Naproxen degradation test to monitor Trametes versicolor activity in solid-state bioremediation processes
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Fecha
2010-07-15
Tipo
artículo original
Autores
Rodríguez Rodríguez, Carlos E.
Marco Urrea, Ernest
Caminal, Glòria
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Resumen
The white-rot fungus Trametes versicolor has been studied as a potential agent for the removal of envi ronmental pollutants. For long-time solid-phase bioremediation systems a test is required to monitor the
metabolic status of T. versicolor and its degradation capability at different stages. A biodegradation test
based on the percentage of degradation of a spiked model pharmaceutical (anti-inflammatory naproxen)
in 24 h (ND24) is proposed to monitor the removal of pharmaceuticals and personal care products in
sewage sludge. ND24 is intended to act as a test complementary to ergosterol quantification as specific
fungal biomarker, and laccase activity as extracellular oxidative capacity of T. versicolor. For samples col lected over 45 d, ND24 values did not necessarily correlate with ergosterol or laccase amounts but in most
cases, they were over 30% degradation, indicating that T. versicolor may be suitable for bioremediation of
sewage sludge in the studied period.
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Palabras clave
Trametes versicolor, Biodegradation test, Bioremediation, Naproxen, Sewage sludge