Problème d'actualité : protéines - matière grasse?

Abstract - There is now a tendency to consider milk proteins according to their true value - a considerable one - whereas up to recent years, the fatty matter seemed the only important value. A new orientation has appeared. Under these conditions, should the total dry extract, the de-greased dry extract or just the proteins be considered ?
The measuring methods must be specified with a view to economic developments of the problem arising