Maximizing Bioethanol Production from Eucalyptus globulus Using Steam Explosion Pretreatment: A Multifactorial Design and Fermenter Development for High Solid Loads

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dc.contributor.authorTroncoso-Ortega, Eduardo
dc.contributor.authorValenzuela, Roberto
dc.contributor.authorReyes-Contreras, Pablo
dc.contributor.authorCastano-Rivera, Patricia
dc.contributor.authorSchiappacasse, L-Nicolas
dc.contributor.authorParra, Carolina
dc.date.accessioned2025-01-20T17:23:34Z
dc.date.available2025-01-20T17:23:34Z
dc.date.issued2023
dc.description.abstractSteam explosion pretreatment is suitable for bioethanol production from Eucalyptus globulus wood. Multifactorial experiment designs were used to find the optimal temperature and residence time required to obtain the best glucose yield from the enzymatic hydrolysis of pretreated materials. The chemical composition, crystallinity index, morphology and polymerization degree of the pretreated materials were correlated with enzymatic accessibility. Simultaneous saccharification and fermentation (SSF) using a fed-batch strategy was applied to three different laboratory-scale fermenters. The optimization of the pretreatment was obtained at 208 degrees C and 11 min. However, the enzymatic hydrolysis performance did not show significant differences from the material obtained at 196 degrees C and 9.5 min, which was determined to be the real optimum, owing to its lower energy requirement. The vertical fermenter with type "G" blades and the horizontal fermenter with helical blades were both highly efficient for reaching ethanol yields close to 90% based on dry wood, and ethanol concentrations close to 9.0% v/v.
dc.fuente.origenWOS
dc.identifier.doi10.3390/fermentation9110965
dc.identifier.eissn2311-5637
dc.identifier.urihttps://doi.org/10.3390/fermentation9110965
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91505
dc.identifier.wosidWOS:001109565600001
dc.issue.numero11
dc.language.isoen
dc.revistaFermentation-basel
dc.rightsacceso restringido
dc.subjecthigh-concentration bioethanol
dc.subjectresponse surface
dc.subjectsimultaneous saccharification and fermentation
dc.subjectfed batch
dc.subjectfermenters design
dc.subjectsteam explosion pretreatment
dc.subject.ods12 Responsible Consumption and Production
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa12 Producción y consumo responsable
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleMaximizing Bioethanol Production from Eucalyptus globulus Using Steam Explosion Pretreatment: A Multifactorial Design and Fermenter Development for High Solid Loads
dc.typeartículo
dc.volumen9
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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