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Title:
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Assessment of the potential of enzymes to produce dissolving pulps
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Author:
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Valls Vidal, Cristina; Quintana, Elisabet; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Expressió Gràfica a l'Enginyeria; Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. CELBIOTECH - Grup de Recerca: Enginyeria Paperera |
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Abstract:
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In this work, a totally chlorine free (TCF) sequence including a laccase-mediator system was developed in a softwood sulfite pulp. Then, purification was carried out employing strong alkaline extractions and hydrolytic enzymes (endoglucanases). The combination of both procedures led to reduce the amount of hemicelluloses and increase the solubility behaviour of cellulose, desired aspects for its final application. Finally, laccase-TEMPO system was used to evaluate the improvement of strength properties through oxidative modification of cellulose |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria paperera::Pasta paperera
-Wood-pulp
-Pulping
-Wood-pulp--Bleaching
-Cellulase
-Laccase
-Dissolving pulp
-Biobleaching
-Endoglucancase
-Laccase-TEMPO
-Pasta de paper
-Pasta de paper -- Blanqueig
-Pasta de paper -- Fabricació
-Cel·lulosa per a paper |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Universidade de Aveiro
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