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An enzyme-catalysed bleaching treatment to meet dissolving pulp characteristics for cellulose derivatives applications

Autor
Quintana, E.; Valls, C.; Vidal, T.; Roncero, M.B.
Tipus d'activitat
Article en revista
Revista
Bioresource technology
Data de publicació
2013-11
Volum
148
Pàgina inicial
1
Pàgina final
8
DOI
https://doi.org/10.1016/j.biortech.2013.08.104 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/20399 Obrir en finestra nova
Resum
Bleached cellulose with good end-properties (_90% ISO brightness and 62% cellulose preservation) was obtained by using a totally chlorine-free biobleaching process (TCF). Unbleached sulphite cellulose was treated with Trametes villosa laccase in combination with violuric acid. This enzymatic stage (L) was followed by a chelating stage (Q) and then by a hydrogen peroxide stage reinforced with pressurized oxygen (Po), resulting to an overall LQPo sequence. The use of violuric acid was dictated by ...
Citació
Quintana, E. [et al.]. An enzyme-catalysed bleaching treatment to meet dissolving pulp characteristics for cellulose derivatives applications. "Bioresource technology", Novembre 2013, vol. 148, p. 1-8.
Paraules clau
Biobleaching, Bioprocess, Dissolving pulp, Laccas, Violuric acid
Grup de recerca
CELBIOTECH - Grup de Recerca: Enginyeria Paperera