Systems and methods for food product extrusion

Abstract

A system for producing food product may include an inner tube configured to extrude a first component, and an outer tube provided about the inner tube to define an annular space through which a second component is extruded, the inner and outer tubes, alone or in conjunction with a nozzle or other extrusion mechanism, defining an outlet. Additionally, a collagen head can be configured to apply a layer of collagen gel over the second component. The inner and outer tubes are sized, and flow rate may be configured such that an initial diameter of the first component exiting the outlet is substantially smaller than a final diameter of the first component, and an initial thickness of the second component exiting the outlet is substantially greater than a final thickness of the second component.

What is claimed is: 
     
         1 . A food product comprising:
 a first extruded component comprising a meat component;   a second extruded component comprising a meat-based carrier and inclusions, the second extruded component circumferentially surrounding the first extruded component, the inclusions being fully suspended within the meat-based carrier; and   an outer layer circumferentially surrounding the second extruded component;   wherein a diameter or width of the inclusions are greater than a thickness of the outer layer causing the second extruded component and the outer layer to radially outwardly bulge.   
     
     
         2 . The food product of  claim 1 , wherein a thickness of the second extruded component at locations between adjacent inclusions is less than the diameter of the inclusions. 
     
     
         3 . The food product of  claim 1 , wherein the inclusions are visible through the outer layer and the second extruded component. 
     
     
         4 . The food product of  claim 1 , wherein a thickness of the second extruded component at locations between adjacent inclusion is about 2 mm. 
     
     
         5 . The food product of  claim 1 , wherein dimensions of the food product change from an initial state at which the food product exits an extruder to a final state occurring at a predetermined time after the food product exits the extruder. 
     
     
         6 . The food product of  claim 5 , wherein:
 the dimensions of the food product at the initial state comprise an initial diameter of the first extruded component and an initial thickness of the second extruded component, and the dimensions of the food product at the final state comprise a final diameter of the first extruded component and a final thickness of the second extruded component;   the initial diameter of the first extruded component is less than the final diameter of the first extruded component; and   the initial thickness of the second extruded component is greater than a final thickness of the second extruded component.   
     
     
         7 . The food product of  claim 6 , wherein:
 the final diameter of the first extruded component increases about 20% to 60% of the initial diameter of the first extruded component.   
     
     
         8 . The food product of  claim 6 , wherein:
 the final thickness of the second extruded component decreases about 40% to 60% of the initial thickness of the second extruded component.   
     
     
         9 . The food product of  claim 6 , wherein:
 the final diameter of the first extruded component increases about 20% to 60% of the initial diameter of the first extruded component; and   the final thickness of the second extruded component decreases about 40% to 60% of the initial thickness of the second extruded component.   
     
     
         10 . The food product of  claim 6 , wherein:
 the final diameter of the first extruded component increases about 67% of the initial diameter of the first extruded component.   
     
     
         11 . The food product of  claim 6 , wherein:
 the initial diameter of the first extruded component is about 16 mm and the final diameter of the first extruded component is greater than about 25 mm.   
     
     
         12 . The food product of  claim 6 , wherein:
 the initial thickness of the second extruded component is about 9 mm and the final diameter of the second extruded component is about 3 mm.   
     
     
         13 . The food product of  claim 6 , wherein:
 the initial diameter of the first extruded component is about 16 mm and the final diameter of the first extruded component is greater than about 25 mm; and   the initial thickness of the second extruded component is about 9 mm and the final diameter of the second extruded component is about 3 mm.   
     
     
         14 . The food product of  claim 1 , wherein the inclusions comprise a plant-based material. 
     
     
         15 . The food product of  claim 1 , wherein the inclusions comprise a fruit or vegetable. 
     
     
         16 . The food product of  claim 1 , wherein the first extruded component and the second extruded component are for human consumption. 
     
     
         17 . A food product comprising:
 a first component extruded at a first flow rate from a first outlet;   a second component surrounding the first component and co-extruded therewith, the second component extruded at a second flow rate from a second outlet, wherein the second flow rate is less than the first flow rate; and   a casing material surrounding the second component,   wherein the first and second components are extruded such that an initial diameter of the first component exiting the first outlet is less than a final diameter of the first component, and an initial thickness of the second component exiting the second outlet is greater than a final thickness of the second component, and   wherein the second component has a plurality of inclusions, the inclusions being of a size smaller than the second outlet but larger than the final thickness of the second component.   
     
     
         18 . The food product of  claim 17 , wherein the second flow rate is more than half of the first flow rate. 
     
     
         19 . The food product of  claim 17 , wherein the first flow rate is about 5600 pounds per hour. 
     
     
         20 . The food product of  claim 19 , wherein the second flow rate is about 2400 pounds per hour. 
     
     
         21 . The food product of  claim 17 , wherein the inclusions have a size between about 0.8 mm to about 1.7 mm. 
     
     
         22 . The food product of  claim 17 , wherein the inclusions have a size between 0.4 mm to about 2.8 mm. 
     
     
         23 . The food product of  claim 17 , wherein the inclusion include a first type of particle and a second type of particle, the first type of particle having a size of about 0.8 mm to about 1.7 mm and the second type of particle having a size of about 0.4 mm to about 2.8 mm. 
     
     
         24 . The food product of  claim 17 , wherein the final thickness of the second component is about 2.2 mm. 
     
     
         25 . The food product of  claim 17 , wherein the relative amounts by weight of the first component and the second component is about 70% and 30%, respectively. 
     
     
         26 . The food product of  claim 17 , wherein the final diameter of the first component increases in a range of about 20% to about 60% from the initial diameter of the first component. 
     
     
         27 . The food product of  claim 17 , wherein the final thickness of the second component decreases in a range of about 40% to about 60% of the initial thickness of the second component. 
     
     
         28 . The food product of  claim 17 , wherein the final thickness of the second component decreases to about 2 mm relative to an initial thickness of about 5 mm. 
     
     
         29 . The food product of  claim 17 , wherein the final thickness of the second decreases by at least about 67% relative to the initial thickness of the second component.