Degradation of phenolic and non-phenolic aromatic pollutants by four Pleurotus species: the role of laccase and versatile peroxidase

RODRIGUEZ, E

doi:10.1016/s0038-0717(04)00055-0

Cited by 34 publications

(45 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a result, higher removal efficiency was observed for most selected PhACs in the presence of redox mediators (ABTS or HBT) compared with those in the absence of mediators. The degradation tendency observed in this study is relatively consistent with those reported in the literature (Rodríguez et al, 2004;Tamagawa et al, 2005;Maruyama et al, 2006;Auriol et al, 2007;Canas et al, 2007;Casas et al, 2007), wherein they found that fungal laccase can oxidize a variety of organic compounds in the presence of a redox mediator, such as HBT or ABTS. However, the degradation spectrum in the presence of redox mediators was still mainly dependent on the characteristics of target compounds.…”

Section: Degradation Of Phacs In the Presence Of Mediatorssupporting

confidence: 91%

“…Laccase catalyzes the oxidation of a wide spectrum of organic compounds such as oand p-diphenols, aminophenols, polyphenols, polyamines, heterocyclic compounds, and some inorganic ions coupled with the reduction of molecular dioxygen to water (Solomon et al, 1996;Rodríguez et al, 2004;Morozova et al, 2007;Mizuno et al, 2009). To examine the degradation ability of ionic pharmaceuticals by laccase, a series of batch experiments were performed using commercial laccase with laccase activity of 6000 U/L, initial concentration of 10 µg/L for all selected PhACs, and 50 mM sodium acetate buffer (pH 4.5).…”

Section: Degradation Of Selected Phacs By Commercial Laccasementioning

confidence: 99%

“…These ligninolytic enzymes are relatively non-specific and use free radical mechanisms to catalyze the degradation of a wide spectrum of organic pollutants (Blánquez et al, 2004;Rodríguez et al, 2004;Cabana et al, 2007;Cajthaml et al, 2009;Wen et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

“…White-rot fungal laccase, a multi-copper oxidase, has been known to catalyze the oxidation of various organic compounds (Solomon et al, 1996;Rodríguez et al, 2004;Morozova et al, 2007;Mizuno et al, 2009). Especially, it has been found that laccase can be used as a novel biocatalyst for removing the organic micropollutants such as natural estrogens (estrone-E1; 17β-estradiol-E2; and estriol-E3) and a synthetic estrogen (17α-ethinylestradiol-EE2) from municipal wastewater (Auriol et al, 2007;Auriol et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biodegradation Characteristics of Pharmaceutical Substances by Whole Fungal Culture Trametes versicolor and its Laccase

Trần

Urase

Kusakabe

2010

J. of Wat. & Envir. Tech.

144

View full text Add to dashboard Cite

The degradation of 10 selected pharmaceutically active compounds (PhACs) by whole fungal culture Trametes versicolor, culture filtrates and commercial laccase preparation was conducted. Complete removal of diclofenac (DCF), naproxen (NPX), indomethacin (IDM), ibuprofen (IBP), and fenoprofen (FEP) and partial degradation of other selected PhACs were observed after 48 hours of incubation with the 7-day-old liquid fungal culture both in the presence and absence of ABTS (2,2'-azino-bis(3-ethyl-benzothiazoline-6-sulfonic acid)) as a laccase-mediator. The catalytic activity of laccase in the degradation of selected PhACs was examined for both crude and commercial extracellular laccase preparations. The results showed that laccase preferentially removed DCF, NPX and IDM among the target PhACs removed by the whole fungal culture. Intracellular enzymes may be involved in the degradation of ketoprofen (KEP), clofibric acid (CA), carbamazepine (CBZ), propyphenazone (PPZ), fenoprofen (FEP) and gemfibrozil (GFZ). The removal of most selected PhACs was increased with the increase in laccase activity. The presence of redox mediators such as ABTS and HBT (1-hyroxybenzotriazole) promoted the degradation of selected PhACs, in which complete removal of DCF, NPX and IDM was observed after 3 hours of incubation with laccase activity (2000 U/L) in the presence of ABTS/HBT. The degradation spectrum by laccase for ionic PhACs with nitrogen-containing structure was quite different from that of the activated sludge process.

show abstract

Section: Degradation Of Phacs In the Presence Of Mediatorssupporting

confidence: 91%

Section: Degradation Of Selected Phacs By Commercial Laccasementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biodegradation Characteristics of Pharmaceutical Substances by Whole Fungal Culture Trametes versicolor and its Laccase

Trần

Urase

Kusakabe

2010

J. of Wat. & Envir. Tech.

144

View full text Add to dashboard Cite

show abstract

“…During growth, this fungus selectively degrades lignin and produces various extracellular enzymes involved in ligninolysis: laccase, Mn 2+ -dependent peroxidase (MnP) and H 2 O 2 -producing oxidases, in addition to other Mn 2+ -independent peroxidases, such as one able to decolorize Remazol brilliant blue R (RBBR) and versatile peroxidase (7,11,22). Like other basidiomycetes, P. ostreatus is able to degrade a series of synthetic dyes, pentachlorophenol, and polycyclic aromatic hydrocarbons such as phenanthrene, anthracene and pyrene, among other pollutants (2,13,19).…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of remazol brilliant blue R by ligninolytic enzymatic complex produced by Pleurotus ostreatus

Machado¹,

Matheus²

2006

Braz. J. Microbiol.

View full text Add to dashboard Cite

Pleurotus ostreatus ("shimeji") is produced in Brazil on a commercial scale using various lignocellulosic residues. Efforts have been made to reuse the culture residue to obtain products of greater aggregate value such as enzymes or in processes of bioremediation. We evaluated the Remazol brilliant blue R (RBBR) degradation potential of extracts from solid substrate colonized by P. ostreatus and extracts from residue of the "shimeji" mushroom yield. Colonized substrates and residue were provided by Toyobo do Brasil Ltda. Extraction was performed with sodium acetate buffer (50 mM, pH 4.6). RBBR decolorization was monitored at 592 nm and peroxidase and laccase activities were measured by monitoring the oxidation of ABTS. Horseradish peroxidase was used as reference. The time of growth of P. ostreatus influenced RBBR degradation and peroxidase and laccase activities. Concentration of 1 mM H2O2 and pH 4.0 were the best for RBBR decolorization. Complete RBBR decolorization was obtained with the addition of only one aliquot of 50 µL of 1 mM H2O2. The stability of the extracts was higher when they were kept under refrigeration than when stored frozen. The potential application of the ligninolytic complex derived from P. ostreatus and mushroom residue for xenobiotic degradation was demonstrated.

show abstract

Understanding lignin biodegradation for the improved utilization of plant biomass in modern biorefineries

Camarero

Martı́nez

2014

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

Wood‐rotting fungi are the sole organisms in nature able to degrade the lignin polymer making the polysaccharide components of lignocellulose fully accessible. This process has been investigated for decades as a model for biotechnological application in the pulp and paper industry, animal feeding, and ethanol production. In the current lignocellulose biorefinery concept, ligninolytic fungi and the oxidoreductases (laccases and peroxidases) secreted by these fungi constitute powerful biotechnological tools for the complete utilization of plant biomass. The evolution of molecular biology, which brings into play specifically designed biological systems and on‐demand enzymes, together with the technological advances in processing of plant biomass, smoothes the way for a sustainable conversion of renewable feedstocks to new added‐value products, with lower energy costs and less environmental impact. The present study reviews some of the main achievements attained by our group in the field of lignin biodegradation that have contributed to: (i) better understanding of the mechanisms by which fungi delignify the lignocellulosic materials; and (ii) assessing the applicability of these ligninolytic systems to increase the efficiency of some industrial processes and to develop new means for sustainable and environmentally sound production of chemicals, materials, and fuels. © 2014 Society of Chemical Industry and John Wiley & Sons, Ltd

show abstract

Degradation of phenolic and non-phenolic aromatic pollutants by four Pleurotus species: the role of laccase and versatile peroxidase

Cited by 34 publications

References 0 publications

Biodegradation Characteristics of Pharmaceutical Substances by Whole Fungal Culture Trametes versicolor and its Laccase

Biodegradation Characteristics of Pharmaceutical Substances by Whole Fungal Culture Trametes versicolor and its Laccase

Biodegradation of remazol brilliant blue R by ligninolytic enzymatic complex produced by Pleurotus ostreatus

Understanding lignin biodegradation for the improved utilization of plant biomass in modern biorefineries

Contact Info

Product

Resources

About