Marine biodegradation of tailor-made polyhydroxyalkanoates (PHA) influenced by the chemical structure and associated bacterial communities.

Autor: Derippe G; CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France; Université Bretagne Sud, Institut de Recherche Dupuy de Lôme (IRDL), UMR CNRS 6027, 56321 Lorient, France., Philip L; CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France; SAS Plastic@Sea, Observatoire Océanologique de Banyuls, France., Lemechko P; Institut Régional des Matériaux Avancés (IRMA), 2 all. Copernic, 56270 Ploemeur, France., Eyheraguibel B; Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut de Chimie (ICCF), Clermont- Ferrand, France., Meistertzheim AL; SAS Plastic@Sea, Observatoire Océanologique de Banyuls, France., Pujo-Pay M; CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France., Conan P; CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France., Barbe V; Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France., Bruzaud S; Université Bretagne Sud, Institut de Recherche Dupuy de Lôme (IRDL), UMR CNRS 6027, 56321 Lorient, France., Ghiglione JF; CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France. Electronic address: ghiglione@obs-banyuls.fr.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2024 Jan 15; Vol. 462, pp. 132782. Date of Electronic Publication: 2023 Oct 14.
DOI: 10.1016/j.jhazmat.2023.132782
Abstrakt: Over recent years, biodegradable polymers have been proposed to reduce environmental impacts of plastics for specific applications. The production of polyhydroxyalkanoates (PHA) by using diverse carbon sources provides further benefits for the sustainable development of biodegradable plastics. Here, we present the first study evaluating the impact of physical, chemical and biological factors driving the biodegradability of various tailor-made PHAs in the marine environment. Our multidisciplinary approach demonstrated that the chemical structure of the polymer (i.e. the side chain size for short- vs. medium-chain PHA) which was intrinsically correlated to the physico-chemical properties, together with the specificity of the biofilm growing on plastic films (i.e., the associated 'plastisphere') were the main drivers of the PHA biodegradation in the marine environment.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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