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US4371557A Expired / Lapsed US ⏱️ 0.0 years remaining

Maintenance of protein quality in foods containing reducing sugars

Assignee: Gaines Pet Foods Corp
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Filing: 1981-01-21
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Granted: 1983-02-01
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Expires: 2001-01-21
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Abstract

Abstract The object of the invention is to provide an improved proteinaceous food product and a process for preparing it. The current commercial production of proteinaceous food products often employs the use of reducing sugars under conditions which result in the loss of protein quality due to the Maillard reaction. The present invention improves upon these food products and provides a process for stabilizing the protein quality of them. According to the invention, an effective amount of a non-essential free amino acid is incorporated into the food composition to save the protein quality from degradation. A preferred group of products are intermediate moisture products, particularly pet foods, which contain reducing sugars such as corn syrup and high fructose corn syrup to serve as water binders. The preferred non-essential amino acid additive according to the present invention is glycine and its soluble salts.

Inventors

  • 👤 Maureen A. Oppy
  • 👤 Dayle A. S. Nelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 22:45
CPC Classifications
A; A23; A23K; A23K20/00; A23K20/10; A23K20/142; Y; Y10; Y10S; Y10S426/00; Y10S426/805

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 80 words
An improved proteinaceous, nutritionally-balanced pet food composition containing a protein content of from 15 to 25% by weight, at least about 8% by weight reducing sugar and from 15% to 50% by weight of moisture, said reducing sugar and moisture being present in amounts normally susceptible to causing the loss of protein quality and further containing glycine or a soluble salt thereof in an amount of from about 0.25% to 1% by weight and effective to stabilize the protein quality.
Claim 2
Dependent Claim 80 words
An improved proteinaceous, nutritionally-balanced pet food composition containing a protein content of from 15 to 25% by weight, at least about 8% by weight reducing sugar and from 15% to 50% by weight of moisture, said reducing sugar and moisture being present in amounts normally susceptible to causing the loss of protein quality and further containing glycine or a soluble salt thereof in an amount of from about 0.25% to 1% by weight and effective to stabilize the protein quality.
Claim 3
Dependent Claim 30 words
An improved pet food composition according to claim 1 wherein the reducing sugar comprises a member selected from the group consisting of fructose, dextrose, glucose, maltose, corn syrup, and honey.
Claim 4
Dependent Claim 18 words
An improved pet food composition according to claim 1 which comprises having a PER of 2.5 or greater.

References Cited (Backward Citations)

US3202514A Cited
US3617307A Cited
US3415655A Cited
US3911146A Cited
US3900578A Cited
US3922365A Cited
US3946123A Cited
US4058633A Cited
US4282254A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-01-31 1986-08-02 1987-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-01-31 1990-08-02 1991-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-01-31 1994-08-02 1995-02-01 $7700.00 Window Closed / Lapsed

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