Fig. 5

Cellulose content of the starting biomass and of the solid residues recovered during C. thermocellum fermentation and in fermentation controls. Cellulose content of alcohol-insoluble residue (AIR) (i.e., cell walls) of solid residue recovered after consolidated bioprocessing and in fermentation controls by A Saeman hydrolysis [21, 22] and B methylated alditol method [25]. See Methods for details. The amounts of sugar are represented as average mg of glucose recovered from the starting biomass (5.68 g). Mean ± SD of 2 biological and three technical replicates (n = 6). P value is **P ≤ 0.01 at significant level