New strategies to bleach dissolving pulps using enzymatic treatments

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Title:	New strategies to bleach dissolving pulps using enzymatic treatments
Author:	Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera; Universitat Politècnica de Catalunya. CELBIOTECH - Grup de Recerca: Enginyeria Paperera
Abstract:	A biobleaching sequence was applied to sulphite pulp in order to explore new bleaching possibilities using enzymatic treatments. Therefore, the well-known laccase-mediator system was used with the aim to achieve dissolving pulp characteristics. The enzymatic sequence was compared with a conventional hydrogen peroxide treatment in order to elucidate the effect of a laccase stage (L) for a potential industrial application. The treated pulps showed satisfactory results: high cellulose reactivity, high brightness and low content of hemicelluloses
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria paperera::Pasta paperera::Blanqueig de pastes -Wood-pulp--Bleaching -alkali resistance -brightness stability -carbohydrate composition -cellulose reactivity -dissolving pulp -Pasta de paper -- Blanqueig
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Document type:	Article - Published version Conference Object
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