Per citar aquest document: http://ddd.uab.cat/record/163769
Production of lipases by solid state fermentation using vegetable oil-refining wastes
Santis Navarro, Angélica María (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Barrena Gómez, Raquel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Sánchez Ferrer, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)

Data: 2011
Resum: Lipases were produced by a microbial consortium derived from a mixture of wastewater sludges in a medium containing solid industrial wastes rich in fats, under thermophilic conditions (temperature higher than 45 °C for 20 days) in 4. 5-L reactors. The lipases were extracted from the solid medium using 100 mM Tris–HCl, pH 8. 0 and a cationic surfactant agent (cetyltrimethylammonium chloride). Different doses of surfactant and buffer were tested according to a full factorial experimental design. The extracted lipases were most active at 61–65 °C and at pH 7. 7–9. For the solid samples, the lipolytic activity reached up to 120,000 UA/g of dry matter. These values are considerably higher than those previously reported in literature for solid-state fermentation and highlight the possibility to work with the solid wastes as effective biocatalysts.
Nota: Número d'acord de subvenció MICINN/CTM2009-14073-C02-01
Drets: Tots els drets reservats
Llengua: Anglès
Document: article ; recerca ; submittedVersion
Matèria: Solid-state fermentation ; Lipase ; Thermostability ; Organic wastes ; Sewage sludge
Publicat a: Bioresource technology, Vol. 102, Issue 21 (Nov. 2011) , p. 10080–10084, ISSN 0960-8524

DOI: 10.1016/j.biortech.2011.08.062


Pre-print
14 p, 2.5 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Enginyeries > Grup de Recerca en Compostatge (GICOM)
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2016-09-12, darrera modificació el 2016-10-03



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