WO2024116422A1 - Aliment sec pour animaux de compagnie - Google Patents
Aliment sec pour animaux de compagnie Download PDFInfo
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- WO2024116422A1 WO2024116422A1 PCT/JP2023/002241 JP2023002241W WO2024116422A1 WO 2024116422 A1 WO2024116422 A1 WO 2024116422A1 JP 2023002241 W JP2023002241 W JP 2023002241W WO 2024116422 A1 WO2024116422 A1 WO 2024116422A1
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- pet food
- dry pet
- mass
- oil
- food
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/40—Feeding-stuffs specially adapted for particular animals for carnivorous animals, e.g. cats or dogs
- A23K50/42—Dry feed
Definitions
- the present invention relates to dry pet food. This application claims priority based on Japanese Patent Application No. 2022-192270, filed in Japan on November 30, 2022, the contents of which are incorporated herein by reference.
- Dry pet food is in high demand as a daily pet food due to its ease of handling and storage.
- dry pet food often contains a high proportion of powdered ingredients compared to pet foods with a high moisture content, such as soft dry food, semi-moist food, and wet food, and can be less palatable.
- Patent Document 1 describes an animal food that contains a grain-based shell component and a soft inner component that contains a lipid component, and that has a double structure in which the soft inner component is completely surrounded by the shell component, thereby improving the palatability of the animal food.
- modified pet foods can have a significantly different composition and structure from the pet food that pets normally eat. This raises concerns among pet owners that pet foods that have been artificially modified to improve palatability could have an adverse effect on their pets' health.
- the present invention was made in consideration of the above circumstances, and aims to provide a dry pet food that is not significantly different in composition and structure from general pet foods, and has improved palatability.
- a dry pet food comprising puffed pellets having a moisture content of 3 to 12% by mass, the oil and fat content being 10% by mass or more based on the total amount of the dry pet food;
- a dry pet food having an oil/fat seepage rate on the surface of the dry pet food of 0.06% or more under the following measurement conditions: (Measurement condition) (1) Measure the mass of a filter paper with an area of 420 x 600 cm2. (2) The filter paper is spread and placed on a plastic tray having external dimensions of width W705 mm, depth D462 mm, and height H57 mm. (3) 500 g of the dry pet food is evenly spread and placed on the filter paper spread on the tray.
- Oil/fat seepage rate (%) of the surface of the dry pet food [(mass of the filter paper measured in (5) above)/(mass of the filter paper measured in (1) above)] x 100 [2]
- the present invention makes it possible to provide dry pet food that is not significantly different in composition and structure from general pet foods, and has improved palatability.
- FIG. 2 is a cross-sectional view showing an example of a dry pet food manufacturing apparatus according to the present embodiment.
- FIG. 2 is a cross-sectional view for explaining a method for producing pet food granules using the apparatus of FIG. 1.
- 2 is an infrared absorption spectrum of an ethyl acetate extract of a substance that has seeped out onto the surface of the dry pet food of this embodiment.
- 1 is an example of an infrared absorption spectrum of a triglyceride.
- 2 is an infrared absorption spectrum of an ethyl acetate extract of a substance that has seeped out onto the surface of the dry pet food of this embodiment.
- 1 is an example of an infrared absorption spectrum of a protein.
- pet refers to an animal kept by a human. In a narrower sense, a pet is an animal kept as a pet by its owner. Furthermore, “pet food” refers to food for pets. The pet food of the present invention can be sold as "animal feed” or "animal food.”
- palatability is an indicator of whether a food is enjoyed by pets and is based on the texture, taste, smell, etc.
- the moisture content (wt%) of the pet food is determined by a normal pressure heat drying method.
- the moisture content determined by this method includes the moisture in the ingredients.
- the hardness (breaking hardness) of food granules is a value obtained by the following measurement method.
- a compression tester Texture Analyzer, model number: EZ-SX, manufactured by Shimadzu Corporation
- the breaking stress when the pet food granules are compressed at a constant compression speed is measured under the following conditions: Plunger: conical plunger with a diameter of 10 mm, Platform: flat plate, Compression speed: 60 mm/min, Lowest point of plunger: 2.25 mm (compression distance), Measurement temperature: 25°C.
- a plunger is pressed vertically from directly above the pellet at a constant speed to measure the stress.
- the peak (maximum) value of the stress is read as the value of the breaking stress.
- the measurement is repeated for 10 pellets to obtain an average value.
- the value of the breaking stress (unit: kgw) measured by the compression tester is multiplied by 9.8 to convert the numerical unit of breaking hardness into Newton (N).
- the hardness of the pet food granules is the value measured immediately after opening the pet food product within 30 days from the date of production, or the value measured under equivalent conditions.
- the arithmetic mean surface roughness Sa is calculated by observing the surfaces of the food granules (magnification: 40x, observation field area: 19-20 mm2 ) using a non-contact three-dimensional shape measuring device VR-3200 (manufactured by Keyence Corporation, using an L filter with a nesting index of 0.25 mm), and calculating the arithmetic mean roughness Sa for the surfaces of the food granules.
- L * , a * , and b * are values expressed by the L * a * b * color system measurement (JIS Z8729) standardized by the CIE (International Commission on Illumination).
- L * represents the lightness of a color, with a value of 0 representing a diffuse color in the black direction and a value of 100 representing a diffuse color in the white direction.
- a * b * represents chromaticity, and a * represents a hue between red and green, with a negative value representing a hue in the green direction and a positive value representing a hue in the red direction.
- b * represents a hue between yellow and blue, with a negative value representing a hue in the blue direction and a positive value representing a hue in the yellow direction.
- L * a * b * is expressed as a three-dimensional coordinate.
- a “complete nutritional food” is a pet food product that is intended to be fed to dogs or cats as the main daily meal and is nutritionally balanced so that the pet food and water alone can maintain the health of the animal at a specified growth stage.
- the standards for complete nutritional food can be those set by the Association of American Feed Control Officials (AAFCO).
- AAFCO Association of American Feed Control Officials
- a “complete nutritional food” may be one that meets the criteria for any of the following stages, regardless of the growth stage: "puppy/kitten stage/growth stage or growth,”"adult dog/cat stage/maintenance stage or maintenance,” or “pregnancy stage/lactation stage,” or it may be one that is “for all growth stages” or "for all stages” that meets all three of these stages.
- palatability is an indicator of whether a food is enjoyed by pets and is based on the texture, taste, smell, etc.
- the dry pet food according to this embodiment contains puffed pellets having a moisture content of 3 to 12% by mass.
- the moisture content of the puffed pellets is preferably 3.0 to 10.0% by mass, and more preferably 5.0 to 8.0% by mass.
- the dry pet food according to this embodiment has an oil/fat content of 10% by mass or more, preferably 10 to 15% by mass, and more preferably 10.5 to 14% by mass, based on the total amount of the dry pet food.
- the fat/oil content is 10% by mass or more, the palatability is likely to be good even if the dry pet food has a general composition and structure.
- the dry pet food according to this embodiment has an oil seepage rate on the surface of the dry pet food under the following measurement conditions (hereinafter also referred to as "37°C oil seepage rate”) of 0.06% or more, preferably 0.07% or more, and more preferably 0.08% or more. If the 37°C oil seepage rate is 0.06% or more, the palatability is likely to be good even if the dry pet food has a general composition and structure.
- the dry pet food according to this embodiment has an oil/fat seepage rate from the surface of the dry pet food under the following measurement conditions (hereinafter also referred to as "oil/fat seepage rate at 25°C") of preferably 0.02% or more, more preferably 0.03% or more, and even more preferably 0.04% or more.
- oil/fat seepage rate at 25°C is 0.02% or more, the palatability is likely to be good even if the dry pet food has a general composition and structure.
- the dry pet food according to this embodiment has improved palatability by increasing the amount of fat and oil contained in the food granules.
- a large amount of fat and oil remains on the surface of the food granules, creating a synergistic effect with the umami components derived from the proteins that adhere to the surface. This makes a big impact on pets when they first start eating, and makes them eat well.
- the appearance of the pet food gives the impression that the flavor has permeated the surface of the food granules more than with conventional dry pet foods, and the pet's appetite is also good, making it feel special.
- the puffed pellets preferably include pellets having surfaces with an arithmetic mean surface roughness Sa of 14 ⁇ m or more as measured using an L filter with a nesting index of 0.25 mm.
- the expanded granules include granules having surfaces with an arithmetic mean surface roughness Sa of 14 ⁇ m or greater, not only does it become easier to draw fats and oils into the interior of the food granules, but it also becomes easier to increase the amount of fat and oil absorbed while leaving a sufficient amount of fat and oil on the surface of the food granules.
- Expanded pellets containing pellets with surfaces having an arithmetic mean surface roughness Sa of 14 ⁇ m or more can be obtained, for example, by cutting pet food material discharged from an extruder (extrusion molding machine) after the material has expanded, to have a soft center with an exposed cross section and a peripheral portion that is harder than the center.
- Sa is preferably 30 ⁇ m or less, and more preferably 25 ⁇ m or less.
- the melting point of the oil or fat is preferably 30 to 40°C, more preferably 35 to 40°C, and even more preferably 38 to 39°C.
- the melting point of the oil is within the above-mentioned preferred range, it is easy to melt on the tongue of a pet (especially a cat), and the palatability is easily increased.
- the storage stability is easily improved while the palatability is increased.
- the substance that seeps out onto the surfaces of the food granules preferably contains at least one type selected from the group consisting of triglycerides and proteins, and more preferably contains triglycerides and proteins. If the substance that seeps onto the surface of the food granules contains triglyceride and/or protein, the dry pet food is more likely to be palatable.
- the dry pet food according to this embodiment preferably contains 3.0% by mass or more of a powdered palatability enhancer relative to the total amount of the dry pet food, more preferably 4.0% by mass or more, and even more preferably 5.0% by mass or more.
- a powdered palatability enhancer relative to the total amount of the dry pet food, more preferably 4.0% by mass or more, and even more preferably 5.0% by mass or more.
- the dry pet food according to this embodiment preferably has an L * value of 21-33, more preferably 22-32, and even more preferably 23-31 in the L * a * b * color system.
- L * value in the L * a * b * color system is within the above preferred range, pet owners are more likely to get the impression from the appearance of the pet food that the flavor has permeated the surfaces of the food granules than with conventional dry pet foods, and pets are more likely to eat the food and feel that it is special.
- the dry pet food according to this embodiment preferably has a b* value of 12-23, more preferably 13-22, and even more preferably 14-21 in the L * a * b * color system.
- b * value in the L * a * b * color system is within the above preferred range, pet owners are more likely to get the impression from the appearance of the pet food that the flavor has permeated the surface of the food granules than with conventional dry pet foods, and pets are more likely to eat the food and feel that it is special.
- the puffed granules include granules having a surface with an arithmetic mean surface roughness Sa of 14 ⁇ m or more as measured using an L filter with a nesting index of 0.25 mm, and the dry pet food preferably contains 30% by mass or more of wheat flour relative to the total amount of the dry pet food, more preferably 35% by mass or more, and even more preferably 40% by mass or more.
- the expanded granules include granules having surfaces with an arithmetic mean surface roughness Sa of 14 ⁇ m or more, and the wheat flour content is within the above-mentioned preferred range, the oil and fat will easily seep into the surface of the food granules, which will tend to improve palatability.
- the hardness of the food granules is preferably 10 to 90 N, more preferably 15 to 70 N, and even more preferably 20 to 50 N. If the hardness of the food granules is within the above preferred range, palatability is likely to be improved.
- the shape of the complete nutritional pet food according to this embodiment is not particularly limited as long as it is a shape suitable for consumption by pets.
- any shape can be applied, such as a sphere, an ellipsoid (go stone shape), a pellet, a cylinder, a polygonal prism, a hexahedron (plate shape), a cloverleaf shape, a heart shape, a star shape, a cross shape, and the like.
- the size of the food granules may be small enough for a pet to eat in one bite, or large enough for a pet to eat multiple times.
- the food granules are preferably pellet-shaped (granular or chunk-shaped) granules with a short diameter and long diameter of 3 to 25 mm when viewed from above and a thickness of 2.5 to 20 mm from the bottom surface (bottom end) to the top surface (top end) of the food granule on the horizontal table, more preferably pellets with a short diameter and long diameter of 3 to 13 mm and a thickness of 2.5 to 9 mm, and even more preferably pellets with a short diameter and long diameter of 6 to 12 mm and a thickness of 2.5 to 8 mm.
- the hardness can be easily adjusted to a preferred range when adjusted to a predetermined moisture content in the heating and drying processes during the pet food granule manufacturing process.
- Pet foods can be classified into complete nutritional foods given as regular meals, snacks given as treats, therapeutic foods containing specific ingredients used for sick pets, and other specialized foods, but the pet food of the present invention is suitably a complete nutritional food.
- powder ingredients and liquid ingredients known in the manufacture of pet food can be used.
- powder raw materials include cereals (corn, wheat, flour, wheat bran, rice, bread crumbs, barley, oats, rye, etc.), potatoes (sweet potatoes, potatoes, etc.), beans (whole soybeans, etc.), starches (wheat starch, corn starch, rice starch, potato starch, tapioca starch, sweet potato starch, sago starch, modified starch, etc.), vegetable proteins (corn gluten meal, wheat protein, bean protein, rice protein, potato protein, etc.), meat (beef, pork, sheep, deer, rabbit, etc., chicken, turkey, Examples of such ingredients include poultry meat such as quail and poultry; meals (chicken meal, pork meal, beef meal, mixed meals of these), seafood (fish such as tuna, bonito, horse mackerel, etc.; crustaceans such as shrimp and crab; mollusks such as oc
- Meal refers to meat or seafood that has been compressed and finely ground into powder. More specifically, powdered palatability enhancers include extracts of animal materials, extracts of plant materials, yeast extracts, dried yeast, and enzyme decomposition products of proteins derived from animals and plants.
- liquid raw materials include water, oils and fats (animal oils and fats such as chicken oil, lard, beef tallow, dairy fat, and fish oil; vegetable oils and fats such as olive oil, cacao oil, palm oil, palm kernel oil, coconut oil, coconut oil, and camellia oil), liquid palatability enhancers, liquid sugar, moisturizers, preservatives, emulsifiers, flavorings, colorants, and the like.
- composition of the dry pet food according to this embodiment examples include 30-50% by mass of wheat flour, 0-20% by mass of grains other than wheat flour, 10-30% by mass of meat, 5-20% by mass of animal fats and oils, 5-15% by mass of yeast, 2-10% by mass of seafood, and 2-10% by mass of additives such as vitamins, minerals, and amino acids.
- the dry pet food according to this embodiment is preferably coated with a coating agent, and more preferably coated multiple times.
- Coating agents include fats and oils, powdered palatability enhancers, and the like.
- the oil and fat of the coating agent may be vegetable oil and fat or animal oil and fat.
- One type of oil and fat may be used, or two or more types may be used in combination.
- the oil and fat may be liquid at room temperature or solid at room temperature. In order to make the oil and fat liquid, it is used after heating as necessary.
- the fats and oils preferably contain animal fats and oils, because high palatability can be easily obtained. Examples of animal fats and oils include chicken oil, lard, beef tallow, dairy fat, etc. Only one type of animal fat and oil may be used alone, or multiple types may be used in combination.
- the powdered palatability enhancer at least one selected from the group consisting of enzymatic decomposition products of animal raw materials, enzymatic decomposition products of vegetable raw materials, extracts of animal and vegetable raw materials, and yeast extracts can be used.
- the enzymatic hydrolysates of animal raw materials include enzymatic hydrolysates of chicken meat, enzymatic hydrolysates of chicken liver (hereinafter also referred to as chicken liver), enzymatic hydrolysates of pork meat, enzymatic hydrolysates of pork liver, enzymatic hydrolysates of beef, enzymatic hydrolysates of beef liver, and enzymatic hydrolysates of seafood.
- Examples of the enzymatic hydrolysate of a plant-based raw material include enzymatic hydrolysates of beans (soybeans, etc.) and enzymatic hydrolysates of tubers (potatoes, etc.).
- Examples of yeast extracts include brewer's yeast extract, baker's yeast extract, and torula yeast extract.
- the palatability enhancer may be used alone or in combination of two or more kinds.
- the method for producing the pet food according to the present embodiment can be a known method, and is not particularly limited as long as it satisfies the above-mentioned configuration of the present embodiment.
- Known methods include a method for producing pet food in the following order: a granulation step, a drying step, and a coating step.
- the raw material mixture is granulated to obtain food granules.
- Known methods can be used for mixing the raw materials to obtain a raw material mixture, and for forming (granulating) the raw material mixture into granules.
- a method of producing expanded granules using an extruder can be suitably used.
- the method described in "Clinical Nutrition for Small Animals, 5th Edition" (Michael S. Hand, Craig D. Thatcher, Rebecca L. Remillard, Philip Roudebusg, Bruce J. Novotny, eds., Mark Morris Associates, 2014; pp. 209-215) can be applied.
- the raw materials of the puffed pellets are crushed as necessary and then mixed. They may be mixed while being crushed using a grinder or the like. Water (not included in the raw material composition) is added as necessary to obtain a raw material mixture.
- the obtained raw material mixture is put into an extruder, heated and pressurized, and then extruded from the outlet. At the outlet, a plate with holes of a specified shape and a cutter that cuts the raw material mixture extruded from the plate to a specified length (thickness) are provided.
- the raw material mixture is extruded from the holes in the plate and cut by the cutter to be molded into a specified shape, and at the same time, the pressure is released from the pressurized state to normal pressure, causing the water vapor in the raw material mixture to expand, which causes the raw material mixture to expand and obtain porous particles.
- Fig. 1 is a cross-sectional view showing a schematic view of the main part of the device.
- Fig. 2 is a cross-sectional view for explaining a method for producing pet food granules using the device shown in Fig. 1.
- reference numerals 1 indicate food granules
- 2 indicate a kneaded material
- 11 indicate an extruder.
- the extruder 11 heats and kneads the raw material mixture, and discharges the kneaded material 2.
- the discharge port of the extruder 11 is provided with a die plate 12 that discharges the kneaded material 2 in a rod shape.
- a cutter for cutting the kneaded material 2 to a predetermined length is provided near the discharge port of the die plate 12.
- Reference numeral 13 in Fig. 2 indicates the cutting position by the cutter. For example, a rotary blade is used as the cutter.
- the die plate 12 has a first opening 12a formed on the extruder 11 side and a second opening 12b on the cutter side.
- the first opening 12a gradually decreases in diameter in a direction toward the second opening 12b, and is connected to the second opening 12b via a minimum inner diameter portion 12c.
- the inner diameter of the second opening 12b is constant.
- the minimum inner diameter of the flow path is indicated by r, and the inner diameter of the second opening 12b is indicated by R.
- the kneaded material 2 that has been under high heat and pressure in the extruder 11 passes from the first opening 12a of the die plate 12 through the flow path in the die plate 12, is extruded under normal pressure from the minimum inner diameter section 12c, and expands in the second opening 12b.
- the material then expands sufficiently as it travels toward the exit of the second opening 12b (the discharge outlet of the die plate 12), and after it begins to shrink inside the second opening 12b, it is discharged from the discharge outlet of the die plate 12 and is cut by a cutter (cutting position 13) to form (granulate) the food granules 1.
- the shape of food granules 1 formed in this way is columnar, obtained by cutting rod-shaped kneaded material 2 along a plane perpendicular to the length direction.
- the cut surfaces perpendicular to the length direction (the upper and lower surfaces perpendicular to the thickness direction of the column) have a greater arithmetic mean surface roughness Sa than the side surfaces parallel to the length direction.
- the short diameter and long diameter of food granule 1 are preferably 3 to 25 mm, and the thickness from the bottom surface (lower end in the thickness direction) to the top surface (upper end in the thickness direction) of the food granule when placed on a horizontal stand is 2.5 to 20 mm, it is more preferable that the short diameter and long diameter are 3 to 13 mm and the thickness is 2.5 to 9 mm, and it is even more preferable that the short diameter and long diameter are 6 to 12 mm and the thickness is 2.5 to 8 mm.
- inner diameter R of second opening 12b is 3.5 times or more (R/r ⁇ 3.5) the minimum inner diameter r of the flow path in die plate 12.
- the upper limit of R/r which represents the ratio of the inner diameters, is preferably 7 or less, and more preferably 6.5 or less.
- kneaded material 2 can expand sufficiently, so that larger air bubbles are formed inside the kneaded material and larger holes are formed on the cut surface.
- the cut surface of food granule 1 has greater surface roughness, resulting in food granules with surfaces with Sa of 14 ⁇ m or greater.
- the size of the minimum inner radius r is designed according to the size of the food granules to be obtained.
- the shape of the outlet of minimum inner diameter section 12c is designed according to the shape of the food granules to be obtained.
- the distance D from when the kneaded material 2 leaves the minimum inner diameter portion 12c to when it leaves the second opening 12b is set to a length required for the kneaded material 2 proceeding through the second opening 12b to begin to shrink after being sufficiently expanded.
- the minimum inner diameter r of the flow path is 3 to 10 mm
- the inner diameter R of the second opening 12b is 9 to 40 mm
- the distance D is 10 to 22 mm. More preferably, r is 3 to 6 mm, R is 12 to 26 mm, and D is 15 to 20 mm.
- the granules obtained in this manner are dried, if necessary, until they reach a specified moisture content to obtain expanded granules (food granules).
- a drying step is essential.
- the moisture content of the granules discharged from the extruder is 10 to 30% by mass.
- the temperature of the pellets discharged from the extruder depends on the heating temperature in the extruder, and is, for example, 90 to 150°C.
- the method for drying the granules discharged from the extruder can be appropriately used by a known method.
- a hot air drying method in which hot air is blown onto the granules to dry them, a reduced pressure drying method, a method of frying in oil, etc. are included.
- a hot air drying method using a conveyor-type hot air dryer is preferable.
- the drying conditions may be any conditions that can evaporate the moisture in the granules by raising the temperature of the granules to 100°C or higher without causing thermal denaturation of the granule components, and adjust the moisture content to a desired level.
- the temperature of the hot air contacting the granules is preferably 100 to 140°C, more preferably 100 to 110°C.
- the drying time is not particularly limited, and is performed for about 5 to 20 minutes, for example.
- the pet food may be further coated with a coating agent such as oils, fats, powder palatability enhancers, etc.
- a coating agent such as oils, fats, powder palatability enhancers, etc.
- the coating method is not particularly limited, and can be performed by, for example, a vacuum coating method.
- the vacuum coating method is a method in which heated food granules and the coating agent are in contact with or attached to each other, and then the pressure is reduced and the mixture is slowly released to the atmosphere.
- the coating agent may be in liquid or powder form.
- the coating can improve the palatability (eating ability) of pets. In this embodiment, it is preferable to perform coating multiple times.
- Example 1 Production of dry pet food
- Pet food granules were produced using the apparatus shown in Figures 1 and 2.
- the minimum inner diameter r of the flow path in the die plate 12 was 4.5 mm
- the inner diameter R of the second opening was 18 mm
- the distance D was 18 mm.
- the ratio of R/r was 4.
- the outlet of the minimum inner diameter portion 12c and the outlet of the second opening 12b were both circular.
- the raw materials excluding animal fats and some of the palatability enhancers, were mixed in the proportions shown in Table 1, and water and steam were added and the mixture was heated at 90 to 100°C for 3 minutes to obtain a raw material mixture.
- the obtained raw material mixture was then supplied to an extruder and heated at 120 to 135°C for 30 seconds while being kneaded, and the kneaded mixture was then discharged from the die plate and cut to form cylindrical food granules with a diameter of 10 mm and a thickness of 4.5 mm.
- the resulting food granules were then dried in a dryer at about 100-110° C. for about 15 minutes, and the moisture content was adjusted to 6% by mass. After drying, the pellets were coated twice with animal fats and oils and a palatability enhancer to obtain pet food granules (1).
- Pet food granules (2) were obtained in the same manner as in Example 1, except that the raw materials were changed to the composition shown in Table 1 and that the animal fats and oils and some of the palatability enhancers were coated only once.
- the filter paper was spread and placed on a plastic tray (product name: tray container; manufactured by Gifu Plastic Industry Co., Ltd.) having outer dimensions of width W705 mm, depth D462 mm, and height H57 mm.
- a plastic tray product name: tray container; manufactured by Gifu Plastic Industry Co., Ltd.
- the amount of pet food granules (1) or (2) shown in Table 2 was evenly spread and placed on the filter paper spread on the tray.
- the tray with the dry pet food placed on it was left standing in an electric oven heated to 37° C. for 30 minutes, or left standing at room temperature (25° C.) for 30 minutes.
- the tray is removed from the electric oven, or the tray is left to stand at room temperature (25° C.) for 30 minutes, and the mass of the filter paper is measured.
- Oil/fat seepage rate (%) of the surface of the dry pet food [(mass of the filter paper measured in (5) above)/(mass of the filter paper measured in (1) above)] x 100
- Pet food granules (1) or (2) were used as pet food P, and a commercially available pet food (granular pet food composed of pet food granules with cream filled inside a grain-based outer shell; Sheba (registered trademark) Duo (registered trademark)) was used as pet food Q.
- the palatability of pet food P and pet food Q was evaluated by a method of comparing the amount of food consumed. The test was conducted over two days using 20 cats as monitors. On the first day, pet foods P and Q were simultaneously given to each cat, one from the left and the other from the right, in a prescribed feeding amount, and the amount of pet food eaten by the cat was measured when the cat had finished eating either one or 30 minutes later.
- the ratio of the amount of pet food Q consumed to the amount of pet food P consumed was calculated as a percentage relative to the total mass of pet food consumed by one cat on day 1. The percentages obtained based on the number of monitored cats were averaged to obtain the result for day 1.
- pet foods P and Q were given to each cat, one from the right and the other from the left, in the opposite order to the first day.
- the same amount of food as on the first day was given to each cat, and the amount of pet food eaten by the cat was measured when the cat had finished eating either food or one hour later.
- the results for the second day were obtained using the same calculation method as on the first day.
- Pet food granules (3) were obtained in the same manner as in Example 1, except that the raw materials were changed to the composition shown in Table 3.
- Sample A Commercially available dry food (product name: Physicallife; manufactured by Unicharm Corporation)
- Sample B Pet food granules
- Sample C Pet food granules (3)
- Table 4 (Measurement condition) Apparatus: SE7700 (manufactured by Nippon Denshoku Industries Co., Ltd.).
- Light source D65 Field of view: 2°
- Fig. 5 is an infrared absorption spectrum of an ethyl acetate extract of a substance that has exuded onto the surface of the pet food granules (1).
- Fig. 6 is an example of an infrared absorption spectrum of a protein. From the results shown in FIG. 5, it was confirmed that the infrared absorption spectrum of the ethyl acetate extract of the specimen was similar to the infrared absorption spectrum of protein.
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Abstract
Aliment sec pour animaux de compagnie comprenant des granulés soufflés ayant une teneur en humidité de 3 à 12 % en masse, la teneur en huile et en graisse étant égale ou supérieure à 10 % en masse sur la base de la quantité totale de l'aliment sec pour animaux de compagnie, et le taux d'exsudation d'huile et de graisse sur la surface de l'aliment sec pour animaux de compagnie étant égal ou supérieur à 0,06 %.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000060443A (ja) * | 1998-06-11 | 2000-02-29 | Nippon Flour Mills Co Ltd | ドライペットフ―ド及びその製造方法 |
JP2012217381A (ja) * | 2011-04-08 | 2012-11-12 | Nisshin Pet Food Kk | ドライペットフード |
WO2017056275A1 (fr) * | 2015-09-30 | 2017-04-06 | ユニ・チャーム株式会社 | Aliment pour animal de compagnie |
JP2019097416A (ja) * | 2017-11-29 | 2019-06-24 | ユニ・チャーム株式会社 | キャットフード |
JP2020074740A (ja) * | 2018-11-07 | 2020-05-21 | ユニ・チャーム株式会社 | ペットフード用フード粒 |
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EP3622826A1 (fr) * | 2013-10-29 | 2020-03-18 | Mars, Incorporated | Aliments secs pour animaux domestiques comprenant un revêtement améliorant l'appétibilité |
JP6355708B2 (ja) | 2016-12-27 | 2018-07-11 | グローリー株式会社 | 台間装置 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000060443A (ja) * | 1998-06-11 | 2000-02-29 | Nippon Flour Mills Co Ltd | ドライペットフ―ド及びその製造方法 |
JP2012217381A (ja) * | 2011-04-08 | 2012-11-12 | Nisshin Pet Food Kk | ドライペットフード |
WO2017056275A1 (fr) * | 2015-09-30 | 2017-04-06 | ユニ・チャーム株式会社 | Aliment pour animal de compagnie |
JP2019097416A (ja) * | 2017-11-29 | 2019-06-24 | ユニ・チャーム株式会社 | キャットフード |
JP2020074740A (ja) * | 2018-11-07 | 2020-05-21 | ユニ・チャーム株式会社 | ペットフード用フード粒 |
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