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Título: Saccharification of microalgae biomass obtained from wastewater treatment by enzymatic hydrolysis. Effect of alkaline-peroxide pretreatment
Autor: Martin Juarez, Judit
Lorenzo Hernando, Ana
Blanco, Saul
Muñoz Torre, Raúl
Bolado Rodríguez, Silvia
Año del Documento: 2016
Editorial: Elsevier
Documento Fuente: Bioresource Technology. 218: 265-271.
Resumen: An enzymatic method for the carbohydrate hydrolysis of different microalgae biomass cultivated in domestic (DWB) and pig manure (PMWB) wastewaters, at different storage conditions (fresh, freeze-dried and reconstituted), was evaluated. The DWB provided sugars yields between 40 and 63%, although low xylose yields (< 23.5%). Approximately 2% of this biomass was converted to byproducts as succinic, acetic and formic acids. For PMWB, a high fraction of the sugars (up to 87%) was extracted, but mainly converted into acetic, butyric and formic acids, which was attributed to the bacterial action. In addition, the performance of an alkaline-peroxide pretreatment, conducted for 1 hour, 50ºC and H2O2 concentrations from 1 to 7.5% (w/w), was essayed. The hydrolysis of pretreated microalgae supported a wide range of sugars extraction for DWB (55-90%), and 100% for PMWB. Nevertheless, a large fraction of these sugars (~30% for DWB and 100% for PMWB) was transformed to byproducts.
Palabras Clave: Enzymatic hydrolysis
Alkaline-peroxide pretreatment
Revisión por Pares: SI
Patrocinador: INIA MICINN Junta de Castilla y León
Idioma: eng
Derechos: info:eu-repo/semantics/openAccess
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