Biodegradation of untreated plasticizers-free linear low-density polyethylene films by marine bacteria
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Publication date
12/2024
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01A - Journal article
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Marine Pollution Bulletin
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Volume
209
Issue / Number
Part A
Pages / Duration
117115
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Elsevier
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Abstract
Polyethylene significantly contributes to marine plastic pollution. This study focuses on isolating bacteria from sea water and microplastic samples collected from the Tyrrhenian Sea and evaluating their ability to degrade virgin plasticizers-free linear low-density polyethylene (LLDPE) films. The isolates grew on the plastic film under aerobic conditions in shaken flasks leading to LLDPE mass losses of up to 2.597 ± 0.971 % after 60 days incubation. Biofilm formation on the film surface was confirmed by adhered protein quantification while film surface erosion and appearance of functional groups were revealed using SEM and FTIR analyses confirming biodegradation capabilities especially for isolates Bacillus velezensis MT9, Vreelandella venusta MT1 and Vreelandella titanicae MT11.
This is the first report on the biodegradation of plasticizers-free non pretreated LLDPE films by marine Bacillus sp. and Vreelandella sp.; most of the LLDPE biodegradation studies have been so far performed on plasticizer containing, pre-treated, or naturally weathered films.
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ISSN
0025-326X
1879-3363
1879-3363
Language
English
Created during FHNW affiliation
Yes
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Publication status
Published
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Peer review of the complete publication
Open access category
Hybrid
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Citation
Bajo, K., Romano, R., Kolvenbach, B., Nazemi, S. A., Shahgaldian, P., Corvini, P., Fava, F., & Raddadi, N. (2024). Biodegradation of untreated plasticizers-free linear low-density polyethylene films by marine bacteria. Marine Pollution Bulletin, 209(Part A), 117115. https://doi.org/10.1016/j.marpolbul.2024.117115