Enhanced removal of PAHs by Peniophora incarnata and ascertainment of its novel ligninolytic enzyme genes

Lee, Hwanhwi; Jang, Yeongseon; Lee, Young Min; Lee, Hanbyul; Kim, Gyu Hyeok; Kim, Jae Jin

doi:10.1016/j.jenvman.2015.08.036

Cited by 32 publications

(14 citation statements)

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“…A number of P . incarnate strains with strong ligninolytic activities have been studied for ligninolytic enzymes production and aromatics degradation, suggesting their great potential application on biomass pretreatment [ 19 – 21 ]. However, the employment of this species strains for biomass pretreatment was rarely reported.…”

Section: Resultsmentioning

confidence: 99%

“…Peniophora species strain belongs to white-rot basidiomycete has been found with impressive capacity to produce ligninolytic enzymes. For example, a strain of Peniophora incarnate KUC8836 has been reported with strong capacity to degrade polycyclic aromatic hydrocarbons, which ascribed to its high activities of laccase and manganese peroxidase [ 19 ]. Meanwhile, a new manganese peroxidase gene from P .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the employment of P . incarnate KUC8836 on aromatics degradation showed satisfactory effects within two weeks treatment [ 19 , 21 , 22 ]. These suggested that Peniophora species strain might be a promising candidate for woody biomass pretreatment.…”

Section: Introductionmentioning

confidence: 99%

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Selective delignification of poplar wood with a newly isolated white-rot basidiomycete Peniophora incarnata T-7 by submerged fermentation to enhance saccharification

Yue

et al. 2021

Biotechnol Biofuels

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Background Pretreatment is a critical step required for efficient conversion of woody biomass into biofuels and platform chemicals. Fungal pretreatment is regarded as one of the most promising technology for woody biomass conversion but remains challenging for industrial application. The exploration of potential fungus strain with high efficient delignification and less processing time for woody biomass pretreatment will be valuable for development of biorefinery industry. Here, a newly isolated white-rot basidiomycete Peniophora incarnate T-7 was employed for poplar wood pretreatment. Results The chemical component analysis showed that cellulose, hemicellulose and lignin from poplar wood declined by 16%, 48% and 70%, respectively, after 7 days submerged fermentation by P. incarnate T-7. Enzymatic saccharification analysis revealed that the maximum yields of glucose and xylose from 7 days of P. incarnate T-7 treated poplar wood reached 33.4% and 27.6%, respectively, both of which were enhanced by sevenfold relative to the untreated group. Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD) and pyrolysis gas chromatography–mass spectrometry (Py-GC/MS) characterization confirmed that lignocellulosic structure of poplar wood was largely broken by P. incarnate T-7, including delignification and de-crystalline of cellulose. Meanwhile, lignin component of poplar wood was selectively degraded by P. incarnate T-7, and G-type unit of lignin was preferentially attacked by the strain. Furthermore, quantitative proteomic analysis revealed that a considerable amount of lignocellulolytic enzymes were detected in the secretory proteins of P. incarnate T-7, especially with high abundance of lignin-degrading enzymes and hemicellulases. Combination of quantitative proteomic with transcriptomic analysis results showed that most of those lignocellulolytic enzymes were highly upregulated on poplar wood substrate compared to glucose substrate. Conclusions This study showed that P. incarnate T-7 could selectively delignify poplar wood by submerged fermentation with short time of 7 days, which greatly improved its enzymatic saccharification efficiency. Our results suggested that P. incarnate T-7 might be a promising candidate for industrial woody biomass pretreatment.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Selective delignification of poplar wood with a newly isolated white-rot basidiomycete Peniophora incarnata T-7 by submerged fermentation to enhance saccharification

Yue

et al. 2021

Biotechnol Biofuels

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“…Together, evidences based mainly on Phanerochaete chrysosporium metabolism suggested that nitrogen starvation was a premise for ligninolytic enzyme production [ 45 ]. This proved to be true in experiments dealing with pollutants like polycyclic aromatic hydrocarbons (PAHs) [ 46 ] and dyes [ 47 ]. However, there is still no consensus on such pattern.…”

Section: Resultsmentioning

confidence: 99%

Degradation of the Organochlorinated Herbicide Diuron by Rainforest Basidiomycetes

Henn

Arakaki

Monteiro

et al. 2020

BioMed Research International

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The main organochlorinated compounds used on agricultural crops are often recalcitrant, affecting nontarget organisms and contaminating rivers or groundwater. Diuron (N-(3,4-dichlorophenyl)-N ′ ,N ′ -dimethylurea) is a chlorinated herbicide widely used in sugarcane plantations. Here, we evaluated the ability of 13 basidiomycete strains of growing in a contaminated culture medium and degrading the xenobiotic. Dissipation rates in culture medium with initial 25 mg/L of diuron ranged from 7.3 to 96.8%, being Pluteus cubensis SXS 320 the most efficient strain, leaving no detectable residues after diuron metabolism. Pycnoporus sanguineus MCA 16 removed 56% of diuron after 40 days of cultivation, producing three metabolites more polar than parental herbicide, two of them identified as being DCPU and DCPMU. Despite of the strong inductive effect of diuron upon laccase synthesis and secretion, the application of crude enzymatic extracts of P. sanguineus did not catalyzed the breakdown of the herbicide in vitro, indicating that diuron biodegradation was not related to this oxidative enzyme.

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“…Numerous sites are contaminated by both PAHs and heavy metals, including e-wasting processing sites (Luo et al, 2011), manufactured gas plant sites (Thavamani et al, 2012), and river sediments (Feng et al, 2012), which require simultaneous remediation of PAHs and heavy metals. However, most recent studies have focused on the decontamination of PAHs (Chen et al, 2015;Lee et al, 2015) or heavy metals Sargın et al, 2015) individually. Recently, more attention has been directed to the simultaneous removal of both heavy metals and organic contaminants from aquatic systems (Hung et al, 2016;Lalhmunsiama and Lee, 2016;Liu et al, 2016;Ma et al, 2016a;Ma et al, 2016b;Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of PAHs and metal contaminants from water using magnetic nanoparticle adsorbents

Huang

Fulton

Keller

2016

Science of The Total Environment

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• Fast magnetic nanosorbents for simultaneous removal of PAHs and metals • Stable remediation performance across wide pH range (4-9) • High water hardness resistance across wide range of Ca 2 + or Mg 2 + concentration • Low energy use for regeneration of adsorbent and able to reuse multiple times Many industrial wastewaters are contaminated with both heavy metal ions and organic compounds, posing a major threat to public health and the environment. In this study, magnetic nanoparticle adsorbents, namely Mag-PCMA-T, which contain a maghemite core and a silica mesoporous layer that permanently confines surfactant micelles within the mesopores, were synthesized to achieve simultaneous removal of polycyclic aromatic hydrocarbons (PAHs) (1 mg/L) and metal contaminants (1 mg/L). The individual removal efficiency of Cd 2+ and acenaphthene using Mag-PCMA-T was evaluated under a range of initial ion concentrations and adsorbent dosages, as well as the competitive adsorption with Cd 2+ and acenaphthene simultaneously present. The isotherms and kinetics of Cd 2+ and acenaphthene sorption onto Mag-PCMA-T were determined. Mag-PCMA-T removed N85% of the acenaphthene in b30 min, with relatively high sorption capacity (up to 1060 mg/kg). Mag-PCMA-T also exhibited high sorption capacity for Cd 2+ (up to 2250 mg/kg). The simultaneous sorption performance was stable across a wide pH range (4-9) as well as in the presence of competitive metal ions (Ca 2+ and Mg 2+ ) or natural organic matters. The Mag-PCMA-T can be regenerated and reused, providing a sustainable, fast, convenient, and efficient approach for water treatment. b s t r a c t a r t i c l e i n f o© 2016 Published by Elsevier B.V. Contents lists available at ScienceDirectScience of the Total Environment

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Enhanced removal of PAHs by Peniophora incarnata and ascertainment of its novel ligninolytic enzyme genes

Cited by 32 publications

References 29 publications

Selective delignification of poplar wood with a newly isolated white-rot basidiomycete Peniophora incarnata T-7 by submerged fermentation to enhance saccharification

Selective delignification of poplar wood with a newly isolated white-rot basidiomycete Peniophora incarnata T-7 by submerged fermentation to enhance saccharification

Degradation of the Organochlorinated Herbicide Diuron by Rainforest Basidiomycetes

Simultaneous removal of PAHs and metal contaminants from water using magnetic nanoparticle adsorbents

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