Fig. 7

Yield coefficients, carbon balance (C.b.) and redox balance (R.b.) of all continuous cultures performed at a D of 0.3 h⁻¹. A Case A (C. kronotskyensis without carriers, dotted bar, black); Case B (C. kronotskyensis with acrylic fibres, brick bar, black); Case C (C. kronotskyensis with acrylic fibres and chitosan, bar with vertical line, black); and Case D (C. kronotskyensis with chitosan, bar with diagonal line, black). B Case F (C. owensensis with acrylic fibres, brick bar, blue); Case G (C. owensensis with acrylic fibres and chitosan, bar with vertical line, blue); and Case H (C. owensensis with chitosan, bar with diagonal line, blue). C Case I (co-culture without carriers, dotted bar, green); Case J (co-culture with acrylic fibres, brick bar, green); Case K (co-culture with acrylic fibres and chitosan bar with vertical line, green); and Case L (co-culture with chitosan bar with diagonal line, green). Y_H2, Y_Ac, Y_Lac, and Y_SX represent molar yields of H₂, acetate, lactate, and biomass per mole of substrate consumed, respectively. C.b. and R.b. represent carbon balance and redox balance, respectively