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DIGITAL.CSIC
Article . 2023 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Bioresource Technology
Article . 2012 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Biobleaching of pulp from oil palm empty fruit bunches with laccase and xylanase

Authors: Martín-Sampedro, Raquel; Rodríguez Pascual, Alejandro; Ferrer, Ana; García-Fuentevilla, Luisa; Eugenio, María E.;

Biobleaching of pulp from oil palm empty fruit bunches with laccase and xylanase

Abstract

Laccase and xylanase were tested for their suitability for biobleaching of soda-anthraquinone pulp from oil palm empty fruit bunches (EFB). An enzymatic stage with xylanase (X) and/or laccase (L) was incorporated before the alkaline extraction stage (E) and the hydrogen peroxide bleaching stage (P). Compared with controls, the LEP sequence resulted in an improvement of optical properties (brightness and colorimetric properties) and a reduction of the kappa number. When xylanase and laccase were used jointly, no improvement was detected, however, when the xylanase application preceded the laccase stage, the beneficial effects of laccase were boosted. Thus, the final XLEP bleached pulp showed a kappa number of 5.4 and a brightness of 60.5% ISO, although the hydrogen peroxide consumption increased (77.0% vs. 64.5% and 73.8% for EP and LEP respectively). Finally, after subjecting the bleached pulps to accelerated ageing, the best optical properties were observed in the XLEP pulp.

Country
Spain
Keywords

Eucalyptus, Xylosidases, Alternative raw materials, Xylanase, Laccase, Color, Anthraquinones, Oil palm empty fruit bunches (EFB), Biobleaching

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
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39
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Italian National Biodiversity Future Center