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Immobilization of l...
Immobilization of lipase in ordered mesoporous materials : Effect of textural and structural parameters
- Article/chapterEnglish2008
Publisher, publication year, extent ...
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Elsevier BV,2008
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-58273
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-58273URI
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https://doi.org/10.1016/j.micromeso.2008.01.005DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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authorCount :5
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A systematic study dealing with the influence of several parameters oil the immobilization of lipase in ordered mesoporous materials (OMM) is presented here. In a first step, a series of OMM have been synthesized trying to cover the most relevant structures. The aim is to get variation in the key properties susceptible of influencing their behavior as lipase supports, such as the structure (cubic or hexagonal), the nature of the pores (channel-like or cage-like), the connectivity of the porous network and the pore size. Also, by following the co-condensation technique, 5-10%-methylated analogues of the pure-silica materials have been prepared. All the samples have been fully characterized with XRD, TEM (including 3D reconstruction), SEM, TGA and N-2 isotherms, and the incorporation of the organic function has been demonstrated by Si-29 NMR. All of them have been tested as supports in the immobilization of Candida antarctica Lipase B (CaLB) and the leaching of the enzyme in aqueous media evaluated. With such a systematic approach, valuable information on the influence of the textural properties and the nature of the porous network oil the yields of immobilization and enzyme desorption have been stated. Very interestingly, leaching of the enzyme can be diminished until it practically disappears without being covalently bonded to the wall, which places the ordered mesoporous materials at the starting point of a new scenario in enzyme immobilization on preexisting supports.
Subject headings and genre
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ordered mesoporous materials
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lipase
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enzyme immobilization
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NATURAL SCIENCES
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NATURVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Mayoral, AlvaroStockholms universitet
(author)
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Sakamoto, YasuhiroStockholms universitet
(author)
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Blanco, Rosa M.
(author)
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Diaz, Isabel
(author)
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Stockholms universitet
(creator_code:org_t)
Related titles
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In:Microporous and Mesoporous Materials: Elsevier BV114:03-jan, s. 201-2131387-18111873-3093
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