Now showing items 1-10 of 10

    • Biocatalytic preparation of dichloropropyl acrylates. Application to the synthesis of poly(dichloropropyl acrylates) 

      Yara Varón, Edinson; Eras i Joli, Jordi; Torres i Grifo, Mercè; Balcells Fluvià, Mercè; Villorbina Noguera, Gemma; Canela i Garayoa, Ramon (Elsevier, 2013)
      The synthesis of dichloropropyl acrylates from dichloropropyl dodecanoates through a transesterification process using diverse commercial lipases and whole cells (fungal resting cells) is presented. The synthesis was carried ...
    • [BMIM][PF6] Promotes the synthesis of halohydrin esters from diols using potassium halides 

      Oromí Farrús, Mireia; Eras i Joli, Jordi; Villorbina Noguera, Gemma; Torres i Grifo, Mercè; Llopis-Mestre, Verónica; Welton, Tom; Canela i Garayoa, Ramon (Japan Society for Analytical Chemistry, 2008)
      Haloesterification of diverse diols with various carboxylic acids was achieved using potassium halides (KX) as the only halide source in ionic liquids. The best yield was obtained in [BMIM][PF6] when 1,2-octanediol, palmitic ...
    • Characterisation of phenolic compounds in processed fibres from the juice industry 

      Delpino Rius, Antoni; Eras i Joli, Jordi; Vilaró, Francisca; Cubero, Miguel Ángel; Balcells Fluvià, Mercè; Canela i Garayoa, Ramon (Elsevier, 2015)
      The content of phenolic compounds was determined in nine industrially processed fibres derived from the juice industry. Apple, peach, and pear as non-citrus fruit fibres were examined, as well as orange peel and flesh, ...
    • Combining AlCl3·6H2O and an ionic liquid to prepare chlorohydrin esters from glycerol 

      Villorbina Noguera, Gemma; Tomàs, Albert; Escribà i Gelonch, Marc; Oromí Farrús, Mireia; Eras i Joli, Jordi; Balcells Fluvià, Mercè; Canela i Garayoa, Ramon (Elsevier, 2009)
      We describe here the first example in which glycerol has been transformed into chlorohydrin esters using an ionic liquid and hydrated aluminium chloride. The method avoids using Crown-18 ether, which was needed to obtain ...
    • Determination of the iodine value of biodiesel using 1H NMR with 1,4-dioxane as an internal standard 

      Oromí Farrús, Mireia; Villorbina Noguera, Gemma; Eras i Joli, Jordi; Gatius Cortiella, Ferran; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Elsevier, 2010)
      Iodine values (IVs) of some biodiesel samples were analyzed using both 1H NMR and a standard iodometric method. 1H NMR was carried out with and without 1,4-dioxane as an internal standard (IS). The results obtained using ...
    • Entrapment in polymeric material of resting cells of Aspergillus flavus with lipase activity. Application to the synthesis of ethyl laurate 

      Yara Varón, Edinson; Eras i Joli, Jordi; Torres i Grifo, Mercè; Villorbina Noguera, Gemma; Espart, A.; Canela i Garayoa, Ramon (Royal Society of Chemistry, 2014)
      The lipase activity of resting cells of Aspergillus flavus was improved by entrapment in various polymeric acrylates (PAAFs). Commercially available ethyl acrylate, butyl acrylate and ethyl methacrylate, and acrylates ...
    • Lipase activity and enantioselectivity of whole cells from a wild-type Aspergillius flavus strain 

      Solarte Orozco, Carmen Eugenia; Yara Varón, Edinson; Eras i Joli, Jordi; Torres i Grifo, Mercè; Balcells Fluvià, Mercè; Canela i Garayoa, Ramon (Elsevier, 2014)
      This study reports the high enantiomeric preference of whole cell lipase from Aspergillus flavus wild-type that allows the preparation of a chiral secondary alcohol. Whole cells prepared from a wild-type Aspergillus flavus ...
    • Preparation of (S)-1-halo-2-octanols using ionic liquids and biocatalysts 

      Oromí Farrús, Mireia; Eras i Joli, Jordi; Sala i Martí, Núria; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Molecular Diversity Preservation International, 2009)
      Preparation of (S)-1-chloro-2-octanol and (S)-1-bromo-2-octanol was carried out by the enzymatic hydrolysis of halohydrin palmitates using biocatalysts. Halohydrin palmitates were prepared by various methods from palmitic ...
    • Solvent-free biocatalytic interesterification of acrylate derivatives 

      Yara Varón, Edinson; Eras i Joli, Jordi; Torres i Grifo, Mercè; Sala i Martí, Núria; Villorbina Noguera, Gemma; Méndez, Jonh Jairo; Canela i Garayoa, Ramon (Elsevier, 2012)
      The ability of diverse commercial lipases and whole cells (fungal resting cells) to synthesise allyl and dichloropropyl acrylate from allyl dodecanoate through an interesterification process is presented. The process was ...
    • Synthesis of poly(ethyl acrylate-co-allyl acrylates) from acrylate mixtures prepared by a continuous solvent-free enzymatic process 

      Yara Varón, Edinson; Eras i Joli, Jordi; Balcells Fluvià, Mercè; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Royal Society of Chemistry, 2012)
      A miniaturized, packed-bed, continuous-flow reactor to carry out the enzymatic interesterification of ethyl acrylate with diverse allyl aliphatic esters is described. CALB (lipase B from Candida antarctica immobilized on ...