Titre :

Enzymatic depolymerization of industrial lignins by laccase-mediator systems in 1,4-dioxane/water

Auteur(s) :

Dillies, Justine [Auteur]
Institut Charles Viollette (ICV) - ULR 7394 [ICV]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Vivien, Celine [Auteur]
Bio-Micro-Electro-Mechanical Systems - IEMN [BIOMEMS - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Chevalier, Mickael [Auteur]
Institut Charles Viollette (ICV) - ULR 7394 [ICV]
Rulence, Alexandre [Auteur]
Institut Charles Viollette (ICV) - ULR 7394 [ICV]
Châtaigné, Gabrielle [Auteur]
Institut Charles Viollette (ICV) - ULR 7394 [ICV]
Flahaut, Christophe [Auteur]
Institut Charles Viollette (ICV) - ULR 7394 [ICV]
Senez, Vincent [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Froidevaux, Rénato [Auteur correspondant]
BioEcoAgro - Equipe 6 - Biotransformation / Enzymes and Biocatalysis
Institut Charles Viollette (ICV) - ULR 7394 [ICV]

Titre de la revue :

Biotechnology and Applied Biochemistry

Pagination :

774-782

Éditeur :

Wiley

Date de publication :

2020-09

ISSN :

0885-4513

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

Lignin is the second most abundant polymer after cellulose in lignocellulosic biomass. Its aromatic composition and recalcitrant nature make its valorization a major challenge for obtaining low molecular weight aromatics ...
Lire la suite >Lignin is the second most abundant polymer after cellulose in lignocellulosic biomass. Its aromatic composition and recalcitrant nature make its valorization a major challenge for obtaining low molecular weight aromatics compounds with high value-added from the enzymatic depolymerization of industrial lignins. The oxidation reaction of lignin polymer using laccases alone remains inefficient. Therefore, researches are focused on the use of a laccase-mediator system (LMS) to facilitate enzymatic depolymerization. Until today, the LMS system was studied using water-soluble lignin only (commercial lignins, modified lignins, or lignin model compounds). This work reports a study of three LMS systems to depolymerize the three major industrial lignins (organosolv lignin, Kraft lignin, and sodium lignosulfonate). We show that an enzymatic depolymerization of these lignins can be achieved by LMS using laccase from Trametes versicolor, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt as mediator and a cosolvent (25% of 1,4-dioxane) to enhance the solubilization of lignins.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Projet ANR :

Plateforme intégREe AppLiquée au criblage haut débit de CATalyseurs pour les bioraffineries

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL