Bioremediation potential of basidiomycetes isolated from compost
The potential of a consortium of three basidiomycete mycelia isolated from compost to degrade polycyclic aromatic hydrocarbons (PAH) was first evaluated using a test based on decolorization of Poly R-478 dye. When pre-grown on straw, the consortium decolorized the dye by 83% in 7 days and generated...
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Veröffentlicht in: | Bioresource technology 2008-09, Vol.99 (14), p.6626-6630 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The potential of a consortium of three basidiomycete mycelia isolated from compost to degrade polycyclic aromatic hydrocarbons (PAH) was first evaluated using a test based on decolorization of Poly R-478 dye. When pre-grown on straw, the consortium decolorized the dye by 83% in 7 days and generated a laccase activity of 663
IU
l
−1. Its ability to degrade naphthalene was investigated in soil microcosms specially suited for this volatile PAH. The kinetic study was conducted at a maximal naphthalene concentration of 500
mg
kg
−1 of soil. Naphthalene concentration, CO
2 evolution and phytotoxicity (germination index, GI%) on
Lepidium sativum seeds were monitored. The naphthalene concentration decreased by about 70% in three weeks in the presence of metabolic activity, while the GI% increased indicating reduced phytotoxicity. |
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ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2007.12.036 |