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US 2010/0143567 A1Published application
Dairy product and process
AssigneeFonterra Co-Operative Group Limited
InventorsAiqian Ye, Stephen Murray Taylor
Life of this patent
Estimating the term…
Abstract
A viscoelastic fluid is prepared by shearing a gelled emulsion. The emulsion is an oil-in-water emulsion comprising 2% 12% (w/w) of a heat-treated protein that can form a heat-set gel and 5% 40% fat. The proteins used include whey protein and soy protein. The viscoelastic fluid may be used as a spread. It may also be used for the preparation of a plurality of different ultimate products formed from the original gel.
Claims27
A method for preparing a viscoelastic fluid comprising:
- (a). mixing oil or fat or a mixture of oil and fat with an aqueous medium to form an oil-in-water emulsion comprising 2% to 12% (w/w) of protein that can form a heat-set gel and 5% to 40% (w/w) oil or fat or a mixture of oil and fat, and homogenising the mixture at a pressure in the range 100 to 2000 bar;
- (b). heating the homogenised emulsion to 50° C. to 200° C. without allowing a gel to form, for a period sufficient to denature the proteins;
- (c). optionally cooling;
- (d). allowing the heat-treated emulsion to form a gel by a method selected from adding a salt, and acidification;
- and
- (e). subjecting the gel to shearing to form a viscoelastic fluid.
3 more elements
A method for preparing a viscoelastic fluid comprising:
- (a). mixing oil or fat or a mixture of oil and fat with an aqueous medium to form an oil-in-water emulsion comprising 2% to 12% (w/w) of protein that can form a heat-set gel and 5% to 40% (w/w) oil or fat or a mixture of oil and fat, and homogenising the mixture at a pressure in the range 100 to 2000 bar;
- (b). heating the emulsion to 50° C. to 200° C. for a period sufficient to denature the proteins and form a gel;
- (c). optionally cooling;
- and
- (d). subjecting the gel to shearing to form a viscoelastic fluid,
- wherein the heating is carried out either in the presence of a salt or at a pH of less than 5.5, preferably less than 5.0.
3 more elements
A method for preparing a viscoelastic fluid comprising:
- (a). heating aqueous protein to 50° C. to 200° C. for a period sufficient to denature the proteins;
- (b). mixing the heat treated aqueous protein with oil or fat or mixture of both, wherein the mixture comprises 2% to 12% (w/w) whey protein and 5% to 40% (w/w) oil or fat and homogenising the mixture at a pressure in the range 100 to 2000 bar to form a gelled oil-in-water emulsion;
- (c). optionally cooling;
- (d). allowing the emulsion to form a gel by a method selected from adding a salt, and acidification;
- (e). shearing the gel to form a viscoelastic fluid;
2 more elements
Dependencies are inferred from the claim text.