Fig. 4

BioLector cultivations of L. lactis B1629 (left panels) and L. sakei A1608 (right panels) with measurements for biomass (backscatter in arbitrary units; a.u.; upper panels) and pH (lower panels). Cultivations were carried out in BOH3-RWP, non-aerated conditions were achieved by sealing plate with adhesive aluminum foil. M17 complex medium with 20 g L⁻¹ glucose was used for L. lactis B1629, MRS medium was used for L. sakei A1608. MES buffer (pH 6.5) was added for buffering (0.2 M for L. lactis B1629, 0.1 M for L. sakei A1608). Cultivations were carried out at 30 °C, 600 rpm shaking frequency, 3 mm shaking diameter with humidity control (85%). Solid and dashed lines show the mean of 12 biological replicates with the blue and grey areas around representing standard deviation