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Exploring the biodegradation of PET in mangrove soil and its intermediates by enriched bacterial consortia

2025-07-09Research article Open access
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datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorSaidu, Muhammad Bashir
dc.contributor.authorMoreira, Irina S.
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorWu, Rongben
dc.contributor.authorHo, Yuen-Wa
dc.contributor.authorFang, James Kar-Hei
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorGonçalves, David
dc.date.accessioned2025-09-11T06:42:17Z
dc.date.available2025-09-11T06:42:17Z
dc.date.issued2025-07-09
dc.description.abstractThe biodegradation of Polyethylene terephthalate (PET) is important due to the environmental impact of plastic waste. This study investigates the degradation of PET films in soil microcosms, with and without mangrove plants, and with mangrove plants bioaugmented with a bacterial consortium (Bacillus sp.- GPB12 and Enterococcus sp.- WTP31B-5) while following the evolution of soil microcosm microbiome. The ability of bacterial consortia retrieved from soil microcosms of each tested condition to degrade PET intermediates - bis(2-hydroxyethyl) terephthalate (BHET), terephthalic acid (TPA), and monoethylene glycol (MEG) was also assessed. In the microcosms’ assays with mangrove plants, variations in functional groups and surface morphology detected by FTIR and SEM analysis indicated PET degradation. Soil microcosms microbiome evolved differently according to the conditions imposed, with dominance of phylum Proteobacteria in all final microcosms. After 270 days, bacterial consortia retrieved from all soil microcosms revealed to be able to completely degrade TPA within three days. MEG degradation reached ca. 84% using the consortium retrieved from the microcosm with bioaugmented mangrove plants. BHETdegradation was ca. 96% with the consortium obtained from the microcosm with non-bioaugmented mangrove plants. These intermediates are key molecules in PET degradation pathways; thus, their degradation is an indicator of biodegradation potential. To the best of authors’ knowledge, this is the first report on biodegradation of PET, BHET, TPA, and MEG by microbial community from mangrove soil, providing insights into key taxa involved in PET degradation. These findings can pave a way to develop bioremediation strategies and more efficient waste management solutions.eng
dc.identifier.citationSaidu, M. B., Moreira, I. S., Amorim, C. L., & Wu, R. et al. (in press). Exploring the biodegradation of PET in mangrove soil and its intermediates by enriched bacterial consortia. Environmental Technology. https://doi.org/10.1080/09593330.2025.2521762
dc.identifier.doi10.1080/09593330.2025.2521762
dc.identifier.eid105010516943
dc.identifier.issn0959-3330
dc.identifier.otherf6b80d6a-48ad-45e9-a2ca-26a57a3cf849
dc.identifier.pmid40629992
dc.identifier.urihttp://hdl.handle.net/10400.14/54782
dc.identifier.wos001524887500001
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBiodegradation
dc.subjectBis(2-hydroxyethyl) terephthalate
dc.subjectMonoethylene glycol
dc.subjectPolyethylene terephthalate (PET)
dc.subjectTerephthalic acid
dc.titleExploring the biodegradation of PET in mangrove soil and its intermediates by enriched bacterial consortiaeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.titleEnvironmental Technology
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aa

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