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

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datacite.alternateIdentifier.citationFERMENTATION-BASEL,Vol.9,2023
datacite.alternateIdentifier.doi10.3390/fermentation9110965
datacite.creatorTroncoso Ortega, Eduardo
datacite.creatorValenzuela, Roberto
datacite.creatorReyes Contreras, Pablo
datacite.creatorCastano Rivera, Patricia
datacite.creatorSchiappacasse, L Nicolas
datacite.creatorParra, Carolina
datacite.date2023
datacite.subject.englishhigh-concentration bioethanol
datacite.subject.englishresponse surface
datacite.subject.englishsimultaneous saccharification and fermentation
datacite.subject.englishfed batch
datacite.subject.englishfermenters design
datacite.subject.englishsteam explosion pretreatment
datacite.titleMaximizing Bioethanol Production from Eucalyptus globulus Using Steam Explosion Pretreatment: A Multifactorial Design and Fermenter Development for High Solid Loads
dc.date.accessioned2024-05-27T18:27:51Z
dc.date.available2024-05-27T18:27:51Z
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.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5871
dc.language.isoen
dc.publisherMDPI
dc.sourceFERMENTATION-BASEL
oaire.resourceTypeArticle
uct.indizacionSCI
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