Fig. 6.

Influence of the enzyme concentration (3.2, 10, 20, 40, 50, 60, 80 vol %) on post-consumer PET depolymerization in the presence of Humicola insolens cutinase (HiC). Experimental conditions: 35 g L⁻¹ PET; phosphate buffer (pH = 8.0 and 0.1 mol L⁻¹); 800 rpm; 70 °C; 7 days. Error bars indicate the standard deviations of triplicate measurements