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Upcycling of Enzymatically Recovered Amino Acids from Textile Waste Blends: Approaches for Production of Valuable Second-Generation Bioproducts.
ACS Sustain Resour Manag
January 2025
Department of Agrobiotechnology, IFA-Tulln, Institute of Environmental Biotechnology, BOKU University, Vienna, Konrad-Lorenz-Strasse 20, 3430 Tulln an der Donau, Austria.
Tremendous quantities of textile waste generated and primarily landfilled annually represent a huge risk of contaminating the environment, together with loss of valuable resources. Especially, blended fabrics further pose a challenge for recycling and valorization strategies, while enzymatic hydrolysis offers a highly specific and environmentally friendly solution. In this study, we demonstrate that proteases specifically hydrolyze the wool components in blends with polyester, allowing recovery of pure polyester fibers as well as amino acids and peptides as platform molecules for further valorization.
View Article and Find Full Text PDFTowards circularity for agro-waste: Minimal soil hazards of olive pomace bioconverted frass by insect larvae as an organic fertilizer.
J Environ Manage
January 2025
CESAM - Centre for Environmental and Marine Studies, Department of Biology, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal.
As global populations escalate and the demand for food and feed intensifies, the generation of agri-food waste is becoming an increasingly critical issue. Addressing this challenge is crucial for optimizing food production and advancing sustainable waste management practices. In this context, insects, including the Black Soldier Fly (BSF, Hermetia illucens), present opportunities for circularity through the bioconversion of organic waste.
View Article and Find Full Text PDFSustainable Skincare Innovation: Cork Powder Extracts as Active Ingredients for Skin Aging.
Pharmaceuticals (Basel)
January 2025
UCIBIO-Applied Molecular Biosciences Unit, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
: An emerging practice within the concept of circular beauty involves the upcycling of agro-industrial by-products. Cork processing, for instance, yields by-products like cork powder, which presents an opportunity to create value-added cosmetic ingredients. Building upon our previous research, demonstrating the antioxidant potential of hydroalcoholic extracts derived from two distinct cork powders (P0 and P1), in this work, aqueous extracts were prepared and analyzed.
View Article and Find Full Text PDFGreen Chemistry Within the Circular Bioeconomy to Harness Chestnut Burr Extract's Synergistic Antimicrobial Activity Against .
Molecules
January 2025
Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro, 53100 Siena, Italy.
Green chemistry principles are pivotal in driving sustainable and innovative solutions to global health challenges. This study explores a hydroalcoholic extract from (chestnut) burrs, an underutilized natural resource, as a potent source of antimicrobial compounds against (). The extract demonstrated significant bactericidal activity, synergizing effectively with clarithromycin and showing additive effects with metronidazole.
View Article and Find Full Text PDFDe Novo Assembly of the Polyhydroxybutyrate (PHB) Producer Strain H1 Genome and Genomic Analysis of PHB Production Machinery.
Microorganisms
January 2025
Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, 70125 Bari, Italy.
Polyhydroxybutyrate (PHB) is a biodegradable natural polymer produced by different prokaryotes as a valuable carbon and energy storage compound. Its biosynthesis pathway requires the sole expression of the operon, although auxiliary genes play a role in controlling polymer accumulation, degradation, granule formation and stabilization. Due to its biodegradability, PHB is currently regarded as a promising alternative to synthetic plastics for industrial/biotechnological applications.
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