Societe D'assistance Technique Pour Produits Nestle S.a.

Francoise Forni

Valentin Wenner

Jaime Hidalgo

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.sup.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.

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La Tour de Peilz, Switzerland

Francoise Forni