Fig. 1From: Intermittent fasting for microbes: how discontinuous feeding increases functional stability in anaerobic digestionExperimental design. Lab-scale biogas reactors were fed with VFAs using two different feeding regimes (Rdisco and Rconti), two different HRTs and two different substrate concentrations. The microbial community was analyzed based on the 16S rRNA gene (amplicon sequencing) for bacteria and the mcrA gene (T-RFLP) for methanogenic archaea. Substrate concentration of 37.2 gCOD L−1 corresponds to 27.4 g L−1 and 0.54 MBack to article page