US3948677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of starch from the cellular tissue of root crops
Assignee: GEA Mechanical Equipment GmbH
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Filing: 1974-05-03
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Granted: 1976-04-06
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Expires: 1994-05-03
Abstract
Abstract In the recovery of starch from cell tissue of root crop such as potatoes, by centrifuging, the feed to one of the centrifuging steps, in which an aqueous phase containing fibers and protein is separated from starch milk, is subjected to homogenization to free the fibers of included starch. Thereby, better separation in the centrifuging step is obtained.
Inventors
- 👤 Heinrich Huster
- 👤 Franz Heimeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:37
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/04; C08B30/048
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
Process of recovering starch from cell tissue of a root crop, which comprises: a. grinding the root crop, b. separating the ground root crop into a liquid fraction containing impurities and a solids-containing fraction containing starch and cell tissue including cell fibers having included starch, c. adding washing water to the separated solidscontaining fraction and separating the resulting admixture by centrifuging into starch milk and aqueous phase containing fibers in at least one centrifuging step, d. homogenizing the cell fibers to free the cell fibers of included starch and separating the homogenization product in the centrifuging step (s) of (c) into starch milk and aqueous phase.
Claim 2
Dependent Claim
106 words
Process of recovering starch from cell tissue of a root crop, which comprises: a. grinding the root crop, b. separating the ground root crop into a liquid fraction containing impurities and a solids-containing fraction containing starch and cell tissue including cell fibers having included starch, c. adding washing water to the separated solidscontaining fraction and separating the resulting admixture by centrifuging into starch milk and aqueous phase containing fibers in at least one centrifuging step, d. homogenizing the cell fibers to free the cell fibers of included starch and separating the homogenization product in the centrifuging step (s) of (c) into starch milk and aqueous phase.
Claim 3
Dependent Claim
58 words
Process according to claim 1, wherein the solids-containing fraction of (b) is subjected to said homogenization, and the aqueous phase of (d) is centrifuged to remove water therefrom and produce a solids-containing fraction, wash water is added to the last-mentioned solids-containing fraction, and separating the resulting admixture by centrifuging into starch milk and an aqueous phase containing fibers.
Claim 4
Dependent Claim
61 words
Process according to claim 1, wherein water is added to the solids-containing fraction produced in (b) and the resulting admixture is separated by centrifuging into starch milk and an aqueous phase containing fibers and the fibers in the last-mentioned aqueous phase are subjected to said homogenization, and the homogenization product is separated by centrifuging into starch milk and an aqueous phase.
Claim 5
Dependent Claim
73 words
Process according to claim 1, wherein water is added to the solids-containing fraction produced in (b), and the resulting admixture is separated by centrifuging into starch milk and an aqueous phase containing fibers, and water is removed from the last-mentioned aqueous phase by centrifuging, and the fibers from which water has been removed are subjected to said homogenization, and the homogenization product is separated by centrifuging into starch milk and an aqueous phase.
Claim 6
Dependent Claim
13 words
Process according to claim 1, wherein the separation of (b) is by centrifuging.
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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |