Fig. 6From: Model-based optimization and scale-up of multi-feed simultaneous saccharification and co-fermentation of steam pre-treated lignocellulose enables high gravity ethanol productionComparison of lab and demo-scale SSCF. Time courses of cell viability, cumulative WIS addition, concentrations of sugars, ethanol and major by-products of multi-feed SSCF in lab scale (a, c) and in demo plant (b, d). The changes in WIS content indicate addition of solids, and the arrows between the panels indicate addition of yeast cells. Concentrations in C and D are averages from two biological replicates. Most data points showed deviation below 5 % between duplicate experiments. Error bars in a and b are standard deviations in duplicate experiments. Furfural and 5-hydroxymethyl furfural concentrations were below 0.5 and 0.2 g L−1 in the lab case, and below 0.1 and 0.05 g L−1 in the demo caseBack to article page