JP5419902B2 - Method for producing pet food using heat-treated paste - Google Patents

Description

  The present invention relates to a method for producing a dry type, semi-moist type or soft dry type pet food using a heat-treated paste.

For pet food, dry type with a moisture content of 10% or less, wet type with a moisture content of about 75% by mass, a soft dry type with a moisture content of about 25% to 35% by mass, a semi-moist type without foaming, etc. There are jerky and wheat confectionery.
Dry type pet food can be prepared by using an extruder, for example, flour, corn, defatted soybeans, chicken meal, beef meal, a mixture of minerals and vitamins, etc. 10 to 40 parts by mass of water with respect to 100 parts by mass of the raw material mixture), extruded at 100 ° C. to 150 ° C., cut into a predetermined length, and then the water content becomes 10% by mass or less. It can be manufactured by drying.
When the kneading temperature of the raw material mixture to which water is added and the extrusion temperature from the die are 100 ° C. or higher, generally expanded pet food can be obtained.
In soft dry type pet food, the amount of water added to the raw material mixture in the manufacturing process of the dry type pet food by the above-mentioned extruder is larger than that in the production of the dry type pet food, and the drying process after extrusion cutting. Can be obtained by adjusting the water content to 25 to 35% by mass.
A semi-moist type pet food can be obtained by cooling it so as not to expand when it is extruded by an extruder.

In most dry-type pet foods, coating with oils and fats or extracts is performed as a method for improving the palatability of pets.
Addition of an extract has a great effect as a factor that determines palatability.
Examples of the extract to be added include livestock meat extracts such as chicken extract, beef extract, pork extract, and mutton extract, seafood extracts such as skipjack extract, sardine extract, tuna extract, mackerel extract, salmon extract, and yeast extract.
On the other hand, in addition to coating with fats and oils and extracts, coating with batters is also performed.
For example, a feed characterized by coating a batter on a granulated feed base material and binding another granular material using the physical properties of the batter is known (for example, Patent Document 1). reference).

JP 2006-166872 A

Even a pet food coated with a conventional batter has a sufficient palatability improving effect, but a method for further increasing the palatability is demanded.
Accordingly, an object of the present invention is to provide a method for producing a dry type, semi-moist type or soft dry type pet food using a paste that has been heat-kneaded.

As a result of intensive studies to achieve the above object, the present inventors have found that the preference can be remarkably improved by heat-kneading the paste used for coating before coating the feed base material. The present invention has been completed.
Therefore, the present invention includes 10 to 200 parts by mass of flour and / or starch with respect to 100 parts by mass of fats and oils that are solidified at 40 ° C. or less, which are subjected to a heat-kneading treatment at 70 to 150 ° C. for 5 to 30 minutes. It is a method for producing a dry type, semi-moist type, or soft dry type pet food characterized by being coated with a paste.
Moreover, it is a manufacturing method of the said pet food characterized by using paste in the ratio of 5 to 40 mass parts with respect to 100 mass parts of feed base materials.

  The dry type, semi-moist type, or soft dry type pet food coated with the paste subjected to the heat-kneading treatment of the present invention has excellent palatability.

Hereinafter, the present invention will be described in detail.
In the present invention, dry type pet food refers to pet food having a moisture content of 10% by mass or less, and soft dry type pet food refers to expanded pet food having a moisture content of 25% by mass to 35% by mass, The semi-moist type pet food refers to an unexpanded pet food having a water content of 25% by mass to 35% by mass.
The target pet is a dog or a cat.
Since the paste raw material of this invention fully exhibits the effect of heat processing, 10 mass parts or more of starch and / or starch are 200 mass parts or less as an essential component with respect to 100 mass parts of fats and oils solidified at 40 degrees C or less.
If necessary, a powder extract, a pigment, a pH adjuster, a thickener, a fiber, a meat meal such as chicken meal, fish meat, livestock meat, vegetables, glycerin, sugars, whey, etc. can be used.

The flour that can be used in the present invention is not particularly limited as long as it is used in conventional pet foods, and examples thereof include wheat flour, buckwheat flour, rye flour, barley flour, rice flour, corn flour, and oat flour. be able to.
Also, the starch that can be used in the present invention is not particularly limited as long as it is a starch used for conventional pet food, for example, wheat starch, corn starch, waxy corn starch, potato starch, sweet potato starch, tapioca starch, Examples thereof include rice starch, sago starch, and waste starch.
As these starches, raw raw starch, processed starch such as phosphoric acid cross-linking, esterification such as acetylation, etherification such as hydroxypropylation, wet heat treatment, hot water treatment, fat processing, and pregelatinization can be used.
The blending ratio of flour and / or starch is 10 to 200 parts by mass of flour and / or starch with respect to 100 parts by mass of fat and oil.
If the blending ratio of cereal flour and / or starch is less than 10 parts by mass, surface stickiness increases, which is not preferable.
On the other hand, when the amount exceeds 200 parts by mass, the fluidity is lowered, so that uniform coating becomes difficult, which is not preferable.

  The fats and oils that can be used in the present invention are not particularly limited as long as they are fats and oils that are solidified at 40 ° C. or lower, which are used in conventional pet foods, and examples thereof include beef tallow, pork tallow, and chicken tallow.

When using a powder extract in this invention, if it is a powder extract currently used for the conventional pet food, there will be no limitation in particular.
For example, chickens, ducks, quails, turkeys and other birds, cattle, pigs, horses, sheep, rabbits, etc. Powdered seafood extract made from squid, octopus, etc., and powdered yeast extract made from bakers yeast, brewer's yeast, torula yeast, etc. can be used.
The blending ratio of the powder extract is preferably 1 part by mass or more and 80 parts by mass or less with respect to 100 parts by mass of the fat and oil.
When the blending ratio of the powder extract is less than 1 part by mass, the palatability is lowered, which is not preferable.
Moreover, when it exceeds 80 mass parts, since it will become easy to get bored and a food intake will fall with time, it is unpreferable.

In the present invention, the paste used for coating is heat-kneaded before coating the feed base material.
The appliance used for the heat-kneading process is not particularly limited as long as the appliance can be heated until it becomes a paste, and a cooking appliance such as a pan or a kneader can be used.
The heating is performed while mixing the raw materials and water as necessary into the cooking utensil.
The heat-kneading treatment is performed at 70 to 150 ° C. for 5 to 30 minutes to prepare a paste.
Thereby, gelatinization of starch and heating reaction products such as starch and fat can be obtained, and a paste with improved palatability can be obtained.
If the heating temperature is less than 70 ° C., this effect cannot be sufficiently obtained.
The upper limit of the heating temperature is 150 ° C, and when heated above this temperature, the burning odor becomes strong and a sufficient effect cannot be obtained.
If the heating time is less than 5 minutes, sufficient effects cannot be obtained.
Moreover, even if the heating time exceeds 30 minutes, the burnt odor becomes strong, and the effect cannot be sufficiently obtained as compared with the pet having a preference within a range (5 minutes or more and 30 minutes or less).
A preferable heating temperature is 80 ° C. to 120 ° C., and a heating kneading time is 10 minutes to 20 minutes.
The residual moisture of the paste is preferably 15% by mass or less in the paste from the viewpoint of storage stability, and is preferably 3% by mass or more for preventing scorching.

A method for coating a dry type, soft dry type or semi-moist type pet food with a heat-kneaded paste is, for example, putting a feed base material in a rotary drum mixer heated to 80 ° C., and gradually adding the paste. It is possible to carry out by natural cooling after being put in and covered.
What is necessary is just to adjust the coating amount of the said paste suitably, for example, it can use in the ratio of 5 to 40 mass parts with respect to 100 mass parts of feed base materials.

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.
[Examples 1-4, Comparative Examples 1-2]
After thoroughly mixing 50 parts by weight of corn, 16 parts by weight of wheat flour, 12 parts by weight of soybean meal, 8 parts by weight of chicken meal, 7 parts by weight of meat meal, 5 parts by weight of bran, 1 part by weight of minerals, and 1 part by weight of vitamins, water Add 20 parts by mass, feed to single screw extruder, knead at 140 ° C, extrude from die, cut, then dry at 120 ° C for 20 minutes so that moisture is 8-10%, feed base Expanded dry food granules (diameter 10 mm, length 10 mm) were produced.
Next, 50 parts by mass of beef tallow, 30 parts by mass of wheat flour, 10 parts by mass of brewer's yeast extract, and 10 parts by mass of liver extract were put into a pan, and the paste kneaded by heating and kneading with the heating temperature and heating kneading time shown in Table 1 was used. Prepared.
Using a drum mixer heated to 80 ° C., 30 parts by mass of the paste was gradually added to 100 parts by mass of the dry food grains as the feed base material, and this was allowed to stand at room temperature to dry type I got dog food.

[Preference test]
The dog food obtained in the same manner as in Example 1 except that the heating temperature was changed to 60 ° C. and the heating and kneading time was changed to 5 minutes in Example 1, and the same amount of the test dog food was put in another food dish as a control. The palatability test by “alternate choice” was performed by feeding to the zoo and feeding from 2 pm to 4 pm.
The evaluation was performed by determining the intake amount (mass%) of the test dog food with respect to the total amount of dog food.
The results are shown in Table 1.
The product of the present invention was extremely high in preference as compared with Comparative Example 1 and Comparative Example 2.

[Examples 5-8, Comparative Examples 3-4]
After thoroughly mixing 50 parts by weight of corn, 16 parts by weight of wheat flour, 12 parts by weight of soybean meal, 8 parts by weight of chicken meal, 7 parts by weight of meat meal, 5 parts by weight of bran, 1 part by weight of minerals, and 1 part by weight of vitamins, water Add 20 parts by mass, feed to single screw extruder, knead at 140 ° C, extrude from die, cut, then dry at 120 ° C for 20 minutes so that moisture is 8-10%, feed base Expanded dry food granules (diameter 10 mm, length 10 mm) were produced.
Next, 45 parts by weight of beef tallow, 25 parts by weight of wheat flour, 10 parts by weight of liver extract, 10 parts by weight of whey, and 10 parts by weight of chicken meal were put in a pan and heated and kneaded according to the cooking temperature and time shown in Table 2. A heat-kneaded paste was prepared.
Using a drum mixer heated to 80 ° C., 20 parts by mass of the paste was gradually added and applied to 100 parts by mass of the dry food grains as the feed base material, and this was left at room temperature to dry type I got dog food.

[Preference test]
A palatability test was conducted in the same manner as in Example 1.
The results are shown in Table 2.
The product of the present invention was very highly preferred as compared with Comparative Example 3 and Comparative Example 4.

[Examples 9 to 12, Comparative Examples 5 to 6]
A paste was prepared in the same manner as in Example 2 except that the amount of paste was changed to the amount shown in Table 3 in Example 2.
In Table 3, the unit is part by mass.
Using a drum mixer heated to 80 ° C., 25 parts by mass of paste was gradually added and applied to 100 parts by mass of expanded dry food grains as a feed base obtained in the same manner as in Example 2. Was allowed to stand at room temperature to obtain a dry type pet food.
Ten panelists performed paste coating (stickiness, uniformity) according to the following evaluation criteria.
The results are shown in Table 4.
5 points of stickiness evaluation criteria 4 points are very good because there is little stickiness on the surface of the base material. 4 points because there is little stickiness on the surface of the base material and there is little sticking between the base materials. Point 1 point where the base material surface has a lot of stickiness, resulting in poor adhesion between the base materials. 4 points that are evenly coated on the surface. 3 points that are slightly unevenly coated on the surface of the substrate. 2 points that are normal. 1 point that is slightly covered with the surface of the substrate. 1 point is covered with the surface of the substrate. Very inferior

Compared with Comparative Example 5 and Comparative Example 6, the product of the present invention was capable of uniform coating with no stickiness.

Claims (2)

  Coating with a paste containing 10 to 200 parts by mass of starch and / or starch to 100 parts by mass of fats and oils solidified at 40 ° C. or less that has been heat-kneaded at 70 to 150 ° C. for 5 to 30 minutes. A method for producing a dry type, semi-moist type or soft dry type pet food. The method for producing a pet food according to claim 1, wherein the paste is used at a ratio of 5 parts by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the feed base material.