Fig. 10

Yeast cell growth inhibited in 2012 switchgrass hydrolysate and in the presence of exogenous saponins added to the 2010 switchgrass hydrolysate. All growth curves were quantified using optical density of the media at 600 nm using a microplate reader. ‘()’ depicts the amount of additional saponin added to the hydrolysate per gram dry biomass loaded during enzymatic hydrolysis. ‘SG’ stands for switchgrass. Data points represent the average ± standard deviation (n = 3)