Exploració per autor "Valls Vidal, Cristina"
Ara es mostren els items 79-90 de 90
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Rapid functionalisation of cellulose-based materials using a mixture containing laccase activated lauryl gallate and sulfonated lignin
Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014-01-11)
Article
Accés restringit per política de l'editorialAn innovative method has been developed for the surface hydrophobisation of cellulose-based materials by coating it with a functionalised solution (FS), in which sonicated lauryl gallate (LG, dodecyl 3,4,5,-trihydroxybenzoate), ... -
Recerca i tecnologia en enginyeria gràfica i disseny a la Universitat Politècnica de Catalunya
García Carrillo, Àgueda; Ramos Cabal, Alba; Datas Medina, Alejandro; Sureda Carbonell, Bàrbara; Faura López de Haro, Bernat; del Cañizo Nadal, Carlos; Valls Vidal, Cristina; Hernández Díaz, David; Mestres Domenech, Francesc; Bermúdez Rodríguez, Francisco; Hernández Abad, Francisco; Peña Andrés, Javier; Ivern Cacho, Jordi; Lapaz Castillo, José Luís; Ibáñez García, José María; Roncero Vivero, María Blanca; López Membrilla, Manuel; Alcaraz Sendra, Olga; Cusola Aumedes, Oriol; Rojas, Orlando J.; Farrerons Vidal, Óscar; Villar Ribera, Ricardo Alberto; Baltà Salvador, Rosó; Castro de Losada, Rubén de; Hernández Abad, Vicente (OmniaScience, 2020-03-02)
Llibre
Accés obertEls temps canvien cada vegada més ràpidament, i a la universitat això encara es nota més. L’històric departament d‘Expressió Gràfica a l’Enginyeria (EGE) de la Universitat Politècnica de Catalunya, garant d’una docència ... -
Removal of lignin and hexenuronic acids from sisal fibers with novel xylanases belonging to different GH families
Valenzuela, Susana V.; Valls Vidal, Cristina; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa; Diaz, Pilar; Pastor Blasco, Francisco Ignacio Javier (2014)
Comunicació de congrés
Accés restringit per política de l'editorialThe aim of this study was to evaluate five different preparations of xylanases from Paenibacillus barcinonensis, a highly xylanolytic species, who is able to grow on xylan as a sole carbon source. As raw material to assess, ... -
Revalorització dels fangs de la indústria paperera per produir films per l’embalatge
Quintana, Elisabet; Valls Vidal, Cristina; Roncero Vivero, María Blanca (OmniaScience, 2023-03)
Comunicació de congrés
Accés obertEl 2020 la producció mundial de paper va ser de més de 400 milions de tones (FAO 2022), i es van generar entre 40 i 50 kg de fang sec per tona de paper produït. La composició dels fangs depèn de les matèries primeres ... -
Simulation of bleaching of soda pulp from Hesperaloe funifera by polynomial and neural fuzzy models
Rosal, Antonio; Valls Vidal, Cristina; Roncero Vivero, María Blanca; Rodríguez Pascual, Alejandro (2012)
Article
Accés obertInfluence 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 ... -
Studying the effects of laccase treatment in a softwood dissolving pulp: cellulose reactivity and crystallinity
Quintana, Elisabet; Valls Vidal, Cristina; Garcia Barneto, Agustín; Vidal Lluciá, Teresa; Ariza, J.; Roncero Vivero, María Blanca (2014-11-05)
Article
Accés obertAn enzymatic biobleaching sequence (LVAQPO) using a laccase from Trametes villosa in combination with violuric acid (VA) and then followed by a pressurized hydrogen peroxide treatment (PO) was developed and found to give ... -
The role of xylanases and laccases on hexenuronic acid and lignin removal
Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2010-03)
Article
Accés restringit per política de l'editorial -
Using both xylanase and laccase enzymes for pulp bleaching.
Valls Vidal, Cristina; Roncero Vivero, María Blanca (2009)
Article
Accés restringit per política de l'editorialTwo enzyme treatments involving xylanase (X) and laccase (L) were used jointly in an XLE sequence (where E denotes alkaline extraction) to bleach oxygen-delignified eucalyptus kraft pulp in the presence of 1-hydroxybenzotriazol ... -
Using electrochemical methods to study the kinetics of laccase-catalyzed oxidation of phenols
Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2018-02-01)
Article
Accés obertIn 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 ... -
Using glycosidases to modify TCF bleached specialty sisal fibers
Beltramino Heffes, Facundo; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014)
Comunicació de congrés
Accés restringit per política de l'editorialModifying fibers in order to upgrade them to dissolving grade involves several changes. Paper grade pulps can be used to yield this kind of raw materials, if the necessary modifications are carried out. Classic processes ... -
Valorization of paper waste sludge to produce films for packaging
Quintana, Elisabet; Valls Vidal, Cristina; Roncero Vivero, María Blanca (Ca' Foscari University of Venice, 2023)
Comunicació de congrés
Accés restringit per política de l'editorialThe global production of paper was more than 400 million tons in 2020, and about 40–50 kg of dry sludge/ton paper produced was generated. The management of this huge volume of solid waste material has become a serious ... -
Valorization of waste paper sludge as a sustainable source for packaging applications
Quintana, Elisabet; Valls Vidal, Cristina; Roncero Vivero, María Blanca (Springer Nature, 2024-02-09)
Article
Accés obertPaper sludge consists mainly of wet short cellulose fibers that are lost during papermaking and of residual chemicals used in the manufacturing process that remain dissolved in the water. Each ton of paper generates about ...