English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/47380
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Optimization of laccase–mediator system in producing biobleached flax pulp

AutorFillat, Ursula ; Roncero, M. Blanca
Palabras claveBrightness
Flax pulp
1-Hydroxybenzotriazole dose
Fecha de publicación2009
CitaciónBioresource Technology 101(1):181–187(2009)
ResumenHigh-quality flax pulp was bleached in a short totally-chlorine-free (TCF) sequence. The LP biobleaching sequence includes an enzyme treatment with laccase in the presence of HBT as mediator (L stage) and a hydrogen peroxide stage (P stage). The operating conditions for the laccase HBT system were optimized by using a sequential statistical plan involving four variables, the influence of which on the properties of the pulp after the P stage was examined over enclosed operation conditions regarding a future industrial application. Mathematical models accurately predicting both pulp properties in terms of the previous four variables. This biobleaching sequence allows obtaining an increase in ISO brightness of 40% and a delignification of 80%. Process variables optimization in flax pulp biobleaching allows establishing the application conditions most appropriated to obtain certain pulp properties and that turn out to be easily adaptable to existing industrial processes. As a novelty, toxicity measurements were determined in L stage effluents. The results of toxicity show that it is possible to apply this LP sequence without having a negative environmental impact
Descripción7 páginas, 6 figuras, 4 tablas -- PAGS nros. 181-187
Versión del editorhttp://dx.doi.org/10.1016/j.biortech.2009.07.020
Aparece en las colecciones: (CIB) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.