dc.creator | Horst, María Fernanda | |
dc.creator | Rueda, Elsa Haydee | |
dc.creator | Ferreira, María Luján | |
dc.date.accessioned | 2019-07-12T19:41:25Z | |
dc.date.accessioned | 2022-10-15T01:42:12Z | |
dc.date.available | 2019-07-12T19:41:25Z | |
dc.date.available | 2022-10-15T01:42:12Z | |
dc.date.created | 2019-07-12T19:41:25Z | |
dc.date.issued | 2006-05-03 | |
dc.identifier | Horst, María Fernanda; Rueda, Elsa Haydee; Ferreira, María Luján; Activity of magnetite-immobilized catalase in hydrogen peroxide decomposition; Elsevier Science Inc; Enzyme and Microbial Technology; 38; 7; 3-5-2006; 1005-1012 | |
dc.identifier | 0141-0229 | |
dc.identifier | http://hdl.handle.net/11336/79508 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4331186 | |
dc.description.abstract | The present work analyzes the activity in decomposition of H 2O2 using magnetite-immobilized catalase. The support of catalase is a glutaraldehyde-treated magnetite (Fe3O4). The data obtained in the H2O2 decomposition are analyzed. The fitting of the initial rate of the H2O2 decomposition versus hydrogen peroxide concentration data is discussed using a specific program for enzyme kinetics modeling (Leonora). The free catalase from Aspergillus niger (3.5 or 10 U/mL) does not show substrate inactivation up to 0.4 M H2O2. The immobilized catalase at low catalyst concentration shows substrate inhibition. Using 1 mg/mL of supported catalase the predicted maximum activity is higher than in the case of the free catalase at similar catalase concentration, although the optimum temperature is lower (40°C versus 60°C). | |
dc.language | eng | |
dc.publisher | Elsevier Science Inc | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0141022905004059 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.enzmictec.2005.08.035 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | CATALASE | |
dc.subject | ENZYMATIC | |
dc.subject | HYDROGEN PEROXIDE | |
dc.subject | MAGNETITE | |
dc.subject | SUPPORTED CATALASE | |
dc.title | Activity of magnetite-immobilized catalase in hydrogen peroxide decomposition | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |