Fig. 5From: Declining carbohydrate solubilization with increasing solids loading during fermentation of cellulosic feedstocks by Clostridium thermocellum: documentation and diagnostic testsMonocultures and cocultures solubilization and gas production. Panels A and C Fractional carbohydrate solubilization of 20 g/L and 80 g/L corn stover (A) and senescent switchgrass (C) by monocultures of Clostridium thermocellum and cocultures of Thermoanaerobacterium saccharolyticum at pH 6.5. Panels B and D Representative total gas (cumulative CO2 and H2) production for one of the duplicate reactors of 20 and 80 g/L corn stover (B) and senescent switchgrass (D) fermentations at pH 6.5. Solubilization bars are averages of duplicate bioreactors runs, and error bars represent 1 standard deviationBack to article page