Method of producing protein-enriched foods and various byproducts starting cereal and installation for its practice

摘要

Protein foods are made from cereals by (a) milling the cereal and steeping the milled material in water; (b) mechanically separating the mixture from (a) to produce a sediment (I) containing the major proportion of the insoluble material and starch A, and a suspension (II) containing at least 60% of the nitrogeneous material initially present; (c) subsequently separating the suspension (II) to form an insoluble fraction (III) containing at least 60% of the proteins initially present and a supernatant fraction (IV); (d) mixing the sediment (I) with the supernatant fraction (IV) to form a suspension (V) containing at least 90% of the starch initially preset; (e) hydrolyzing the starch in the suspension (V) by addings thermally stable amylase; (f) separating the hydrolysis mixture from stase (e) to provide a supernatant hydrolysate (VI) and an insoluble fraction (VII); (g) fermenting the insoluble fraction (VII) after suspending it in water to cause an enrichment in yeast protein and (h) separating the fermented suspension from (g) into a recyclable effluent and a sediment comprising high grade food protein.