Table 3.

Performance of the continuous bioreactor operation with C5 and C6-sugars.

HRT (h)	Z/I (g g−1)	Day	OLR (kg m−3 day−1)	Glucose utilization (%)	Arabinose utilization (%)	Hydrogen yielda (mmol mmol−1)	Hydrogen production rateb (mL L−1 day−1)	COD balance (%)
12	–	15	8.8	94	29	2.33	1016	71
6	–	46	17.6	81	23	0.19	143	111
6	0.26	56–66		91	18	0.53	413 ± 17c	103

– Not added.

^ammol of H₂ per mmol of substrate consumed.

^bVolume of H₂ produced per litter of bioreactor volume per day.

^cAverage and standard deviation of values measured in 5 days in the indicated period.