Preparing a heat stable aqueous solution of whey proteins
AssigneeNestec S.A.
InventorOlivier de Rham
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Abstract
A process for the production of a whey product which contains whey proteins in a form which is heat stable at a neutral pH. An aqueous solution which contains whey proteins in a form which has not been rendered insoluble is prepared and the Ca, Mg, citrate and/or phosphate concentrations of the solution are adjusted as is its pH to conform to the relationships: [Ca+Mg - citrate]<0 mM when 5.5.ltoreq.pH<6.2 [Ca+Mg - citrate]<4 mM when 6.2.ltoreq.pH<7.2 and [Ca+Mg - citrate - phosphate]<4 mM when 7.2.ltoreq.pH.ltoreq.9.0
Claims16
A process for preparing a heat stable aqueous solution of whey proteins having a pH in the range of from 6.2 to less than 7.2 wherein at least 80% of the whey proteins remain soluble when heat treated which comprises preparing an aqueous solution containing a solute which consists essentially of dry matter of soluble whey proteins and adjusting the concentration of Ca+Mg-citrate such that the concentration of Ca+Mg-citrate is less than 4 mM.
A process for preparing a heat stable aqueous solution containing a solute which consists essentially of dry matter of soluble whey proteins wherein at least 80% of the whey proteins remain soluble when heat treated, wherein the pH of the solution is in the range of from 6.2 to less than 7.2 and wherein the sum of the concentrations of Ca and Mg minus the concentration of citrate in the solution is greater than 4 mM, which comprises adjusting the concentrations of Ca, Mg and citrate in the solution such that the sum of the concentration of Ca and Mg minus the concentration of citrate is less than 4 mM.
A process for preparing a heat stable aqueous solution containing a solute which consists essentially of dry matter of soluble whey proteins wherein at leat 80% of the whey proteins remain soluble when heat treated, wherein the pH of the solution is lower than 6.2 or higher than 7.2 end wherein the sum of the concentrations of Ca and Mg minus the concentration of citrate in the solution is less than 4 mM, which comprises adjusting the pH of the solution to in the range of from 6.2 to less than 7.2.
A process for the production of an aqueous solution of whey proteins which have a heat stability of at least 80% which comprises preparing an aqueous solution, the solute of which consists essentially of dry matter of demineralised whey, maintaining the pH of the solution at a value of from 6.2 to less than 7.2 and adding Ca and citrate to the solution such that the Ca consistutes about 0.34% to 0.46% of the dry matter content of the solution and such that the sum of the concentration of Ca and Mg minus the concentration of citrate of the solution is less than 4 mM.
Dependencies are inferred from the claim text.