Development of a biocomposite based on alginate/gelatin crosslinked with genipin for β-galactosidase immobilization: Performance and characteristics
In this work, we studied the development of a biocomposite formulated with alginate and gelatin, crosslinked with genipin for application as support for β-galactosidase immobilization. Also, the biocomposites with the immobilized enzyme were characterized by thermal analyses and SAXS (size, density,...
| Authors: | , , , , , |
|---|---|
| Format: | article |
| Status: | Published version |
| Publication Date: | 2022 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/209624 |
| Online Access: | http://hdl.handle.net/11336/209624 |
| Access Level: | Open access |
| Keyword: | ASPERGILLUS ORYZAE GELATIN GENIPIN IMMOBILIZATION LACTOSE HYDROLYSIS SODIUM ALGINATE https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Summary: | In this work, we studied the development of a biocomposite formulated with alginate and gelatin, crosslinked with genipin for application as support for β-galactosidase immobilization. Also, the biocomposites with the immobilized enzyme were characterized by thermal analyses and SAXS (size, density, and interconnectivity of alginate rods) for a detailed analysis of the microstructure, as well as the thermal and operational stabilities of the enzyme. The structural modifications of the biocomposite determined by SAXS demonstrate that the addition of both genipin and enzyme produced a significant reduction in size and density of the Ca(II)-alginate rods. Immobilized β-galactosidase could be stored for 175 days under refrigeration maintaining 80% of its initial activity. Moreover, 90% of its relative activity was kept after 11 reuses in a batch process of lactose hydrolysis. Thus, the biocomposite proved to be effective as support for enzyme immobilization. |
|---|