Metallo-stannosilicates as inorganic supports to immobilization of lipase from Thermomyces lanuginosus for biodiesel production

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDa Silva, Danilo Antonio-
Autor(es): dc.creatorDe Vasconcellos, Adriano-
Autor(es): dc.creatorNery, José Geraldo-
Data de aceite: dc.date.accessioned2025-08-21T21:20:10Z-
Data de disponibilização: dc.date.available2025-08-21T21:20:10Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.26850/1678-4618eqj.v46.1SI.2021.p75-89-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233130-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233130-
Descrição: dc.descriptionThis study reports the application of metallo-stannosilicates as potential inorganic solid matrixes for enzymes immobilization and their use as a heterogenous catalysts in enzymatic transesterification reactions for the conversion of triacylglycerides into fatty acid ethyl esters (FAEEs). Several stannosilicates were synthesized and physicochemical characterized by X-ray powder diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDS), Brunauer–Emmett–Teller (BET)-N2 surface area analysis and solid-state magic-angle spinning nuclear magnetic resonance (MAS NMR 29Si and 119Sn nuclei) techniques. The experimental results for enzymes immobilization were promising, especially for a nickel ion-exchanged metallo-stannosilicate, which were able to immobilize 82 ± 6% of Thermomyces lanuginosus lipase and also kept a high enzymatic activity (42 ± 3 U mg–1). Systematic catalytic reactions for conversion of refined palm oil (Elaeis guineensis) using some of these stannosilicates enzymes complexes yielded 63.3 ± 0.7% of FAEEs. It is worth noticing that, when the transesterification reaction was performed with (a) the as-made stannosilicate without enzymes and (b) the equivalent amount of immobilized Thermomyces lanuginosus lipase in its free form, the FAEEs yield sharply decreased to < 5.0% and 6.3 ± 0.3%, respectively. This result is a clear evidence of a synergistic effect among the metallo-stannosilicates and the immobilized enzymes.-
Descrição: dc.descriptionSão Paulo State University Institute of Biosciences Letters and Exact Sciences-
Descrição: dc.descriptionSão Paulo State University Institute of Biosciences Letters and Exact Sciences-
Formato: dc.format75-89-
Idioma: dc.languageen-
Relação: dc.relationEcletica Quimica-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiofuels-
Palavras-chave: dc.subjectEnzymatic catalysis-
Palavras-chave: dc.subjectEnzymes immobilization-
Palavras-chave: dc.subjectHeterogeneous catalysts-
Palavras-chave: dc.subjectStannosilicates-
Título: dc.titleMetallo-stannosilicates as inorganic supports to immobilization of lipase from Thermomyces lanuginosus for biodiesel production-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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