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Fig. 4 | Biotechnology for Biofuels

Fig. 4

From: Extracellular electron transfer from cathode to microbes: application for biofuel production

Fig. 4

The microbial metabolic pathway of NADH-consuming compound production. One arrow indicates one step of reaction. The butyrate is NADH-balanced and generally produced more than butanol. The NADH reduction (inset) by electricity increases the flux of electron for butanol formation, more NADH-consuming pathway. \(\varDelta {\text{NADH}}_{\text{net}} \left( {\text{per one mol of product}} \right) = {\text{NADH production}} - {\text{NADH consumption}},\) Fe ox oxidized form of ferredoxin, Fe red reduced form of ferredoxin

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