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Fig. 1 | Biotechnology for Biofuels

Fig. 1

From: Lignin intermediates lead to phenyl acid formation and microbial community shifts in meso- and thermophilic batch reactors

Fig. 1Fig. 1

a Cumulative methane production (NmL) in grey, concentrations of lignin intermediates (mM) in green (triangle), sum of phenyl acids (mM) in blue (diamond), and acetate concentrations (mM) in red (circle) of mesophilic samples fed with gallic (upper row), syringic (middle row), and vanillic acid (lower row) under low (left column), medium (middle column), and high (right column) overload conditions from day 0 to day 28. Marker points and boxes show median and percentiles (25–75%), respectively. b Cumulative methane production (NmL) in grey, concentrations of lignin intermediates (mM) in green (triangle), sum of phenyl acids (mM) in blue (diamond), and acetate concentrations (mM) in red (circle) of mesophilic samples fed with ferulic (upper row) and coumaric acid (lower row) under low (left column), medium (middle column), and high (right column) overload conditions from day 0 to day 28. Marker points and boxes show median and percentiles (25–75%), respectively

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