Exploració per autor "Vidal Lluciá, Teresa"Més informacióMés informació

Ara es mostren els items 29-48 de 93

    • Electrochemical insights on the hydrophobicity of cellulose substrates imparted by the enzymatically-oxidized gallates with increasing alkyl chain length 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Tzanov, Tzanko; Roncero Vivero, María Blanca (2015-06-09)
      Article
      Accés obert
      In 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 ...

    • Elucidating the chemical nature of laccase-modified alkyl gallates 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2020-06-12)
      Article
      Accés obert
      In the first part of the present work, relevant findings concerning the laccase (Lacc) activation of alkyl gallates, and its implementation in developing hydrophobic properties on cellulose-based substrates are reported. ...

    • Elucidating the chemical nature of laccase-modified alkyl gallates 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (Universidade de Aveiro, 2018)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In the present work we investigated the chemical changes undergone by enzyme-oxidized lauryl gallate (LG, dodecyl 3,4,5,-trihydroxybenzoate) by using Fourier transform infrared (FTIR) spectroscopy, and an oxidation mechanism ...

    • Elucidating the effects of laccase-modifying compounds treatments on bast and core fibers in flax pulp 

      Fillat Latorre, Amanda; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa (2012-01)
      Article
      Accés restringit per política de l'editorial
      Laccases in combination with various chemical compounds have been tested with a view to obtain environmental friendly, high-value paper products from unbleached flax pulp, which is currently being assessed as a raw material ...

    • Endoglucanase treatments for improving pulp reactivity in biobleached and commercial dissolving pulps 

      Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this study, a bleached commercial dissolving pulp and a TCF sulphite pulp, bleached at the laboratory scale with a laccase–violuric acid system and complemented with a pressurized hydrogen peroxide stage (LVAPO), were ...

    • Enhanced fully cellulose based forward and reverse blood typing assay 

      Casals Terré, Jasmina; Farré Lladós, Josep; López Martínez, Joan Antoni; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2019-05-07)
      Article
      Accés obert
      This study presents an enhanced paper-based analytical device (PAD) for forward and reverse group blood typing. The proposed PAD uses a novel methodology, which provides highly reliable results on a fully cellulose based ...

    • Enzymatic grafting of natural phenols to flax fibres: development of antimicrobial properties 

      Fillat Latorre, Amanda; Gallardo Román, Óscar; Vidal Lluciá, Teresa; Pastor Blasco, Francisco I. Javier; Díaz Lucea, Pilar; Roncero Vivero, María Blanca (2012-01-04)
      Article
      Accés restringit per política de l'editorial
      Unbleached 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 ...

    • Enzymatic strategies to improve removal of hexenuronic acids and lignin from cellulosic fibers 

      Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014)
      Article
      Accés restringit per política de l'editorial
      Different enzymatic strategies were applied to improve lignin and hexenuronic acid (HexA) removal. Three laccases (L) with different redox potentials were applied in combination with 1-hydroxybenzotriazole or methyl syringate ...

    • Enzymatic treatments of pulp using laccase and hydrophobic compounds 

      García Ubasart, Jordi; Esteban, Alberto; Vila Babarro, Carlos; Roncero Vivero, María Blanca; Colom Pastor, José F.; Vidal Lluciá, Teresa (2011-02)
      Article
      Accés restringit per política de l'editorial
      The aim of this work was to develop an innovative method for the internal sizing of paper by use of laccase and hydrophobic compounds. Nine different products containing hydrophobic moieties were tested in combination ...

    • Enzymatic treatments of pulp using laccase and hydrophobic compounds 

      García Ubasart, Jordi; Esteban, Alberto; Vila Babarro, Carlos; Roncero Vivero, María Blanca; Colom Pastor, José F.; Vidal Lluciá, Teresa (2011-09-01)
      Article
      Accés restringit per política de l'editorial

    • Enzymatically treated sulphite pulp to give dissolving-pulp characteristics 

      Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Bleached cellulose with good end-properties (~90% ISO brightness, < 0.5 kappa number and substantially preserved cellulose integrity) was obtained by using a totally chlorine-free (TCF) biobleaching sequence. The initial ...

    • Evaluating changes on cellulosic biobleached fibers by means of thermogravimetric analysis 

      Quintana, Elisabet; Garcia Barneto, Agustín; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Ariza, J.; Roncero Vivero, María Blanca (2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The effects on fibre surface produced by the laccase-mediator system on softwood sulphite fibres were analysed in terms of surface crystallinity using thermogravimetric analysis. The starting pulp presented low content of ...

    • Evaluating the impact of combining mediators in the LMS for biobleaching or functionalization 

      Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this work, a laccase from Cerrena Unicolor (CuL) supplied by Fungal Bioproducts® was firstly applied in combination with VA in Eucalyptus globulus in order to compare its biobleaching effect with the well-known laccase ...

    • Exploring biobleaching possibilities of dissolving pulps by means of enzymatic treatments 

      Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Unbleached sulphite cellulose was subjected to an LQPo biobleaching sequence with the intention to elucidate the potential of LMS as an alternative to conventional bleaching processes. The enzymatic stage (L) was performed ...

    • Exploring the effects of treatments with carbohydrases to obtain a high-cellulose-content pulp from a non-wood alkaline pulp 

      Beltramino Heffes, Facundo; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2015-07-14)
      Article
      Accés obert
      In 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 ...

    • Facilitating the selection of raw materials: evaluation of the effects of TCF and ECF bleaching sequences on different wood and non-wood pulps 

      Beltramino, Facundo; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa; Valls Vidal, Cristina (2018-06)
      Article
      Accés obert
      Properties 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 ...

    • Functionalization of cellulosic model substrates via laccase-mediated coupling of non-polar particles 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca; Rojas, Orlando J. (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the present work we investigate the physicochemical interactions between silica and nanofibrillar cellulose (CNF) with a multi component system (MCS) obtained from an enzymatic reaction of a laccase enzyme and a short-chain ...

    • Functionalization of cellulosic substrates using a product derived from an enzymatic reaction 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The present work describes a new method for the surface functionalization of cellulosic sheets, overcoming the limitations of the traditional treatments, which are usually performed using fibrous suspensions. The method ...

    • Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment 

      Beltramino Heffes, Facundo; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa; Torres López, Antonio Luis; Valls Vidal, Cristina (2015-06-09)
      Article
      Accés obert
      In 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 ...

    • INICIACIÓ A LES TECNOLOGIES INDUSTRIALS PAPERERA I GRÀFICA (Examen 1r quadrimestre, 1r parcial) 

      Vidal Lluciá, Teresa (Universitat Politècnica de Catalunya, 2015-11-02)
      Examen
      Accés restringit a la comunitat UPC