| Full text | |
| Author(s): |
Garcia, Leonardo Abreu
;
Morales, Sergio Andres Villalba
;
Xavier, Michelle da Cunha Abreu
;
Lopes, Melina Savioli
;
Silva, Elda Sabino da
;
Maiorano, Alfredo Eduardo
;
Gunnewiek, Rodolfo Foster Klein
;
Perna, Rafael Firmani
Total Authors: 8
|
| Document type: | Journal article |
| Source: | MATERIALS TODAY COMMUNICATIONS; v. 31, p. 8-pg., 2022-06-01. |
| Abstract | |
A new support for fructosyltransferase (FTase, E.C. 2.4.1.9) immobilization was obtained by a facile niobium deposition on powdered silica-gel, using a simple polymeric solution-based method, aiming to obtain a highly active biocatalyst for the production of fructooligosaccharides (FOS). The support was characterized by XRD, SEM, N-2 physisorption, FTIR, TGA and DSC analyses. The support showed orthorhombic and monoclinic Nb2O5 phases homogeneously distributed along the sample. The thermal decomposition of the organics yielded very fine particle sizes of a mixture of silica-niobia material with specific surface area of approximately 127 m(2) g(-1). FTIR analyses confirmed the presence of the immobilized enzyme. The immobilization yield and recovered activity of the enzyme were about 57.7% and 87.8%, respectively. It suggests a significant improvement in FTase adsorption on silica due to the addition of niobium and a high applicability of silica-niobia supports for FTase immobilization aiming at FOS production. (AU) | |
| FAPESP's process: | 17/13769-1 - MULTIFERROIC AND FERROELECTRIC MATERIALS FOR ENERGY CONVERTERS:Synthesis, Properties, Phenomenology and Applications. |
| Grantee: | José Antonio Eiras |
| Support Opportunities: | Research Projects - Thematic Grants |