US4006263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron-fortified soluble coffee and method for preparing same
Assignee: General Foods Corp
•
Filing: 1973-02-20
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Granted: 1977-02-01
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Expires: 1993-02-20
Abstract
Abstract Liquid coffee extract having a solids concentration of from about 10 to 30% by weight is maintained at a temperature below about 70° F for a period of time sufficient to permit precipitation of materials which interact with elemental iron. The tempered extract is clarified, such as by centrifugation, fortified with nutritive ingredients including a soluble iron compound containing assimilable iron, and dried, such as by spray drying.
Inventors
- 👤 Sigmund L. Klug
- 👤 Frederick J. Patrizio
- 👤 William J. Einstman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:52
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/16; A23F5/18; A23F5/24; A23F5/36; A23F5/42
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
A method for producing an iron-fortified soluble coffee comprising the steps of: a. producing a liquid coffee extract from a counter-current, semi-continuous extraction process, said extract having a soluble coffee solids concentration of from about 10 to 30% by weight, b. cooling said extract as it is leaving the extraction process to between about 35° and 70°F, c. maintaining said extract at between 35 and 70°F for a period of time sufficient to effect precipitation of polyhydroxyphenols and polyhydroxy-phenol-polysaccharide complexes that are present in the coffee extract, then d. separating said precipitated material from said extract, e. adding a source of assimilable, elemental iron to the separated extract of step d at a level of from 0.01 to 1.0% elemental iron by weight of soluble coffee solids, and then f. drying said iron-fortified extract.
Claim 2
Independent Claim
134 words
A method for producing an iron-fortified soluble coffee comprising the steps of: a. producing a liquid coffee extract from a counter-current, semi-continuous extraction process, said extract having a soluble coffee solids concentration of from about 10 to 30% by weight, b. cooling said extract as it is leaving the extraction process to between about 35° and 70°F, c. maintaining said extract at between 35 and 70°F for a period of time sufficient to effect precipitation of polyhydroxyphenols and polyhydroxy-phenol-polysaccharide complexes that are present in the coffee extract, then d. separating said precipitated material from said extract, e. adding a source of assimilable, elemental iron to the separated extract of step d at a level of from 0.01 to 1.0% elemental iron by weight of soluble coffee solids, and then f. drying said iron-fortified extract.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein the liquid coffee extract is maintained between about 45° and 70°F for a period of at least 1 hour.
Claim 4
Dependent Claim
16 words
The method of claim 2 wherein the extract is kept in a static condition during tempering.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the liquid coffee extract is cooled to 40°F or lower for less than 1 minute prior to clarification.
Claim 6
Independent Claim
140 words
A method for producing an iron-fortified soluble coffee comprising the steps of: a. producing a liquid coffee extract from a counter-current, semi-continuous extraction process, said extract having a solids concentration of from about 10 to 30% by weight, b. evaporatively concentrating the extract, c. cooling the extract to between about 35° and 70°F, d. maintaining the cooled extract at between 35° and 70°F for a period of time sufficient to effect precipitation of polyhydroxyphenols and polyhydroxy-phenol-polysaccharide complexes that are present in the coffee extract, then e. separating said precipitated material from said extract, f. adding a source of assimilable elemental iron to the evaporatively concentrated extract which was separated in step (e), at a level of from 0.01 to 1.0% elemental iron, based on the weight of soluble coffee solids, and then g. spray drying the extract of step (f).
Claim 7
Independent Claim
140 words
A method for producing an iron-fortified soluble coffee comprising the steps of: a. producing a liquid coffee extract from a counter-current, semi-continuous extraction process, said extract having a solids concentration of from about 10 to 30% by weight, b. evaporatively concentrating the extract, c. cooling the extract to between about 35° and 70°F, d. maintaining the cooled extract at between 35° and 70°F for a period of time sufficient to effect precipitation of polyhydroxyphenols and polyhydroxy-phenol-polysaccharide complexes that are present in the coffee extract, then e. separating said precipitated material from said extract, f. adding a source of assimilable elemental iron to the evaporatively concentrated extract which was separated in step (e), at a level of from 0.01 to 1.0% elemental iron, based on the weight of soluble coffee solids, and then g. spray drying the extract of step (f).
Claim 8
Dependent Claim
29 words
The method of claim 5 wherein the extract is maintained between about 45° and 70°F for a period of at least about 1 hour in order to effect precipitation.
References Cited (Backward Citations)
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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) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |