Fig. 1From: Less biomass and intracellular glutamate in anodic biofilms lead to efficient electricity generation by microbial fuel cellsAverage values of a current density (mA m−2) and b power density (mW m−2) in MFC-1 (closed circles) and MFC-2 (open circles), as well as c current density (mA m−2) and d power density (mW m−2) in MFC-1′ (closed triangles) and MFC-2′ (open triangles) during the operational periodBack to article page