Fig. 3.

Averaged molar masses [Da] and rms radii [nm] of dextrans produced in experimental setups (a, b) (Fig. 1). c AF4 chromatograms (light scattering signal at 90°) of representative dextrans isolated from setup A. d Differential weight fractions of the dextrans depicted in Fig. 2c. Data are expressed as average of three biological replicates with ± SD, respectively. e Photographs of dextrans produced at pH 5.5 and pH 4.0 redissolved in a concentration of 5% (w/v) in water; control (ctrl): pure water