JP6334845B2 - Pet food for obesity risk reduction and pet obesity risk reduction method - Google Patents

Description

  The present invention relates to a pet food for reducing obesity risk and a method for reducing obesity risk of pets. More specifically, the present invention relates to a pet food or the like that contains a predetermined amount of water-soluble fibers and / or insoluble fibers and can reduce the risk of pet obesity.

  Obesity and diabetes due to lack of exercise and excessive intake of pets are serious problems for pet owners. Dietary fiber intake is known to reduce blood cholesterol and suppress blood sugar levels, and attempts to prevent obesity and diabetes by providing pet food containing a certain amount or more of dietary fiber. ing.

  As pet foods for preventing obesity containing dietary fiber, for example, those using herbal medicines (see Patent Document 1) and those containing a reduced amount of tyrosine (see Patent Document 2) have been proposed.

JP-A-8-191668 Special table 2007-512848 gazette

  A pet food containing a certain amount or more of dietary fiber has a problem that the pet's palatability is reduced, and diarrhea, loose stool or increased stool volume is caused because it does not match the digestive ability of the pet.

  Therefore, a main object of the present invention is to provide a dietary fiber-containing pet food that can effectively prevent pet obesity without causing a decrease in palatability or abnormal stool.

In order to solve the above-mentioned problems, the present invention provides a water-soluble fiber in a dry matter of 1.5 to 2.5% by dry matter based on the total weight, and 15 to 25 mass based on the weight of the fiber containing water-soluble fiber and insoluble fiber. % Pet food for obesity risk reduction is provided.
This obesity risk reducing pet food suppresses post-meal insulin secretion and neutral fat absorption, and is therefore effectively fed to pets (particularly, healthy cats) to reduce obesity risk.
This pet food for reducing obesity risk preferably contains 7 to 10% by mass of insoluble fiber as a dry matter with respect to the total weight.
Moreover, this pet food for reducing obesity risk contains 22 to 45% by mass of protein, 8 to 30% by mass of lipid, 4 to 10% by mass of ash, and 0 to 12% by mass of water with respect to the total weight. Is preferred.

  In the present invention, “pet food” refers to feed provided to pets (companion animals). A pet is an animal that is raised by a human and lives with a human, and the type of the pet is not particularly limited.

  According to the present invention, a dietary fiber-containing pet food that can effectively prevent obesity of a pet without causing a decrease in palatability or abnormal stool is provided.

It is a flowchart of the Prosky modified method. It is a flowchart of the filtration method. It is a graph which shows the change of the blood insulin density | concentration after pet food intake (Test Example 1). It is a graph which shows the change of the blood triglyceride density | concentration after feeding pet food (Test Example 1).

  Hereinafter, preferred embodiments for carrying out the present invention will be described. In addition, embodiment described below shows an example of typical embodiment of this invention, and, thereby, the range of this invention is not interpreted narrowly.

1. Formulation of Pet Food The present inventors examined the influence of the content of water-soluble fiber in pet food on blood insulin concentration and blood neutral fat concentration after feeding. As a result, it has been found that pet food containing a certain amount or more of water-soluble fiber suppresses postprandial insulin secretion and neutral fat absorption without causing stool abnormalities.

  Based on the above knowledge, the pet food for reducing obesity risk according to the present invention is 1.5 to 2.5% by mass of dry matter of water-soluble fiber based on the total weight, based on the fiber weight including water-soluble fiber and insoluble fiber. It is characterized by containing 15-25 mass%.

  Water-soluble fiber (water-soluble dietary fiber) refers to a polysaccharide that is soluble in water and fermentable. Examples of the water-soluble fiber include pectin (water-soluble), sodium alginate, carrageenan, guar gum, glucomannan, psyllium, polydextrose, indigestible dextrin, indigestible oligosaccharide, agarose, inulin and the like.

  Insoluble fiber (insoluble dietary fiber) refers to fiber insoluble in water (including polysaccharides and other than polysaccharides). Insoluble fibers include cellulose, hemicellulose, pectin (insoluble), chitin, chitosan and the like.

  The amount of fiber in the pet food can be measured by, for example, an enzyme-weight method (modified Prosky method). FIG. 1 shows a flowchart of the modified Prosky method (the calculation formulas for the amounts of water-soluble fiber, insoluble fiber, and crude fiber will be described in detail in Examples).

  By blending water-soluble fiber with 1.5% by weight or more of dry matter with respect to the total weight and 15% by weight or more with respect to the fiber weight, a pet food that can suppress insulin secretion and neutral fat absorption after feeding can be obtained. . The mechanism by which water-soluble fiber suppresses insulin secretion and neutral fat absorption is not clear, but water-soluble fiber gives viscosity to pet food mixed with digestive juice in the stomach, and neutral fat in pet food It was thought that it was difficult to be absorbed.

  On the other hand, if an excessive amount of water-soluble fiber is added, rapid fermentation occurs in the intestine, which may cause diarrhea and loose stool tendency. For this reason, it is preferable that the compounding quantity of a water-soluble fiber shall be 2.5 mass% or less with a dry matter with respect to the total weight, and 25 mass% or less with respect to fiber weight.

  Moreover, when too many insoluble fiber is mix | blended, there exists a possibility that a palatability may be reduced or the increase in the amount of stool may be caused. For this reason, it is preferable that the compounding quantity of the insoluble fiber in the pet food for obesity risk reduction which concerns on this invention shall be about 7-10 mass% with a dry matter with respect to the total weight.

  By blending the water-soluble fiber and the insoluble fiber in the above predetermined range, a pet food capable of suppressing postprandial insulin secretion and neutral fat absorption without causing a decrease in palatability or abnormal stool can be obtained. .

  The pet food for reducing obesity risk according to the present invention is a so-called comprehensive nutritional food, which is 22 to 45 mass% protein, 8 to 30 mass% lipid, and 4 to 10 mass ash with respect to the total weight (wet weight). It is preferable to contain 0 to 12% by mass of moisture and moisture.

  The pet food for obesity risk reduction according to the present invention is capable of suppressing post-meal insulin secretion and neutral fat absorption, thus preventing obesity (reducing obesity risk) and preventing the onset of diabetes, etc. Healthy animals (particularly cats) can be fed. In addition, non-healthy animals suffering from obesity or diabetes can be fed to treat obesity or diabetes or to prevent progression.

2. Next, the manufacturing method of the pet food for obesity risk reduction which concerns on this invention is demonstrated. The pet food for reducing obesity risk according to the present invention may be a dry food (generally a water content of 10% by mass or less) or a wet food with more water. Hereinafter, the case where it is set as dry food is demonstrated to an example.

(1) Granulation / drying step First, raw materials are mixed so as to satisfy the above-mentioned blending amounts of the water-soluble fiber and the insoluble fiber. The raw materials may be those generally used, and livestock meat, seafood, vegetables, cereals, starch, fats and oils, fish meal, dairy products, vitamins, minerals, water, and the like are used. Moreover, you may use fiber sources, such as beet pulp, a cellulose powder, and an apple fiber, which contain many dietary fibers as a raw material.

  An example of blending raw materials is 45-80% by weight of corn, bread crumbs, corn gluten meal, etc., 15-35% by weight of animal meal, 1-5% by weight of vitamins and minerals, coloring agents, 0.05 to 0.2% by weight of amino acids, 0.5 to 5% by weight of animal fats and oils, 0.5 to 5% by weight of preference improver, 4 to 20% by weight of fiber source and 10% by weight Add an appropriate amount of water of less than%. For example, when beet pulp is used, the blending amount of the fiber source is preferably 4 to 12% by mass, and more preferably 4 to 8% by mass.

  Among cereals, corn, flour and the like contain a lot of insoluble fibers. For this reason, when a fiber source such as beet pulp is added in addition to these, the amount of water-soluble fibers can be increased, while the amount of insoluble fibers becomes excessive. Therefore, the pet food for obesity risk reduction according to the present invention is reduced in the amount of corn and wheat flour containing a large amount of insoluble fiber in accordance with the amount of fiber source in the blending of cereals, and bread flour, rice flour and the like having a small amount of insoluble fiber. It is characterized by increasing the amount of.

  Among cereals, the amount of corn and wheat flour containing a large amount of insoluble fibers is preferably 30 to 40% by mass, and the amount of bread crumbs and rice flour and the like having few insoluble fibers is preferably 10 to 20% by mass.

  In addition, content of the water-soluble fiber and insoluble fiber in this invention is the total amount of dietary fiber derived from a fiber source, and dietary fiber derived from other raw materials, such as cereals, beans, and vegetables.

  The raw material excluding animal fats and oils is mixed with a stirrer or the like, and the mixed raw material is extruded while being heated and pressurized with an extruder (pressure extrusion granulator), cut and shaped into granules. The molded food grains are dried with a dryer. The shape and size of the hood grains are not particularly limited.

(2) Coating process After drying the dried food grain, the surface of the grain is coated with animal fat by spraying or application. For example, the adhesion amount of fats and oils such as beef tallow and chicken fat is in the range of 1 to 15% by mass with respect to the food grains.

  A palatability improver may be used for the coating. Examples of palatability improvers include fish and meat extracts, yeast extracts, and bonito.

<Production Example 1: Production of pet food>
[Granulation and drying process]
Raw materials excluding beef tallow and palatability improvers were mixed according to the blending amounts described in “Table 1”, and a 3-30 mm grid-like food grain was granulated using an extruder. During granulation, heat treatment was performed at 80 to 100 ° C. for 3 to 6 minutes.

[Coating process]
After adding beef tallow to dried food grains, coating was performed by further adding a palatability improver to obtain pet foods of Examples 1 and 2 and Comparative Examples. Fish extract was used as a palatability improver.

[Component analysis]
The components of the obtained pet food were analyzed using a conventionally known method. Insoluble fibers and water-soluble fibers were quantified by a modified Prosky method (see FIG. 1), and crude fibers were quantified by a filtration method (see FIG. 2). The calculation formula is shown below.

Ｒ₁，₂：ＩＤＦ残留物の重量［平均値，（Ｒ₁＋Ｒ₂）／２，ｍｇ］
Ｐ₁：ＩＤＦ残留物中のタンパク質（％）
Ａ₁：ＩＤＦ残留物中の灰分（％）
Ｓ：試料採取量（平均値、ｍｇ）
Ｂ₁：ＩＤＦブランク（ｍｇ）
Ｂ₁（ｍｇ）＝ｒ₁×｛１−（ｐ₁＋ａ₁）／１００｝
Ｆ：脱脂処理による重量減少分（％）
ｒ₁：ＩＤＦブランク残留物の重量（平均値，ｍｇ）
ｐ₁：ＩＤＦブランク残留物中のタンパク質（％）
ａ₁：ＩＤＦブランク残留物中の灰分（％） (1) Insoluble fiber (IDF)

R ₁ , ₂ : weight of IDF residue [average value, (R ₁ + R ₂ ) / 2 mg]
P ₁ : Protein (%) in IDF residue
A ₁ : Ash content in IDF residue (%)
S: Sampling amount (average value, mg)
B ₁ : IDF blank (mg)
B ₁ (mg) = r ₁ × {1− (p ₁ + a ₁ ) / 100}
F: Weight reduction due to degreasing (%)
r ₁ : weight of IDF blank residue (average value, mg)
p ₁ : protein (%) in IDF blank residue
a ₁ : Ash content (%) in IDF blank residue

Ｒ_3,4：ＳＤＦ残留物の重量［平均値，（Ｒ₃＋Ｒ₄）／２，ｍｇ］
Ｐ₂：ＳＤＦ残留物中のタンパク質（％）
Ａ₂：ＳＤＦ残留物中の灰分（％）
Ｓ：試料採取量（平均値、ｍｇ）
Ｂ₂：ＳＤＦブランク（ｍｇ）
Ｂ₂（ｍｇ）＝ｒ₂×｛１−（ｐ₂＋ａ₂）／１００｝
Ｆ：脱脂処理による重量減少分（％）
ｒ₂：ＳＤＦブランク残留物の重量（平均値，ｍｇ）
ｐ₂：ＳＤＦブランク残留物中のタンパク質（％）
ａ₂：ＳＤＦブランク残留物中の灰分（％） (2) Water-soluble fiber (SDF)

R _3,4 : weight of SDF residue [average value, (R ₃ + R ₄ ) / 2 mg]
P ₂ : Protein (%) in SDF residue
A ₂ : Ash content (%) in SDF residue
S: Sampling amount (average value, mg)
B ₂ : SDF blank (mg)
B ₂ (mg) = r ₂ × {1− (p ₂ + a ₂ ) / 100}
F: Weight reduction due to degreasing (%)
r ₂ : Weight of SDF blank residue (average value, mg)
p ₂ : protein (%) in SDF blank residue
a ₂ : Ash content (%) in SDF blank residue

(3) Coarse fiber Coarse fiber (%) = {(W ₂ −W ₁ ) − (W ₃ −W ₄ )} / S × 100

  The results are shown in “Table 2”. The pet food of Example 1 containing 4% beet pulp contains 1.5% water-soluble fibers and 7.7% insoluble fibers, and the ratio of water-soluble fibers to the fiber weight (water-soluble fiber ratio) is 16. 3%. The pet food of Example 2 containing 8% beet pulp contains 2.2% water-soluble fibers and 9.5% insoluble fibers, and the ratio of water-soluble fibers to the fiber weight is 18.8%. there were. On the other hand, the pet food of the comparative example that does not contain beet pulp contains 1.0% water-soluble fiber and 5.8% insoluble fiber, and the ratio of water-soluble fiber to the fiber weight is 14.7%. It was.

<Test Example 1: Insulin secretion inhibitory action / neutral fat concentration inhibitory action>
The pet food obtained in Production Example 1 was fed to 10 4-year-old cats (5 males and 5 females). Blood insulin concentration and blood triglyceride concentration were measured before feeding (fasting) and after feeding. Measurements after feeding were performed immediately after feeding (0 hours), 30 minutes later, 1, 2, 4 and 6 hours later. Prior to the test, all cats were measured for body weight and blood glucose level to confirm that they were healthy cats without obesity and diabetes symptoms.

  The measurement result of the insulin concentration is shown in “FIG. 3”. The vertical axis of the graph represents blood insulin concentration (ng / ml). In the pet food of Example 1, an increase in the blood insulin concentration after meal was suppressed as compared with the pet food of the comparative example. In particular, in the pet food of Example 1, the insulin concentration could be suppressed to a level almost equal to that of fasting until 1 hour after meal. Similarly, in the pet food of Example 2, an inhibitory effect on insulin secretion was observed (not shown).

  The measurement result of the neutral fat concentration is shown in “FIG. 4”. The vertical axis of the graph represents blood triglyceride concentration (mg / dl). In the pet food of Example 1, the increase in blood neutral fat concentration after meal was suppressed as compared with the pet food of the comparative example. Similarly, in the pet food of Example 2, an effect of suppressing the absorption of neutral fat was observed (not shown).

  From the above results, it was shown that pet food containing 1.5% or more of water-soluble fiber suppresses insulin secretion and neutral fat absorption after feeding and is effective in preventing obesity and diabetes.

  Generally, when an effect such as insulin secretion suppression is evaluated for a test substance, the effect on glucose load after fasting is evaluated. That is, the high sugar concentration diet to which the test substance is added is fed to the animals, and the insulin secretion inhibitory effect of the test substance is evaluated as compared with the group fed with the high sugar concentration diet not containing the test substance. In contrast, in this test example, fasting before feeding was not performed. Moreover, the pet food which is different from Examples 1 and 2 only in the point which increased the compounding quantity of the corn instead of mixing beet pulp is used for the comparative example, and the pet food which has a particularly high sugar content is not used. . The fact that insulin secretion and neutral fat absorption could be suppressed in the pet foods of Examples 1 and 2 under the test conditions based on such normal feeding was extremely significant in consideration of daily feeding to pets. It is a deep result.

  Furthermore, in any of the pet foods of Examples 1 and 2 and Comparative Example, no abnormalities in stool such as diarrhea, loose stool and constipation were observed. In addition, in the pet foods of Examples 1 and 2, a decrease in palatability was not observed as compared with the pet foods of the comparative examples and normal products.

  The pet food for obesity risk reduction according to the present invention suppresses post-meal insulin secretion and neutral fat absorption, and is therefore effectively fed to pets to reduce obesity risk.

Claims (3)

The water-soluble fiber is contained in a dry matter of 1.5 to 2.5% by mass with respect to the total weight, 15 to 25% by mass with respect to the fiber weight including the water-soluble fiber and the insoluble fiber ,
A pet food for inhibiting neutral fat absorption for healthy cats containing 7 to 10% by mass of insoluble fiber as a dry matter based on the total weight . 22 to 45 wt% of protein relative to the total weight, lipid 8 to 30 wt%, the ash content 4-10 wt%, for neutral fat absorption inhibition of claim 1 Symbol placement containing water 0 to 12 wt% Pet food. The water-soluble fiber is contained in a dry matter of 1.5 to 2.5% by mass with respect to the total weight, and 15 to 25% by mass with respect to the fiber weight .
A method for inhibiting neutral fat absorption in healthy cats , comprising a step of feeding a healthy cat with pet food containing 7 to 10% by mass of insoluble fiber as a dry matter relative to the total weight .

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