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Characterization and application of a sterol esterase immobilized on polyacrylate epoxy-activated carriers (DilbeadsTM)

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dc.creator Torres, Pamela
dc.creator Datla, A.
dc.creator Rajasekar, V. W.
dc.creator Zambre, S.
dc.creator Ashar, T.
dc.creator Yates Buxcey, Malcolm
dc.creator Rojas-Cervantes, M. Luisa
dc.creator Calero-Rueda, Olga
dc.creator Barba, Víctor
dc.creator Martínez Hernández, María Jesús
dc.creator Ballesteros Olmo, Antonio
dc.creator Plou Gasca, Francisco José
dc.date 2008-07-08T17:08:42Z
dc.date 2008-07-08T17:08:42Z
dc.date 2008
dc.date.accessioned 2017-01-31T02:43:22Z
dc.date.available 2017-01-31T02:43:22Z
dc.identifier Catalysis Communications 9(4): 539-545(2008)
dc.identifier http://hdl.handle.net/10261/5687
dc.identifier 10.1016/j.catcom.2007.07.014
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5687
dc.description The sterol esterase from the ascomycete Ophiostoma piceae was immobilized on novel polyacrylate-based epoxy-activated carriers (DilbeadsTM). Six supports with particle sizes between 120-165 micrometers were prepared varying the composition of monomers, crosslinkers and porogens. Their surface areas and porosities were determined by N2 adsorption and mercury intrusion porosimetry. The pore volumes ranged from 0.63 to 1.32 cm3/g, but only DilbeadsTM RS and NK had narrow pore size distributions (with maxima at 33.5 and 67.0 nm, respectively). The distribution of the enzyme in the support was studied by fluorescence confocal microscopy. The immobilized esterase on DilbeadsTM TA showed a significant pH and thermal stability and was assayed in the continuous hydrolysis of cholesteryl esters -present in the pulp industry process waters-.
dc.description We thank Mª Teresa Seisdedos (Centro de Investigaciones Biologicas, CSIC) for help with the confocal microscopy. This research was supported by the Spanish Ministry of Education and Science (Projects BIO2002-00337 and BIO2003-00621) and Comunidad de Madrid (Project S-0505/AMB0100). We thank CSIC for a research fellowship
dc.description Peer reviewed
dc.format 3075781 bytes
dc.format application/pdf
dc.language eng
dc.publisher Elsevier
dc.relation http://dx.doi.org/10.1016/j.catcom.2007.07.014
dc.rights openAccess
dc.subject Inmovilizacion
dc.subject Enzimas
dc.subject Esteres de colesterol
dc.subject Pitch
dc.subject Esterasas
dc.subject Dilbeads
dc.subject Microscopia confocal
dc.subject Poliacrilato
dc.subject Industria papelera
dc.title Characterization and application of a sterol esterase immobilized on polyacrylate epoxy-activated carriers (DilbeadsTM)
dc.type Artículo


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