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Biomass C6H12O6 + 2H2O
C6H12O6
H2 + CO2
(2.3) (2.4) (2.5)
Carbohydrate Organic acids 2CH3COOH + 2CO2+ 4H2 CH3CH2CH2COOH + 2CO2+ 2H2
C butyricum (Yokoi , 2001), C thermolacticum (Collet , 2004), C pasteurianum (Liu Shen, 2004; Lin Lay, 2004a), C M-21 (Evyernie , 2001), C bifermentants (Wang , 2003 Obligate anaerobes Clostridium Exponential growth phase) Stationary phase Clostridium Solventogenesis (Kapdan Kargi, 2006 Anaerobic thermo philic organisms Thermoanaerobacterium (Zhang , 2003) (Shin , 2004) KOD1 (Kanai , 2005 85