Figure 2. Metabolic reaction rate monitoring.

(A) Chronoamperogram recorded at − 0.25 V vs. Ag/AgCl and 2000 rpm, 2.44 × 10⁷ cells.mL⁻¹ F. prausnitzii, 140 μM RF initially, 11 mM glucose was added at t = 5 min (zoom in inset); black stars indicates cyclic voltammetry recordings. (B) Corresponding cyclic voltammograms recorded at 10 mV.s⁻¹, 2000 rpm. (C) Corresponding evolution of RF consumption rate r (black line) and [RF] (grey line).