Fig. 3From: Formation of phenylacetic acid and phenylpropionic acid under different overload conditions during mesophilic and thermophilic anaerobic digestionVFAs during 28 days of mesophilic anaerobic digestion from reactors reflecting different overload conditions (low, medium, high): a Sum of VFA (C1–C5) [mM]. b Acetate [mM]. Cont control, Tryp tryptophan, Tyr tyrosine, Phe phenylalanine, ME meat extract, Cas caseinBack to article page