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US4049839A Expired / Lapsed US ⏱️ 0.0 years remaining

Physiochemically designed fat compositions from tallow

Assignee: United States Department of Agriculture
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Filing: 1975-12-22
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Granted: 1977-09-20
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Expires: 1995-12-22
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Abstract

Abstract Beef tallow is partitioned into five well defined fractions, each having its own distinctive fatty acid and glyceride composition and its own distinctive thermal characteristics, by a precise multi-step crystallization. Two of the five fractions are crystalline, one is a plastic solid and two are liquid. One of the liquid fractions accounts for 60% of the tallow and has a variety of uses in the formulation of salad oils, margarines and liquid and plastic shortenings. The composition and properties of the plastic solid fraction are very similar to those of cocoa butter and when it is mixed with cocoa butter it does not produce any significant change in thermal characteristics. In fact, an increment of one of the crystalline fractions or of one of the liquid fractions can be blended with an increment of the solid plastic fraction to make products that are compatible with cocoa butter and that have desirable thermal characteristics. However, when an increment of the other crystalline fraction is blended with an increment of the solid plastic fraction, the resulting product has undesirable thermal characteristics.

Inventors

  • 👤 Francis E. Luddy
  • 👤 James W. Hampson
  • 👤 Samuel F. Herb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 16:42
CPC Classifications
C; C11; C11B; C11B7/00; C11B7/0008; C11B7/0025; A; A23; A23D; A23D7/00; A23D7/001; A23D9/00

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 79 words
A high melting crystalline tallow fraction useful for hardening shortenings and margarine stock consisting essentially of trisaturated glycerides with a minor amount of disaturated, monounsaturated glycerides, said fraction having a gas-liquid chromatographic profile indicating a composition having 12%, 31%, 39%, and 18% of glycerides having carbon numbers of 48, 50, 52 and 54, respectively, and a thermal profile indicating softening at about 40° C., commencement of rapid melting at about 50° C. and complete melting at about 57° C.
Claim 2
Dependent Claim 79 words
A high melting crystalline tallow fraction useful for hardening shortenings and margarine stock consisting essentially of trisaturated glycerides with a minor amount of disaturated, monounsaturated glycerides, said fraction having a gas-liquid chromatographic profile indicating a composition having 12%, 31%, 39%, and 18% of glycerides having carbon numbers of 48, 50, 52 and 54, respectively, and a thermal profile indicating softening at about 40° C., commencement of rapid melting at about 50° C. and complete melting at about 57° C.
Claim 3
Dependent Claim 106 words
A fat composition useful as a margarine base comprising from 65 to 95% by weight of a liquid edible oil and from 35 to 5% by weight of high melting crystalline tallow fraction, said high melting crystalline tallow fraction consisting essentially of trisaturated glycerides with a minor amount of disaturated, monounsaturated glycerides, said fraction having a gas-liquid chromatographic profile profile indicating a composition having 12%, 31%, 39% and 18% of glycerides having carbon numbers of 48, 50, 52 and 54, respectively, and a thermal profile indicating softening at about 40° C., commencement of rapid melting at about 50° C. and complete melting at about 57° C.
Claim 4
Dependent Claim 106 words
A fat composition useful as a margarine base comprising from 65 to 95% by weight of a liquid edible oil and from 35 to 5% by weight of high melting crystalline tallow fraction, said high melting crystalline tallow fraction consisting essentially of trisaturated glycerides with a minor amount of disaturated, monounsaturated glycerides, said fraction having a gas-liquid chromatographic profile profile indicating a composition having 12%, 31%, 39% and 18% of glycerides having carbon numbers of 48, 50, 52 and 54, respectively, and a thermal profile indicating softening at about 40° C., commencement of rapid melting at about 50° C. and complete melting at about 57° C.
Claim 5
Dependent Claim 33 words
The fat composition of claim 2 wherein from 85 to 95% by weight of the composition is liquid edible oil and from 15 to 5% by weight is high melting crystalline tallow fraction.
Claim 6
Dependent Claim 22 words
The fat composition of claim 2 wherein the blend of liquid edible oil and high melting crystalline tallow fraction is catalytically rearranged.
Claim 7
Dependent Claim 37 words
The fat composition of claim 2 wherein from 65 to 80% by weight of the composition is liquid edible oil and from 35 to 20% by weight of the composition is a high melting crystalline tallow fraction.

References Cited (Backward Citations)

US2740799A Cited
US3944585A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-19 1981-03-21 1981-09-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-19 1985-03-21 1985-09-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-19 1989-03-21 1989-09-20 $7700.00 Window Closed / Lapsed

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