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dc.contributor.author
Bonazza, Horacio
dc.contributor.author
Manzo, Ricardo Martín
dc.contributor.author
Dos Santos, José C.S.
dc.contributor.author
Mammarella, Enrique José
dc.date.available
2018-01-16T17:35:17Z
dc.date.issued
2017-06
dc.identifier.citation
Dos Santos, José C.S.; Mammarella, Enrique José; Bonazza, Horacio; Manzo, Ricardo Martín; Operational and Thermal Stability Analysis of Thermomyces lanuginosus Lipase Covalently Immobilized onto Modified Chitosan Supports; Humana Press; Applied Biochemistry And Biotechnology; 184; 6-2017; 182-196
dc.identifier.issn
0273-2289
dc.identifier.uri
http://hdl.handle.net/11336/33425
dc.description.abstract
The aim of this paper was to evaluate different strategies of chitosan activation using cross-linking reagent like glycidol, epichlorohydrin, and glutaraldehyde for Thermomyces lanuginosus lipase (TLL) immobilization. Operational activity and stability by esterification of oleic acid with ethanol and thermal inactivation using these derivatives were investigated. Derivative obtained by sequentially activation with glycidol, ethylenediamine, and glutaraldehyde and subsequent TLL immobilization showed the best performance, with high hydrolytic activity value. Its stability was 15-fold higher than solubilized TLL in the evaluated inactivation conditions (60 °C, 25 mM sodium phosphate buffer pH 7). After 5 cycles of oleic acid esterification, only a few percentage of its conversion has reduced. On the other hand, glycidol-activated chitosan derivative showed very low hydrolytic activity value. Epichlorohydrin-activated chitosan derivative showed regular hydrolytic activity value. Both derivatives showed low immobilization yields. Operational stability of this last derivative was very low, where after the first cycle of oleic acid esterification, only 56% of its initial conversion was obtained.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Humana Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Biodiesel
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Chitosan
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Esterification
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Immobilization
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Lipase
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Thermomyces Lanuginosus
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Biotecnología Industrial
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Biotecnología Industrial
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Operational and Thermal Stability Analysis of Thermomyces lanuginosus Lipase Covalently Immobilized onto Modified Chitosan Supports
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-12T19:44:31Z
dc.journal.volume
184
dc.journal.pagination
182-196
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Bonazza, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Manzo, Ricardo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Dos Santos, José C.S.. Universidade Da Integração Internacional Da Lusofonia Afro-brasileira;
dc.description.fil
Fil: Mammarella, Enrique José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Applied Biochemistry And Biotechnology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s12010-017-2546-9
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