US3879566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a quick-cooking rice
Assignee: DELTA FOOD PROCESSORS Ltd
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Filing: 1971-04-05
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Granted: 1975-04-22
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Expires: 1991-04-05
Abstract
Abstract Various varieties of rice are subjected to heat treatment either by torrefaction in the presence of some water, by steaming, or by boiling, the water in each instance containing dissolved chemicals, for the purpose of modifying the protein content and the starch content to condition the product for subsequent accelerated water imbibation during final cooking for eating. After the heat and chemical treatment the rice product is rinsed to remove chemical residue and to eliminate clumping. The rice is then dried.
Inventors
- 👤 James Patrick Cox
- 👤 Jeanne Marie Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:55
CPC Classifications
A; A23; A23B; A23B9/00; A23B9/16; A23B9/24; A23B9/30; A23L; A23L7/00; A23L7/10; A23L7/196; A23L7/1963
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
97 words
THE METHOD OF PREPARING A QUICK-COOKING RICE PRODUCT CONSISTING ESSENTIALLY IN THE STEPS OF INCREASING THE WATER ABSORPTIVITY OF RICE BY HEATING RICE TO A TEMPERATURE WITHIN THE RANGE OF 185*F. TO 280*F. AT A PRESSURE AT LEAST AS GREAT AS ATMOSPHERIC PRESSURE FOR A PERIOD OF 2 MINUTES TO 70 MINUTES AND SIMULTANEOUSLY TREATING SUCH RICE WITH AQUEOUS CHEMICAL SOLUTION CONSISTING OF ALKALI METAL PHOSPHATE, EXCLUDING TRISODIUM PHOSPHATE, SAID SOLUTION CONTAINING SAID ALKALI METAL PHOSPHATE IN THE PROPORTION OF 0.001% TO 7% BY WEIGHT OF THE DRY RICE TO BE TREATED, AND THEREAFTER DRYING THE RICE.
Claim 2
Independent Claim
97 words
THE METHOD OF PREPARING A QUICK-COOKING RICE PRODUCT CONSISTING ESSENTIALLY IN THE STEPS OF INCREASING THE WATER ABSORPTIVITY OF RICE BY HEATING RICE TO A TEMPERATURE WITHIN THE RANGE OF 185*F. TO 280*F. AT A PRESSURE AT LEAST AS GREAT AS ATMOSPHERIC PRESSURE FOR A PERIOD OF 2 MINUTES TO 70 MINUTES AND SIMULTANEOUSLY TREATING SUCH RICE WITH AQUEOUS CHEMICAL SOLUTION CONSISTING OF ALKALI METAL PHOSPHATE, EXCLUDING TRISODIUM PHOSPHATE, SAID SOLUTION CONTAINING SAID ALKALI METAL PHOSPHATE IN THE PROPORTION OF 0.001% TO 7% BY WEIGHT OF THE DRY RICE TO BE TREATED, AND THEREAFTER DRYING THE RICE.
Claim 3
Independent Claim
99 words
The method of preparing a quick-cooking rice product consisting essentially in the steps of increasing the water absorptivity of rice by heating rice to a temperature within the range of 185* F. to 280* F. at a pressure at least as great as atmospheric pressure for a period of 2 minutes to 70 minutes and simultaneously treating such rice with aqueous chemical solution consisting of alkali metal phosphate, excluding trisodium phosphate, said solution containing said alkali metal phosphate in the proportion of 0.001% to 7% by weight of the dry rice to be treated, and thereafter drying the rice.
Claim 4
Independent Claim
99 words
The method of preparing a quick-cooking rice product consisting essentially in the steps of increasing the water absorptivity of rice by heating rice to a temperature within the range of 185* F. to 280* F. at a pressure at least as great as atmospheric pressure for a period of 2 minutes to 70 minutes and simultaneously treating such rice with aqueous chemical solution consisting of alkali metal phosphate, excluding trisodium phosphate, said solution containing said alkali metal phosphate in the proportion of 0.001% to 7% by weight of the dry rice to be treated, and thereafter drying the rice.
Claim 5
Dependent Claim
25 words
The method defined in claim 1, including rinsing rice in a mildly alkaline solution prior to the application to it of the aqueous chemical solution.
Claim 6
Dependent Claim
15 words
The method defined in claim 1, including heating the rice in ample aqueous chemical solution.
Claim 7
Dependent Claim
20 words
The method defined in claim 1, including heating the rice and aqueous chemical solution in an atmosphere of live steam.
Claim 8
Dependent Claim
16 words
The method defined in claim 1, including heating the rice and aqueous chemical solution by torrefaction.
Claim 9
Dependent Claim
24 words
The method defined in claim 1, including rinsing the rice following the heating step to remove aqueous chemical solution residue and to deter clumping.
Claim 10
Dependent Claim
28 words
The method defined in claim 1, including rinsing the rice in calcium chloride brine following the heating step to remove aqueous chemical solution residue and to deter clumping.
Claim 11
Dependent Claim
28 words
The method defined in claim 1, in which the aqueous chemical solution includes calcium phosphate in the proportion of up to 5% by weight of the dry rice.
Claim 12
Dependent Claim
46 words
The method defined in claim 1, in which the aqueous chemical solution contains, in the proportion of 0.001% to 7% by weight of the dry rice to be treated, at least one citrate selected from the group consisting of sodium citrate, calcium citrate and magnesium citrate.
Claim 13
Dependent Claim
13 words
The method defined in claim 9, in which the citrate is sodium citrate.
Claim 14
Dependent Claim
13 words
The method defined in claim 9, in which the citrate is calcium citrate.
Claim 15
Dependent Claim
13 words
The method defined in claim 9, in which the citrate is magnesium citrate.
Claim 16
Independent Claim
120 words
The method of preparing a quick-cooking rice product consisting essentially in the steps of increasing the water absorptivity of rice by heating rice to a temperature within the range of 185* to 280* F. at a pressure at least as great as atmospheric pressure for a period of 2 minutes to 70 minutes and simultaneously treating such rice with aqueous solution of calcium chloride in the proportion of 0.001% to 7% by weight of the dry rice to be treated and, in the proportion of .001% to 7% by weight of the dry rice to be treated, of at least one citrate selected from the group consisting of sodium citrate, calcium citrate and magnesium citrate, and thereafter drying the rice.
Claim 17
Independent Claim
120 words
The method of preparing a quick-cooking rice product consisting essentially in the steps of increasing the water absorptivity of rice by heating rice to a temperature within the range of 185* to 280* F. at a pressure at least as great as atmospheric pressure for a period of 2 minutes to 70 minutes and simultaneously treating such rice with aqueous solution of calcium chloride in the proportion of 0.001% to 7% by weight of the dry rice to be treated and, in the proportion of .001% to 7% by weight of the dry rice to be treated, of at least one citrate selected from the group consisting of sodium citrate, calcium citrate and magnesium citrate, and thereafter drying the rice.
Claim 18
Independent Claim
99 words
The method of preparing quick-cooking rice which comprises heating rice to a temperature within the range of 185* F. to 280* F. for a period of 2 minutes to 70 minutes while being treated with aqueous chemical solution containing, a. in the proportion of 0.001% to 7% by weight of the dry rice, at least one citrate selected from the group consisting of sodium citrate, calcium citrate and magnesium citrate, and, b. in the proportion of 0.001% to 7% by weight of the dry rice, calcium chloride or alkali metal phosphate, excluding trisodium phosphate, and thereafter drying the rice.
Claim 19
Independent Claim
99 words
The method of preparing quick-cooking rice which comprises heating rice to a temperature within the range of 185* F. to 280* F. for a period of 2 minutes to 70 minutes while being treated with aqueous chemical solution containing, a. in the proportion of 0.001% to 7% by weight of the dry rice, at least one citrate selected from the group consisting of sodium citrate, calcium citrate and magnesium citrate, and, b. in the proportion of 0.001% to 7% by weight of the dry rice, calcium chloride or alkali metal phosphate, excluding trisodium phosphate, and thereafter drying the rice.
Claim 20
Dependent Claim
13 words
The method defined in claim 13, in which the citrate is sodium citrate.
Claim 21
Dependent Claim
13 words
The method defined in claim 13, in which the citrate is calcium citrate.
Claim 22
Dependent Claim
13 words
The method defined in claim 13, in which the citrate is magnesium citrate.
Claim 23
Dependent Claim
56 words
A method for producing a cooked rice product which comprises applying to the dried rice grains resulting from the process defined in claim 1 a fat base coating which is solid at ordinary temperatures, and cooking the coated rice in the presence of moisture until the rice and coating material are cooked to a palatable state.
References Cited (Backward Citations)
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Cited
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US3523025A
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US3582352A
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US3526511A
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US3467528A
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US3655400A
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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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |