VERTICAL PLUG-FLOW PROCESS FOR BIO-CONVERSION OF BIOMASS INVOLVING ENZYMES

The invention relates to a method for producing a solid transformation product of a substrate comprising the following steps: preparing a substrate of biomass comprising carbohydrates and proteinaceous matter that originates from soya bean, rape seed, or mixtures thereof, optionally in further mixture with carbohydrates and proteinaceous matter originating from fava beans, peas, sunflower seeds, lupine, cereals, and/or grasses, mixing said substrate with an enzyme preparation or a combination of enzyme preparations and adding water in an amount which provides an initial incubation mixture having a water content from 30 to 70 % by weight, and a ratio of wet bulk density to dry bulk density from 0.60 to 1.45 in the resulting mixture; incubating said initial incubation mixture for 0.15-72 hours at a temperature of 20-70 DEG C; and thereafter recovering wet solid transformation product from the incubated mixture; further comprising that the incubating step is performed as a continuous plug-flow process in a verti