Fig. 7. Degradation of phenol in repeat treatment cycles by (A) P. mendocina cross-linked with (CCC1), (CCC2), (CCC3) and (CCC4) with a crosslinked number of cells equal to 5 × 108 for all samples (n = 2). (B) Rh. koreensis cross-linked with CCC3 and CCC4 stored in a frozen state with an initial number of cells (5 × 108). (C) Mixed cells (Rh. koreensis and P. mendocina) stored in a frozen state at −80 °C (CCC3 with a few crosslinked cells = 2 × 107 and CCC4 with number of crosslinked cells = 5 × 108). *The arrows show a change of incubation media and addition of a fresh portion of phenol solution.
