Polycyclic aromatic hydrocarbon biodegradation in extracellular fluids and static batch cultures of selected sub-tropical white rot fungi

Tekere, Memory; Read, John S.; Mattìasson, Bo

doi:10.1016/j.jbiotec.2004.09.012

Cited by 38 publications

(25 citation statements)

References 20 publications

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“…However, many active white rot fungi species remain in natural cycles, and several of these possess ligninolytic capability with an unidentified potential for bioremediation (Tekere et al, 2005). Little is known about the PAH biodegradation potential of the Trametes species.…”

mentioning

confidence: 99%

Biodegradation of polycyclic aromatic hydrocarbons by a thermotolerant white rot fungus <i>Trametes polyzona</i> RYNF13

Teerapatsakul

Pothiratana

Chitradon

et al. 2016

J. Gen. Appl. Microbiol.

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mentioning

confidence: 99%

Biodegradation of polycyclic aromatic hydrocarbons by a thermotolerant white rot fungus <i>Trametes polyzona</i> RYNF13

Teerapatsakul

Pothiratana

Chitradon

et al. 2016

J. Gen. Appl. Microbiol.

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“…Apart from P. chrysosporium, the fungal isolates were selected from the indigenous Zimbabwean isolates on the basis of high ligninolytic and high dye decolourisation activities from preliminary screening. Mineral medium as in Tekere et al [8], was used for culturing the fungi and a mixture of the PAHs at a concentration of 20 mgl -1 for each of the PAHs in a 1 ml acetone stock solution was used in 50 ml of the medium in 500 ml shake flasks. The degradation experiments were carried out as described in Tekere et al [8].…”

Section: Polycyclic Aromatic Hydrocarbon Biodegradationmentioning

confidence: 99%

“…Mineral medium as in Tekere et al [8], was used for culturing the fungi and a mixture of the PAHs at a concentration of 20 mgl -1 for each of the PAHs in a 1 ml acetone stock solution was used in 50 ml of the medium in 500 ml shake flasks. The degradation experiments were carried out as described in Tekere et al [8]. The influence of the addition of glucose oxidase and additional glucose on the biodegradation of the more recalcitrant pyrene and benzo(a)anthracene and the lower molecular weight anthracene was also studied.…”

Section: Polycyclic Aromatic Hydrocarbon Biodegradationmentioning

confidence: 99%

“…Glucose oxidase, type V-S from Aspergillus niger, (Sigma Chemical Co) and additional glucose, 5gl -1 were added to cultures after 14 days of incubation. Sampling and PAH extractions and analysis were done as described in Tekere et al [8]. Effects of addition of glucose oxidase and additional glucose were determined as the hydrogen peroxide -dependant oxidation of phenol red (Tekere et al [8]).…”

Section: Polycyclic Aromatic Hydrocarbon Biodegradationmentioning

confidence: 99%

“…Culture supernatants from 3 week old batch cultures were aseptically separated from the mycelia, centrifuged at 6500 rpm, filtered through 0,2 µm sterile syringe filters and used for the biodegradation experiments (Tekere et al [8]). The biodegradations were carried out in triplicate for 6 days for each isolate, of each of the PAHs were used.…”

Section: Pah Biodegradation By Fungal Extracellular Supernatantsmentioning

confidence: 99%

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An evaluation of organopollutant biodegradation by some selected white rot fungi: an overview

Tekere¹,

Read

Mattìasson

2010

WIT Transactions on Ecology and the Environment

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An evaluation of indigenous subtropical white rot fungi producing the ligninolytic enzymes laccase and manganese peroxidase only showed that the fungi could degrade synthetic dyes, PAHs and organochlorine pesticides. Biodegradation of the polymeric dye Poly 478 saved as a good screening indicator for organopollutant degradation by the fungi and based on Poly R478, the indigenous fungi; Trametes versicolor, Trametes cingulata, Trametes pocas and unidentified strain DSPM95 were selected as high degraders from 11 screened fungi. PAH biodegradation was evaluated both in batch and continuous culture bioreactors. The degradation of PAHs at an initial concentration of 20 ppm each in static batch cultures over 31 days showed that + 60% fluorene, +40% phenanthrene, +42% anthracene and 3-11% of benzo(a)anthracene and pyrene were degraded. Biodegradation experiments using extra-cellular culture fluid demonstrated that the extracellular enzyme system of the fungi was responsible also for the biodegradation of the PAHs. Studies on PAH biodegradation by the isolate DSPM95 in packed and suspended carrier continuous bioreactors also showed that the fungi could degrade most of the PAH fed continuously at a concentration of 1 ppm over a period of at least 31 days.

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Glucose oxidase effect on treatment of textile effluent containing reactive azo dyes byPhanerochaete chrysosporium

Ansari

Karimi

Sedghi

et al. 2017

J. Chem. Technol. Biotechnol

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BACKGROUND Chemically different types of dyes have been proven to be degraded by peroxidases of Phanerochaete chrysosporium. Hydrogen peroxide is required as a co‐substrate for peroxidases during the oxidation process. RESULTS Investigating the effect of glucose oxidase (GOx) (EC 1.1.3.4) on treatment of textile effluent containing recalcitrant diazo and azo dyes by P. chrysosporium was the main aim of this research. The effects of glucose, GOx and Mn2+ on chemical oxygen demand (COD), decolorization and manganese peroxidase (MnP) activity were evaluated in repeated batch operations. At the end of the fifth batch, the decolorization efficiency increased 4.18‐fold compared with reference batches (i.e. no additive received batches). An increase in MnP activity and COD removal percentage by 4.5‐ and 5‐fold, respectively, were observed when introducing GOx+glucose. CONCLUSION In vivo addition of GOx+glucose could increase the decolorization efficiency of real sample effluent not only by providing H2O2 for catalytic activity of peroxidases but also by providing gluconic acid, favoring the pH of the medium and increasing peroxidase activity as well. Also, these findings may be useful for discerning the role of manganese ions and oxidases of fungi as well as their interaction in the decolorization process. © 2016 Society of Chemical Industry

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Polycyclic aromatic hydrocarbon biodegradation in extracellular fluids and static batch cultures of selected sub-tropical white rot fungi

Cited by 38 publications

References 20 publications

Biodegradation of polycyclic aromatic hydrocarbons by a thermotolerant white rot fungus <i>Trametes polyzona</i> RYNF13

Biodegradation of polycyclic aromatic hydrocarbons by a thermotolerant white rot fungus <i>Trametes polyzona</i> RYNF13

An evaluation of organopollutant biodegradation by some selected white rot fungi: an overview

Glucose oxidase effect on treatment of textile effluent containing reactive azo dyes byPhanerochaete chrysosporium

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