Bioorganically doped sol-gel materials containing amyloglucosidase activity
| Autor: | Cecilia Savii, Monica Dragomirescu, Gabriela Preda, Adrian Chiriac, Beatrice Vlad-Oros |
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| Rok vydání: | 2006 |
| Předmět: |
Immobilized enzyme
vinyltriacetoxysilane phenyltriethoxysilane amyloglucosidase (AMG) methyltriethoxysilane lcsh:Technology (General) sol-gel Amylase Ceramic Zeolite Sol-gel chemistry.chemical_classification Chromatography biology Chemistry entrapment/deposition Doping Aspergillus niger General Engineering biology.organism_classification entrapment Enzyme visual_art biology.protein visual_art.visual_art_medium lcsh:T1-995 tetraethoxysilane Nuclear chemistry |
| Zdroj: | Acta Periodica Technologica, Vol 2006, Iss 37, Pp 179-186 (2006) |
| ISSN: | 2406-095X 1450-7188 |
| Popis: | Amyloglucosidase (AMG) from Aspergillus niger was encapsulated in various matrices derived from tetraethoxysilane, methyltriethoxysilane, phenyltriethoxysilane and vinyltriacetoxysilane by different methods of immobilization. The immobilized enzyme was prepared by entrapment in two steps, in one-step and entrapment/deposition, respectively. The activities of the immobilized AMG were assayed and compared with that of the native enzyme. The effects of the organosilaneprecursors and their molar ratios, the immobilization method, the inorganic support (white ceramic, red ceramic, purolite, alumina, TiO2, celite, zeolite) and enzyme loading upon the immobilized enzyme activity were tested. The efficiency of the sol-gel biocomposites can be improved through combination of the fundamental immobilization techniques and selection of the precursors. |
| Databáze: | OpenAIRE |
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