Extended Data Fig. 9: Biodegradation assessment of PLA films.
From: An engineered enzyme embedded into PLA to make self-biodegradable plastic
a, Aerobic biodegradation of films in industrial compost conditions. Biodegradation of cellulose film (black), PLA + MBs + ProteinTFLTIER film (blue), and PLA + MBs film control (green). The yield of film biodegradation was assessed using the amount of CO2 released following ISO 14855-1:2012 standards. b, Anaerobic biodegradation of PLA films in mesophilic (37 °C) digestion conditions. Anaerobic biodegradation of PLA + MBs + ProteinTFLTIER film (blue) and PLA + MBs film control (black). Each filled symbol represents the mean value ± s.d. (n = 3 independent experiments). The rate of biodegradation was assessed by considering the ratio between the mass of CH4 and CO2 gases produced, and the mass of carbon initially introduced.
