Articles de revista
Enviaments recents
-
Facilitating the selection of raw materials: evaluation of the effects of TCF and ECF bleaching sequences on different wood and non-wood pulps
(2018-06)
Article
Accés obertProperties of cellulosic raw materials are known to vary widely among different sources. The interest in the usage of non-conventional fibers makes necessary a better knowledge of the peculiarities of each source and their ... -
Antioxidant activity of xylooligosaccharides produced from glucuronoxylan by Xyn10A and Xyn30D xylanases and eucalyptus autohydrolysates
(2018-08-15)
Article
Accés restringit per política de l'editorialAntioxidant activity of xylooligosaccharides (XOS) released from beechwood and birchwood glucuronoxylans by two different xylanases, one from family GH10 (Xyn10A) and another from family GH30 (Xyn30D) was examined. The ... -
Particulate coatings via evaporation-induced self-assembly of polydisperse colloidal lignin on solid interfaces
(2018-05-02)
Article
Accés restringit per política de l'editorialPolydisperse smooth and spherical biocolloidal particles were suspended in aqueous media and allowed to consolidate via evaporation-induced self-assembly. The stratification of the particles at the solid–air interface was ... -
A novel enzymatic approach to nanocrystalline cellulose preparation
(2018-06-01)
Article
Accés restringit per política de l'editorialIn this work, conditions for an enzymatic pretreatment prior to NCC isolation from cotton linter were assessed. Different cellulase doses and reaction times were studied within an experimental design and NCC were obtained. ... -
REPlicating RAPid microfluidics: self-replicating printer for hydrophobic pattern deposition
(2017-12-01)
Article
Accés restringit per política de l'editorialPaper-based microfluidics broadens the use of point-of-care devices to applications and situations wherein cost is an important restriction. This study focuses on the REPRAP PRUSA i3 Printer that can print itself a part ... -
Using electrochemical methods to study the kinetics of laccase-catalyzed oxidation of phenols
(2018-02-01)
Article
Accés restringit per política de l'editorialIn the present work, the laccase kinetics upon the oxidation process of phenolic compounds was studied using cyclic voltammetry (CV). Several hydroxybenzoic and cinnamic acid compounds were analyzed, and the oxidation ... -
Cellulose oxidation by Laccase-TEMPO treatments
(2017-02-10)
Article
Accés obertIn this work, laccase-TEMPO (Lac-T) treatments were applied to bleached commercial dissolving pulp in order to introduce carbonyl and carboxyl groups, which were found to improve dry and wet strength-related properties. ... -
Optimization of sulfuric acid hydrolysis conditions for preparation of nanocrystalline cellulose from enzymatically pretreated fibers
(2016-03-22)
Article
Accés obertNCC preparation using sulfuric acid hydrolysis from cellulase pretreated fibers was optimized in order to obtain the highest possible yield with 62% and 65% wt. sulfuric acid throughout two statistical plans. At optimal ... -
Exploring the effects of treatments with carbohydrases to obtain a high-cellulose-content pulp from a non-wood alkaline pulp
(2015-07-14)
Article
Accés obertIn this work, treatments with a xylanase (X) and carbohydrases mixture (Cx) were 19 applied on a TCF bleached sisal pulp in order to obtain high-cellulose content fibers 20 applicable on a wide range of uses. A limit of ... -
Electrochemical insights on the hydrophobicity of cellulose substrates imparted by the enzymatically-oxidized gallates with increasing alkyl chain length
(2015-06-09)
Article
Accés obertIn this work, we studied the influence of the alkyl chain length in enzymatically-oxidized gallates on the development of hydrophobicity on paper-based materials, and further correlated the obtained effect to the redox ... -
Mineralization of hetero bi-functional reactive dye in aqueous solution by Fenton and photo-Fenton reactions
(2015-08-18)
Article
Accés obertThis study focused on the advanced oxidation of the hetero bi-functional reactive dye Sumifix Supra Yellow 3RF (CI Reactive Yellow 145) using dark Fenton and photo-Fenton conditions in a lab-scale experiment. A 2(3) factorial ... -
Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
(2015-06-09)
Article
Accés obertIn this work the introduction of a cellulase treatment prior to NCC isolation was assessed. NCC was produced using sulfuric acid at two different concentrations (62 and 64% wt.). The effect of pore size for filtration step ...
RSS 1.0