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Aerated polymeric composition

a technology of polymer composition and polymer, applied in the field of aerated polymer composition, to achieve the effect of increasing allowing elasticizing of protein, and reducing the amount of bicarbona

Inactive Publication Date: 2006-07-27
SERGEANTS PET CARE PRODS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] Water is added to the dry blend as part of a liquid slurry that is added to the dry blend before or after the addition of the leavening agent. This forms a polymeric composition. The slurry is added so that an amount of water is available to react with the chemical leavening agent to thereby cause the formation of CO2 and, resulting in the aerated construction. Additionally, it is preferred to add glycerin or propylene glycol, or similar processing aids, in with the slurry. Sodium metabisulfite is also preferred for inclusion in the slurry as it affects the softness of the structure. The sodium metabisulfite will cleave sulfite bonds and relax the protein. Magnesium stearate may also be used as a processing aid to enhance flow and reduce stickiness.
[0010] Dependent upon the desired characteristics of the end product, the amount of bicarbonate, or leavening agent, and water added will be varied. If a more aerated construction is desired, the amount of bicarbonate will be increased. Water is important as an additive, because this helps to plasticize the protein and allow elasticizing of the protein.
[0011] It is preferred to extrude or injection mold the polymeric composition to form the desired end product. However, other methods may be used to form a finished product of a desired shape and size. Following the shaping of the aerated polymeric composition, the aerated polymeric composition is dusted or coated with a substance to reduce sticking. Coatings could include starch dusting, spraying with oil, or coating with cellulose or other compounds.
[0012] Once the shape of the extruded or injection molded product has been formed, it is preferred to thermally set the aerated polymeric composition to form a product. Thermal setting is desired because it causes the protein to denature, and thereby causes the individual protein strands to cross-link and associate with one another. This will cause the resultant product to have a unique structure and texture that is ductile, pliable, and somewhat elastic.

Problems solved by technology

These known chew and treat products tend to be of a dense nature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0043] A method for producing co-extruded pet chews was practiced. In particular, tests were conducted to determine if dog chews could be co-extruded using a protein polymeric material. Products with and without a leavening agent were made. As such, the present invention relates to methods for co-extruding protein polymers, that are aerated and formed into pet treats or chews. The extruders used in this Example were an X-85 single screw extruder and a TX-57 twin screw extruder, both are manufactured by the Wenger Manufacturing Co. Any shape can be used to demonstrate this invention; however, in the present Example, a bone shape was used, with a round center for the secondary extrusion. The X-85 was used to form the outside extrusion flow, and the TX-57 was used to form the inside extrusion flow. The polymeric material used for both the inside and outside extrusion flows was a flowable formulated protein polymer. The base polymer formula consisted of the following constituents:

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example 2

[0057] The trials of Example 1 were further continued. In this Example, 9 test runs were conducted. The present Example relates to the continued development of formulations for a unique pet chew, as well as texture and shape configuration development. The Example is directed to aerating the protein polymer and on the merging of two different polymeric materials, a starch polymer and a protein polymer. Resultantly, a unique product with dual textures was produced. The protein polymeric material was ductile, while the starch polymer was more crystalline. New configurations were evaluated, as well as co-extrusion configurations. The below information discloses recipe information, preconditioning information, and extrusion information. The extrusion information for the runs was as follows:

Run Number123DRY RECIPE INFORMATION:Dry Recipe Moisture% wb6.876.87Dry Recipe Densitykg / m3485485485Dry Recipe Ratekg / hr505050Feed Screw Speedrpm1199PRECONDITIONING INFORMATION:Preconditioner Speedrpm...

example 3

[0081] The present Example discloses a process for producing protein polymer chew sticks, which are intended as pet chews for older dogs, which have difficulty chewing harder materials, and for those dogs which typically do not chew. A Wenger TX57 twin screw extruder was selected as the device for extrusion.

[0082] The pet treats were formed by extruding the protein polymeric formula into a rope that was cut into various lengths. As seen below, a number of processes and formulations were tried to determine the preferred method and formula for producing a desired resultant product. The extrudate was then heated to denature the protein.

[0083] The formulas used were as follows:

9683 - Recipe Reference NumberKgPoundsPercentIngredient49.68109.5287.27Wheat Gluten1.433.162.52Sodium Haxematte Phosphate1.433.162.52Solka Flok 9000.461.020.81Magnesium Stearate1.723.803.03Beef Broth0.440.970.77Caramel Color1.152.532.02Glycerol Monostearate0.230.500.40Red #40 Lake0.380.840.67Sodium Bicarbonate...

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Abstract

The present invention relates to an aerated polymeric composition. The composition includes a protein polymer and an agent or method for causing porosity in the finished aerated polymeric composition, such as a leavening agent. Additionally, the present invention relates to methods for forming the aerated polymeric composition, in particular, methods for forming aerated pet treats or chews.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority from Provisional Application Ser. No. 60 / 647,499 filed on Jan. 27, 2005, which is hereby incorporated by reference in its entirety.FIELD OF INVENTION [0002] The present invention is directed to an aerated polymeric composition, with the composition formed from a protein polymer and an agent or method for causing porosity in the finished aerated polymeric composition, such as a leavening agent. Additionally, the present invention relates to methods for forming the aerated polymeric composition, in particular, methods for forming aerated pet treats or chews. BACKGROUND OF INVENTION [0003] Plant protein polymers have been known for use in a variety of compositions. In particular, it has been known to use wheat gluten and related plant protein compositions to form a variety of chews and treats, as identified in U.S. Pat. No. 5,665,152 and applied to pet treats. These known chew and treat products tend to be ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D85/78
CPCA23K1/001A23K1/003A23K1/004A23K1/1631A23K1/182A23K1/1846A23K1/1886A23K20/147A23K20/20A23K40/00A23K40/20A23K40/25A23K40/30A23K50/40A23K50/50A23K50/70
Inventor LEVIN, MARKNIE, LI
Owner SERGEANTS PET CARE PRODS
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