Fig. 4

Effects of filtered medium of biochar on ethanol fermentation by Z. mobilis ZM4 “A8” and “F4” indicate Z. mobilis ZM4 fermented in the presence of 8.0 g/L acetic acid and 4.0 g/L furfural, respectively. “A8-C” and “F4-C” indicate Z. mobilis ZM4 co-cultured with filtered biochar-treated medium in the presence of 8.0 g/L acetic acid and 4.0 g/L furfural, respectively