Articles de revista
Enviaments recents
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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 ... -
Conferring antioxidant capacity to cellulose based materials by using enzymatically-modified products
(2015-05-30)
Article
Accés obertA new, industrially feasible method for conferring cellulosic substrates antioxidant properties by using enzymatic products was developed. The method allows cellulose surfaces such as those of paper sheets to be conferred ... -
Comparative evaluation of the action of two different endoglucanases. Part II: on a biobleached acid sulphite pulp
(2015-04-30)
Article
Accés obertA TCF sulphite pulp, bleached at the laboratory scale with a laccase–violuric acid system and complemented with a pressurized hydrogen peroxide stage, was treated with two endoglucanases, one obtained from Paenibacillus ... -
Comparative evaluation of the action of two different endoglucanases. Part I: on a fully bleached, commercial acid sulfite dissolving pulp
(2015-04-19)
Article
Accés obertA fully bleached commercial acid dissolving pulp was treated with two endoglucanases, one obtained from Paenibacillus barcinonensis (B) and the other one produced from Cerrena unicolor (F) with the intention to improve ...
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