ANIMAL FOOD AND METHOD FOR PRODUCING SAME
An animal food has a soft, chewy texture and a low water activity, includes starches such as wheat flour, wheat gluten, glycerin, soy flour, and high fructose corn syrup; a source of protein such as wheat gluten; polyols such as propylene glycol; distilled mono-glycerides; and a source of fat such as animal-based and vegetable-based fats, and preferably has a springiness, resilience, and hardness within a desired range. The animal food is preferably extruded.
1 . An animal food comprising:
a source of starch;
a source of protein;
a source of fat;
distilled mono-glycerides; and
a polyol other than distilled mono-glycerides,
wherein the animal food has a springiness of from 0.6 to 1.0, a resilience of from 0.1 to 0.6, and a hardness of from 50 to 100 grams.
2 . The animal food according to claim 1 , wherein the water activity of the food is from 0.5 to 0.7.
3 . The animal food according to claim 1 , wherein the source of starch comprises wheat flour in an amount of from 20% to 65% and soy flour in an amount of from 5% to 25%.
4 . The animal food according to claim 1 , wherein the source of fat is present in the animal food in an amount of 1% to 15%.
5 . The animal food according to claim 1 , wherein the polyol comprises glycerin in an amount of from 5% to 35%; high fructose corn syrup in an amount from 3% to 25%; and propylene glycol in an amount of from 1% to 15%.
6 . The animal food according to claim 1 , wherein the animal food comprises sulfur in an amount less than 1%.
7 . The animal food according to claim 1 , wherein the animal food comprises:
20% to 65% wheat flour;
5% to 25% soy flour;
3% to 25% high fructose corn syrup;
1% to 15% wheat gluten;
1% to 15% fat;
5% to 35% glycerin;
1% to 15% propylene glycol;
0.2% to 0.7% distilled mono-glycerides; and
sulfur in an amount less than 0.1%.
8 . The animal food according to claim 1 , wherein the density of the animal food is from 300 to 500 kg/m 3 .
9 . The animal food according to claim 1 , wherein the fiber content of the animal food is from 0.5% to 1%.
10 . The animal food according to claim 1 , wherein an internal structure of the animal food is a foam-like structure comprising a radially expanded, continuous matrix of voids.
11 . The animal food according to claim 1 , wherein the animal food is fresh animal food.
12 . The animal food according to claim 11 , wherein, when the animal food is aged, the animal food has a springiness of from 0.5 to 0.95, a resilience of from 0.1 to 0.4, and a hardness of from 50 to 300 grams.
13 . An animal food comprising:
wheat flour;
soy flour;
high fructose corn syrup;
wheat gluten;
fat;
glycerin;
propylene glycol; and
distilled mono-glycerides.
14 . The animal food according to claim 13 , wherein the animal food comprises:
20% to 65% wheat flour;
5% to 25% soy flour;
3% to 25% high fructose corn syrup;
1% to 15% wheat gluten;
1% to 15% fat;
5% to 35% glycerin;
1% to 15% propylene glycol;
0.2% to 0.7% distilled mono-glycerides; and
sulfur in an amount less than 0.1%.
15 . The animal food according to claim 13 , wherein
the animal food has a springiness of from 0.6 to 1.0, a resilience of from 0.1 to 0.6, and a hardness of from 50 to 100 grams, and
a water activity of the animal food is from 0.5 to 0.7.
16 . The animal food according to claim 13 , wherein the density of the animal food is from 300 to 500 kg/m 3 .
17 . The animal food according to claim 13 , wherein the fiber content of the animal food is from 0.5% to 1%.
18 . The animal food according to claim 13 , wherein an internal structure of the animal food is a foam-like structure comprising a radially expanded, continuous matrix of voids.
19 . The animal food according to claim 13 , wherein the animal food is fresh animal food.
20 . The animal food according to claim 13 , wherein, when the animal food is aged, the animal food has a springiness of from 0.5 to 0.95, a resilience of from 0.1 to 0.4, and a hardness of from 50 to 300 grams.
21 . The animal food according to claim 13 , wherein the animal food comprises:
35% to 45% wheat flour;
15% to 25% glycerin;
8% to 15% soy flour;
8% to 15% high fructose corn syrup;
4% to 8% propylene glycol;
1% to 5% wheat gluten;
4% to 8% poultry fat;
0.2% to 0.6 distilled mono-glycerides;
0.01% to 0.05% sulfur;
1% to 4% minerals, colorants, and vitamins; and
1% to 3% process water.
22 . A method for producing an animal food comprising:
feeding a primary mixture into an extruder, the primary mixture comprising a source of starch, a source of protein, a source of fat, distilled mono-glycerides, and a polyol other than distilled mono-glycerides;
heating the primary mixture in the extruder;
extruding the heated mixture from the extruder to form an extruded product; and
collecting the extruded product after it exits the extruder;
wherein the extruded product has a springiness of from 0.6 to 1.0, a resilience of from 0.1 to 0.6, and a hardness of from 50 to 100 grams.
23 . The method according to claim 22 , wherein, in the extruder, the primary mixture is heated to a temperature of 80° C. or greater.
24 . The method according to claim 22 , wherein the extruded product expands as it exits the extruder as a result of a pressure drop.
25 . The method according to claim 22 , wherein the primary mixture comprises wheat flour, glycerin, soy flour, high fructose corn syrup, propylene glycol, wheat gluten, fat, and distilled mono-glycerides.
26 . The method according to claim 22 , wherein the primary mixture comprises:
20% to 65% wheat flour;
5% to 25% soy flour;
3% to 25% high fructose corn syrup;
1% to 15% wheat gluten;
1% to 15% poultry fat;
5% to 35% glycerin;
1% to 15% propylene glycol;
0.2% to 0.7% distilled mono-glycerides; and
sulfur in an amount less than 0.1%.
27 . The method according to claim 22 , wherein the density of the animal food is from 300 to 500 kg/m 3 .
28 . The method according to claim 22 , wherein the fiber content of the animal food is from 0.5% to 1%.
29 . The method according to claim 22 , wherein an internal structure of the extruded product is a foam-like structure comprising a radially expanded, continuous matrix of voids.
30 . The animal food according to claim 22 , wherein, when the extruded product is aged, the extruded product has a springiness of from 0.5 to 0.95, a resilience of from 0.1 to 0.4, and a hardness of from 50 to 300 grams.