Monitoring oxidation-reduction potential of laccase-mediator system: can the efficiency of a redox mediator for deslignifying kenaf pulp be predicted?

Autor:	Andreu Terrén, Glòria, Vidal Lluciá, Teresa|||0000-0001-6269-4114
Přispěvatelé:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera, Universitat Politècnica de Catalunya. CELBIOTECH - Grup de Recerca: Enginyeria Paperera
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Enginyeria paperera::Pasta paperera::Blanqueig de pastes [Àrees temàtiques de la UPC] Wood-pulp -- Bleaching Pasta de paper -- Blanqueig -- Congressos
Zdroj:	Recercat. Dipósit de la Recerca de Catalunya Universitat Jaume I UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC)
Popis:	The oxidative ability of five phenolic compounds (acetosyringone, syringaldehyde, p-coumaric acid, vanillin and actovanillone) and the laccase–mediator systems was determined by monitoring the oxidation–reduction potential (ORP) during solution oxidation and kenaf lignin oxidation process. The results confirmed the production of phenoxy radicals of variable reactivity and stressed the significant role of lignin structure in the enzymatic process. Although changes in ORP were correlated with the oxidative ability of the mediators, pulp properties determined after the bleaching stage were also influenced by condensation and grafting reactions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ba321bd19f939e355e128a605c827b2d https://hdl.handle.net/2117/23478 Zobrazit plný text záznamu