Crescimento de D. Castanella em meio BDA adicionado de diferentes concentrações de águas residuárias da produção e café solúvel (ARCS)

Abstract

The production of instant coffee generates wastewater (ARCS) with a high load of organic matter and toxic compounds. Since the basidiomycete fungus Deconica castanella is recognized for its potential application in bioremediation, the ability of D. castanella to grow on solid medium containing ARCS was evaluated. D. castanella was maintained on PDA medium. PDA medium prepared in ARCS at different dilutions (0, 10%, 50% and 100%) were sterilized, inoculated and incubated at 28°C. Radial mycelial growth was measured every 24h, using a millimeter ruler. The greatest radial growth was observed on PDA medium without ARCS. Increasing the concentration of ARCS decreased the growth rate and increased the mycelial density of D. castanella. These results demonstrate the adaptability of D. castanella to grow in the presence of ARCS.