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Table 3 Typical standard reduction potentials of electron transfer carriers in organisms

From: Polyphenolic compounds as electron shuttles for sustainable energy utilization

Half-reactionEo (mV)
NAD+ + H+ + 2e → NADH− 320
FAD + 2H+ + 2e → FADH2 (free coenzyme)− 220
FAD + 2H+ + 2e → FADH2 (in flavoproteins)~ 0
Coenzyme Q10+ 100
Cytochrome C (Fe3+) + e → Cytochrome C (Fe2+)+ 220