Patent US4839187A successfully refreshed from Google Patents.
US4839187A
Expired / Lapsed
US
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Antioxidant compositions
Assignee: Nestec SA
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Filing: 1987-06-30
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Granted: 1989-06-13
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Expires: 2007-06-30
Abstract
Abstract A composition comprising a food susceptible to lipid oxidation and an extract formed by the aqueous extraction of black tea leaves in a process which includes extraction at a temperature from 120 DEG to 210 DEG C., the amount of extract being such that the content of tea solids present is from 0.005% to 1.5% by weight based on the weight of food.
Inventors
- 👤 Jimbin Mai
- 👤 Laura J. Chambers
- 👤 Richard E. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:07
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0085; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23F; A23F3/00; A23F3/16; A23F3/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A composition comprising a food susceptible to lipid oxidation and a black tea extract containing 0.005% to 1.5% tea solids based upon the weight of the food, wherein the extract has been obtained by aqueous extraction of black tea at a temperature of from 130° C. to 210° C. and is selected from the group consisting of aqueous extracts, spent tea leaves, residues from the extraction of the black tea, and instant tea powder and combinations thereof.
Claim 2
Dependent Claim
77 words
A composition comprising a food susceptible to lipid oxidation and a black tea extract containing 0.005% to 1.5% tea solids based upon the weight of the food, wherein the extract has been obtained by aqueous extraction of black tea at a temperature of from 130° C. to 210° C. and is selected from the group consisting of aqueous extracts, spent tea leaves, residues from the extraction of the black tea, and instant tea powder and combinations thereof.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 wherein the black tea is extracted for a period of from 10 minutes to 60 minutes.
Claim 4
Dependent Claim
31 words
A composition as claimed in claim 1 wherein the tea solids contain phenol compounds in an amount of at least 5% by weight based upon the weight of the tea solids.
Claim 5
Dependent Claim
16 words
A composition according to claim 1 or 3 wherein the extract has been treated with tannase.
Claim 6
Dependent Claim
23 words
A composition according to claim 4 further comprising a material selected from the group consisting of ascorbic acid and lecithin and combinations thereof.
Claim 7
Dependent Claim
25 words
A composition according to claim 1 or 3 further comprising a material selected from the group consisting of ascorbic acid and lecithin and combinations thereof.
Claim 8
Dependent Claim
16 words
A composition according to claim 1 or 3 wherein precipitated tannins are removed from the extract.
Claim 9
Dependent Claim
53 words
A composition according to claim 1 or 3 wherein said food susceptible to lipid oxidation is a food selected from the group consisting of frying oils, frying fats, potato flakes, bakery products, meat emulsions, precooked cereals, instant noodles, soybean milk, chicken products, sausage, mayonnaise, margarine, frozen fish, frozen pizza, cheese, pork and beef.
Claim 10
Dependent Claim
22 words
A composition according to claim 1 wherein the extract has been obtained at a temperature of from 145° C. to 195° C.
Claim 11
Dependent Claim
22 words
A composition according to claim 1 wherein the extract has been obtained at a temperature of from 160° C. to 185° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |