Process for separation of whey proteins using a novel anion exchanger
AssigneesMassey University, New Zealand Dairy Board
InventorsJohn Stephen Ayers, David Francis Elgar, Kay Patricia Palmano, Mark Pritchard, Ganugapati Bijaya Bhaskar
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Abstract
The present invention relates to new processes useful for separating whey proteins from whey protein-containing solutions using a novel anion exchanger which comprises a water insoluble, hydrophilic, water swellable, hydroxy (C2–C4) alkylated and cross-linked regenerated cellulose, derivatized with quaternary amino (QA) groups where the level of substitution of the QA groups is 1.4 milli-equivalents per dry gram of anion exchanger (meq/g) or greater.
Claims30
A process of separating a preselected whey protein or group of whey proteins from a whey protein-containing solution, wherein the process comprises the following steps:
- (a) containing a whey protein-containing solution with an anion exchange at a pH level at which the preselected protein a group of proteins adsorbs to the anion exchanger, and wherein the anion exchanger comprises a water insoluble, hydrophilic, water swellable, hydroxy (C2–C4) alkylated and cross-linked regenerated cellulose, derivatised with quaternary amino (QA) groups, wherein the level of substitution of the QA groups is 1.4 milli-equivalents per dry gram of anion exchanger (meq/g) or greater;
- and
- (b) recovering either or both of the following:
- (1) the whey protein or proteins adsorbed in step (a) and (2) the breakthrough whey protein or proteins not adsorbed in step (a).
Dependencies are inferred from the claim text.