Aerobic biodegradation in freshwater and marine environments of textile microfibers generated in clothes laundering: Effects of cellulose and polyester-based microfibers on the microbiome

Zambrano, Marielis C.; Pawlak, Joel J.; Daystar, Jesse; Ankeny, Mary; Goller, Carlos C.; Venditti, Richard A.

doi:10.1016/j.marpolbul.2019.110826

Cited by 77 publications

(68 citation statements)

References 82 publications

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“…Taken together with congruent results from SEM observations, we consider that the radiolabeled leucine incorporation measurement was a good proxy of their biodegradation. Our results are consistent with previous findings showing the biodegradation in soil, compost, or seawater for PBAT (Saadi et al, 2013;Weng et al, 2013;Wang et al, 2021), Mater-Bi (Kim et al, 2000), Bioplast 3 , PHBV (Arcos-Hernandez et al, 2015;Deroiné et al, 2015;Wang et al, 2021), and cellulose (Salehpour et al, 2018;Kliem et al, 2020;Zambrano et al, 2020). It is interesting to note that PLA, a plastic considered to be compostable and biodegradable in soil and compost 3 https://fr.biotec.de/ (Ren et al, 2007), did not show any sign of biodegradation under our marine experimental conditions.…”

Section: Convergent Signs Of Biodegradation For Some Plastic Typessupporting

confidence: 93%

Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks

et al. 2021

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The European Parliament recently approved a new law banning single-use plastic items for 2021 such as plastic plates, cutlery, straws, cotton swabs, and balloon sticks. Transition to a bioeconomy involves the substitution of these banned products with biodegradable materials. Several materials such as polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), poly(butylene succinate) (PBS), polyhydroxybutyrate-valerate (PHBV), Bioplast, and Mater-Bi could be good candidates to substitute cotton swabs, but their biodegradability needs to be tested under marine conditions. In this study, we described the microbial life growing on these materials, and we evaluated their biodegradability in seawater, compared with controls made of non-biodegradable polypropylene (PP) or biodegradable cellulose. During the first 40 days in seawater, we detected clear changes in bacterial diversity (Illumina sequencing of 16S rRNA gene) and heterotrophic activity (incorporation of 3H-leucine) that coincided with the classic succession of initial colonization, growth, and maturation phases of a biofilm. Biodegradability of the cotton swab sticks was then tested during another 94 days under strict diet conditions with the different plastics as sole carbon source. The drastic decrease of the bacterial activity on PP, PLA, and PBS suggested no bacterial attack of these materials, whereas the bacterial activity in PBAT, Bioplast, Mater-Bi, and PHBV presented similar responses to the cellulose positive control. Interestingly, the different bacterial diversity trends observed for biodegradable vs. non-biodegradable plastics allowed to describe potential new candidates involved in the degradation of these materials under marine conditions. This better understanding of the bacterial diversity and activity dynamics during the colonization and biodegradation processes contributes to an expanding baseline to understand plastic biodegradation in marine conditions and provide a foundation for further decisions on the replacement of the banned single-used plastics.

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Section: Convergent Signs Of Biodegradation For Some Plastic Typessupporting

confidence: 93%

Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks

et al. 2021

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“…Therefore, there is a concern that they may damage the marine ecosystem in a manner similar to the damage caused by commodity plastics. In addition to the aliphatic polyesters PHA and PCL, several polymers, such as cellulose [40][41][42], agarose [43,44], proteins [45], and poly(vinyl alcohol) (PVA) [46], have been suggested to exhibit relatively high biodegradability in marine environments.…”

Section: Enzymatic and Environmental Degradability Of Biodegradable Plasticsmentioning

confidence: 99%

Biodegradability of poly(3-hydroxyalkanoate) and poly(ε-caprolactone) via biological carbon cycles in marine environments

Suzuki

Tachibana

Kasuya

2020

Polym J

161

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Approximately 4.8–12.7 million tons of plastic waste has been estimated to be discharged into marine environments annually by wind and river currents. The Ellen MacArthur Foundation warns that the total weight of plastic waste in the oceans will exceed the total weight of fish in 2050 if the environmental runoff of plastic continues at the current rate. Hence, biodegradable plastics are attracting attention as a solution to the problems caused by plastic waste. Among biodegradable plastics, polyhydroxyalkanoates (PHAs) and poly(ε-caprolactone) (PCL) are particularly noteworthy because of their excellent marine biodegradability. In this review, the biosynthesis of PHA and cutin, a natural analog of PCL, and the biodegradation of PHA and PCL in carbon cycles in marine ecosystems are discussed. PHA is biosynthesized and biodegraded by various marine microbes in a wide range of marine environments, including coastal, shallow-water, and deep-sea environments. Marine cutin is biosynthesized by marine plants or obtained from terrestrial environments, and PCL and cutin are biodegraded by cutin hydrolytic enzyme-producing microbes in broad marine environments. Thus, biological carbon cycles for PHA and PCL exist in the marine environment, which would allow materials made of PHA and PCL to be quickly mineralized in marine environments.

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“…Plastic particles or fibres are subjected to several abiotic degradative reactions in aquatic ecosystems, including photodegradation (UV catalysed oxidation), hydrolysis and mechanical degradation (Gewert et al, 2018;Zambrano et al, 2019Zambrano et al, , 2020. Although available data concerning the environmental degradation of plastic microfibres is scarce, it is expected that the degradation dynamics of these pollutants is analogous to other plastic particles.…”

Section: Non-biological Degradationmentioning

confidence: 99%

Plastic microfibre pollution: how important is clothes’ laundering?

Gaylarde

Baptista-Neto

Fonseca

2021

Heliyon

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Microfibres from clothes laundering are the main source of primary microplastics in oceans. Fibres are frequently the most common plastics found in aquatic animals. The main plastic in polluting microplastics is PET. Various toxic substances are incorporated in textile microfibres. Fibres contribute up to 90% total plastic mass in wastewater treatment plants. A Standard Test is required to allow the development of microfibre release control actions.

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Aerobic biodegradation in freshwater and marine environments of textile microfibers generated in clothes laundering: Effects of cellulose and polyester-based microfibers on the microbiome

Cited by 77 publications

References 82 publications

Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks

Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks

Biodegradability of poly(3-hydroxyalkanoate) and poly(ε-caprolactone) via biological carbon cycles in marine environments

Plastic microfibre pollution: how important is clothes’ laundering?

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