← Back to Patent Explorer
US4303580A Expired / Lapsed US ⏱️ 0.0 years remaining

Metal caseinates

Assignee: Nestec SA
•
Filing: 1980-02-06
•
Granted: 1981-12-01
•
Expires: 2000-02-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The invention relates to caseinates of oligo-elements, such as chromium, cobalt, copper, tin, iron, magnesium, manganese, molybdenum, nickel, silicon, vanadium and zinc, containing, for n times 100 grams of casein, from 3 to 100 milli-ion-grams of M n+ , where M represents the oligo-element(s) and n is an integer. The caseinates are prepared from casein by ion exchange in order to introduce the oligo-element(s) therein, followed by washing until a substantially constant composition is obtained. They may also be obtained from alkali metal caseinates. The caseinates of copper or iron may be used as a source of copper or iron with no catalytic activity on oxidation, particularly in infant and dietetic products.

Inventors

  • 👤 Jaime Hidalgo
  • 👤 Valentin Wenner
  • 👤 Francoise Forni

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:35
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/20; A23J1/202; A23L; A23L33/00; A23L33/10; A23L33/16; A23L33/165

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 87 words
A process for preparing a soluble caseinate of at least one oligo-element containing, for n times 100 grams of casein, from 3 to 100 milli-ion-grams of M n+ , where M represents the oligo-element(s) and n is an integer, comprising treating an alkali metal caseinate, in solution with a solution of a salt of the oligo-element(s), washing the caseinate thus formed by at least one of ultrafiltration diafiltration and dialysis until the caseinate has a substantially constant composition, and dissolving the caseinate in water to form micelles.
Claim 2
Dependent Claim 87 words
A process for preparing a soluble caseinate of at least one oligo-element containing, for n times 100 grams of casein, from 3 to 100 milli-ion-grams of M n+ , where M represents the oligo-element(s) and n is an integer, comprising treating an alkali metal caseinate, in solution with a solution of a salt of the oligo-element(s), washing the caseinate thus formed by at least one of ultrafiltration diafiltration and dialysis until the caseinate has a substantially constant composition, and dissolving the caseinate in water to form micelles.
Claim 3
Dependent Claim 18 words
A process as claimed in claim 1, wherein the casein is a casein obtained by ultrafiltration of milk.
Claim 4
Dependent Claim 28 words
A process as claimed in claim 1, wherein the oligo-element is at least one of chromium, cobalt, copper, tin, iron, magnesium, manganese, molybdenum, nickel, silicon, vanadium and zinc.
Claim 5
Dependent Claim 29 words
A process as claimed in claim 1, wherein the alkali metal caseinate is prepared by contacting casein in solution with a cation exchange resin loaded with alkali metal ions.
Claim 6
Dependent Claim 19 words
A process as claimed in claim 1 wherein calcium is introduced into the caseinate in addition to the oligo-element(s).

References Cited (Backward Citations)

US1025466A Cited
US898311A Cited
US972523A Cited
US2103153A Cited
US2401919A Cited
US2721861A Cited
US2849334A Cited
US2945783A Cited
US3234001A Cited
US3705143A Cited
US4209544A Cited
US4075196A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-11-30 1985-06-01 1985-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-11-30 1989-06-01 1989-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-11-30 1993-06-01 1993-12-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag