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Laccase-mediated coupling of nonpolar chains for the hydrophobization of lignocellulose
(2013-04-09)
Article
Restricted access - publisher's policyWe investigate the use of laccase enzymes to couple short nonpolar chains containing aromatic groups onto flax fibers and nanofibrillated cellulose (NFC) with different lignin contents. Trametes villosa, Pycnoporus ... -
Biomodification of cellulose flax fibers by a new cellulase
(2013-01)
Article
Restricted access - publisher's policyThe potential of the new cellulase Cel9B from Paenibacillus barcinonensis for the modification of cellulose flax fibers was for the first time assessed in this work. Cel9B treatments were found to enhance the development ... -
Effect of commercial xylanases applied at extreme conditions in a eucalyptus pulp mill
(2012-10)
Article
Restricted access - publisher's policyIn this study, we examined the effect of treating eucalyptus pulp with various commercial xylanases to identify the most effective enzyme for use under the industrial bleaching conditions used at the Jacareí mill of the ... -
Laccase for biobleaching of eucalypt kraft pulp by means of a modified industrial bleaching sequence
(2012-09)
Article
Restricted access - publisher's policyBiobleaching of kraft pulp is a possible application of laccase, but it has not been described in detail for complete industrial bleaching sequences yet. Therefore, in this work, the biobleaching of Eucalyptus globulus ... -
Effect of residual lignin and heteropolysaccharides in nanofibrillar cellulose and nanopaper from wood fibers
(2012-12)
Article
Restricted access - publisher's policyUnbleached (UN), oxygen-delignified and fully-bleached (FB) birch fibers with a residual lignin content of ca. 3, 2 and\1 %, respectively, were used to produce nanofibrillated cellulose (NFC) and nanopaper by using an ... -
Cyclodextrin functionalization of several cellulosic substrates for prolonged release of antibacterial agents
(Wiley InterScience, 2012-11-13)
Article
Restricted access - publisher's policySeveral cellulosic substrates have been surface-functionalized with cyclomaltoheptaose (b-cyclodextrin, b-CD) using citric acid as a crosslinker agent to obtain new surface-modified materials able to release antiseptic ... -
Application of surface enzyme treatments using laccase and a hydrophobic compound to paper-based media
(2013-01-11)
Article
Restricted access - publisher's policyA new approach for the hydrophobization of finished cellulosic substrates based on a previously reported enzymatic technique is proposed. Commercial finished paper was hydrophobized by using laccase from Trametes villosa ... -
Laccase from Pycnoporus cinnabarinus and phenolic compounds: can the efficiency of an enzyme mediator for delignifying kenaf pulp be predicted?
(2012-03)
Article
Restricted access - publisher's policyIn this work, kenaf pulp was delignified by using laccase in combination with various redox mediators and the efficiency of the different laccase–mediator systems assessed in terms of the changes in pulp properties after ... -
Enzymatic grafting of natural phenols to flax fibres: development of antimicrobial properties
(2012-01-04)
Article
Restricted access - publisher's policyUnbleached flax fibres for paper production were treated with laccase from Pycnoporus cinnabarinus and low molecular weight phenols (syringaldehyde – SA, acetosyringone – AS and p-coumaric acid – PCA) to evaluate the ... -
Use of cyclic voltammetry as an effective tool for selecting effcient enhancers for oxidative bioprocesses: importance of pH
(American Chemical Society (ACS), 2013-01-04)
Article
Restricted access - publisher's policySeven natural phenols and two synthetic compounds were evaluated by means of cyclic voltammetry as enhancers for the oxidation of the lignin model compound veratryl alcohol (VAl) and a sulfonated lignin (SL). Their ... -
Performance of new and commercial xylanases for ECF and TCF bleaching of eucalyptus kraft pulp
(2011-08)
Article
Restricted access - publisher's policySince xylanases can differ widely in their bleaching efficiency, the performance of one new and two commercial xylanases was evaluated in an eucalyptus kraft pulp following XD (X: xylanase; D: chlorine dioxide) and XP (P: ... -
Simulation of bleaching of soda pulp from Hesperaloe funifera by polynomial and neural fuzzy models
(2012)
Article
Open AccessInfluence of variables [soda, (0.5 to 3.0%), hydrogen peroxide (1.0 to 10.0%) and time (1 to 5 h)] in the bleaching of soda pulp of Hesperaloe funifera, on the properties of bleached pulps, was studied. Polynomial and ...
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