Potencial tolerante y de biodegradación del hongo de podredumbre blanca sobre llantas usadas

The present study evaluated the biodegradation potential of rubber of used tires by enzymatic action of a white rot fungus. Initially, the effect of the enzymatic action of the fungus on the mechanical, structural and chemical properties of the rubber was evaluated. Different sterilized cuts of 1 cm2 rims were inoculated on the rubber surface. After 45 days, changes in stress, surface changes from scanning electron microscopy (SEM) and changes in chemical structure were evaluated by Fourier transform infrared spectroscopy (FTIR), these analyzes showed the presence of erosion in the material by attacking its molecular bonds. Subsequently, the potential of the rim was determined to produce fungi biomass. For this, 6 concentrations of rim powder (2.5, 5, 7.5, 10, 12.5 mg / L) were studied and inoculated with mycelia of the fungus in Sabouraud agar. After 21 days, the germinated biomass at each substrate concentration was gravimetrically analyzed and modeled. As results, a proportional dependence of the growth of the biomass as a function of the substrate concentration was found. Finally, it is concluded that the white rot fungus has the potential to degrade the rubber of the used tires. Therefore, it may be a viable option to help biodegradation of used tires

• Autores: Ramírez Cuadro, Néstor Eduardo; Teherán Romero, Jefferson Arturo
• Fecha de publicación: 2017
• Institución: Universidad de San Buenaventura
• Repositorio: Repositorio USB
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.usb.edu.co:10819/4531
• Acceso en línea: http://hdl.handle.net/10819/4531
• Palabra clave: Biodegradación; Bioremediación; Potencial; Tolerancia; Llantas usadas; Biodegradation; Potential; Bioremediation; Tolerance; Used tires; Tesis - ingeniería química; Biodegradación de hongos; Llantas de caucho; Biodegradación de caucho; Bioremediación
• License: Atribución-NoComercial-SinDerivadas 2.5 Colombia