scholarly journals Comparatively Investigation of Textile Dye Decolorization by a White Rot Fungus and Various Bacterial Strains

2021 ◽  
Author(s):  
Emre BİRHANLI ◽  
Özfer YEŞİLADA ◽  
Doç. Dr. Ahmet ÇABUK ◽  
Filiz BORAN ◽  
Eray TATLICI
Keyword(s):  
Dye Decolorization ◽  
White Rot ◽  
White Rot Fungus ◽  
Textile Dye ◽  
Bacterial Strains

An extracellular yellow laccase from white rot fungus Trametes sp. F1635 and its mediator systems for dye decolorization

Biochimie ◽  
2018 ◽  
Vol 148 ◽  
pp. 46-54 ◽  
Author(s):  
Shou-Nan Wang ◽  
Qing-Jun Chen ◽  
Meng-Juan Zhu ◽  
Fei-Yang Xue ◽  
Wei-Cong Li ◽  
...  
Keyword(s):  
Dye Decolorization ◽  
White Rot ◽  
White Rot Fungus ◽  
Mediator Systems ◽  
Yellow Laccase

scholarly journals Biostoning of textile effluent with laccase enzyme

2021 ◽  
Vol 56 (2) ◽  
pp. 115-124
Author(s):  
K Iqbal ◽  
A Nadeem ◽  
U Zafar
Keyword(s):  
Synthetic Medium ◽  
Dye Decolorization ◽  
White Rot ◽  
Textile Effluent ◽  
White Rot Fungus ◽  
Synthetic Dyes ◽  
Aquatic Life ◽  
Predicted Values ◽  
Laccase Enzyme ◽  
Experimental Values

The incessant release of textile effluent comprehending dyes and heavy metals which impacts on aquatic life. Current study used an enzyme to eradicate phenolic compounds and synthetic dyes from textile effluent by an indigenously isolated white rot fungus Pleurotus ostreatus- P1 has been cultured and indicated the utmost laccase activity with synthetic medium; as reacting substrate for dye decolorization. The textile effluent decolorization optimization has been conducted with different concentrations of laccase enzyme, temperature and pH. The 90% effluent decolorization was obtained by applying response surface methodology (RSM) conditions temperature, crude laccase enzyme and pH, 25˚C, 13.5 U/ml and 5 respectively. The predicted values were validated with experimental values, that confirms the steadiness of the model. Bangladesh J. Sci. Ind. Res.56(2), 115-124, 2021

scholarly journals Decolorization of Phenol Red Dye by Immobilized Laccase in Chitosan Beads Using Laccase - Mediator - System Model

2020 ◽  
Vol 17 (3) ◽  
pp. 0720
Author(s):  
Ali A. Taha ◽  
Nahida J. Hameed ◽  
Farah H. Rashid
Keyword(s):  
Dye Decolorization ◽  
White Rot ◽  
White Rot Fungus ◽  
Phenol Red ◽  
Chitosan Beads ◽  
Immobilized Laccase ◽  
Enzyme Recycling ◽  
Mediator System ◽  
Red Dye

This work describes the enhancement of phenol red decolorization through immobilizing of laccase in chitosan and enzyme recycling. Commercial laccase from white rot fungus, Trametesversicolor (Tvlac), was immobilizedin to freshly prepared chitosan beads by using glutaraldehyde as a cross linker. Characterization of prepared chitosan was confirmed by FTIR and scanning electron microscope (SEM). Tvlac (46.2 U/mL) immobilized into chitosan beads at 0.8 % glutaraldehyde (v/v) within 24 hrs. Synthetic (HBT) and natural (vanillin) mediators were used to enhance dye decolorizoation. It was found that 89 % of phenol red was decolorized by chitosan beads within 180 min. in the absence of enzyme and mediator, while decolorization percentage of the dye was completed (100%) at 120 min. when chitosan immobilizedlaccase was applied. Moreover, the decolorization was completed within 25 and 50 min. in the presence of chitosan immobilized laccase and of HBT or vanillin respectively. On the other hand, the recycling of chitosan immobilized laccase was still decolorize phenol red and continued up to ninth cycle to reach  70% of dye decolorization .

scholarly journals Enhanced Reactive Blue 4 Biodegradation Performance of Newly Isolated white rot fungus Antrodia P5 by the Synergistic Effect of Herbal Extraction Residue

2021 ◽  
Vol 12 ◽  
Author(s):  
Tianjie Yuan ◽  
Shuyi Zhang ◽  
Yifei Chen ◽  
Ran Zhang ◽  
Letian Chen ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lignin Peroxidase ◽  
Dye Decolorization ◽  
White Rot ◽  
White Rot Fungus ◽  
Fungal Treatment ◽  
Maximum Increase ◽  
Anthraquinone Dye ◽  
Wide Range ◽  
Reactive Blue 4

In this study, a white rot fungus Antrodia was newly isolated and named P5. Then its dye biodegradation ability was investigated. Our results showed that P5 could effectively degrade 1,000 mg/L Reactive Blue 4 (RB4) in 24 h with 95% decolorization under shaking conditions. It could tolerate a high dye concentration of 2,500 mg/L as well as 10% salt concentration and a wide range of pH values (4–9). Herbal extraction residues (HER) were screened as additional medium elements for P5 biodegradation. Following the addition of Fructus Gardeniae (FG) extraction residue, the biodegradation performance of P5 was significantly enhanced, achieving 92% decolorization in 12 h. Transcriptome analysis showed that the expression of multiple peroxidase genes was simultaneously increased: Lignin Peroxidase, Manganese Peroxidase, Laccase, and Dye Decolorization Peroxidase. The maximum increase in Lignin Peroxidase reached 10.22-fold in the presence of FG. The results of UV scanning and LC-HRMS showed that with the synergistic effect of FG, P5 could remarkably accelerate the biodegradation process of RB4 intermediates. Moreover, the fungal treatment with FG also promoted the abatement of RB4 toxicity. In sum, white rot fungus and herbal extraction residue were combined and used in the treatment of anthraquinone dye. This could be applied in practical contexts to realize an efficient and eco-friendly strategy for industrial dye wastewater treatment.

scholarly journals New Bioactive Fungal Molecules with High Antioxidant and Antimicrobial Capacity Isolated fromCerrena unicolorIdiophasic Cultures

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Magdalena Jaszek ◽  
Monika Osińska-Jaroszuk ◽  
Grzegorz Janusz ◽  
Anna Matuszewska ◽  
Dawid Stefaniuk ◽  
...  
Keyword(s):  
Vibrio Fischeri ◽  
Antioxidant Properties ◽  
Reduction Rate ◽  
Inhibitory Effect ◽  
White Rot ◽  
White Rot Fungus ◽  
Toxicity Tests ◽  
Bacterial Strains ◽  
Scavenging Effect ◽  
Extracellular Laccase

Three bioactive fractions, extracellular laccase (ex-LAC), crude endopolysaccharides (c-EPL), and a low molecular subfraction of secondary metabolites (ex-LMS), were isolated from the idiophasic cultures of the white rot fungusCerrena unicolor. For the first time, we determined the antioxidant properties of these samples by chemiluminometric measurement (a) and assessment of the scavenging effect on ABTS (b) and the DPPH reduction rate (c). The highest reducing capability was found for the ex-LMS fraction: 39–90% for (a), 20–90% for (b), and 10–59% for (c) at the concentration of 6.25–800 µg/mL. The scavenging abilities of theC. unicolorc-EPL were between 36 and 70% for (a), 2 and 60% for (b), and 28 and 32% for (c) at the concentration of 6.25–800 µg/mL. A very high prooxidative potential was observed for the ex-LAC probes. The preliminary toxicity tests were done using the Microtox system and revealed the following percentage of the toxic effect againstVibrio fischeri: 85.37% for c-EPL, 50.67% for ex-LAC, and 99.8% for ex-LMS, respectively. The ex-LAC sample showed the antibacterial activity againstEscherichia coli, c-EPL againstStaphylococcus aureus, and ex-LMS against both bacterial strains, respectively, but the stronger inhibitory effect was exerted onS. aureus.

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