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New strategies to bleach dissolving pulps using enzymatic treatments
info:eu-repo/semantics/openAccess
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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
Subjects:
alkali resistance
;
Blanqueig
;
Blanqueig de pastes
;
Bleaching
;
brightness stability
;
carbohydrate composition
;
cellulose reactivity
;
dissolving pulp
;
Enginyeria paperera
;
Pasta de paper
;
Pasta paperera
;
Wood-pulp
;
Àrees temàtiques de la UPC
Description:
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
Creation Date:
2014
Language:
English
Source:
Recercat
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