without impairing palatability. .

  Therefore, the present inventors focused on the fact that dogs and cats, etc. have less chewing numbers than humans, and that they quickly squeeze, adding to the structure of pet food and improving the carbohydrates and fats in pet food. It was decided to make a difference in dissolution timing. As a result, it is possible to make a difference between the absorption time of carbohydrates and the absorption time of fat, shifting the timing of the increase in blood glucose level and insulin secretion, and the rapid increase in blood glucose level after meals. It was found that the secretion of insulin can be suppressed and the accumulation of fat in the body can be suppressed.

  That is, the present invention provides a pet food comprising (A) a carbohydrate-containing part in which the content of fats and oils is less than 5% by weight, and (B) an oil-and-fat containing part in which the content of carbohydrates is less than 2% by weight. It is to provide.

If it is the pet food of this invention, it is possible to make a difference in the melt | dissolution timing of the carbohydrate and fat in pet food. As a result, there is a difference between the absorption time of carbohydrates and the absorption time of fats, and the rapid increase in blood glucose level after meals is suppressed. Even if the weight of food is given, the effect of suppressing fat accumulation in the body can be obtained. Such a pet food of the present invention has good palatability because it is not necessary to reduce the amount of fat added, and has effects such as prevention of heart disease, joint disease, diabetes prevention and the like caused by obesity. Can demonstrate.
Moreover, if it is the manufacturing method of the pet food of this invention, it is possible to manufacture pet food as above-mentioned corresponding to pets of various kinds and sizes as appropriate.

  The pet food of the present invention comprises a carbohydrate-containing part (A) in which the content of fats and oils is less than 5% by weight and an oil-and-fat containing part (B) in which the content of carbohydrates is less than 2% by weight. That is, in the pet food of the present invention, the carbohydrates and fats and oils include a carbohydrate-containing part (A) in which the content of fats and oils is less than 5% by weight and a fat and oil-containing part in which the content of carbohydrates is less than 2% by weight. (B) is separated and blended. Therefore, there is a difference in the dissolution timing of carbohydrates and fats in pet food, resulting in a difference between the absorption time of carbohydrates and the absorption time of fats, suppressing the rapid increase in blood glucose level after meals. Thus, the secretion of fat in the body can be suppressed without suppressing the secretion of insulin and without sacrificing the palatability.

  In the pet food according to the present invention, the ratio of the carbohydrate-containing part (A) in which the fat content is less than 5% by weight and the fat-containing part (B) in which the carbohydrate content is less than 2% by weight is various. For example, (A) preferably accounts for 10 to 90% by weight, preferably 20 to 80% by weight, particularly 30 to 70% by weight in the pet food. On the other hand, (B) occupies 10 to 90% by weight, preferably 20 to 80% by weight, particularly 30 to 70% by weight in the pet food.

  In the pet food of the present invention, there are a carbohydrate-containing part (A) in which the content of fats and oils is less than 5% by weight and an oil-and-fat containing part (B) in which the content of carbohydrates is less than 2% by weight. The form should just be the said hydrocarbon content part (A) and the said fats and oils content part (B) isolate | separated and mix | blended, for example, the form in which the grain of (B) is scattered in (A), A form in which the grains of (A) are scattered in (B), a form in which (A) and (B) form a layered structure, a form in which (A) is partially or entirely covered by (B), ( B) may take any form such as partly or wholly covered by (A), but preferably (A) is (B) so that there is a difference in the dissolution timing of carbohydrates and fats. Preferred is a form completely covered by or a form fully covered by (A).Regarding the size of the hydrocarbon-containing part (A) and the fat-and-oils containing part (B), such as the particle size and the layer thickness, there is a difference between the absorption time of carbohydrates and the absorption time of fats. What is necessary is just to design suitably so that it can be made to generate | occur | produce, and it can change suitably according to the specific component of a hydrocarbon containing part (A) or the said fats and oils containing part (B).

  The carbohydrate-containing part (A) and / or the fat / oil-containing part (B) may further contain protein from the point of nutritional balance of the pet, and the carbohydrate-containing part (A) further contains a sugar absorption inhibitor. When it is contained, absorption of sugars produced by decomposition of carbohydrates and the like into the body is inhibited, which is preferable from the viewpoint of obesity prevention / amelioration effect.

  Examples of the fats and oils used in the pet food of the present invention include safflower oil, olive oil, cottonseed oil, corn oil, rapeseed oil, soybean oil, palm oil, sunflower oil, linseed oil, sesame oil, lard, beef tallow, fish oil, milk fat and the like. However, it is not limited to those blended as fats and oils, and includes oils and fats contained in other plant raw materials or animal raw materials. Oils and fats are preferably contained in the pet food of the present invention in an amount of 8 to 25% by weight, more preferably 10 to 20% by weight, particularly 12 to 18% by weight from the viewpoint of obesity prevention effect and ingestion.

  The pet food of the present invention may contain 20% or more of diacylglycerol in the total fats and oils. In addition, diacylglycerol is preferably contained in an amount of 25 to 90% by weight, more preferably 30 to 85% by weight in the total fats and oils from the viewpoint of suppressing the increase in blood neutral fat concentration after meals and preventing obesity.

  In diacylglycerol, 80 to 100% of the constituent fatty acids are preferably unsaturated fatty acids (UFA), more preferably 90 to 100%, further 93 to 100%, particularly 93 to 98%, and particularly 94 to 98%. This is preferable from the viewpoints of inhibiting blood triglyceride concentration after meals and preventing obesity. Here, it is preferable that carbon number of this unsaturated fatty acid is 14-24, and also 16-22.

  Among the fatty acids constituting diacylglycerol, the content of oleic acid is 20 to 65%, more preferably 25 to 60%, particularly 30 to 50%, and particularly 30 to 45% in terms of anti-obesity effect and ingestion. preferable.

  Among the fatty acids constituting diacylglycerol, the content of linoleic acid is 15 to 65%, more preferably 20 to 60%, particularly 30 to 55%, especially 35 to 50%, in terms of anti-obesity effect and ingestion. preferable. Furthermore, from the viewpoint of oxidation stability and anti-obesity effect, the content mass ratio of linoleic acid / oleic acid in diacylglycerol is 0.01 to 2.0, more preferably 0.1 to 1.8, especially 0.3 to 1. .7 is preferable.

  Among the fatty acids constituting diacylglycerol, the content of linolenic acid is less than 15%, more preferably 0 to 13%, especially 1 to 10%, and especially 2 to 9%. Anti-obesity effect, intake and oxidative stability From the viewpoint of sex. As linolenic acid, α-linolenic acid and γ-linolenic acid are known as isomers, and α-linolenic acid is preferable.

  Of the fatty acids constituting diacylglycerol, the content of saturated fatty acid (SFA) is preferably less than 20%, more preferably 0 to 10%, further 0 to 7%, especially 2 to 7%, especially 2 to 6%. It is preferable from the viewpoints of obesity prevention effect, ingestion, and oxidative stability. As the saturated fatty acid, those having 14 to 24 carbon atoms, particularly 16 to 22 carbon atoms are preferable, and palmitic acid and stearic acid are particularly preferable.

  In the fatty acid constituting diacylglycerol, the content of fatty acid having 12 or less carbon atoms is preferably 5% or less from the viewpoint of flavor and ingestion, more preferably 0 to 2%, particularly 0 to 1%, It is particularly preferred not to include it. The remaining constituent fatty acids preferably have 14 to 24 carbon atoms, particularly 16 to 22 carbon atoms.

  In addition, from the viewpoint of inhibiting the increase in blood insulin concentration after meals and preventing obesity, the proportion of 1,3-diacylglycerol in diacylglycerol is 50% or more, more preferably 52 to 100%, further 54 to 90%, particularly It is preferred to use diacylglycerol which is 56-80%.

  Although diacylglycerol may contain what is contained in the above-mentioned natural fats and oils, in order to adjust the content of diacylglycerol, esterification reaction of fatty acid derived from fats and oils and glycerin, fats and oils and glycerin It is preferable to blend those obtained by transesterification with Although diacylglycerol can be obtained by a chemical reaction using an alkali catalyst or the like, it can be obtained by a mild reaction through an enzyme such as a 1,3-position selective lipase. It is preferable in terms of stability and palatability.

  The oil and fat in the pet food of the present invention may contain triacylglycerol, and may contain some monoacylglycerol, free fatty acid and the like. These include those contained in the fats and oils contained in the produced diacylglycerol-containing fats and oils, plant raw materials to be blended, or animal raw materials in addition to those contained in the natural fats and oils described above.

  As the carbohydrate used in the pet food of the present invention, in particular, when it is at least one carbohydrate source selected from modified starch, high amylose starch, corn, barley and sorghum, postprandial glucose level increase suppression, postprandial insulin It is preferable from the viewpoints of concentration increase suppression, obesity prevention or suppression effect, weight gain suppression effect, and ingestion. The carbohydrate is preferably contained in the pet food of the present invention in an amount of 10 to 90% by weight, more preferably 20 to 80% by weight, particularly 30 to 70% by weight.

  The processed starch in the pet food of the present invention is an ordinary starch such as waxy corn starch, corn starch, wheat starch, rice starch, sticky rice starch, potato starch, honeydew starch, tapioca starch, sago starch, etc. It has been applied or chemically modified. The content of the modified starch is 3% or more, more preferably 3 to 30%, especially 3 to 20% in the carbohydrate. Economic efficiency, suppression of postprandial blood glucose level increase, postprandial insulin concentration increase, anti-obesity effect From the viewpoint of ingestion and stool condition, it is preferable.

  Specifically, acetylated starch, octenyl succinylated starch, hydroxypropylated starch, acetylated adipic acid crosslinked starch, acetylated phosphate crosslinked starch, acetate starch, oxidized starch, phosphate monoesterified phosphate crosslinked starch, phosphorylated Starch, phosphate cross-linked starch, hydroxypropylated phosphate cross-linked starch, etc., can be manufactured from starch in a simple process with high purity and relatively inexpensive, suppression of postprandial blood glucose level increase, postprandial insulin concentration increase Acetylated starch, octenyl succinylated starch, and hydroxypropylated starch are preferred from the viewpoints of suppression, anti-obesity effect, food intake, and safety.

  The acetylated starch can be obtained by acetylating starch or modified starch by a conventional method. Specifically, it can be obtained by reacting acetic anhydride or vinyl acetate with starch. Moreover, Z-700 (from tapioca, acetylation, Nippon Star Chemical Co., Ltd.), MT-01B (from tapioca, acetylation, Nippon Food & Chemicals), ADIX-H (from waxy corn, acetylation, Nippon Food & Chemicals), Mapus Commercially available products such as # 449 (derived from waxy corn, acetylated, Nippon Food & Chemicals) can also be used. As the degree of acetylation, the acetyl value (number of acetyl groups per anhydroglucose residue in starch) is preferably 0.001-1, more preferably 0.005-0.5, Furthermore, it is preferable that it is 0.01-0.1.

  Octenyl succinylated starch can be obtained by octenyl succinic oxidation of starch or modified starch by a conventional method. Specifically, it can be obtained by reacting octenyl succinic anhydride with starch. Commercially available products such as Amycol Nyuka (derived from tapioca, octenyl succinic acid oxidation, Nippon Star Chemical Co., Ltd.) can also be used. As the degree of octenyl succinic oxidation, the octenyl succinic acid value (the number of octenyl succinic acid groups per anhydroglucose residue in starch) is preferably 0.001-1, more preferably 0.005-0.5. Yes, and preferably 0.01 to 0.1.

  Hydroxypropylated starch can be obtained by hydroxypropylating starch or modified starch by a conventional method. Specifically, it can be obtained by reacting propylene oxide with starch. National Frigex (from tapioca, National Starch and Chemical), National 1658 (from Corn, National Starch and Chemical), Therm Flow (from Waxy Corn, National Starch and Chemical), Thermtex (from Waxy Corn, National Commercial products such as Starch and Chemical Co.) can also be used. As the degree of hydroxypropylation, the degree of substitution (number of hydroxypropyl groups per anhydroglucose residue in starch) is preferably 0.001 to 1, more preferably 0.05 to 0.5. Yes, and preferably 0.1 to 0.3.

  Moreover, a modified starch is good also as another modified starch by combining another processing process, respectively. As processing that can be combined, esterification treatment such as acetic acid and phosphoric acid, etherification treatment by hydroxypropylation, carboxymethyl etherification, trimetaphosphate, hexametaphosphate, phosphorus oxychloride, adipic acid, epichlorohydrin, etc. Crosslinking treatment using a conventional crosslinking agent, oxidation treatment, acid treatment, bleaching treatment, wet heat treatment, heat treatment, enzyme treatment and the like may be mentioned, and at least one kind of them may be combined. Of these, esterification treatment is preferred, and phosphorylation treatment, particularly phosphoric acid crosslinking treatment is preferred. As the degree of phosphorylation treatment, the bound phosphorus content is in the range of 0.0001 to 2%, but 0.0001 to 0.5%, and further 0.0001 to 0.2% is the food intake etc. From the point of view, it is preferable.

  High amylose starch is starch having an amylose content of 40 to 99%, and in particular, high amylose corn starch, Glacier AC38 of hexagonal barley, su2 corn and the like. As commercial products, high amylose corn starch amylomaize V (amylose content 50-60%), amylomaise VI (amylose content 60-70%), amylomaise VII (amylose content 70-80%) or more manufactured by Nippon Food Processing Co., Ltd. , High amylose corn starch, etc., manufactured by NIPPON CHEMICAL CO., LTD.

These high amylose starches contain 3% or more, more preferably 3 to 30%, especially 3 to 20% in carbohydrates. Economical effect, suppression of postprandial blood glucose level increase, postprandial insulin concentration increase, anti-obesity effect From the viewpoint of ingestion and stool condition, it is preferable.
Corn means normal corn, but includes not only corn flour made from this, but also corn starch. Corn is preferably contained in the carbohydrate source in an amount of 3% or more, more preferably 3 to 60%, particularly 5 to 50% from the viewpoints of economy, anti-obesity effect, ingestion and stool condition.

  The barley may be either Nijo barley or Rojo barley, including mixtures thereof used for feed. Barley contains 5% or more, more preferably 5 to 80%, especially 10 to 70% in the carbohydrate source. Economical, postprandial blood glucose level increase suppression, postprandial insulin concentration increase suppression, obesity prevention effect, intake and It is preferable in terms of the state of stool.

  Sorghum is a plant belonging to the family Gramineae, in addition to what is called Koryang, also known as bloom corn, also known as broom sorghum, sweet sorghum, also known as sorghum, and grain sorghum, also known as milo. . Sorghum is contained in the carbohydrate source at 3% or more, more preferably 3 to 60%, especially 5 to 50%. Economic efficiency, suppression of postprandial blood glucose level increase, postprandial insulin concentration increase, anti-obesity effect, ingestion And from the viewpoint of the state of stool.

  The pet food of the present invention further includes monosaccharides, oligosaccharides, polysaccharides, dietary fibers, starches and the like as carbohydrate sources. As starches, for example, waxy corn, corn, sorghum, barley, wheat, rice, sticky rice, potato, honeydew, tapioca, sago and the like are preferable. Dietary fiber refers to materials that cannot be decomposed by animal digestive enzymes, including water-insoluble dietary fiber and water-soluble dietary fiber. Specific examples of the former include beet pulp, beet fiber, and peanut containing cellulose, hemicellulose, etc. Fiber, chicory root, alfalfa meal, wheat bran and the like, and specific examples of the latter include galactooligosaccharide, fructooligosaccharide, soybean oligosaccharide, xylo-oligosaccharide, dairy oligosaccharide, raffinose, lactulose, palatinose oligosaccharide, nigerooligosaccharide, Indigestible oligosaccharides such as gentio-oligosaccharides, polydextrose, indigestible dextrin, guar gum enzyme degradation product, psyllium seed coat, glucomannan, agar, water-soluble soybean polysaccharide, water-soluble corn fiber, inulin, carboxymethylcellulose, alginic acid, etc. And the like. Among these, beet pulp containing both water-insoluble dietary fiber and water-soluble dietary fiber is preferable from the viewpoints of economy, anti-obesity effect, ingestibility, and stool condition. In addition, among these carbohydrate sources, those that are not particularly involved in the promotion of insulin secretion, such as part of dietary fiber, may be contained in the fat and oil-containing part (B).

  In the pet food of the present invention, it is preferable to further contain a protein (animal or plant protein) from the viewpoints of obesity prevention effect, ingestion, and nutritional balance. preferable. Examples of animal proteins include milk proteins such as casein, but animal meat proteins are preferred from the standpoint of obesity prevention and ingestion. Such animal meat proteins include cattle, pigs, sheep, rabbits, kangaroos and other meats and beef, and by-products and processed products thereof; chickens, turkeys, quail, etc., and by-products and processed products thereof. Fish meat such as fish and white fish, and by-products and processed products thereof; rendering of the above-mentioned raw materials such as meat meal, meat bone meal, chicken meal, fish meal and the like. It is preferable that the animal or vegetable protein is contained in the pet food of the present invention in an amount of 10 to 90% by weight, further 15 to 70% by weight, particularly 20 to 50% by weight in terms of dry matter.

Examples of the sugar absorption inhibitor contained in the pet food of the present invention include a plant that inhibits sugar absorption from the intestinal tract, the plant extract or the plant-derived component, specifically, drying of Gymnema sylvestre leaves. Examples include powders or extracts, dry powders or extracts of yacon leaves, dry powders or extracts of Kotarahim, phenylglucooxide compounds, dry powders or extracts of jujube leaves, and taranoxaponins. Here, examples of the phenylglucooxide compound include tachyoside and arbutin, and examples of the taranoxaponins include oleate 3-o {β-D-glucopyracyl (1 → 3)-[β-D-xylopyranosyl (1 → 2). ] -Α-L-arabinopyranoside}. These sugar absorption inhibitors are preferably contained in the pet food in an amount of 0.01 to 10% by weight, preferably 0.1 to 5% by weight, particularly 0.5 to 3% by weight. At this time, when the sugar absorption inhibitor is an extract, it is contained as a dry solid.
In addition, bran, potatoes, vegetables, gelling agents, shape-retaining agents, pH adjusters, seasonings, preservatives, nutritional supplements, vegetable extracts, plant sterols, vitamins commonly used in pet food , Minerals, emulsifiers and the like may be added to the pet food of the present invention. Among these additives, those particularly involved in promoting insulin secretion are contained in the carbohydrate-containing part (A), and the fat-containing part (B). It is preferable not to contain.

  Examples of the emulsifier include emulsifiers commonly used in foods and feeds. For example, glycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, sucrose fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, protein system such as sodium caseinate, saponin system such as soybean saponin, soybean Examples include phospholipids such as lecithin. Since the emulsifier is involved in the promotion of insulin secretion, it is preferably contained in the carbohydrate-containing part (A).

  The plant sterol is preferably contained in an amount of 0.1% by weight or more, particularly 0.5% by weight or more of the pet food in terms of cholesterol lowering effect. Moreover, the upper limit of plant sterol content should just be the range of 0.1-30 weight%. Examples of plant sterols include free forms such as α-sitosterol, β-sitosterol, stigmasterol, campesterol, α-sitostanol, β-sitostanol, stigmasteranol, campestanol, and cycloartenol, and the like. And fatty acid esters, ferulic acid esters, cinnamic acid esters and the like.

The vitamins include vitamins A, B ₁ , B ₂ , D, E, niacin, pantothenic acid, carotene and other vitamins in a vitamin mix of 0.1 to 2% by weight, and the minerals are calcium. Minerals such as phosphorus, sodium, potassium, and iron may be contained in an amount of 0.1 to 5% by weight as a mineral mix.

  In addition, in the carbohydrate-containing part (A) and the oil-and-fat containing part (B) of the pet food of the present invention, an enteric agent is added to either one in order to increase the difference in the absorption time in the body of the carbohydrates and oils in the pet food. (Enteric component) can be blended, and either one may be provided with an enteric portion, and in particular, either one may be coated with the enteric portion. In this case, the thickness of the enteric part (D) coating can be appropriately set so that a difference can be produced between the in-vivo absorption time of the carbohydrate and the in-body absorption time of the fat. Examples of the enteric agent used in the pet food of the present invention include methacrylic acid copolymer LD, hydroxypropylmethylcellulose phthalate (HPMCP), cellulose acetate phthalate (CAP), methacrylic acid / acrylic acid copolymer, methacrylic acid / methyl methacrylate. Examples thereof include polymers that dissolve at a pH of 5 or higher, such as copolymers. Furthermore, agar, gelatin, corn protein / zein, etc. can be used. These enteric agents are preferably contained in the pet food in an amount of 0.1 to 5% by weight, preferably 0.5 to 5% by weight, particularly 0.5 to 3% by weight.

  In particular, when the fat / oil-containing part (B) is covered with the carbohydrate-containing part (A) or when the carbohydrate-containing part (A) is covered with the fat / oil-containing part (B), the pet food of the present invention is a pet There is a big difference in the dissolution timing of carbohydrates and fat in the food, resulting in a difference between the carbohydrate absorption time and the fat absorption time, and insulin secretion is suppressed and fat accumulation in the body An inhibitory effect is obtained.

  In particular, when the carbohydrate-containing part (A) is covered with the fat / oil-containing part (B), the carbohydrate-containing part (A), which is the core part, is exposed and decomposed after the decomposition of the fat / oil-containing part (B) proceeds. Therefore, the decomposition of carbohydrates into sugars by amylase or the like is delayed, and the amount of sugar absorbed in the body also tends to decrease.

  When the carbohydrate-containing part (A) is coated with the enteric part (D) or the fat-containing part (B) is coated with the fat-containing part (B), or the fat-containing part (B) is coated with the enteric part (D) Even when things are coated with the carbohydrate-containing part (A), the respective core part is not completely absorbed in the upper part of the stomach and small intestine. That is, the presence of the enteric part (D) and the outer part delays the decomposition or absorption of the core part, resulting in incomplete absorption of the core part component in the upper part of the stomach and small intestine. In the case of the part (A), carbohydrates that are usually almost digested and absorbed in the stomach and upper part of the small intestine are digested and absorbed over the middle part and lower part of the small intestine, so that the transfer of sugar to the blood is slowed and insulin secretion is suppressed, As a result, fat accumulation in the body is suppressed.

  In the pet food of the present invention, it is preferable that the palatability improver is present on the outermost side from the viewpoint of improving pet palatability. Here, as a palatability improver, pet food flavors, for example, butter flavor, milk flavor, cheese flavor, yogurt flavor as dairy flavor, pork flavor, beef flavor, chicken flavor, and seafood flavor as meat flavors Examples include oyster flavor, scallop flavor, and shrimp flavor. These flavors may be natural extracts or concentrates, or those obtained by enzymatic treatment. A synthetic flavor may also be used. The content of the palatability improver is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.5 to 3% by mass in the pet food of the present invention.

  The shape of the pet food of the present invention is not particularly limited, but the size of the pet food causes a difference in the dissolution timing of carbohydrates and fats, and from the viewpoint of causing a difference in the absorption time of carbohydrates and fats in the body, the size of the pet food is one time. A size that can be swallowed by chewing or a size that can be swallowed as it is is preferable. The preferred size varies depending on the type and size of the pet. For example, regarding the size of a dog, generally there are three main categories: small dogs (less than 10 kg: papillon, pug, etc.), medium-sized dogs (11 kg to 20 kg). : Beagle, etc.) and large dogs (20 kg or more: Retriever, etc.). Small dogs have a short diameter of 5 mm x long diameter of 6 mm, medium dogs have a short diameter of 5 mm x long diameter of 10 mm, and large dogs of about 20 kg or more have a spherical shape of 10 mm in diameter. Or if it is an elliptical shape etc., the ratio which rounds pet food increases and it is preferable.

  The present invention also provides a pet food comprising a carbohydrate-containing part (A) having a fat content of less than 5% by weight and a fat-containing part (B) having a carbohydrate content of less than 2% by weight. A production method, characterized in that (a) a carbohydrate-containing part (A) is formed into a granular shape, and then (b) an oil-containing part is adhesively coated with a binder on the carbohydrate-containing part formed into a granular shape. The present invention provides a method for producing pet food. In addition, the thickness of an oil-and-fat containing part can be suitably adjusted by adhesive-coating the further oil-and-fat containing part to a fat and oil containing part with a binder. In addition, the process (a) which coat | covers the shape | molded carbohydrate containing part further with an enteric part may be implemented before a process (b).

  The present invention still further provides a pet food comprising a fat-containing part (B) having a carbohydrate content of less than 2% by weight and a carbohydrate-containing part (A) having a fat content of less than 5% by weight. (A ′) The oil-and-fat containing part is formed into a granule, and (b ′) the carbohydrate-containing part (A) is bonded to the oil-and-fat containing part (B) formed into a granule with a binder. The present invention provides a method for producing a pet food characterized by coating. In addition, the thickness of the carbohydrate-containing part can be adjusted as appropriate by adhesively coating the carbohydrate-containing part with a further carbohydrate-containing part with a binder. In addition, the step of coating the oil-and-fat containing part formed in the step (a ′) with an enteric part may be performed before the step (b ′).

  As described above, in the method for producing a pet food of the present invention, the step of adhesively coating the fat-containing part with a binder other than the carbohydrate-based binder on the granular carbohydrate-containing part, By repeating the process of adhesively coating the carbohydrate-containing part to the containing part with a binder other than the oil-based binder, the carbohydrate-containing part is free of carbohydrates and the fat-and-fat is added to the carbohydrate-containing part. The thickness can be adjusted as appropriate without mixing. As a result, it is possible to form a covering having a thickness suitable for pets of various types and sizes. In addition, as the binder for the pet food of the present invention, CMC (carboxymethylcellulose sodium) and the like are mentioned as the carbohydrate-based binder, and propylene glycol, glycerin and the like as the polyhydric alcohol-based binder or the oil-based binder. Examples of the protein binder include egg white and wheat gluten. These binders are preferably used in pet food in an amount of 1 to 60% by weight, preferably 2 to 50% by weight, particularly 3 to 40% by weight.

  Further, in the method for producing a pet food of the present invention, any method may be used as long as it does not adversely affect the pet food as a method for forming the carbohydrate-containing part or the oil-containing part as the core part. Extrusion molding using an extruder is preferred. Further, tapioca or tapioca pearl can be used as existing carbohydrate particles.

  Furthermore, the method of coating with an enteric part (enteric component), the method of attaching a binder, and the method of coating a carbohydrate component mixture or fat component mixture also have an adverse effect on pet food, enteric components and binders. Any method may be used as long as the method does not reach, but for example, spray method, drip method, rolling granulation and the like are preferable.

  Furthermore, when the palatability improver is attached to the outermost part, for example, when the flavor digest is attached, any method may be used as long as the attachment method does not adversely affect the pet food. The method of spraying an agent is mentioned.

  Furthermore, regarding the various conditions in the method for producing a pet food of the present invention, any method may be used as long as it does not adversely affect the pet food.

  In particular, in the method for producing pet food of the present invention, it is particularly effective in the heating step to produce in an atmosphere substituted with an inert gas such as nitrogen while degassing for the purpose of suppressing oxidation of fats and oils. Therefore, it is preferable.

  As described above, the pet food of the present invention has the effect of preventing or suppressing pet obesity and the effect of suppressing weight gain. Therefore, the pet food container of the present invention has an effect of preventing pet obesity, an effect of suppressing pet obesity, an effect of suppressing pet weight gain, It is suitable for pets that are worried about obesity. "

Example 1
As a carbohydrate source constituting the core portion, 1.6 g of black tapioca pearl was used. Next, 0.2 g of chicken meal was coated around tapioca pearl using egg white (dry weight 0.1 g) which is a protein-based binder. After the egg white was sufficiently dried, 0.2 g of diacylglycerol-containing fat was absorbed into the protein coating layer.

The nutritional composition of the sample thus obtained was analyzed.
Carbohydrate layer: 90% carbohydrate, 2% fat, 8% moisture, 0% protein
Oil layer: 55% protein, 20% oil, 10% ash, 15% moisture, 0% carbohydrate

Further, this was placed in a warm water tank assuming the stomach and small intestine, and a disintegration test was conducted. The observation records at that time are shown below.
Up to 20 minutes from the start of the test, the outer fat layer gradually peeled off from the outside. At this time, the amount of oil and fat that had fallen off could be confirmed by the increase in the amount of oil film on the water surface. After 20 minutes, the inner carbohydrate layer began to be confirmed, and after 25 minutes, only the carbohydrate layer was observed.

The remaining carbohydrate layer was dried and analyzed.
Residual carbohydrate layer: carbohydrate 83.99%, fat 1.31%, moisture 13.0%, protein 0.82%, ash 0.88%

  From the above results, in the food of the configuration of the present invention, it is possible to make a difference in the time for each component to dissolve between fat and carbohydrate. As a result, there is a difference between the absorption time of carbohydrates and the absorption time of fats, suppressing the rapid increase in blood glucose level after meals, thereby suppressing insulin secretion and increasing fat accumulation in the body. It was found that it can be suppressed.

(Example 2)
Among the pet food compositions shown in Table 1, the premixed carbohydrate component or fat component constituting the core portion is adjusted to a water content of 30% by weight and then sent to a biaxial extruder, 120 ° C., 1 MPa And then extruding rapidly from the pores of the die (diameter 6 mm) and then cut to a length of 6 mm. When using an enteric component in the molded product, spray a 20% ethanol solution of the enteric component methacrylic acid copolymer LD on the molded product, and then attach the fat component with wheat gluten, which is a protein-based binder. Alternatively, when a carbohydrate component is adhesively coated with potato starch, which is a carbohydrate-based binder, and further a flavor digest is used, the flavor digest component is sprayed on the coating and dried by blowing at 70 ° C. for 5 hours.

Claims (9)

(A) a carbohydrate-containing part in which the content of fats and oils is less than 5% by weight; and
(B) A pet food comprising a fat- and-fat-containing part with a carbohydrate content of less than 2% by weight , wherein the fat-and-fat containing part (B) further contains a protein, and the carbohydrate-containing part (A) is a fat-and-fat containing part ( Pet food in a form completely covered by B).   The pet food according to claim 1, wherein the carbohydrate-containing part (A) further contains a sugar absorption inhibitor. Sugar absorption inhibitors are dry powder or extract of Gymnema sylvestre leaves, dry powder or extract of Yacon leaves, dry powder or extract of Kotarahim, phenyl glucooxide compound, dry powder or extract of jujube leaves, and taranoxaponins The pet food according to claim 2 , wherein the pet food is at least one selected from the group consisting of: The pet food according to any one of claims 1 to 3, wherein either one of the fat / oil-containing part (B) and the carbohydrate-containing part (A) is coated with an enteric part (D). The pet food according to any one of claims 1 to 4, further comprising (C) a palatability improving agent part on the outermost part of the pet food. A pet comprising a carbohydrate-containing part (A) having a fat content of less than 5% by weight and a carbohydrate content being less than 2% by weight, and being completely covered with a fat-containing part (B) containing a protein A method for manufacturing food,
(A) shaping the carbohydrate-containing part into granules, then
(B) A method for producing a pet food, wherein an oil-and-fat-containing part is adhesively coated with a binder on a granular carbohydrate-containing part. It is characterized in that the thickness of the oil-containing part is adjusted by adhesively coating an additional oil-containing part to the oil-containing part, and the binder is a carbohydrate-based binder in the adhesion between the oil-containing parts. The method for producing a pet food according to claim 6 , which is other than the above. Furthermore, the manufacturing method of the pet food of Claim 6 which attaches a process (c) palatability improvement agent to a coating. The method for producing a pet food according to claim 6 , wherein the step of coating the carbohydrate-containing part formed in step (a) with the enteric part is carried out before step (b).