Evaluation of oil transesterification in a packed-bed reactor containing lipase immobilized in starch–alginate jet cutting beads

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorAlmeida, Francisco Lucas Chaves-
Autor(es): dc.creatorSampaio, Klicia Araujo-
Autor(es): dc.creatorPrata, Ana Silvia-
Autor(es): dc.creatorForte, Marcus Bruno Soares-
Data de aceite: dc.date.accessioned2025-08-21T18:30:06Z-
Data de disponibilização: dc.date.available2025-08-21T18:30:06Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/bbb.2678-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/307251-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/307251-
Descrição: dc.descriptionThere has been a growing interest in ecofriendly enzymatic processes. However, enzyme solubility limits the application of many biocatalysts in continuous systems, requiring the development of cost-effective strategies for enzyme immobilization. Based on this premise, this study investigated the application of lipase immobilized in starch–alginate beads for oil transesterification in a tubular reactor. An economical derivative was produced by immobilizing Eversa Transform 2.0 in 50:50 (w/w) starch–alginate beads using the jet-cutting technique. The biocatalyst had a particle size of about 500 μm and activity of 138.67 ± 18.53 U g−1. X-ray photoelectron spectroscopy showed nitrogen content ranging from 6.38% to 7.29%, with uniform distribution of lipase throughout the beads. Nitrogen isotherms were characteristic of mesoporous materials, with an average pore diameter of 48.09 Å and low surface area (0.69 m2 g−1). A face-centered central composite design was used to study soybean oil transesterification. In the best four runs, the process achieved a mean triglyceride conversion of 45%. High ester productivity levels (2.05 × 10−2% ester g−1 biocatalyst min−1 or 1.5 × 10−4% ester U−1 min−1) were obtained. Biocatalyst reuse led to a twofold increase in ester concentration (14.57% vs 7.7%). These findings confirm the successful development of a low-cost biocatalyst suitable for use in continuous reactions.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInterinstitutional Graduate Program in Bioenergy (USP/UNICAMP/UNESP), São Paulo-
Descrição: dc.descriptionBioprocess and Metabolic Engineering Laboratory Department of Food Engineering and Technology School of Food Engineering University of Campinas, São Paulo-
Descrição: dc.descriptionLaboratory of Food Innovation Department of Food Engineering and Technology Faculty of Food Engineering University of Campinas, São Paulo-
Descrição: dc.descriptionLaboratory of Extraction Applied Thermodynamics and Equilibrium (ExTrAE) Department of Food Engineering and Technology Faculty of Food Engineering University of Campinas, São Paulo-
Descrição: dc.descriptionInterinstitutional Graduate Program in Bioenergy (USP/UNICAMP/UNESP), São Paulo-
Formato: dc.format2005-2014-
Idioma: dc.languageen-
Relação: dc.relationBiofuels, Bioproducts and Biorefining-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbiodiesel-
Palavras-chave: dc.subjectcontinuous process-
Palavras-chave: dc.subjectEversa transform 2.0-
Palavras-chave: dc.subjectjet cutting-
Palavras-chave: dc.subjectlipase immobilization-
Título: dc.titleEvaluation of oil transesterification in a packed-bed reactor containing lipase immobilized in starch–alginate jet cutting beads-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.