Fig. 2.

Cell growth and pH of C. thermocellum DSM1313::pHK‐LCC. Cultivation was carried out at 60°C under the agitation of 200 rpm for up to 32 h. The cell growth in the presence of PET film and its degradation products at a constant concentration of 20 mM was determined by monitoring the optical density of cultures at 600_nm (OD₆₀₀). Dashed lines indicate the pH values determined along with the cell growth with or without PET films. Error bars indicate the standard deviations determined from at least triplicate measurements.