Biodegradation of polyethylene and polystyrene: From microbial deterioration to enzyme discovery

Biotechnology Advances, Journal Year: 2022, Volume and Issue: 60, P. 107991 - 107991

Published: May 31, 2022

The global production of plastics has continuously been soaring over the last decades due to their extensive use in our daily life and industries. Although synthetic offer great advantages from packaging construction electronics, low biodegradability induce serious plastic pollution that damage environment, human health make irreversible changes ecological cycle. In particular, containing only carbon-carbon (C-C) backbone are less susceptible degradation lack hydrolysable groups. representative polyethylene (PE) polystyrene (PS) account for about 40% total production. Various chemical biological processes with potential have developed recycle reuse, but biodegradation seems be most attractive eco-friendly method combat this growing environmental problem. review, we first summarize current advances PE PS biodegradation, including isolation microbes degrading enzymes different sources. Next, state-of-the-art techniques used evaluating monitoring degradation, scientific toolboxes enzyme discovery as well challenges strategies intensively discussed. return, it inspires a further technological exploration expanding diversity species enzymes, disclosing essential pathways developing new approaches utilize waste feedstock recycling upcycling.

Language: Английский

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Biotechnological methods to remove microplastics: a review

Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 21(3), P. 1787 - 1810

Published: Feb. 8, 2023

Language: Английский

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Assessing the Release of Microplastics and Nanoplastics from Plastic Containers and Reusable Food Pouches: Implications for Human Health

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(26), P. 9782 - 9792

Published: June 21, 2023

This study investigated the release of microplastics and nanoplastics from plastic containers reusable food pouches under different usage scenarios, using DI water 3% acetic acid as simulants for aqueous foods acidic foods. The results indicated that microwave heating caused highest into compared to other such refrigeration or room-temperature storage. It was found some could many 4.22 million microplastic 2.11 billion nanoplastic particles only one square centimeter area within 3 min heating. Refrigeration storage over six months can also millions billions nanoplastics. Additionally, polyethylene-based pouch released more than polypropylene-based containers. Exposure modeling suggested estimated daily intake 20.3 ng/kg·day infants drinking microwaved 22.1 toddlers consuming dairy products polypropylene Furthermore, an in vitro conducted assess cell viability showed extracted container cause death 76.70 77.18% human embryonic kidney cells (HEK293T) at 1000 μg/mL concentration after exposure 48 72 h, respectively.

Language: Английский

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Biodegradation of different types of microplastics: Molecular mechanism and degradation efficiency

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 877, P. 162912 - 162912

Published: March 16, 2023

Language: Английский

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Recent trends in degradation of microplastics in the environment: A state-of-the-art review

Journal of Hazardous Materials Advances, Journal Year: 2023, Volume and Issue: 11, P. 100343 - 100343

Published: July 16, 2023

Microplastics (MPs) have become a global environmental concern due to their considerable harm the environment and humans. However, only few researches been published on total removal of MPs from environment. Traditional treatment procedures were unsuitable for secondary pollutant development toxicity concerns. As result, several strategies treating investigated in recent years. This review covered recently developed degradation strategies, such as abiotic biotic, well relevant mechanisms present state advancement. Every method has its own set limits, advantages, disadvantages. each technique's strengths constraints thoroughly examined. Some recommendations potential research directions provided based gaps information analyzed 109 publications, lack standardized methodologies evaluating quantifying process, pathway analysis, field application. review's goal is give an in-depth account different MPs' disintegration processes, along with summary one's advantages disadvantages limitations.

Language: Английский

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Microplastics in plant-soil ecosystems: A meta-analysis

Environmental Pollution, Journal Year: 2022, Volume and Issue: 308, P. 119718 - 119718

Published: July 6, 2022

Language: Английский

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Bioremediation of microplastics in freshwater environments: A systematic review of biofilm culture, degradation mechanisms, and analytical methods

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 863, P. 160953 - 160953

Published: Dec. 19, 2022

Microplastics, defined as particles <5 mm in diameter, are emerging environmental pollutants that pose a threat to ecosystems and human health. Biofilm degradation of microplastics may be an ecologically friendly approach. This review systematically summarises the factors affecting biofilm proposes feasible methods improve efficiency microplastic degradation. Environmentally insensitive microorganisms were screened, optimized, commercially cultured facilitate practical application this technology. For strain screening, technology should focus on microorganisms/strains can modify hydrophobicity microplastics, degrade crystalline zone metabolise additives microplastics. The biodegradation mechanism is also described; secreting extracellular oxidases hydrolases key for Measuring changes molecular weight distribution (MWD) enables better analysis behaviour has relatively few applications because its low efficiency; however, enrichment freshwater environments wastewater treatment plant tailwater currently most effective method treating with biofilms.

Language: Английский

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Fate of microplastics under the influence of climate change

iScience, Journal Year: 2023, Volume and Issue: 26(9), P. 107649 - 107649

Published: Aug. 16, 2023

Plastic pollution and climate change are two major environmental focuses. Having the forming potential due to ambient plastic pollution, fate of microplastics shall be inevitably impacted by global warming. This manuscript discusses destiny characterizes their considering framework planetary boundary. The routes for microplastic discharge include release stored in ice into sea when melts as a result temperature increase, flushing plastic/microplastic debris from shorelines adjacent water bodies increased rainfall, redistribution away source wind, accumulation soil drought. A perspective on impact aquatic organisms was discussed well.

Language: Английский

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A systematic review on the aging of microplastics and the effects of typical factors in various environmental media

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 162, P. 117025 - 117025

Published: March 29, 2023

Language: Английский

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Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations

Water Research, Journal Year: 2023, Volume and Issue: 245, P. 120581 - 120581

Published: Sept. 7, 2023

Language: Английский

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