Figure 3: Hydrogen production and consumption by C. vulgaris YSL01.
From: Photoautotrophic hydrogen production by eukaryotic microalgae under aerobic conditions
The headspace was recirculated at intervals with a gas mixture composed of 15% O2, 15% CO2 and 70% N2, and photoautotrophic hydrogen production was monitored throughout the 18-day cultivation period. Hydrogen production ceased and the sequential consumption of the accumulated hydrogen occurred when the oxygen level in the headspace exceeded the critical oxygen concentration. Individual data points represent the average of two independent experiments.
