Fungal Bioremediation of Creosote-Treated Wood: A Laboratory Scale Study on Creosote Components Degradation by Pleurotus ostreatus Mycelium

Polcaro, C.; Brancaleoni, E.; Donati, Enrica; Frattoni, Massimiliano; Galli, E.; Rapanà, P.

doi:10.1007/s00128-008-9394-9

Cited by 16 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To date these results on OTC cannot be compared with other experimental data, although P. ostreatus is known to absorb and degrade recalcitrant compounds [18,22]. In a study devoted to fluoranthene degradation, as a first step the compound was completely absorbed by the P. ostreatus mycelium (15 d) and then degraded to 50% of the spiked amount in 40 d [23].…”

Section: Discussionmentioning

confidence: 99%

Biodegradation of oxytetracycline by Pleurotus ostreatus mycelium: a mycoremediation technique

Migliore

Fiori

Spadoni

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

a b s t r a c tOxytetracycline (OTC) is administered in high doses to livestocks and enters the environmental compartments as a consequence of animal waste disposal. As a first step in setting up a useful mycoremediation technique, an OTC lab degradation test was performed in liquid medium using the ligninolytic fungus Pleurotus ostreatus. OTC disappearance in culture medium was clearly evident as early as the third day of exposure onwards, with an almost complete removal after 14 d. The drug removal was mediated by fungal absorption in the mycelia, where the OTC molecule underwent a degradation step, as demonstrated by mass spectrometry analyses. A putative degradation product, ADOTC (2-acetyl-2-decarboxamidooxytetracycline) is proposed. Experimental conditions excluded OTC abiotic degradation; the degradation by extracellular laccase was also experimentally discarded.

show abstract

Section: Discussionmentioning

confidence: 99%

Biodegradation of oxytetracycline by Pleurotus ostreatus mycelium: a mycoremediation technique

Migliore

Fiori

Spadoni

et al. 2012

Journal of Hazardous Materials

View full text Add to dashboard Cite

show abstract

“…The extracellular enzymes involve an ensemble of both oxidative enzymes and hydrolytic enzymes . Cellulose and hemicellulose are degraded by hydrolytic enzymes whereas lignin is degraded by oxidative enzymes . In addition, a variety of other accessory enzymes including heme peroxidases, dye‐decolorizing peroxidases, aryl‐alcohol oxidases were found participated in the lignocelluloses‐degrading process .…”

Section: Introductionmentioning

confidence: 99%

Secretome analysis of Pleurotus eryngii reveals enzymatic composition for ramie stalk degradation

Xie

Luo

et al. 2015

Electrophoresis

View full text Add to dashboard Cite

Pleurotus eryngii (P. eryngii) can secrete large amount of hydrolytic and oxidative enzymes to degrade lignocellulosic biomass. In spite of several researches on the individual lignolytic enzymes, a direct deconstruction of lignocellulose by enzyme mixture is not yet possible. Identifying more high-performance enzymes or enzyme complexes will lead to efficient in vitro lignocelluloses degradation. In this report, secretomic analysis was used to search for the new or interesting enzymes for lignocellulose degradation. Besides, the utilization ability of P. eryngii to ramie stalk substrate was evaluated from the degradation of cellulose, hemicellulose, and lignin in medium and six extracellular enzymes activities during different growth stages were discussed. The results showed that a high biological efficiency of 71% was obtained; cellulose, hemicelluloses, and lignin decomposition rates of P. eryngii were 29.2, 26.0, and 51.2%, respectively. Enzyme activity showed that carboxymethyl cellulase, xylanase, laccase, and peroxidase activity peaks appeared at the primordial initiation stage. In addition, we profiled a global view of the secretome of P. eryngii cultivated in ramie stalk media to understand the mechanism behind lignocellulosic biomass hydrolysis. Eighty-seven nonredundant proteins were identified and a diverse group of enzymes, including cellulases, hemicellulases, pectinase, ligninase, protease, peptidases, and phosphatase implicated in lignocellulose degradation were found. In conclusion, the information in this report will be helpful to better understand the lignocelluloses degradation mechanisms of P. eryngii.

show abstract

“…(strain E0330) [38], ascomycetous fungus Thermoascus aurantiacus [43]. White-rot fungal species could be interesting for the treatment of wood waste because of their ability to degrade phenols and PAH and to grow on ligninocellulosic materials [39][40][41].…”

Section: Degradation Of Creosote By Fungimentioning

confidence: 99%

Review of Creosote Pollution Toxicity and Possibilities of Bioremediation

Vilnius

Gailiūtė

Aikaitė-Stanaitienė

et al. 2015

ETR

View full text Add to dashboard Cite

Creosote oil is a complex mixture of hydrocarbon compounds obtained from high temperature distillation of coal tar. It is used for over 100 years as a fungicide, insecticide, miticide, and sporicide to protect wood and is applied by pressure methods to wood products, primary utility poles and railroad ties. This treated wood is intended for exterior or outdoor uses only. Its commercial uses include railroad ties 70%, utility poles 15-20%, and other miscellaneous commercial uses 10-15%. Composition of the creosote depends on the source and it has typically 85% polycyclic aromatic hydrocarbons (PAHs), 10% phenolic compounds, and 5% heterocyclic. Between 20 and 40% of the total weight of typical creosote can be attributed to the 16 PAHs defined as priority pollutants by the United States Environmental Protection Agency (EPA). The production of creosote in the European Union (EU) has been estimated to be approximately 60.000-100.000 t per year. The presence of the toxic PAHs and phenolic compounds make creosote treated wood harmful for the environment at the end of its service life and direct or indirect human exposure to creosote treated wood may cause carcinogenic affect to kidney, liver, bladder, eyes and skin. In this presentation we review creosote environmental pollution toxicity and possibilities of remediation.

show abstract

Fungal Bioremediation of Creosote-Treated Wood: A Laboratory Scale Study on Creosote Components Degradation by Pleurotus ostreatus Mycelium

Cited by 16 publications

References 11 publications

Biodegradation of oxytetracycline by Pleurotus ostreatus mycelium: a mycoremediation technique

Biodegradation of oxytetracycline by Pleurotus ostreatus mycelium: a mycoremediation technique

Secretome analysis of Pleurotus eryngii reveals enzymatic composition for ramie stalk degradation

Review of Creosote Pollution Toxicity and Possibilities of Bioremediation

Contact Info

Product

Resources

About