Browsing by Author "Andrade Salamanca, Sofia"
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Item Evaluación de procesos fotoquímicos de oxidación avanzada aplicados a la inactivación y/o reactivación de una cepa de Aspergillus fumigatus(Universidad Santiago de Cali, 2025-12-04) Andrade Salamanca, Sofia; Castaño Mosquera, Laura Marcela; Caicedo Bejarano, Luz Dary (Directora); Castro Narváez, Sandra Patricia (Directora)Aspergillus fumigatus, classified by the WHO as a top-priority fungal pathogen, poses an increasing threat to public health due to its resistance to conventional treatments. This study evaluated the effectiveness of advanced oxidation processes (AOPs) utilizing UV-C radiation in combination with H₂O₂, PMS, and PDS for inactivating and potentially reactivating A. fumigatus isolated from wastewater in darkness. All combined treatments achieved significant inactivation within the first 3 minutes, resulting in 3–4 log reductions (approximately 99.8% removal of CFU mL⁻¹). Statistical analysis revealed that treatments combining oxidizing agents and radiation yielded significantly different results compared to controls (p < 0.05), indicating a synergistic effect in generating reactive species responsible for fungal inactivation. Additionally, after 60 minutes, no reactivation occurred, indicating an irreversible loss of viability and confirming the process's stability as an effective alternative.