US4089978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pet food acceptability enhancer
Assignee: Gaines Pet Foods Corp
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Filing: 1976-03-30
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Granted: 1978-05-16
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Expires: 1996-03-30
Abstract
Abstract The palatability of animal foods is increased by incorporating therein an effective amount of a palatability improving composition prepared by reacting an aqueous mixture of a reducing sugar, animal blood, yeast and fat with lipase and protease, preferably as a mixture such as pancreatic lipase, at moderate temperature and then heating the resulting mixture to an elevated temperature to more fully develop the flavor and inactivate the enzymes. This palatability improving composition is preferably incorporated into an animal food, such as a nutritionally balanced dog food, by coating it thereon in an amount effective to increase the palatability of the animal food.
Inventors
- 👤 Joaquin Castro Lugay
- 👤 Gerhard Julius Haas
- 👤 Robert James Beale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:48
CPC Classifications
A; A23; A23K; A23K50/00; A23K50/40; A23K10/00; A23K10/10; A23K10/14; A23K20/00; A23K20/10; A23K20/158; A23L; A23L27/00; A23L27/20; A23L27/21; A23L27/215; Y; Y10; Y10S; Y10S426/00; Y10S426/805
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A method for increasing the palatability of a nutritionally balanced dry dog food, which comprises: (a) reacting an aqueous mixture of a reducing sugar, animal blood, fat, yeast or yeast extract with lipase and protease, at a temperature, pH, and for a time effective to cause lipolytic and proteolytic reaction; (b) heating the resulting aqueous reaction mixture to a temperature and for a time effective to inactivate the enzymes and to also further develop the palatability of the mixture, to produce a palatability enhancer; and (c) applying an external coating of the palatability enhancer onto a dog food in an amount, between 1% and 5 % based on the total weight of the dog food, which is effective to increase the palatability thereof.
Claim 2
Independent Claim
123 words
A method for increasing the palatability of a nutritionally balanced dry dog food, which comprises: (a) reacting an aqueous mixture of a reducing sugar, animal blood, fat, yeast or yeast extract with lipase and protease, at a temperature, pH, and for a time effective to cause lipolytic and proteolytic reaction; (b) heating the resulting aqueous reaction mixture to a temperature and for a time effective to inactivate the enzymes and to also further develop the palatability of the mixture, to produce a palatability enhancer; and (c) applying an external coating of the palatability enhancer onto a dog food in an amount, between 1% and 5 % based on the total weight of the dog food, which is effective to increase the palatability thereof.
Claim 3
Dependent Claim
11 words
A method according to claim 1 wherein the fat is tallow.
Claim 4
Dependent Claim
13 words
A method according to claim 1 wherein the blood is liquid whole blood.
Claim 5
Dependent Claim
13 words
A method according to claim 1 wherein the blood is dried whole blood.
Claim 6
Dependent Claim
16 words
A method according to claim 1 wherein the lipase and protease are employed as pancreatic lipase.
Claim 7
Dependent Claim
21 words
A method according to claim 1 wherein the fat is emulsified in the water prior to the heating of step (b).
Claim 8
Dependent Claim
37 words
A method according to claim 1 wherein the reacting of step (a) is conducted for a time of from about 15 minutes to 2 hours at a temperature of from about 30° C to about 55° C.
References Cited (Backward Citations)
US3653908A
Cited
US3857968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |