biopolymers – Page 2

Carvacrol Encapsulation in Chitosan–Carboxymethylcellulose–Alginate Nanocarriers for Postharvest Tomato Protection

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Researchers created tiny nanocarriers made from natural biopolymers that can deliver carvacrol, a natural antimicrobial compound from oregano and thyme, to protect tomatoes from fungal rot after harvest. These nano-sized delivery systems were more effective than the unencapsulated carvacrol at fighting three common postharvest fungal pathogens. The treatment is safe and could offer a sustainable alternative to conventional fungicides for keeping harvested tomatoes fresh longer.

Tailoring the Mechanical Properties of Fungal Mycelium Mats with Material Extrusion Additive Manufacturing of PHBH and PLA Biopolymers

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Researchers have developed a novel method to make mushroom-based materials stronger by coating them with biodegradable plastics using 3D printing technology. This approach combines fungal mycelium from Fomes fomentarius with eco-friendly polymers to create composites that are significantly stronger than plain mycelium while remaining fully compostable. The resulting materials could be used for flexible devices, interior design, and other applications where both strength and environmental sustainability are important.

Physicochemical Characterization and Antimicrobial Analysis of Vegetal Chitosan Extracted from Distinct Forest Fungi Species

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Researchers extracted and tested chitosan from five different mushroom species as an alternative to traditional crab-derived chitosan for allergic individuals. Using various scientific techniques, they found that chitosan from lion’s mane mushroom (H. erinaceus) had the best ability to dissolve in solution and kill bacteria, making it promising for food preservation. The study shows that mushroom-based chitosan can work as well as or better than shellfish-derived chitosan while avoiding allergen risks, offering a sustainable solution for food packaging and preservation.

Tailoring the Mechanical Properties of Fungal Mycelium Mats with Material Extrusion Additive Manufacturing of PHBH and PLA Biopolymers

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Researchers developed a new way to make fungal mushroom mats stronger by printing biodegradable plastic patterns onto them using 3D printing technology. The resulting composite materials combined the sustainability of fungal products with improved strength, making them suitable for flexible applications like smart textiles and lightweight parts. Both tested polymers (PHBH and PLA) enhanced the mycelium’s mechanical properties, with PLA showing superior strength improvements while PHBH offered home compostability.

Tailoring the Mechanical Properties of Fungal Mycelium Mats with Material Extrusion Additive Manufacturing of PHBH and PLA Biopolymers

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Researchers have developed a new method to strengthen mushroom-based materials by using 3D printing to apply layers of plant-based plastics onto them. These reinforced materials have significantly improved strength while remaining fully biodegradable and compostable. This innovation makes fungal mycelium materials suitable for more demanding applications like flexible textiles and wearable electronics, offering a sustainable alternative to petroleum-based products.

Caseinate–Carboxymethyl Chitosan Composite Edible Coating with Soybean Oil for Extending the Shelf Life of Blueberry Fruit

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This study developed a special edible coating made from natural proteins and carbohydrate polymers with soybean oil to keep blueberries fresh longer. When blueberries were dipped in this coating and refrigerated, they lost less water, stayed firmer, and developed less mold compared to uncoated berries. The coating worked like an invisible protective layer that helped blueberries maintain their quality for up to 28 days, potentially reducing food waste and spoilage.

Impact of Fomes fomentarius growth on the mechanical properties of material extrusion additively manufactured PLA and PLA/Hemp biopolymers

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This research explores how mushroom mycelium can be integrated with 3D-printed plastic materials to create sustainable biocomposites. Scientists tested whether Fomes fomentarius fungus growing on printed PLA and hemp-reinforced plastic specimens affected their strength and stiffness. Results showed that while pure PLA remained largely unaffected by mycelium growth, hemp-reinforced materials experienced some weakening, with effects depending on the duration of fungal colonization and the internal structure of the printed materials. These findings suggest potential applications in developing eco-friendly building materials and insulation products that combine the benefits of living organisms with manufactured polymers.

Agricultural Waste-Derived Biopolymers for Sustainable Food Packaging: Challenges and Future Prospects

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This review explores how agricultural waste like rice husks and corn cobs can be transformed into eco-friendly packaging materials to replace harmful plastic. Currently, most plastics take hundreds of years to decompose and cause serious environmental damage, but biopolymers derived from farm waste are completely biodegradable. The article discusses various ways to extract these materials and improve their properties, while identifying remaining challenges that need to be solved before widespread commercial adoption.

The Effects of the Substrate Length and Cultivation Time on the Physical and Mechanical Properties of Mycelium-Based Cushioning Materials from Salix psammophila and Peanut Straw

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Researchers developed eco-friendly cushioning materials by growing mushroom mycelium (fungal networks) on agricultural waste like willow and peanut straw. These materials match the performance of plastic foam used in packaging but are completely biodegradable and made from renewable resources. By adjusting how long the mushrooms grow and the size of the substrate pieces, scientists can control the final product’s strength, flexibility, and water resistance.

Cell walls of filamentous fungi – challenges and opportunities for biotechnology

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Filamentous fungi like Aspergillus and Trichoderma are workhorses of the biotechnology industry, producing enzymes and pharmaceuticals worth billions annually. The cell wall surrounding these fungal cells acts as both a barrier and a filter, affecting how well proteins can be secreted into the fermentation medium. By genetically modifying cell wall components, scientists can improve enzyme production efficiency. Additionally, the billions of tons of fungal biomass left over from fermentation contain valuable chitin and chitosan that could be extracted and reused, creating a more sustainable manufacturing process.

Research Topic: biopolymers