The invention relates to a process for the selective elimination and quantitative composition of the lactoglobulins from a starting material containing the whey proteins, characterized in that it is placed in contact with the starting material with an anion exchanger of the type of highly basic, the ph of the starting material is comprised between 4 and 6 when the ash content of the starting material is comprised between 0 and at most 1% by weight, and between 6 and 8 when the ash content is between more than 1% and 3% by weight, so as to retain selectively and quantitatively the lactoglobulins on the anion exchanger, it separates the anion exchange resin on which are retained lactoglobulins of the remainder of the starting material, and said remains free of lactoglobulins. / p & & p & application to the production of food, milk dietary regimen for infants
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