Characterization of the mechanisms for coal solubilization by filamentous fungi

摘要

The mechanisms implicated on coal solubilizalion have been studied in this work. Two fungal strains (Trichoderma and Penicillium) had been isolated which were able to solubilize different kinds of Spanish coals (hard coal, subbituminous coal and lignite) when growing in liquid media in the presence of coal. Extracellular peroxidase, esterase and some times phenol oxidase enzymes were present in the culture supernatant when a high degree of coal solubilization was attained. Those enzymes could be involved in the coal attack.