Fig. 2 Sugar consumption (A), ethanol production (B) and yeast viability (C) during batch ethanol fermentation by S. cerevisiae NP 01 from sweet sorghum juice with (open symbol) and without (closed symbol) 9 g l-1 of yeast extract under VHG conditions in different bioreactors: (1) 500-ml Erlenmeyer flask, (2) 5-litre and (3) 50-litre.

Supported by UNESCO / MIRCEN network