Figure 5From: Simultaneous hydrogen and ethanol production from cascade utilization of mono-substrate in integrated dark and photo-fermentative reactor Hydrogen production and acetate accumulation in IDPFR at different inoculation ratios of E. harbinese B49 to R. faecalis RLD-53. (a) 1:10; (b) 1:20; (c) 1:30.Back to article page