Process for preparing vegetal proteinic concentrates, products thereby obtained, and milk substituting feeds containing said concentrates

A process for preparing a vegetal proteinic feed to be used as base material for replacing natural milk for nutrition of young mammals, said process comprising the steps of:

• submitting to a bland acid hydrolysis at a temperature of 80.degree.-120.degree. C at least one vegetal flour with a proteinic content of 20-75% by an acid in solution of 0.2 to 10% acid and controlling the hydrolysis to solubilize at least 50% of the proteins and transform 5-30% of the proteins into free amino acids, submitting to a bland alkaline hydrolysis at least one vegetal flour with a proteinic content of 20-75% by an alkali in solution of 0.1 to 5% alkali and controlling the hydrolysis to solubilize at least 50% of the proteins and transform 5-30% of the proteins into free amino acids, and mixing the acid hydrolysate and alkaline hydrolysate and adjusting said mixture to a pH value of 6.7 to 7.1, and wherein fats in nutritional amounts are intimately incorporated into said neutralized hydrolysate mixture to form a stable emulsion, whereby in the process the proteinic fraction is resolved into easily digestible derivatives, a great part of the polysaccarides is resolved in simpler sugars, the enzymes are destroyed and the oligosaccarides which are harmful for the digestion are removed.