Optimización de la extracción alcalina de la poda de olivo
Archivos
NO SE HA AUTORIZADO la consulta de los documentos asociados
Fecha
2024-01-18
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Jaén: Universidad de Jaén
Resumen
El presente trabajo tiene como objetivo someter la poda de olivo a una extracción en medio alcalino para reducir la concentración de extractivos. Se estudia para ello la influencia de la concentración de hidróxido sódico, la temperatura y el tiempo de extracción mediante 17 experimentos obtenidos de acuerdo con un diseño estadístico de experimentos Box-Benhken empleando la metodología de superficie de respuesta.
- Temperatura (120oC-130oC)
- Concentración de NaOH (0,5%-2% p/V)
- Tiempo (30-90 min)
Finalizada esta etapa, se procede a la caracterización de los licores obtenidos en las diferentes condiciones de
extracción ensayadas y el contenido en extractivos de los sólidos extraídos de acuerdo con la metodología NREL A continuación, se somete la poda extraída, en condiciones óptimas (110oC, 1.4% NaOH y 30 min), a un
pretratamiento con ácido sulfúrico diluido en condiciones previamente optimizadas por el grupo de investigación en el que se enmarca este Trabajo Fin de Máster (164oC, 0,9% H2SO4 y 10 min). Finalmente, se caracterizó el sólido pretratado y el líquido prehidrolizado.
The present work aims to optimize the alkaline extraction of olive tree biomass to reduce its extractive content. The influence of the sodium hydroxide concentration, the temperature and the time of extraction were studied by means of 17 experiments obtained according to a statistical design of Box-Benhken experiments using the response surface methodology. - Temperature (120 ° C-130 ° C) - Concentration of NaOH (0.5%-2% w/v) - Time (30-90 min) After this stage, the liquors obtained at the different extraction conditions were characterized. Likewise, the extractive content of the solids extracted was determined according to the NREL methodology. Then, the extracted olive tree biomass (110 °C, 1.4% NaOH and 30 min) is pretreated with dilute sulfuric acid under conditions previously optimized by the research group in which this Master's Thesis is developed 164 °C, 0.9% H2SO4 and 10 min). Finally, the resulting pretreated solid and prehydrolysate were characterized.
The present work aims to optimize the alkaline extraction of olive tree biomass to reduce its extractive content. The influence of the sodium hydroxide concentration, the temperature and the time of extraction were studied by means of 17 experiments obtained according to a statistical design of Box-Benhken experiments using the response surface methodology. - Temperature (120 ° C-130 ° C) - Concentration of NaOH (0.5%-2% w/v) - Time (30-90 min) After this stage, the liquors obtained at the different extraction conditions were characterized. Likewise, the extractive content of the solids extracted was determined according to the NREL methodology. Then, the extracted olive tree biomass (110 °C, 1.4% NaOH and 30 min) is pretreated with dilute sulfuric acid under conditions previously optimized by the research group in which this Master's Thesis is developed 164 °C, 0.9% H2SO4 and 10 min). Finally, the resulting pretreated solid and prehydrolysate were characterized.