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Table 3 H 2 production by T. thermosaccharolyticum M18 on polymeric substrates after 96 h fermentation

From: Single-step bioconversion of lignocellulose to hydrogen using novel moderately thermophilic bacteria

Parameters Lignocellulosic substrates
Corn stalk Wheat straw Corn cob
Unwashed Washed Unwashed Washed Unwashed Washed
Initial substrates (g/L) 5.0 ± 0.02 5.0 ± 0.01 5.0 ± 0.01 5.0 ± 0.02 5.0 ± 0.03 5.0 ± 0.00
Residual substrate (g/L) 2.58 ± 0.05 2.47 ± 0.14 2.49 ± 0.22 2.43 ± 0.28 2.02 ± 0.10 1.93 ± 0.14
Insoluble carbohydrates utilized (%) 56.07 ± 1.46 57.12 ± 2.18 59.23 ± 2.56 52.07 ± 2.43 62.71 ± 3.11 58.88 ± 2.72
Maximum H2 production (mmol/L) 8.42 ± 1.42 8.30 ± 0.88 8.86 ± 0.44 8.98 ± 0.32 9.65 ± 1.48 9.88 ± 0.76
H2 production rate (mmol/L/h) 0.10 ± 0.02 0.09 ± 0.02 0.11 ± 0.02 0.11 ± 0.02 0.13 ± 0.03 0.11 ± 0.02
H2 yield (mmol/g substrate) 3.47 ± 0.11 3.28 ± 0.33 3.53 ± 0.24 3.49 ± 0.18 3.23 ± 0.30 3.27 ± 0.21