Biodegradation of polyhydroxyalkanoates: current state and future prospects

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 24, 2025

Polyhydroxyalkanoates (PHAs) are biobased and biodegradable polymers that offer a sustainable alternative to conventional plastics, addressing the escalating concerns over plastic pollution. While their environmental advantages well-documented, efficient degradation of PHAs in natural engineered environments remains critical component lifecycle. This review provides comprehensive overview PHA-degrading bacteria isolated from diverse ecosystems highlights pivotal role PHA depolymerases achieving circularity. Microbial adaptation conditions, such as extreme temperatures, salinity, pH, significantly influences enzymes properties, including stability, activity, substrate specificity enzymes. These adaptations often enhance enzyme, performance, enabling functionality under challenging conditions. Consequently, extremophilic microorganisms invaluable resources for discovering engineering robust industrial applications. underscores urgent need further research improve ecological economic sustainability waste management.

Language: Английский

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Organic-inorganic PVA/Carbon microwave absorption composites: tuning rheology to enable structurally diverse fabrication

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120057 - 120057

Published: Jan. 1, 2025

Language: Английский

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Eco-friendly additives for biodegradable polyesters: Recent progress in performance optimization and environmental impact reduction

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01395 - e01395

Published: April 1, 2025

Language: Английский

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Responses of soil physical and chemical properties to degradable and non-degradable microplastics

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116898 - 116898

Published: May 1, 2025

Language: Английский

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Biodegradable Fiber Preparation Technique to Meet Industrial Requisites Through Sheath-Core Melt-Spinning

Polymers, Journal Year: 2025, Volume and Issue: 17(4), P. 527 - 527

Published: Feb. 18, 2025

Biodegradable polymers are essential for sustainable plastic life cycles and contribute to a carbon-neutral society. Here, we explore the development of biodegradable fibers with excellent mechanical properties using polypropylene (PP) thermoplastic starch (TPS) blends. To address inherent immiscibility between hydrophobic PP hydrophilic TPS, modification masterbatch approach were employed. Melt-spinning trials demonstrated that modified TPS blends (mPP/TPS) exhibited spinnability processability comparable virgin PP. A sheath-core configuration was introduced enhance biodegradability while maintaining structural stability, an mPP-rich part as core TPS-rich promoter (BP) sheath. SEM DSC analyses confirmed strong interfacial compatibility, uniform fiber morphology, single melting points, indicating no phase separation. Mechanical testing showed met industrial requirements, achieving tenacity up 2.47 gf/den tensile strain above 73%. The addition BP increased rate, PP/TPS/BP 65.93% biodegradation after 115 days, compared 37.00% BP-free fibers. These results demonstrate feasibility blending petroleum-based bio-based components create balance biodegradability, spinnability, performance, offering solution applications.

Language: Английский

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Life cycle and environmental impact assessment of biopolymer-based packaging vs. conventional plastics in the food industry

Materials Today Communications, Journal Year: 2025, Volume and Issue: 46, P. 112806 - 112806

Published: May 12, 2025

Language: Английский

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