US3943262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a dyed edible food casing
Assignee: Naturin Werk Becker and Co
•
Filing: 1974-09-12
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Granted: 1976-03-09
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Expires: 1994-09-12
Abstract
Abstract Dyed edible food casings, e.g. sausage casings, are produced by applying an edible dye to an edible carrier therefor, fixing the dye on the carrier by use of a protein, and admixing the carrier with an edible casing material to form an extrudable composition. That composition is then used for production of the casing by extrusion. The dye can be a water soluble dye, a fat soluble but water insoluble dye, or a water insoluble, alkali soluble dye.
Inventors
- 👤 Bruno Winkler
- 👤 Bernd Mangei
- 👤 Dieter Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
102 words
A process for the production of a dyed edible food casing comprising: a. applying an edible dye to an edible carrier therefor in finely divided form so that the dye coats the carrier particles, b. fixing the dye on the carrier particles by contacting the coated carrier particles with a protein from the group consisting of gelatin, collagen and casein for complex formation whereby the dye becomes fixed on the carrier, and thereafter c. admixing the carrier coated with the dye with an edible casing material to form an extrudable composition, and d. extruding the resulting admixture to form the dyed casing.
Claim 2
Dependent Claim
102 words
A process for the production of a dyed edible food casing comprising: a. applying an edible dye to an edible carrier therefor in finely divided form so that the dye coats the carrier particles, b. fixing the dye on the carrier particles by contacting the coated carrier particles with a protein from the group consisting of gelatin, collagen and casein for complex formation whereby the dye becomes fixed on the carrier, and thereafter c. admixing the carrier coated with the dye with an edible casing material to form an extrudable composition, and d. extruding the resulting admixture to form the dyed casing.
Claim 3
Dependent Claim
13 words
A process according to claim 1, wherein said casing is dried after extrusion.
Claim 4
Dependent Claim
23 words
A process according to claim 1, wherein said casing is subjected to at least one of a tanning step and a plasticizing step.
Claim 5
Dependent Claim
22 words
Process according to claim 1, wherein the casing contains a quantity of dye in the range of from 0.1 to 2 wt.%.
Claim 6
Dependent Claim
17 words
A process according to claim 1, wherein the edible dye is a water-soluble or water-insoluble, alkali-soluble dyestuff.
Claim 7
Dependent Claim
21 words
A process according to claim 5, wherein said edible dye is at least one of carmin, orcein, indigotin, curcumin and bixin.
Claim 8
Dependent Claim
12 words
A process according to claim 1, wherein said carrier material comprises cellulose.
Claim 9
Dependent Claim
16 words
A process according to claim 1, wherein said casing material comprises collagen, polyvinyl alcohol, or alginate.
Claim 10
Dependent Claim
15 words
A process according to claim 1, the fixing being effected with a 1% protein solution.
Claim 11
Dependent Claim
22 words
A process according to claim 1, wherein the edible dye combined with an edible hydrophobic encapsulating agent is applied to the carrier.
Claim 12
Dependent Claim
45 words
Process according to claim 1, the amount of dye being 0.1-2 weight percent of the dry weight of said extrudable composition, the amount of dye further being 1-15 weight percent of the carrier, and the amount of protein being 10-90 weight percent of the carrier.
Claim 13
Dependent Claim
13 words
Process according to claim 1, wherein the edible dye is a fat-soluble carotinoid.
References Cited (Backward Citations)
US3860728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |