Exploring lignin depolymerization by a bi-enzyme system containing aryl alcohol oxidase and lignin peroxidase in aqueous biocompatible ionic liquids

2021 ◽  
pp. 125564
Author(s):  
Enshi Liu ◽  
Fernando Segato ◽  
Rolf A. Prade ◽  
Mark R. Wilkins
Keyword(s):  
Ionic Liquids ◽  
Lignin Peroxidase ◽  
Enzyme System ◽  
Alcohol Oxidase ◽  
Lignin Depolymerization

Degradation of lignin with aqueous ammonium-based ionic liquid solutions under milder conditions

2019 ◽  
Vol 43 (8) ◽  
pp. 3357-3365 ◽  
Author(s):  
Leta Deressa Tolesa ◽  
Bhupender S. Gupta ◽  
Ming-Jer Lee
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Solutions ◽  
Lignin Depolymerization

Ammonium-based ionic liquids can serve as solvents and promoters for lignin depolymerization.

Decolorization and Detoxication of Reactive Industrial Dyes by Immobilized Laccases

2012 ◽  
Vol 550-553 ◽  
pp. 2279-2283
Author(s):  
Ge Yang ◽  
Ke Shuai Lu ◽  
Xue Yan Su
Keyword(s):  
Enzyme Activity ◽  
Polyurethane Foam ◽  
Lignin Peroxidase ◽  
Laccase Activity ◽  
Lemna Minor ◽  
Alcohol Oxidase ◽  
Clear Correlation ◽  
Ecotoxicity Test

Laccase immobilized on polyurethane foam cubes in bioreactors, were used to decolorize three industrial and model dyes at concentrations of 200, 1000 and 2000 ppm. Five sequential cycles were run for each dye and fungus. The activity of laccase, Mn-dependent and independent peroxidases, lignin peroxidase, and aryl-alcohol oxidase were daily monitored during the cycles and the toxicity ofmedia containing 1000 and 2000 ppm of each dye was assessed by the Lemna minor (duckweed) ecotoxicity test. Laccase was able to efficiently decolorize all dyes even at the highest concentration, and the duckweed test showed a significant reduction (p≤ 0.05) of the toxicity after the decolorization treatment. Laccase activities varied greatly and no clear correlation between decolorization and enzyme activity was obselved a high laccase activity during decolorization cycles. Laccase showed better decolorization and detoxication capability.

Catalytic depolymerization of alkali lignin in ionic liquids on Pt-supported La2O3–SO42−/ZrO2 catalysts

2020 ◽  
Vol 4 (3) ◽  
pp. 1409-1416 ◽  
Author(s):  
Xiuhui Wang ◽  
Yi Luo ◽  
Moriko Qian ◽  
Eika W. Qian
Keyword(s):  
Ionic Liquids ◽  
Synergistic Effect ◽  
Flow Reactor ◽  
Alkali Lignin ◽  
Hypothetical Mechanism ◽  
Lignin Depolymerization

The synergistic effect of ionic liquids and catalysts and a hypothetical mechanism of lignin depolymerization in a flow reactor are elucidated.

Inhibition of veratryl alcohol oxidase activity of lignin peroxidase H2 by 3-amino-1,2,4-triazole

1992 ◽  
Vol 293 (2) ◽  
pp. 287-291 ◽  
Author(s):  
Helfried Tuisel ◽  
Thomas A. Grover ◽  
John A. Bumpus ◽  
Steven D. Aust
Keyword(s):  
Lignin Peroxidase ◽  
Oxidase Activity ◽  
Alcohol Oxidase ◽  
Veratryl Alcohol ◽  
Veratryl Alcohol Oxidase

Aryl-alcohol oxidase and lignin peroxidase from the white-rot fungus Bjerkandera adusta

1990 ◽  
Vol 13 (2-3) ◽  
pp. 159-167 ◽  
Author(s):  
Andreas Muheim ◽  
Matti S.A. Leisola ◽  
Hans E. Schoemaker
Keyword(s):  
Lignin Peroxidase ◽  
Alcohol Oxidase ◽  
White Rot ◽  
White Rot Fungus ◽  
Bjerkandera Adusta
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