Strain and frequency measurements were carried out using an Anton Paar Physica MCR101 rheometer, measuring 2 mL of sample in 7 mL Sterilin vials. Measurements were performed using a vane geometry with gap distance between the geometry and the bottom of the sample vial set to 1.8 mm and temperature set to 25 °C. All strain and frequency measurements were carried out in triplicate and values averaged. Error bars represent the standard deviation between the replicates. Frequency sweeps were performed under a strain of 0.1 %. Strain sweeps were performed at an angular frequency of 10 rad/s.