Biodegradation of pentachorophenol by tropical basidiomycetes in soils contaminated with industrial residues

Physiological Characterization of Fungal Inoculum for Biotechnological Remediation of Soils

“…Considering this, the young inocula studied here showed degradation above 90% after a much shorter time (5 days cultivation), without pellet possibly favoring degradation in a field scale. The abiotic losses were comparable to those observed in the present study (Lamar and Dietrich 1992;Lamar et al 1994;Matheus et al 2000;Machado et al 2005b). Table 1 showed 11 criteria assessed in the present study that could help selecting the best condition for the cultivation of L. crinitus for its use in the bioremediation of soils contaminated with pentachlorophenol.…”

“…Lamar and Dietrich (1990) reported up to 91% pentachlorophenol decrease after using Phanerochaete chrysosporium at concentrations between 250 and 400 mg kg -1 along 6.5 weeks. In a study with L. crinitus CCIBt2611, Machado et al (2005b) observed the capacity of such basidiomycete in degrading pentachlorophenol at much higher concentrations (around 1,400 mg kg -1 soil), showing the elevated resistance, associated with the rapidity of the fungus to the tested pollutant. Dzul-Puc et al (2005), in a study with P. chrysosporium in sugarcane husk and pine seraglio estimated the influence of physiological age and substrate on benzo(α)pyrene degradation, concluding that the removal of the contaminant was most efficient when the inoculum age was 5-days, which was similar for L. crinitus in this work.…”

Influence of pH on the growth, laccase activity and RBBR decolorization by tropical basidiomycetes

“…A series of studies have been conducted with the objective to reduce the level of pollution of organochlorine contaminated soils by the application of Brazillian basidiomycete fungi (Matheus et al, 2000(Matheus et al, , 2001Machado et al, 2005). The metabolism of polluting compounds by basidiomycetes seems to be the consequence of the mechanism used by these organisms to degrade the lignin.…”

Optimization of Culture Condition for Enhanced Decolorization of Direct blue Dye by Aspergillus flavus and Penicillium canescens

“…Ali et al (2010) Also found that decolorization rate by brown-rot fungi for azo dyes was generally high at 96 h. Moreover, it kept on declining with passing time in agitated fungal cultures. Machado et al (2006) also reported this decreasing trend in decolorization with time, and explained that this phenomenon might be due to accumulation of dyes products that might have hindered growth and metabolizing potential of fungi.…”

“…Triplicate sets of plates were used for each fungal species. The decolorization zone and colony diameter were measured (Machado et al, 2005).…”