Fig. 2 e Effect of dilution with supplementation yeast
extract þ NaHCO3 (A), and without supplementation (B) on
the cumulative hydrogen production of DFE by Rps.
palustris TN1 under anaerobic-low light condition
(3000 lux) at 30 C. In each panel, symbols are A for 1£, -
for 2£, :for 3£, C for 4£, and * for 5£; 1£ means
undiluted DFE, 2£ means 50% diluted DFE.