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dc.contributor.authorFírvida Plaza, Iria
dc.contributor.authorGarcía Del Río, Pablo
dc.contributor.authorGullón Estévez, Patricia
dc.contributor.authorGullón Estévez, Beatriz
dc.contributor.authorGarrote Velasco, Gil 
dc.contributor.authorRomaní Pérez, Aloia
dc.date.accessioned2021-04-09T15:10:40Z
dc.date.available2021-04-09T15:10:40Z
dc.date.issued2021-01-15
dc.identifier.citationAgronomy, 11(1): 155 (2021)spa
dc.identifier.issn20734395
dc.identifier.urihttp://hdl.handle.net/11093/1940
dc.description.abstractIn this work, a delignification process, using lime (Ca(OH)2) as an alternative alkali, was evaluated to improve enzymatic saccharification of corn stover cellulose, with the final goal of obtaining second-generation bioethanol. For that, an experimental design was conducted in order to assay the effect of temperature, lime loading, and time on the corn stover fractionation and enzymatic susceptibility of cellulose. Under conditions evaluated, lime pretreatment was selective for the recovery of cellulose (average of 91%) and xylan (average of 75.3%) in the solid phase. In addition, operating in mild conditions, a delignification up to 40% was also attained. On the other hand, a maximal cellulose-to-glucose conversion (CGCMAX) of 89.5% was achieved using the solid, resulting from the treatment carried out at 90 °C for 5 h and lime loading of 0.4 g of Ca(OH)2/g of corn stover. Finally, under selected conditions of pretreatment, 28.7 g/L (or 3.6% v/v) of bioethanol was produced (corresponding to 72.4% of ethanol conversion) by simultaneous saccharification and fermentation. Hence, the process, based on an alternative alkali proposed in this work, allowed the successful production of biofuel from the important and abundant agro-industrial residue of corn stover.spa
dc.description.sponsorshipMinisterio de Economía y Competitividad | Ref. PID2019-110031RB-I00spa
dc.description.sponsorshipXunta de Galicia | Ref. ED431C 2017/62-GRCspa
dc.language.isoengspa
dc.publisherAgronomyspa
dc.rightsCreative Commons Attribution (CC BY) license
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleAlternative lime pretreatment of corn stover for second-generation bioethanol productionspa
dc.typearticlespa
dc.rights.accessRightsopenAccessspa
dc.identifier.doi10.3390/agronomy11010155
dc.identifier.editorhttps://www.mdpi.com/2073-4395/11/1/155spa
dc.publisher.departamentoEnxeñaría químicaspa
dc.publisher.grupoinvestigacionPranta, Solo e Aproveitamento de Subproductosspa
dc.subject.unesco3302.90 Ingeniería Bioquímicaspa
dc.subject.unesco3308.02 Residuos Industrialesspa
dc.subject.unesco3303.03 Procesos Químicosspa
dc.date.updated2021-04-09T09:40:32Z


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