Anaerobic digestion of commercial PLA and PBAT biodegradable plastic bags: Potential biogas production and ¹H NMR and ATR-FTIR assessed biodegradation.

ABSTRACT: Bioplastics aim to substitute conventional plastics in most applications, a critical one being the collection of organic wastes for composting or anaerobic degradation. The anaerobic biodegradability of six commercial bags composed of PBAT or PLA/PBAT blends and certified as compostable [1] was studied using ¹H NMR and ATR-FTIR techniques. This study aims to elucidate if commercial bioplastic bags are biodegradable under conventional conditions found in anaerobic digestates. Results showed that all studied bags are hardly anaerobically biodegradable at mesophilic temperatures. The biogas yield resulting from the anaerobic digestion under laboratory conditions oscillated between 270.3 ± 45.5 L kgVS^-1 for a trash bag composed of 26.64 ± 0.03%/73.36 ± 0.03% PLA/PBAT and

SUBMITTER: Alvarez-Mendez SJ 

PROVIDER: S-EPMC10248121 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature