BioResources

by Emir Erişir: The effect of gum arabic addition on lignosulfonate/polyvinyl alcohol composite films

Gum Arabic (GA) was evaluated in sodium lignosulfonate/polyvinyl alcohol composite films to improve mechanical stability and sustainability, but it failed to act as a compatibilizer under the tested conditions. Adding 25% GA did not eliminate structural defects, resulting in a decrease in tensile strength by up to 63%, and while it reduced aqueous mass loss moderately, it only served as a physical filler.

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Policies & Initiatives to Support the Increased Utilization of Urban & Reclaimed Wood in the United States

This study highlights that transitioning to a circular economy by utilizing urban and reclaimed wood can mitigate landfilling's environmental impacts while promoting job and business opportunities. The results demonstrated that initiatives require community engagement, extensive collaboration, and diverse operational strategies to yield substantial environmental, social, and economic benefits.

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by Ercan Oktan on the Impact of thinning levels on cone production in natural stands of Scots pine

Scots pine ( sylvestris L.) cone and seed production, crucial for its sustainability, is significantly affected by biotic and abiotic factors, with heavily thinned stands showing the highest cone production in both 2024 and 2025. In 2025, cone production increased markedly to 55.4 from 11.9 in 2024, with significant differences based on thinning level and growth characteristics (p < 0.05).

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Biomass to biocrude: A brief review of catalytic liquefaction

Biomass energy constitutes around 55% of global renewable energy consumption, and hydrothermal liquefaction (HTL) is pivotal for transforming fresh biomass with high moisture into liquid biofuels akin to conventional crude oil. Future studies should focus on the cost-effective development of bifunctional catalysts and enhancing reaction systems for improved heat and mass transfer efficiency.

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on the adhesion of coating films on laser engraved wood surface.

The study compares the adhesion of oil-based and water-based coatings on laser-engraved wood surfaces, revealing that the oil-based coating generally exhibits lower adhesion compared to the water-based variant. Notably, specific engraving parameters on spruce and oak improved oil-based adhesion, whereas adhesion of the water-based coating was significantly diminished on beech and some oak samples, with instances of cohesive failure observed in the wood layers.

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Simulation of moisture-induced shape changes of fused layer modeling wood/polylactic acid (PLA) composites

Fused layer modeling 3D printing now includes shape memory polymers (SMPs) like the climate-responsive wood/PLA composite, enabling 4D printing with programmable shape changes due to external stimuli. The study's two-dimensional mathematical model for predicting moisture-induced deformations in 4D printed objects achieved accuracy with a deviation of less than 6.5% compared to 3D scanning data.

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Fabrication of anti-counterfeiting films by dyeing cellulose nanofiber with berberine

Cellulose nanofiber-based films were developed with enhanced optical properties for anti-counterfeiting applications using eco-friendly cationic berberine, resulting in improved color, transparency, & color strength suitable for security paper documents. The grafting percentage was determined, & alterations in tensile strength & crystallinity were confirmed by XRD & FTIR analyses.

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Integration of 1st and 2nd generation bioethanol fuel production: Opportunities and limitations

Bioethanol, primarily produced from starch-rich grains and sugar cane, faces sustainability challenges due to limited feedstock supply, prompting interest in lignocellulosic materials for second-generation bioethanol production. Recent studies suggest that integrating first and second-generation bioethanol production can enhance ethanol final concentration and yield while reducing enzyme and water usage

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Modification of lignin-derived activated carbon with surfactants for removal of phenol

Lignin-derived activated carbon (AC) modified with cocoamidopropyl betaine (CAPB) effectively removes phenol from aqueous solutions, showing the highest adsorption at an optimal pH of 8.0 compared to AC modified with other surfactants. Additionally, ethanol facilitates high phenol recovery from AC/CAPB, indicating efficient regeneration.

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Graphene-starch based electrodes for flexible sensing applications

The research demonstrates the fabrication of eco-friendly interdigitated electrodes using graphene conductive ink on thermoplastic starch films derived from sugar palm starch, achieving a graphene layer thickness of 32.9 µm. The electrochemical analysis indicates that the charge transfer resistance increased from 8.46 × 10⁵ Ω to 3.36 × 10⁶ Ω with increasing electrode spacing from 1 mm to 3 mm, emphasizing the significance of electrode design in electron transfer efficiency.

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Comparative evaluation of hot air and ultrasonic sealing in paper cup manufacturing

Paper cup manufacturing relies on consistent heat sealing to ensure both liquid tightness and a visually appealing finish, with optimization of energy and seal quality being critical due to high production volumes. The newly developed mechanical testing device highlighted that ultrasonic sealing has an advantage in consistency relative to hot-air sealing, providing a repeatable evaluation tool for quality control in high-speed production lines.

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Comparative review of natural and synthetic binders for microbial fuel cell electrodes

Microbial fuel cells (MFCs) are emerging technologies that harness renewable energy and facilitate environmental remediation, but their performance is heavily reliant on the type of binder used for electrode construction. This review highlights that although synthetic binders possess superior electrochemical properties, natural binders present an environmentally sustainable and cost-effective alternative, potentially advancing MFC applications for large-scale implementation.

https://buff.ly/YrqhkBy