Fig. 1From: Effect of pH and temperature on microbial community structure and carboxylic acid yield during the acidogenic digestion of duckweedVolatile Fatty Acid profiles of the acidogenic duckweed reactors over 21 days. Reactors were operated under: a acidic mesophilic; b acidic thermophilic; c basic mesophilic; d basic thermophilic conditions. Narrow stacked columns represent blank reactors (no inoculum) whereas thick stacked columns represent active (with inoculum) reactors. Error bars are cumulative standard deviations of the individual stacked barsBack to article page