Cellulosic Ethanol: Improving Cost Efficiency by Coupling Semi-Continuous Fermentation and Simultaneous Saccharification Strategies

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dc.careerEscuela de Ciencias Biológicases
dc.category.authorprincipalen_US
dc.contributor.authorCarvajal Barriga, Enrique Javier
dc.contributor.authorPortero Barahona, Patricia
dc.contributor.correspondingCarvajal Barriga, Enrique Javier
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:46:44Z
dc.date.available2023-11-04T21:46:44Z
dc.date.issued2020-11-15
dc.dedication.authorTCes
dc.description.abstractA novel approach to improve ethanol production from sugarcane bagasse is proposed. Biomass was pretreated with sodium hydroxide, sulfuric, oxalic, and maleic acids (1% w/v) at different temperatures (130–170 ◦C) and times (10–30 min). The pretreatment with NaOH at 160 ◦C for 20 min was found to be the most efficient for further enzymatic saccharification. A semi-continuous fermentation system coupled with a simultaneous saccharification and fermentation strategy was used, attaining fermented liquor every 24 h. The amount of enzymes needed for saccharification was optimized, as well as the production time and ethanol concentration. The process occurred with near to complete depletion of glucose, obtaining ethanol concentrations ranging from 8.36 to 10.79% (v/v). The whole system, at bench scale, showed stability over 30 days, and ease of management and control. This strategy may improve cost efficiency in the production of cellulosic ethanol at industrial scale.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1706348768
dc.id.author1803431640
dc.id.type1
dc.identifier.doihttps://doi.org/10.3390/pr8111459
dc.identifier.issn2227-9717
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/6151
dc.identifier.urihttps://www.mdpi.com/2227-9717/8/11/1459/htm
dc.indexed.databaseScimago Journal Rankes
dc.language.isoen
dc.list.authorsPortero, P., Bastidas, B., Martín-Gil, J., Martín-Ramos, P., Carvajal, E.
dc.magazine.pageRange1-13
dc.magazine.titleProcesseses
dc.magazine.volumeChapter8 (11)
dc.rightsOpenAccessen
dc.statepublisheden_US
dc.subjectBioetanoles
dc.subjectBagazoes
dc.subjectCaña de azúcares
dc.subjectEnzimases
dc.subjectBioetanol
dc.subjectBagazo
dc.subjectCaña de azúcar
dc.subjectEnzimas
dc.titleCellulosic Ethanol: Improving Cost Efficiency by Coupling Semi-Continuous Fermentation and Simultaneous Saccharification Strategiesen_US
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