Title:
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New strategies to bleach dissolving pulps using enzymatic treatments
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Author:
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Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera; Universitat Politècnica de Catalunya. CELBIOTECH - Grup de Recerca: Enginyeria Paperera |
Abstract:
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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):
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-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 |
Rights:
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Document type:
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Article - Published version Conference Object |
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