An integrated process for the production of ethanol and protein from rice distillery

Abstract

The present disclosure relates to an integrated process for obtaining ethanol and proteins from cereal grains (broken rice), the process comprising milling the grains, obtaining a slurry of the milled grains, partially hydrolysing the slurry, saccharifying the partially hydrolysed slurry to obtain saccharified slurry, adding a pre-fermented slurry to the saccharified slurry to obtain ethanol and distilling out the ethanol and separating the remaining as a whole stillage; separating the whole stillage into thin slop and DWG, treating a slurry of the DWG with cellulase enzymes to provide treated DWG slurry, separating the treated DWG slurry into wet cake and filtrate, washing and separating the said wet cake into protein concentrate and a liquid and optionally treating the obtained protein concentrate with alkali or hydrolysing enzymes to obtain purified protein hydrolysate or isolate.

Dependencies are inferred from the claim text.