US4482576A
Expired / Lapsed
US
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Method for treating an edible oil by isothermal directed interesterification
Assignee: Lever Brothers Co
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Filing: 1982-03-08
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Granted: 1984-11-13
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Expires: 2002-03-08
Abstract
Abstract A method for treating an edible oil rich in linoleic acids so as to increase its solid fat content comprises the directed interesterification under isothermal conditions of an oil containing at least 60% pufa and 12.5 to 16% safa. The method is simple to perform and produces an oil which can be employed directly in margarine manufacture. The oil can be a mixture of an oil high in pufa such as natural sunflower and safflower seed oil and an oil high in safa such as fully or partially hardened sunflower or safflower seed oil.
Inventors
- 👤 Jacobus Boot
- 👤 Adrianus Rozendaal
- 👤 Robert Schijf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:11
CPC Classifications
A; A23; A23D; A23D7/00; A23D7/001; C; C11; C11C; C11C3/00; C11C3/04; C11C3/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
73 words
Method for treating an edible oil comprising triglycerides rich in linoleic acid the method consisting essentially of directed interesterifying an oil having a polyunsaturated fatty acid content of at least 60% and a saturated fatty acid content of between 12.5% and 16%, at least a part of the saturated fatty acid content comprising hydrogenated fatty acids, under isothermal conditions, the resultant oil being suitable for use in margarine manufacture absent temperature cycling treatment.
Claim 2
Dependent Claim
73 words
Method for treating an edible oil comprising triglycerides rich in linoleic acid the method consisting essentially of directed interesterifying an oil having a polyunsaturated fatty acid content of at least 60% and a saturated fatty acid content of between 12.5% and 16%, at least a part of the saturated fatty acid content comprising hydrogenated fatty acids, under isothermal conditions, the resultant oil being suitable for use in margarine manufacture absent temperature cycling treatment.
Claim 3
Dependent Claim
26 words
Method according to claim 1 wherein the oil is directed interesterified at a temperature within the range of from about -5° C. to about 12° C.
Claim 4
Dependent Claim
26 words
Method according to claim 2 wherein the oil is directed interesterified at a temperature within the range of from about 0° C. to about 8° C.
Claim 5
Dependent Claim
18 words
Method according to claim 1 wherein the oil is subjected to directed interesterification for less than 24 hours.
Claim 6
Dependent Claim
16 words
Method according to claim 1 wherein the oil has a pufa content of at least 65%.
Claim 7
Dependent Claim
17 words
Method according to claim 1 wherein the oil has a safa content of between 12.5% and 15%.
Claim 8
Dependent Claim
31 words
Method according to claim 1 wherein the oil comprises a blend of at least one oil having a high pufa content and at least one oil having a high safa content.
Claim 9
Dependent Claim
20 words
Method according to claim 7 wherein the oil having a high safa content comprises a fully or partially hydrogenated oil.
Claim 10
Dependent Claim
25 words
Method according to claim 7 wherein the oil having a high safa content comprises a fully or partially hydrogenated oil randomly interesterified with another oil.
Claim 11
Dependent Claim
24 words
Method according to claim 8 wherein the said fully or partially hydrogenated oil comprises fully or partially hydrogenated sunflower oil and/or safflower seed oil.
Claim 12
Dependent Claim
25 words
Method according to claim 7 wherein the oil having a high pufa content is selected from sunflower oil, safflower seed oil and a mixture thereof.
Claim 13
Dependent Claim
28 words
Method according to claim 7 wherein the oil comprises 95 to 97% oil having a high pufa content and 5 to 3% oil having a high safa content.
Claim 14
Dependent Claim
16 words
Method according to any one of the preceding claims wherein the oil is a margarine oil.
Claim 15
Dependent Claim
17 words
Oil prepared by a method according to claim 1 having a pufa:safa ratio of at least 3.75.
Claim 16
Dependent Claim
8 words
Margarine containing an oil according to claim 14.
References Cited (Backward Citations)
US2442531A
Cited
US2442532A
Cited
US2442535A
Cited
US2442538A
Cited
US2875066A
Cited
FR1537238A
Cited
US3748348A
Cited
GB1364682A
Cited
US3859447A
Cited
GB1381721A
Cited
US3855254A
Cited
US4230737A
Cited
EP0009207A1
Cited
US4284578A
Cited
US4335156A
Cited
EP0299374A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |