Browsing by Subject "Cel·lulosa -- Química"
Now showing items 1-8 of 8
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A facile and green method to hydrophobize films of cellulose nanofibrils and silica by laccase-mediated coupling of nonpolar colloidal particles
(2014-10-01)
Article
Restricted access - publisher's policyHydrophobic particles based on dodecyl 3,4,5-trihydroxybenzoate (LG) were coupled onto the surface of cellulose nanofibrils (CNFs) and silica by treatment with a multicomponent colloidal system (MCS) derived from the ... -
Cellulose oxidation by Laccase-TEMPO treatments
(2017-02-10)
Article
Open AccessIn 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. ... -
Challenges in synthesis and analysis of asymmetrically grafted cellulose nanocrystals via atom transfer radical polymerization
(2021-06-01)
Article
Open AccessWhen cellulose nanocrystals (CNCs) are isolated from cellulose microfibrils, the parallel arrangement of the cellulose chains in the crystalline domains is retained so that all reducing end-groups (REGs) point to one ... -
Estudi de l'obtenció de nano-cel·lulosa utilitzant tècniques biotecnològiques per a la modificació superficial de suports cel·lulòsics
(Universitat Politècnica de Catalunya, 2015-06-29)
Bachelor thesis
Restricted access - author's decision -
Estudio de la obtención de celulosa mediante ozono y métodos biotecnológicos
(Universitat Politècnica de Catalunya, 2017-01)
Bachelor thesis
Restricted access - author's decisionLa materia prima utilizada es eucalipto (Eucalyptus globulus). Se utiliza las astillas de eucalipto y por medio de procesos como la Autohidrólisis y la cocción Kraft seguidamente de procesos de blanqueo como el blanqueo ... -
Obtaining biobleached eucalyptus cellulose fibres by using various enzyme combinations
(2013)
Article
Restricted access - publisher's policyVarious combinations of laccases, xylanase and cellulase were used to biobleach cellulose fibres from eucalyptus. The Trametes villosa and Myceliophthora thermophila laccases were used in combination with violuric acid ... -
Optimitzación de la biosíntesis de nanocelulosa bacteriana por fermentación
(Universitat Politècnica de Catalunya, 2017-10-03)
Master thesis
Open AccessLa cel·lulosa bacteriana és un biopolímer obtingut per fermentació amb diversos microorganismes, dels quals l’espècie més eficient en la producció és la Gluconacetobacter xylinus sucrofermentans. La principal diferencia ... -
Using electrochemical methods to study the kinetics of laccase-catalyzed oxidation of phenols
(2018-02-01)
Article
Open AccessIn 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 ...
