Figure 2: Detection of C. saccharolyticus DNA in the reactors at various times on use of a low organic loading rate, that is, 4 g total organic solids L−1 day−1. PCR was carried out with the EchA-F1 and EchA-R1 probes. The cellulose-specific celA-F1 and celA-R1 probes corroborated these findings and are therefore not shown.