Fig. 5From: Microalgal upgrading of the fermentative biohydrogen produced from Bacillus coagulans via non-pretreated plant biomassThe concentration of inlet (black column) and outlet (white column) CO2 (a) and H2 (b) through upgrading process by Oscillatoria sp. that grown on the microalgal cultures BG11, BG11– N and dist. H2O. *; represents a significantly different at (p ≤ 0.05) based on Duncanꞌs multiple range test. Tables represent the performance of biohydrogen upgrading process; % removal of CO2 (a) and % loss of H2(b)Back to article page