Fig. 6
Final ethanol concentrations strongly correlate with maximum carbon dioxide volume across all samples. A Average ethanol concentration at the end of respirometer experiments for extracted and unextracted switchgrass hydrolysates. Samples that do not share a letter on top of the bars are significantly different based on Tukey’s pairwise statistical comparison (⍺ = 0.05). In this statistical model, year and extraction solvent were nested within extraction timing with respect to AFEX pretreatment. B Linear regression of ethanol concentration and carbon dioxide concentration for all samples