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Table 3 Summary of fermentation parameters on different pretreated cornstalk samples using T. thermosaccharolyticum M18

From: Consolidated bioprocessing performance of Thermoanaerobacterium thermosaccharolyticum M18 on fungal pretreated cornstalk for enhanced hydrogen production

Pretreatments H2yield(mmol H2 g−1substrate) Concentration of end metabolites (mmol L−1)
Acetate Butyrate Ethanol Butanol Propionate
Untreated 2.2 ± 0.03 9.1 ± 0.3 5.5 ± 0.1 2.1 ± 0.05 0.8 ± 0.03 0.5 ± 0.02
Alkaline pretreatment 7.2 ± 0.2 24.8 ± 0.4 13.3 ± 0.05 6.6 ± 0.03 1.0 ± 0.03 0.7 ± 0.03
Acid pretreatment 4.2 ± 0.1 17.2 ± 0.2 10.7 ± 0.1 4.8 ± 0.03 0.9 ± 0.04 0.6 ± 0.01
Fungal pretreatment 6.8 ± 0.2 23.2 ± 0.6 12.9 ± 0.2 5.7 ± 0.2 1.2 ± 0.01 0.6 ± 0.02