Current advances in the structural biology and molecular engineering of PETase

Frontiers in Bioengineering and Biotechnology, Journal Year: 2023, Volume and Issue: 11

Published: Sept. 19, 2023

Poly(ethylene terephthalate) (PET) is a highly useful synthetic polyester plastic that widely used in daily life. However, the increase postconsumer PET as waste recalcitrant to biodegradation landfills and natural environment has raised worldwide concern. Currently, traditional recycling processes with thermomechanical or chemical methods also result deterioration of mechanical properties PET. Therefore, it urgent develop more efficient green strategies address this problem. Recently, novel mesophilic PET-degrading enzyme (IsPETase) from Ideonella sakaiensis was found streamline at 30°C, albeit lower activity than chitinase chitinase-like enzymes. Consequently, molecular engineering PETases still required for further industrial applications. This review details current knowledge on IsPETase, MHETase, IsPETase-like hydrolases, including structures, ligand‒protein interactions, rational protein improved performance. In particular, applications engineered catalysts are highlighted, metabolic cell factories, immobilization surface display. The information expected provide insights complex polymers.

Language: Английский

---

The lesser of two evils: Enhancing biodegradable bioplastics use to fight plastic pollution requires policy makers interventions in Europe

Environmental Impact Assessment Review, Journal Year: 2023, Volume and Issue: 103, P. 107230 - 107230

Published: July 29, 2023

Plastic pollution is a ubiquitous and universally recognized environmental threat, bioplastics have emerged as potential solution to this issue in the last years. Being biobased biodegradable, reduced carbon footprint with respect plastics, they are not expected accumulate fragmentate environments plastics do. Nevertheless, some drawbacks such their slow biodegradation engineered (i.e., anaerobic digestion composting) natural soil water) been used by sceptics discredit bioplastics, induced policy makers use precautionary approach topic including ban of single products count inert materials organic fertilizers). Using simplified ecologic risk assessment analysis, Opinion paper aimed show that proven be intrinsically biodegradable always better choice than plastics. Having residence time about 1–10 years, likelihood causing harmful effects on living organisms 100–1000 times lower resides thousands years environments. Taking into consideration, asked revise recent regulations directives enhance diffusion fight plastic pollution. In sense, Single Use Directive 2019/904 may exclude bioplastic items from ban, European Regulation Fertilizers 2019/1009 residues fertilizers. Bioplastics collection within biowastes subsequent should also favoured, order force controlled biogas reduce leakage environment, resulting enhanced circularity products.

Language: Английский

---

Effect of the incorporation of β-acid rich hop extract on degradation in soil of polylactic acid (PLA) sheets

Reactive and Functional Polymers, Journal Year: 2024, Volume and Issue: 196, P. 105852 - 105852

Published: Feb. 4, 2024

Language: Английский

---

Improving wear resistance of epoxy resin using bio-oil from hemp biomass: a sound strategy to reduce environmental impact

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145003 - 145003

Published: Feb. 1, 2025

Language: Английский

---

Novel aromatic phosphonates as flame retardants for polybutylene succinate

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111369 - 111369

Published: April 1, 2025

Language: Английский

---

Chitosan composite films with high-content technical alkali lignin

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 311, P. 144003 - 144003

Published: May 6, 2025

Language: Английский

---

Bioplastics as next-generation eco-friendly materials: a comprehensive review

Clean Technologies and Environmental Policy, Journal Year: 2025, Volume and Issue: unknown

Published: June 5, 2025

Language: Английский

---

Raising the Volume: How Regulations and Consumer Market Trends Have Increased the Volume of Cannabis Packaging Waste in California

Journal of Testing and Evaluation, Journal Year: 2024, Volume and Issue: 52(6), P. 3253 - 3271

Published: Nov. 1, 2024

Abstract The early cannabis legalization movement was linked to the environmental movement, and although advocates envisioned an environmentally friendly industry, regulations market trends complicated matters. A seismic event for waste repurposing of electronic nicotine delivery system (ENDS) technology as “vape pens,” which are more accurately referred (ECDS). With adoption this technology, a stream that had lower weight largely compostable shifted become in (e-waste) (ECDS batteries) became 14 % 30 total sales, depending on year state. Unfortunately, passed since introduction ECDS devices frequently overlook often ignore could be classified hazardous or universal waste. This study is novel attempt estimate volume consumer packaging produced California each year, including ECDS-related e-waste, compare it with other types household (HHW) produced. Additionally, analyzed determine what degree state contributed influenced amount generated. In 2022, almost large 16,805 US tons (15,245,240 kilograms) HHW pharmaceuticals 2021. Although have robust infrastructure place reverse distribution, no such exists at scale. Despite rules around recycling being ambiguous, many businesses do engage collection sustainable practices California. Regulations must changed by regulators allow licensees better management options, will result less contamination, thus, cleaner cannabis.

Language: Английский

---

Make it easier to be green: Solutions for a more sustainable planet

PLoS Biology, Journal Year: 2023, Volume and Issue: 21(3), P. e3002064 - e3002064

Published: March 30, 2023

We urgently need solutions to make our use of the planet’s resources more sustainable and protect nature. A new collection articles outlines a vision for better tomorrow that draws on advances in development green technologies.

Language: Английский

---

An overview of present treatment and valorification methods used for plastic waste

Romanian Journal of Ecology & Environmental Chemistry, Journal Year: 2023, Volume and Issue: 5(1), P. 50 - 64

Published: July 10, 2023

Most frecquent used methods for recycling and treating plastic waste, with their advantages disadvantages were analysed investigated. Plastic waste present a slow degradation rate in nature, almost one thousand years, therefore it is important to address this type of pollution, by finding the most sustainable reducing percentage that ends up landfills or ocean. The negative impact include bioaccumulation organisms exposure micro nano plastics end environment from degrading macro directly products contain microplastic, like exfoliating personal care products.

Language: Английский

---