JP5258390B2 - Pet food containing whole wheat flour - Google Patents

Description

  The present invention relates to a pet food containing whole wheat flour and a method for producing the pet food. In more detail, this invention relates to the pet food which mix | blended wheat whole grain flour and rice flour with the predetermined quantity, and its manufacturing method. The pet food of the present invention has an appropriate hardness and elasticity, has a good texture, has a high palatability by pets, and is effective for suppressing an increase in blood sugar level of pets and preventing obesity. The pet food of the present invention having the above-described excellent characteristics by the production method of the present invention can be smoothly produced with good moldability, workability, processability and productivity.

  In recent years, breeding of pets such as dogs and cats has become popular. Along with this, in pets, as in humans, adult diseases such as obesity, diabetes, liver disease, colorectal cancer, and heart disease due to overnutrition, lack of exercise, and aging have occurred frequently. In view of this, pets have high palatability and pets prefer to ingest, and can prevent and / or cure various diseases such as diabetes, obesity, liver disease, colon cancer, and heart disease in pets. Pet food is required.

From this point of view, it is conventionally known to mix moss in pet food for the purpose of maintaining the health of pets. Also blended with pet food (see Patent Document 1, especially Example 7) blended with strawberry powder containing dietary fiber, etc., with cuticles obtained from the fruit of plants (wheat) belonging to the family Gramineae Strawberry Pet food (see Patent Document 2), pet food (see Patent Document 3) containing fats and oils and modified starch and having a diacylglycerol content of 20% by mass or more in all fats and oils.
Furthermore, in order to improve the taste, a reaction product obtained by hydrolyzing a slurry made of flour material such as whole ground corn, protein material and water with amylase and protease is ground in soybeans, whole ground wheat, It has been proposed to produce a dog food by mixing with other materials, extruding, and slicing (see Patent Document 4).

  However, it is difficult to say that the conventional pet food containing moss and the pet food of Patent Document 1 containing candy powder have good palatability by pets. In particular, when a large amount of rice cakes or rice cake powder is blended, the feeding property of pets is greatly reduced, and the formability, workability, processability, etc. when producing pet foods are reduced. It is likely to be difficult to manufacture

  Moreover, the pet food of patent document 2 which mix | blended the cuticle obtained from the fruit of the plant (barley) belonging to the Gramineae strawberry jumpy subfamily is the fruit of the plant (barley) belonging to the Gramineous strawberry jumpy subfamily In order to collect cuticles from the skin, it takes a laborious and time consuming process of peeling and collecting the cuticles by rubbing the skin after treating the fruit of the plant (wheat) with an alkaline aqueous solution, For this reason, the cost of pet foods containing such cuticles increases, and it is difficult to obtain pet foods having health promotion effects easily and at low cost.

  The pet food of Patent Document 3 has a low glycemic index value (GI value) and has an effect of suppressing an increase in blood glucose level in pets and thus an effect of preventing obesity, but contains diacylglycerol in the total fat and oil contained in the pet food. Since it is necessary to adjust the amount to 20% by mass or more, the oils and fats used for the production of pet food are particularly selected so that the diacylglycerol content in the total oils and fats is 20% by mass or more, and a specific composition It is necessary to formulate the pet food, and it takes time and cost to formulate the pet food.

  In the dog food of Patent Document 4, a slurry composed of flour material, protein material and water is hydrolyzed with amylase and protease to produce a reaction product, and the resulting reaction product is mixed with other materials. Therefore, the production of dog food is expensive, time-consuming and time-consuming because it requires separate enzyme treatment with two types of enzymes, amylase and protease.

Japanese Patent Laid-Open No. 11-9199 JP 2007-275209 A JP 2007-110914 A JP 58-43750 A

An object of the present invention is to provide a pet food that has high palatability by pets, is favored by pets, and has an effect of preventing or suppressing obesity in pets and suppressing an increase in blood glucose level.
Furthermore, an object of the present invention is to provide a pet food that can smoothly excrete stool in pets and has an effect of preventing or suppressing colon cancer in pets.
In addition, the object of the present invention is to eliminate the need for expensive materials and special processing steps that require labor and time, and by using inexpensive raw materials, good moldability without extra labor and time. Another object of the present invention is to provide a pet food that can be manufactured easily, smoothly, at low cost and with high productivity with good workability and processability, and a manufacturing method thereof.

The inventors have made various studies in order to achieve the above object. As a result, the whole wheat flour is blended in a specific amount of 35 to 65% by mass with respect to the total mass (total mass) of all the raw materials used for the production of pet food, and 14 rice flour is added to 100 parts by mass of the whole wheat flour. When pet food is produced by blending at a specific ratio of ˜50 parts by mass, it has moderate hardness and elasticity (chewy), has high palatability by pets, and suppresses an increase in blood sugar level of pets We found that an effective pet food can be obtained.
In addition, the present inventors have found that when pet food containing whole wheat flour and rice flour in the above-described proportion is fed to pets, feces are excreted well in pets.
Moreover, it discovered that the above-mentioned outstanding effect by the pet food which mix | blended whole wheat flour and rice flour was exhibited more favorable in the case of dog food.

Furthermore, when the present inventors use whole wheat flour and rice flour in the above-mentioned blending amounts, the raw material mixture becomes better and less sticky, and the moldability, workability, processability during pet food production, Productivity is improved, for example, when water is added to a raw material mixture for pet food and supplied to an extruder or the like to produce pet food, the raw material mixture is kneaded smoothly, and the kneaded material The kneaded material does not stick to the die or cutter when it is extruded from the die, or when it is cut (smaller) after extrusion, and can be manufactured with good moldability and expandability. It has been found that it can be smoothly cut into small pieces (such as pellets) of uniform size.
In addition, the present inventors have found that when the pet food is a dry type or semi-moist type pet food, the above-described effects of the present invention are more effectively exhibited. Based on this, the present invention has been completed.

That is, the present invention
(1) Wheat whole wheat flour is blended in a proportion of 35 to 65 mass% with respect to the total mass of the pet food raw material, and rice flour is blended in a proportion of 14 to 50 mass parts with respect to 100 mass parts of wheat whole wheat flour. It is a featured pet food.
And this invention,
(2) The pet food according to (1), which is a dry type, semi-moist type or soft dry type pet food; and
(3) The pet food according to (1) or (2) above, which is a dog food;
It is.

Furthermore, the present invention provides
(4) Using the raw material mixture which mix | blended whole wheat flour at 35-65 mass% with respect to the gross mass of the raw material for pet food, and mix | blended rice flour in the ratio of 14-50 mass parts with respect to 100 mass parts of wheat whole grain flour. A pet food manufacturing method characterized by manufacturing pet food.
And this invention,
(5) The production method according to (4), wherein the pet food is produced using an extruder.

The pet food of the present invention has moderate hardness and elasticity (crispness), and also contains a lot of whole wheat flour having various tastes. Ingest.
The pet food of the present invention has an effect of suppressing or preventing an increase in blood glucose level in pets, an effect of suppressing or preventing the onset of diabetes in pets, and an effect of suppressing or preventing obesity.
The pet food of the present invention can smoothly excrete feces in pets.
Since the pet food of the present invention has appropriate elasticity and shape retention, it is excellent in fluidity and handleability, and can be smoothly filled into the packaging bag and taken out from the packaging bag.

  The pet food of the present invention having the above-mentioned excellent characteristics can be obtained by the production method of the present invention in which the whole amount of wheat flour and rice flour are blended in the specific amounts defined in the present invention to produce the pet food. Can be manufactured smoothly. For example, when producing the pet food of the present invention using an extruder, the raw material mixture is well kneaded with a screw and the extrusion from the die is smoothly performed, and also during cutting after extrusion (pelletization) The kneaded product can be prevented from adhering to the extrusion device or cutting blade when the sizing is performed, and the extrudate extruded from the die has an appropriate hardness, elasticity, and shape retention. It can be smoothly cut into small pieces (such as pellets).

The present invention is described in detail below.
The whole wheat flour used in the present invention is obtained by making a wheat grain into a powder without removing the outer coat or germ of wheat.
In the present invention, any of the "wheat whole grain flour" that has been manufactured, sold, and used conventionally can be used, and among them, it can be obtained by pulverizing normal wheat grains (wheat grains that are not durum wheat grains), Wheat whole grains having an average particle size of 300 μm or less, more preferably 200 μm or less, and particularly 50 to 200 μm, are preferably used from the viewpoint of workability during production.
In addition, the average particle diameter of the whole wheat flour means an average particle diameter measured by a dry method using “Microtrac particle size distribution measuring apparatus 9200FRA” manufactured by Nikkiso Co., Ltd.
Specific examples of whole wheat flour that can be used in the present invention include, for example, “Whole Grain D”, “Super Fine Hard”, “Super Fine Soft”, “Graham Bread Flour” manufactured by Nisshin Flour Milling Co., Ltd. Can do.

In the pet food of the present invention, the whole wheat flour is used for the total mass of the raw materials used in the production of the pet food (the total mass of all the raw materials including the whole wheat wheat flour) (however, it does not include water added during the production of the pet food). It is necessary to mix | blend the ratio of 35-65 mass%, it is preferable to mix | blend in the ratio of 38-65 mass%, and it is more preferable to mix | blend in the ratio of 40-62 mass%.
If the blending amount of the whole wheat flour is less than the amount specified in the present invention, the palatability by the pets is lowered, and the effect of suppressing the increase in blood glucose level in the pets is hardly exhibited. On the other hand, if the total amount of whole wheat flour is larger than specified in the present invention, the raw material mixture will become unorganized or sticky, and will adhere during pet food production, resulting in poor formability and workability. In addition, the pet food becomes stiff, the elasticity of the pet food is reduced, and the palatability by the pets is reduced.

In the pet food of the present invention, rice flour is used together with whole wheat flour.
By using rice flour, the moldability, swelling and workability at the time of pet food production become better, pet food can be produced with good productivity, and it has moderate hardness and elasticity, A pet food with high palatability by pets and excellent in appearance, fluidity, handling and the like can be obtained.
Although any rice flour can be used as the rice flour, white rice cake, a by-product during the production of sake, is preferred in that it can impart more suitable hardness and elasticity to the pet food.

In the pet food of this invention, it is necessary to mix | blend rice flour in the ratio of 14-50 mass parts with respect to 100 mass parts of whole wheat flour, It is preferable to mix | blend in the ratio of 18-45 mass parts, 20-35. More preferably, it is blended in the proportion of parts by mass.
If the amount of rice flour is less than the amount specified in the present invention, the raw material mixture becomes sticky, not only the moldability, swelling property, workability, processability, etc. at the time of pet food production are reduced, but also obtained. The pet food that is produced loses the appropriate hardness and elasticity, which reduces the palatability of the pets and causes poor appearance. On the other hand, if the blending amount of rice flour is larger than the amount specified in the present invention, not only the blending ratio of the whole wheat flour is decreased, but the appropriate hardness and elasticity of the obtained pet food are easily lost, and depending on the pets. Preference decreases.

  In the pet food of the present invention, the total blending amount of whole wheat flour and rice flour is 40 to 80% by mass, in particular, with respect to the total mass of raw materials used in the production of pet food (total mass of all raw materials including flour). It is preferable that it is 45-75 mass% from points, such as the moldability at the time of pet food manufacture, workability | operativity, process property, the preference (feeding property) by pets, and nutrition of pets.

The pet food of this invention can contain 1 type, or 2 or more types of the other raw material (component) conventionally used in pet food with whole wheat flour and rice flour.
Other raw materials that the pet food of the present invention may contain include, for example, protein materials, fats and oils, carbohydrate materials, nutritional supplements, health enhancers, seasonings (salt, sugar, sodium glutamate, etc.), spices (basil, Glove, rosemary, etc.), flavoring agents (meat extract, fish extract, etc.), thickeners (gums, etc.), gelling agents and the like.
Of the above-mentioned raw materials, etc., raw materials suitable for each pet are selected and combined according to the type and age (month age) of the pets.

Examples of the protein material include birds such as chickens, ducks, quails and turkeys, livestock such as cows, pigs, horses, sheep and rabbits, sardines, tuna, bonito, mackerel, Thai, flounder, salmon, trout and crabs. Meat, by-products, processed products in the form of powders, pastes, flakes, chunks, etc., derived from seafood such as shrimp, squid, octopus; egg products (whole egg, egg yolk, egg white, powdered eggs, etc.) Animal protein materials such as dairy products (milk proteins such as cheese and casein); vegetable protein materials such as okara, soy protein, wheat protein, wheat gluten and corn gluten, and one or two of these More than seeds can be used.
The pet food of the present invention contains 15 to 40% by mass, particularly 20 to 35% by mass of the protein material to the total mass (total mass) of the raw materials used for the production of pet food. It is preferable in terms of nutritional balance of food, health maintenance of pets, promotion of growth, palatability (feeding property) and the like.

Examples of the fats and oils include animal fats such as beef tallow, pork tallow, fish oil and milk fat, corn oil, salad oil, soybean oil, sesame oil, cottonseed oil, rapeseed oil, linseed oil, safflower oil, olive oil, sunflower Vegetable oils such as oil can be mentioned, and one or more of these can be used.
The pet food of the present invention is 1 to 20 oils and fats with respect to the total mass (total mass) of the raw materials used for the production of pet food, relative to the total mass (total mass) of the raw materials used for the production of pet food. It is preferable to contain in the ratio of 2 mass%, especially 2-12 mass% from points, such as the shaping | molding / processability at the time of pet food manufacture, the nutrition balance of pet food, the energy reinforcement to pets, palatability.

  Moreover, you may contain carbohydrate materials other than the whole wheat flour and rice flour in the range which does not inhibit the effect of this invention. Examples of such carbohydrate materials include barley flour, wheat flour, corn pulverized products, and potatoes.

In addition, as the above-mentioned nutritional supplement or health enhancer, vitamins, minerals, amino acids, amylase inhibitors, lipase inhibitors, wheat gluten hydrolysates, chondroitin sulfate, polyphenol-containing materials, lactic acid bacteria, γ-aminobutyric acid ( GABA), coenzyme Q10 and the like can be mentioned, and the pet food of the present invention can contain one or more of these.
Furthermore, the pet food of this invention can contain vegetables, vegetable extracts, a swelling agent, a pH adjuster, a preservative, a pigment | dye etc. as needed other than an above-described component.

Depending on the water content, pet food has a dry type with a low water content (usually a water content of 10% by mass or less), a semi-moist type or a soft dry type (usually a water content of about 25 to 35% by mass) and a high water content. Moist type (usually water content of about 50% by mass or more).
The pet food of the present invention is any one of a dry type, a semi-moist type, and a soft dry type, and among them, a dry type is more preferable from the viewpoints of productivity, handleability, nutrition, and the like.
When the pet food of the present invention is a dry type pet food, the water content in the pet food can be 10% by mass or less, further 3 to 9.5% by mass, based on the total mass of the pet food. From the viewpoints of hardness, fluidity, handleability, and pet food palatability.
In addition, when the pet food of the present invention is a semi-moist type or soft dry type pet food, the pet food may have a moisture content of 25 to 35% by mass based on the total mass of the pet food. It is preferable from the point of the elasticity of food, fluidity | liquidity, handleability, and the palatability by pets.

The shape of the pet food of the present invention is not particularly limited, and can be the same shape as a conventional dry type, semi-moist type or soft dry type pet food, for example, pellet shape, granular shape, stick shape, donut shape It can be a small piece of any shape such as a star shape, a dogbone shape, a ball shape, a flat round shape, a spherical shape, an elliptical shape, or a square shape.
The size of these small pieces is not particularly limited and can be determined according to the type and age of the pet to be fed. However, in terms of palatability, generally 3 to 15 mm, and more preferably 8 to 12 mm. It is preferable to keep the size about. In particular, in the case of a pellet-shaped pet food, the diameter is 3 to 12 mm and the length is 8 to 15 mm, especially the diameter is 5 to 10 mm and the length is 9 to 12 mm. From the viewpoints of workability, handling of pet food, and palatability by pets.

The pet food of the present invention may or may not be expanded. When it is expanded, the entire small piece may be expanded, or a part of the small piece may be expanded.
When the pet food of the present invention is a small dry type pet food having the above-mentioned shape, the specific gravity of the pet food is 0.35 to 0.50, particularly 0.40 to 0.00. It is preferable to set it to 45 from the viewpoint of ease of production of pet food, palatability by pets, and the like.

  Dry type pet foods are generally considered to be inferior in palatability due to their low water content compared to moist type and soft dry type pet foods. Nevertheless, even if the pet food of the present invention is a dry type, it is provided with various tastes based on the whole wheat flour by blending whole wheat flour and rice flour in the amounts specified in the present invention. Since it has an appropriate hardness, it has excellent palatability and is well taken by pets.

  Examples of pets that can feed the pet food of the present invention include dogs and cats. Among them, the pet food of the present invention is suitable as a pet food for dogs (dog food).

The method for producing the pet food of the present invention is not particularly limited, and can be produced by adopting a conventionally used method for producing pet food. For example, an extruder, an injection molding machine, a compression molding machine, etc. are used. Can be manufactured.
Among these, the method of manufacturing using an extruder is preferable from the viewpoints of productivity, workability, and the like.

  When manufacturing dry type pet food using an extruder, an appropriate amount of water (generally for pet food) is added to the raw material mixture for pet food in which the whole wheat flour and rice flour are blended in the prescribed amounts specified in the present invention. Water is added at a rate of 10 to 40 parts by mass with respect to 100 parts by mass of the raw material mixture, and extruded from an extruder at 100 to 150 ° C., preferably 100 to 140 ° C., and cut into a predetermined size (length). Then, the pellets of the present invention can be smoothly produced with good moldability and workability by drying until the water content is 10% by mass or less, preferably 3 to 9.5% by mass. When the kneading temperature of the raw material mixture added with sucrose and the extrusion temperature from soybean are 100 ° C. or higher, generally expanded pet food can be obtained.

In addition, in the manufacturing process of the dry type pet food by the above-described extruder, the amount of water added to the raw material mixture is larger than that at the time of manufacturing the dry type pet food, and the drying process after extrusion cutting is omitted. A soft dry pet food having a predetermined moisture content can be obtained by adjusting the moisture content to 25 to 35 mass% by reducing the degree of drying.
Moreover, a semi-moist type pet food can be manufactured by cooling at the time of extrusion by an extruder so as not to expand.

  There are no particular restrictions on the method and amount of feeding the pet food of the present invention, and the amount necessary for the growth of the pets, or the amount necessary for maintaining weight and maintaining health is fed.

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to the following examples.
In the following examples, the workability at the time of manufacturing dog food, the elasticity of the dog food, and the palatability (feeding property) of the dog food were evaluated by the following methods.

(1) Workability when manufacturing dog food:
Based on Comparative Example 1, the score was evaluated according to the evaluation criteria shown in Table 1 below.

(2) Dog food hardness:
The hardness of the dog food obtained in the following examples and comparative examples was measured using a circle with a plunger tip diameter of 5 mm using a “Kiya type digital hardness meter KHT-20N type” manufactured by Fujiwara Seisakusho.

(3) Dog food preference (feeding):
(I) Twenty dogs (types: maltese, papillon, shiba inu, miniature dachshund, body weight 3 kg to 10 kg) are separated one by one and housed in individual kennels. The dog food produced in 1) is put in a food dish in an amount of 3% by weight of each dog's body weight and is fed to each dog at 4 pm. At the same time, a commercially available dog food ("Ranmeal" manufactured by Nissin Pet Food Co., Ltd.) Pour the same amount in a separate food dish and feed each dog to feed from 4 pm to 9 am the next day. The ingestion amount (mass%) of the dog food of Example 1 with respect to the total amount of dog food ingested before 9 am was determined. The same test was conducted for 2 days, and the average value of 20 dogs (average value of the intake ratio of the dog food of Example 1) was taken.
(Ii) About the dog food manufactured in the following Examples 2-3 and Comparative Examples 1-3, using the same 20 dogs as in the above (i), A two-day preference test with dog food (Nisshin Pet Food Co., Ltd. “Ranmeal”) was conducted for 2 days, and the average value (average food intake; mass%) of 20 dogs was determined. .

<< Comparative Example 1 >>
(1) As shown in Table 2 below, 41.0 parts by weight of normal wheat flour (“Violet” manufactured by Nissin Flour Milling Co., Ltd.), 13.0 parts by weight of rice flour (manufactured by Kinki Shuzo Seiki Co., Ltd.), defatted soybean ( J Oil Mills Co., Ltd.) 12.8 parts by mass, Chicken Meal (Okayama Prefecture Broiler) 21.5 parts by mass, animal fats and oils (Tokuda Trading Co., Ltd.) 10.0 parts by mass and minerals 1.7 After thoroughly mixing the mass parts (total mass 100 mass parts of the mixture), add 10 mass parts of water, supply to a single screw extruder ("X-185" manufactured by Wenger) and knead at a temperature of 140 ° C. After extruding into a strand from a die, cutting, and drying in a hot air oven at a temperature of 80 ° C., the puffed dog food (dry pellet) (diameter 10 mm, length 10 mm, moisture content about 9% by mass, specific gravity 0.43) ) . In that case, the workability | operativity at the time of dog food manufacture was evaluated by the method mentioned above.
In addition, evaluation of workability | operativity at the time of dog food manufacture in the following Examples 1-3 and Comparative Examples 2-3 was evaluated on the basis of the workability of this Comparative Example 1.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

Example 1
(1) As shown in Table 2 below, 41.0 parts by weight of whole wheat flour (“Whole Grain D” manufactured by Nisshin Flour Milling Co., Ltd.), 13.0 parts by weight of rice flour (same as Comparative Example 1), defatted soybean ( Same as Comparative Example 1) 12.8 parts by weight, Chicken Meal (same as Comparative Example 1) 21.5 parts by weight, Animal Oil (same as Comparative Example 1) 10.0 parts by weight and Mineral (Comparative Example) Comparative Example 1 after thoroughly mixing 1.7 parts by mass (total mass of 100 parts by mass of the mixture), adding 10 parts by mass of water and using the same single screw extruder as Comparative Example 1. The dog food (dry pellet, diameter 10 mm, length 10 mm, moisture content about 9 mass%, specific gravity 0.44) which was expanded by kneading, extruding, cutting and drying under the same conditions as above was produced. At that time, workability at the time of manufacturing the dog food was evaluated by the above-described method based on the above Comparative Example 1, and as shown in Table 2 below.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

Example 2
(1) The same whole wheat flour used in Example 1, the same rice flour used in Comparative Example 1, defatted soybeans, chicken meal, animal fats and minerals are blended in the amounts shown in Table 2 below. After sufficiently mixing (total mass of the mixture: 100 parts by mass), 10 parts by mass of water was added, and the same single screw extruder as in Comparative Example 1 was used, and kneaded, extruded, and cut under the same conditions as in Comparative Example 1. A dog food (dry pellet, diameter 10 mm, length 10 mm, water content about 9% by mass, specific gravity 0.40) was produced by drying. At that time, workability at the time of manufacturing the dog food was evaluated by the above-described method based on the above Comparative Example 1, and as shown in Table 2 below.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

Example 3
(1) Same wheat whole grain flour as used in Example 1, same rice flour as used in Comparative Example 1, defatted soybean, chicken meal, animal fats and minerals in the amounts shown in Table 2 below. After sufficiently mixing (total mass of the mixture: 100 parts by mass), 10 parts by mass of water was added, and the same single screw extruder as in Comparative Example 1 was used, and kneaded, extruded, and cut under the same conditions as in Comparative Example 1. A dog food (dry pellet, diameter 10 mm, length 10 mm, water content about 9% by mass, specific gravity 0.41) was produced by drying. At that time, workability at the time of manufacturing the dog food was evaluated by the above-described method based on the above Comparative Example 1, and as shown in Table 2 below.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

<< Comparative Example 2 >>
(1) The same whole wheat flour used in Example 1, the same defatted soybeans, chicken meal, animal fats and minerals used in Comparative Example 1 in the amounts shown in Table 2 below and fully After mixing (total mass of 100 parts by mass of the mixture), 10 parts by mass of water was added, and using the same single screw extruder as in Comparative Example 1, kneading, extruding, cutting and drying under the same conditions as in Comparative Example 1 To produce a swollen dog food (dry pellet, diameter 10 mm, length 10 mm, moisture content about 9 mass%, specific gravity 0.44). At that time, workability at the time of manufacturing the dog food was evaluated by the above-described method based on the above Comparative Example 1, and as shown in Table 2 below.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

<< Comparative Example 3 >>
(1) The same whole wheat flour as used in Example 1, the same flour as used in Comparative Example 1, defatted soybean, chicken meal, animal fats and minerals were blended in the amounts shown in Table 2 below. After sufficiently mixing (total mass of the mixture: 100 parts by mass), 10 parts by mass of water was added, and the same single screw extruder as in Comparative Example 1 was used, and kneaded, extruded, and cut under the same conditions as in Comparative Example 1. A dog food (dry pellet, diameter 10 mm, length 10 mm, moisture content about 9 mass%, specific gravity 0.43) was produced by drying. At that time, workability at the time of manufacturing the dog food was evaluated by the above-described method based on the above Comparative Example 1, and as shown in Table 2 below.
(2) The hardness of the dog food (dry pellet) obtained in (1) above was measured by the method described above, and as shown in Table 2 below.
Moreover, when the palatability test by a dog was done by the above-mentioned method, it was as showing in following Table 2.

As can be seen from the results in Table 2 above, in the dog food of Examples 1 to 3, the whole wheat flour and rice flour are blended in the amounts specified in the present invention, so that the workability at the time of manufacturing the dog food (formability, swelling) Etc.), and a dog food excellent in appearance and uniformity could be produced smoothly with good productivity.
Moreover, the dog food obtained in Examples 1 to 3 is not too hard, has a suitable hardness, and contains a lot of whole wheat flour and has a variety of tastes. Is excellent.

On the other hand, the dog food of the comparative example 1 mix | blended normal wheat flour and rice flour, without mix | blending whole wheat flour, Compared with Examples 1-3, workability | operativity at the time of dog food manufacture (formability, swelling) The dog food obtained is inferior to the dog foods of Examples 1 to 3 in terms of palatability by the dog.
Moreover, although the dog food of the comparative example 2 mix | blended whole wheat flour, the workability | operativity at the time of dog food manufacture (formability) compared with Examples 1-3 by not mix | blending the rice flour used by this invention. In addition, the obtained dog food is hard and not elastic, and is also inferior to the dog foods of Examples 1 to 3 in terms of palatability by the dog.
Although the dog food of the comparative example 3 mix | blended whole wheat flour, it mix | blended normal wheat flour instead of rice flour, Compared with Examples 1-3, workability | operativity at the time of dog food manufacture (formability, swelling property, etc.) In addition, the dog food obtained is hard and inelastic, and the obtained dog food is greatly inferior to the dog foods of Examples 1 to 3 in terms of palatability by the dog.

<< Test Example 1 >>
(1) After taking 150 g of the dog food obtained in Example 1 to a beagle having a body weight of about 10 kg, blood was collected and blood glucose was measured immediately after ingestion, 30 minutes after ingestion and 60 minutes after ingestion. As shown in Table 3 below.
The blood glucose level was measured by collecting 2 ml of blood from the cephalic vein of a beagle dog at the time of each measurement and measuring glucose using a kit “Iatro LQ GLU” manufactured by Unitika Ltd.
(2) After letting the beagle dog used in the above (1) ingest 150 g of the dog food obtained in Comparative Example 1 at the same time as the test in the above (1) on the day after the test in the above (1), Immediately after ingestion, 30 minutes after ingestion and 60 minutes after ingestion, blood was collected and blood glucose levels were measured by the same method as in (1) above, and as shown in Table 3 below.

  As can be seen from the results in Table 3 above, in the dog food of Example 1, the whole blood flour and rice flour are blended in the amounts specified in the present invention, so that the blood sugar level rises even after 60 minutes of ingestion of the dog food. Not. On the other hand, the dog food of Comparative Example 1 has an increased blood sugar level 60 minutes after ingestion by blending normal wheat flour and rice flour without blending whole wheat flour.

  The pet food of the present invention has a suitable hardness and elasticity by blending whole wheat flour and rice flour in a specific amount specified in the present invention, and has various tastes based on whole wheat flour. It has a high palatability, and has the functions to suppress and prevent the increase in blood glucose level of pets and the function to suppress and prevent obesity, and it can be manufactured smoothly with good moldability, workability, processability and productivity. Therefore, it is useful as a pet food for pets such as dogs and cats.

Claims (5)

The wheat meal in proportions of 35 to 65% by weight based on the total weight of the pet food raw material, and is characterized in that blended Shiranuka at a ratio of 14 to 50 parts by weight relative to wheat meal 100 parts by Pet food.   The pet food according to claim 1, which is a dry type, semi-moist type or soft dry type pet food.   The pet food according to claim 1 or 2, which is a dog food. Pet food by using the pet food on the total weight of the raw material wheat meal mixed with 35 to 65 wt%, and the raw material mixture obtained by blending against wheat meal 100 parts by mass Shiranuka at a ratio of 14 to 50 parts by weight A method for producing a pet food, comprising:   The manufacturing method of Claim 4 which manufactures pet food using an extruder.