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New nanocomposite made of cashew apple bagasse lignin and Fe3O4 for immobilizing of lipase B from Candida antarctica aiming at esterification
dc.contributor.author | Serpa, Juliana De França | |
dc.contributor.author | Matias, Gabriel A.B. | |
dc.contributor.author | Almeida Fechine, Pierre Basílio | |
dc.contributor.author | da Costa, Victor M. | |
dc.contributor.author | Melo Freire, Rafael | |
dc.contributor.author | Casagrande Denardin, Juliano | |
dc.contributor.author | Barros Gonçalves, Luciana Rocha | |
dc.contributor.author | Casimiro De Macedo, André | |
dc.contributor.author | Valderez Ponte Rocha, Maria | |
dc.date.accessioned | 2021-06-15T20:37:33Z | |
dc.date.available | 2021-06-15T20:37:33Z | |
dc.date.issued | 2021 | |
dc.identifier | 10.1002/jctb.6770 | |
dc.identifier.issn | 02682575 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12728/8934 | |
dc.description.abstract | BACKGROUND: Novel magnetite-lignin hybrid materials were synthesized using lignin from cashew apple bagasse (CAB) and iron oxide nanoparticles (magnetite, Fe3O4). The new material, termed MNs/Lig (magnetite conjugated with lignin), was used as a support for the immobilization of lipase B from Candida antarctica (CAL─B), aiming to obtain an active and stable biocatalyst that is easily recoverable from the reactional medium. RESULTS: The magnetite/lignin composite showed a higher thermal stability than pure lignin, and it presented good magnetic properties, both before and after the immobilization procedure. The immobilization yield was higher using the unaltered MN/Lig as a support than when using the glutaraldehyde-activated MNs/Lig (MNs/Lig_GA), with yields of 66.6% and 40.0%, respectively. The presence of Triton X-100 did not influence the immobilization yield or the thermal stability of the biocatalyst when employing the unaltered MNs/Lig. However, it influenced the thermal stability of the lipase immobilized on MNs/Lig_GA, lowering the biocatalyst stability, which showed a half-life 11-fold lower than that of MNs/Lig_GA_CALB. The biocatalysts were tested with regards to the synthesis of ethyl oleate using oleic acid and ethanol as substrates, and 2-ethylhexyl oleate (a biolubricant) using oleic acid and 2-ethyl-hexanol as substrate. The conversions obtained by MNs/Lig_Tri_CALB were 88.2% and 76.7% for ethyl oleate and 2-ethylhexyl oleate, respectively. CONCLUSION: The novel strategy presented in this work for obtaining a biocatalyst using synthesized hybrids (MNs/Lig) may be a promising route for lipase immobilization because it can be considered environmentally benign and it shows a strong potential use in several reactions of industrial interest. | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | John Wiley and Sons Ltd | es_ES |
dc.subject | biolubricant | es_ES |
dc.subject | cashew apple bagasse | es_ES |
dc.subject | enzymatic immobilization | es_ES |
dc.subject | lignin | es_ES |
dc.subject | lipase | es_ES |
dc.subject | magnetite | es_ES |
dc.title | New nanocomposite made of cashew apple bagasse lignin and Fe3O4 for immobilizing of lipase B from Candida antarctica aiming at esterification | es_ES |
dc.type | Article | es_ES |