Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/34504
Título: Development of a bioreactor based on lipase entrapped in a monolithic cryogel for esterification and interesterification reactions
Título(s) alternativo(s): Desarollo de un biorreactor compuesto por lipasa atrapada em un criogel monolítico para las reacciones de esterificación e interesterificación
Palavras-chave: Cryogel
Lipase
Entrapment
Butyl butyrate
Tripalmitin
Aprisionamento
Butirato de butilo
Tripalmitina
Data do documento: 2018
Editor: Universidad Autónoma Metropolitana
Citação: VERÍSSIMO, L. A. A. et al. Development of a bioreactor based on lipase entrapped in a monolithic cryogel for esterification and interesterification reactions. Revista Mexicana de Ingeniería Química, [S. l.], v. 17, n. 1, p. 177-188, 2018.
Resumo: In this work, it was developed novel bioreactor consisting of Aspergillus niger lipase (ANL) entrapped in a polyacrylamide-based supermacroporous monolithic cryogel. Bioreactor performance in catalyzing the flavor ester butyl butyrate was optimized as a function of temperature (°C), substrate molar ratio (butyric acid: n-butanol) and added water (% (v/v)). The bioreactor was also applied to interesterification reactions. The maximum esterification yield (46%) for butyl butyrate synthesis was found at 40 °C, with a butyric acid:n-butanol molar ratio of 1:1.43 and added water of 65% (v/v). The bioreactor proved to be reusable with four consecutive reuses in the esterification reaction, with a residual esterification yield of 64.6% and volumetric activity of 31.6 mmol/mL·h. A high interesterification yield (17.35% in 24 h) was achieved when the substrate concentrations of tripalmitin and triolein were both 15 mmol/L, 35% added water (v/v) and temperature of 40 °C. These results showed that the bioreactor is a promising biocatalyst for biotechnological applications.
URI: http://repositorio.ufla.br/jspui/handle/1/34504
Aparece nas coleções:DCA - Artigos publicados em periódicos



Este item está licenciada sob uma Licença Creative Commons Creative Commons