20.500.12556/RUP-22544 Chemical and bioactivity profiling of extractives from tropical wood residues Ipe, Merbau, and Jatoba Wood residues and by-products from the furniture industry represent an underutilized resource with strong potential for integration into circular economy strategies. Extractives derived from these materials are rich in bioactive compounds, making them attractive candidates for bio-based product development. Although the functional properties of wood extractives are well recognized, their systematic recovery and characterization remain insufficiently explored in the context of green chemistry and sustainability. This study investigated the chemical composition and bioactivity of extractives obtained from industrial residues of three tropical hardwoods: Ipe (Handroanthus spp.), Merbau (Intsia spp.), and Jatoba (Hymenaea courbaril). Extractives were obtained via Pressurized Solvent Extraction (PSE) and characterized using gas chromatography (GC-FID and GC-MS). Ultrasound-assisted extraction (UAE) was subsequently applied for bioactivity evaluation. Green metrics, including the simple E-factor (sEF) and unit energy (UEC), were calculated to assess basic environmental efficiency. Gravimetric results showed a predominance of hydrophilic fractions (up to 97 % in Merbau), with major constituents including phenolics, fatty acids, flavonoids, and resin acids. Merbau and Jatoba extracts exhibited strong antioxidant capacity (IC50 < 75 μg/mL), while preliminary antimicrobial screening indicated selective activity of Merbau and Ipe against Staphylococcus aureus and Staphylococcus epidermidis, with Ipe also inhibiting Streptococcus pyogenes. These findings highlight tropical wood residues as renewable sources of bioactive compounds and support their valorisation in sustainable bio-based applications. tropical wood valorisation green extraction antioxidant capacity bioactivity true false true Angleški jezik Angleški jezik Članek v reviji 2026-01-26 12:10:10 2026-01-26 12:10:12 2026-01-28 03:05:10 0000-00-00 00:00:00 2026 0 0 str. 1-14 Vol. 50, article 102342 Apr. 2026 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 2026-01-26 630*83 2352-5541 10.1016/j.scp.2026.102342 266100227 RAZ_Selmanovic_Amina_2026.pdf RAZ_Selmanovic_Amina_2026.pdf 1 9DF7FF08A846176B42C14A652248222B c66ef4c586a2187dfc3a669c3a7fea71e9e51bf3ec1c343def783356565ee43a d38f72d1-faa7-11f0-b092-005056ac49c0 https://repozitorij.upr.si/Dokument.php?lang=slv&id=32796 https://www.sciencedirect.com/science/article/pii/S2352554126000343 1 99d13b72-faa7-11f0-b092-005056ac49c0 https://repozitorij.upr.si/Dokument.php?lang=slv&id=32795 Fakulteta za matematiko, naravoslovje in informacijske tehnologije 0 0 0