2024-03-28T17:32:59Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/499522023-12-04T13:16:52Zcom_10324_1173com_10324_931com_10324_894col_10324_1371
Biodegradation of bioplastics under aerobic and anaerobic aqueous conditions: Kinetics, carbon fate and particle size effect
García Depraect, Octavio
Lebrero Fernández, Raquel
Rodriguez Vega, Sara
Bordel Velasco, Sergio
Santos Beneit, Fernando
Martínez Mendoza, Leonardo José
Börner, Rosa Aragão
Börner, Tim
Muñoz Torre, Raúl
Aerobic biodegradation
Biodegradación aerobia
Bioplastics
Bioplásticos
Circular economy
Economía circular
Organic recycling
Reciclaje orgánico
Producción Científica
The biodegradation of PHB, PHBV, PBS, PBAT, PCL, PLA, and a PLA-PCL blend was systematically compared under aerobic and anaerobic aqueous conditions assessing biodegradation kinetics, extent, carbon fate and particle size influence (in the range of 100–1000 µm). Under standard test conditions, PHB and PBHV were biodegraded anaerobically (83.9±1.3% and 81.2±1.7%, respectively) in 77 days or aerobically (83.0±1.6% and 87.4±7.5%) in 117 days, while PCL was only biodegraded (77.6±2.4%) aerobically in 177 days. Apparent biomass growth accounted for up to 30.5% of the total initial carbon depending on the bioplastic and environment. Maximum aerobic and anaerobic biodegradation rates were improved up to 331 and 405%, respectively, at the lowest particle size tested (100–250 µm). This study highlights the usefulness of a more detailed analysis of biodegradation kinetics and carbon fate to improve both the development and testing of biodegradable materials/products in the context of a circular bioeconomy.
Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (projects CLU 2017-09 and UIC 315)
2021-11-10T08:54:04Z
2021-11-10T08:54:04Z
2021
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
https://doi.org/10.1016/j.biortech.2021.126265
Bioresource Technology, 2021, vol. 344, part B, 126265
0960-8524
https://uvadoc.uva.es/handle/10324/49952
eng
https://www.sciencedirect.com/science/article/pii/S0960852421016072?via%3Dihub
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2021 The Authors
application/pdf
Elsevier