Bioethanol production from non-starch carbohydrate residues in process streams from a dry-mill ethanol plant.
Slurries obtained from process streams in a starch-to-ethanol plant, Agroetanol AB in Norrköping, Sweden, were used to assess the potential increase in bioethanol yield if heat treatment followed by enzymatic hydrolysis were applied to the residual starch-free cellulose and hemicellulose fractions. The effects of different pretreatment conditions on flour (the raw material), the stream after sacch