US3630773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous process for the extraction of starch materials and products produced thereby
Assignee: Unilever Bestfoods North America
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Filing: 1968-04-04
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Granted: 1971-12-28
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Expires: 1988-04-04
Abstract
Abstract Process for the removal from a starch material of substances that are soluble in a hydrophilic fat solvent. One particular kind of substance that can be removed is the normal bound fat. The process involves rapidly heating the granular starch material in intimate contact with an aqueous vehicle comprising a hydrophilic organic fat solvent in a confined treating zone, to a temperature up to about 300* F. and preferably from about 170* to about 260* F., under a pressure that maintains the vehicle essentially in the liquid phase, during a time period at the elevated temperature from about 30 seconds to not more than about 10 minutes, then promptly separating the aqueous vehicle from the extracted starch material. The products have superior gel-forming characteristics and are particularly useful in the manufacture of gum confections, puddings, aspics, and the like.
Inventors
- 👤 Thomas J Schoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:33
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; A; A23; A23C; A23C9/00; A23C9/152; A23C9/154; A23C9/1544; C08B30/04; C11; C11B; C11B1/00; C11B1/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
13 words
A process in accordance with claim 1 wherein the organic liquid is methanol.
Claim 2
Dependent Claim
22 words
A process in accordance with claim 1 wherein the temperature in the treating zone is from about 170* to about 300* F.
Claim 3
Dependent Claim
24 words
A process in accordance with claim 1 including rapidly cooling the heated slurry prior to separating the extracted starch material from the liquid vehicle.
Claim 4
Dependent Claim
34 words
A process in accordance with claim 1 wherein the liquid vehicle includes a mineral acid, to produce, as a result of the practice of the process, a thin boiling starch material in ungelatinized form.
Claim 5
Dependent Claim
28 words
A process in accordance with claim 1 wherein the vehicle contains not more than about 20 percent of water by weight based on the weight of the vehicle.
Claim 6
Dependent Claim
131 words
A continuous process for the removal from a granular starch material of substances that are soluble in a hydrophilic fat solvent, comprising: suspending the granular starch material in an aqueous vehicle comprising methanol, to form a slurry containing not more than about 20 percent water by weight of the vehicle; passing a stream of said slurry through a confined treating zone; rapidly heating said slurry stream in said zone during a time period from about 30 seconds to not more than about 10 minutes, to a temperature in the range from the boiling point of the methanol component of the slurry at atmospheric pressure to about 300* F., but under pressure that maintains the methanol essentially in the liquid phase, then promptly separating the aqueous vehicle from the extracted starch material.
Claim 7
Dependent Claim
32 words
Granular starch that is characterized by a bound fat content of not greater than 0.30 percent by weight, prepared in accordance with the process of claim 7, and having free flowing characteristics.
Claim 8
Dependent Claim
37 words
A process in accordance with claim 7 including the step of rapidly cooling the slurry to a temperature below the boiling point of the vehicle at atmospheric pressure, before separating the vehicle from the extracted starch material.
Claim 9
Dependent Claim
21 words
A process in accordance with claim 7, wherein the aqueous vehicle contains an acid, to produce a thin boiling extracted starch.
Claim 10
Dependent Claim
15 words
A process in accordance with claim 7, wherein the granular starch material is granular cornstarch.
Claim 11
Dependent Claim
31 words
A process in accordance with claim 7, wherein the fat content of the extracted starch product is less than about 0.30 percent by weight of the extracted starch, dry substance basis.
Claim 12
Dependent Claim
29 words
A process in accordance with claim 7, wherein the temperature, to which the slurry stream is heated, is in the range from about 170* F. to about 260* F.
References Cited (Backward Citations)
US2280723A
Cited
US2587650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |