Enhancing catalytic functionality of Trametes versicolor IBL-04 laccase by immobilization on chitosan microspheres

Asgher, Muhammad; Noreen, Sadia; Bilal, Muhammad

doi:10.1016/j.cherd.2016.12.011

Cited by 91 publications

(41 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Enzyme activity reduces or deactivates at temperatures below 10 °C and above 60 °C (Fabbrini et al, 2002;Liu, 2006). In the study of Asgher et al (2017), the highest activity of free laccase enzyme was observed at 45 ˚C. The effect of temperature changes on the efficacy of laccase enzyme in CEX oxidation was performed at 30, 45 and 60°C.…”

Section: The Effect Of Temperaturementioning

confidence: 99%

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Shokoohi

Samadi

Amani

et al. 2018

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

Antibiotics are used globally and, after use, they enter water sources in different ways. The presence of these compounds in the environment has created concerns about the toxicity of aquatic organisms and the emergence of antibiotic-resistant bacteria. The purpose of this study was to remove cefalexin from aqueous solutions by enzymatic oxidation using response surface methodology (RSM). For this purpose, batch experiments were performed to evaluate the effect of independent variables, including temperature, pH, contact time, enzyme activity, HBT mediator concentration, and antibiotic concentration. The residual cefalexin concentration was determined by HPLC. The Box-Behnken design of experiments and RSM were used to evaluate the overlap between variables. The results showed that the oxidation efficiency increased with increasing contact time and enzyme activity and decreasing antibiotic concentration. The highest and lowest removal percentages were 90.5% and 5.54%, respectively. Considering the value of R 2 (0.946) and adjusted R 2 (0.95) in the RSM model, one can state that the selected model is suitable for data analysis. Finally, the second-order polynomial analysis and the quadratic model were used as the best model for finding the relationship between the main variables and cefalexin removal efficiency. The Box-Behnken Design model can be effective for optimizing enzymatic oxidation of cefalexin, and laccase can be used to remove cefalexin.

show abstract

Section: The Effect Of Temperaturementioning

confidence: 99%

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Shokoohi

Samadi

Amani

et al. 2018

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…700 U L -1 ) was higher than that of Trametes sp. in SSF of cassava residue (150 U L -1 ) (Li et al 2014) and Trametes hirsuta in SSF of pine wood-chip and orange peel (480 U L -1 ) (Böhmer et al 2011) and lower than that of Trametes pubescens in SSF of sunflower seed shells (5603 U L -1 ) (Rodríguez-Couto et al 2009) and Trametes versicolor in SSF of corncobs (911 U mL -1 ) (Asgher et al 2017).…”

Section: T Villosa Solid-state Fermentation In Wood-chip Biocharmentioning

confidence: 93%

Degradation of a Leather-Dye by the Combination of Depolymerised Wood-Chip Biochar Adsorption and Solid-State Fermentation with Trametes Villosa SCS-10

Ortiz-Monsalve

Gutterres

Valente

et al. 2020

Preprint

View full text Add to dashboard Cite

Adsorption into biochar-derived materials and mycoremediation are promising technologies for removing dyes from solid and liquid matrices. This study presents a combined treatment with adsorption into wood-chip biochar and mycodegradation under solid-state ermentation by Trametes villosa for removing the leather-dye Acid Blue 161. In the first stage, untreated wood-chip biochar, NaOH-depolymerised-biochar and KMnO 4 -depolymerised-biochar were assessed for their dye removal efficiency by adsorption. KMnO 4 -depolymerised-biochar exhibited the highest adsorption (85.1 ± 1.9%) after 24 h of contact. KMnO 4 -depolymerisation modified some physical and chemical properties on the untreated wood-chip biochar, increasing the surface area (50.4 m 2 g –1 ), pore size (1.9 nm), and resence of surface functional groups. Response Surface Methodology coupled with a Box-Behnken design was used to optimise the AB 161 adsorption into the KMnO 4 -depolymerised-biochar. The optimised conditions, pH 3.0, dye concentration 100 mg L –1 and sorbent dosage 2 g L –1 , led to a higher dye removal efficiency by adsorption (91.9 ± 1.0%). In a second stage, the wood-chip biochar supplemented with nutrients (1% malt extract and 0.5% peptone) was employed as a solid matrix for growing T. villosa and regenerating the dye-saturated material. After 15 days, T. villosa was able to grow (86.8 ± 0.8%), produce Laccase activity (621.9 ± 62.3 U L –1 ), and biodegrade (91.4 ± 1.3%) the dye adsorbed into the KMnO 4 -depolymerised-biochar. Finally, the mycoregenerated was reutilised in a new cycle of adsorption reaching 79.5 ± 2.0% of dye removal efficiency by adsorption. This study revealed the potential of the combined treatment and is an initial assessment for developing commercial alternatives for treating leather industry wastewaters.

show abstract

“…However, the size of the spheres greatly influences the amount of the enzyme that is immobilized. Asgher et al . reported the dependence of the immobilization efficiency on the size of chitosan microspheres.…”

Section: Polymer Supports For Degradation Of Organic Pollutantsmentioning

confidence: 99%

“…However, many investigations have been reported in which chemical modifications are made to the surface of biopolymers by incorporating small molecules such as glutaraldehyde; thus, immobilization using adsorption or covalent bonds is carried out. In this context, Asgher et al . reported the superficial modification of chitosan microspheres for Trametes versicolor laccase immobilization applied to the degradation (89.36% to 100%) of five different dyes after 4 h of incubation.…”

Section: Polymer Supports For Degradation Of Organic Pollutantsmentioning

confidence: 99%

Polymer supports for the removal and degradation of hazardous organic pollutants: an overview

Urbano

Bustamante

Palacio

et al. 2020

Polymer International

View full text Add to dashboard Cite

Over the last decades, the presence of highly organic pollutants has increased and become an environmental problem that affects all forms of life. To solve or reduce this problem, multiple strategies have been proposed for the elimination and degradation of organic compounds in aqueous media. This review aims to revise and critically discuss the most recent advances in polymer supports to be used for the adsorption and degradation of organic pollutants. However, the greatest challenge with respect to this issue is the industrial scale‐up of bioremediation processes that allow the removal and degradation of compounds in a continuous and large‐scale manner. © 2019 Society of Chemical Industry

show abstract

Enhancing catalytic functionality of Trametes versicolor IBL-04 laccase by immobilization on chitosan microspheres

Cited by 91 publications

References 59 publications

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Degradation of a Leather-Dye by the Combination of Depolymerised Wood-Chip Biochar Adsorption and Solid-State Fermentation with Trametes Villosa SCS-10

Polymer supports for the removal and degradation of hazardous organic pollutants: an overview

Contact Info

Product

Resources

About