Figure 3
From: Linking aggregation of Aspergillus niger spores to surface electrostatics: a theoretical approach

Spore aggregation in stirred suspensions of different pH and NaCl concentrations. Diagrams show means and standard deviations (error bars) of estimated relative amounts of spores present in aggregates after 80, 100, and 120 min of stirring (steady state). The pH-dependent data (a) refer to a NaCl concentration of 0.154 mol L−1 and the data determined as a function of salt concentration (b) refer to a pH of 2.5.