Figure 1

Overall ethanol yield from SSF and combined prehydrolysis and SSF of spruce slurry with 13.7% WIS. SSF 2 was compensated for the loss of fermentable sugars in the washing step.

Overall ethanol yield from SSF and combined prehydrolysis and SSF of spruce slurry with 13.7% WIS. SSF 2 was compensated for the loss of fermentable sugars in the washing step.