Pressurized pretreatment and simultaneous saccharification and fermentation with in situ detoxification to increase bioethanol production from green coconut fibers

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dc.contributor.authorSouza, Domingos Fabiano de Santana
dc.contributor.authorNogueira, Cleitiane da Costa
dc.contributor.authorPadilha, Carlos Eduardo de Araújo
dc.contributor.authorJesus, Anderson Alles de
dc.contributor.authorAssis, Cristiane Fernandes de
dc.contributor.authorSousa Junior, Francisco Canindé de
dc.contributor.authorSantos, Everaldo Silvino dos
dc.date.accessioned2021-11-30T16:17:55Z
dc.date.available2021-11-30T16:17:55Z
dc.date.issued2019-04
dc.description.resumoIn this study, we investigated four conventional pretreatments under pressurized conditions, as well as in situ detoxification using polyethylene glycol (PEG 400), for the simultaneous saccharification and fermentation (SSF) of green coconut fibers. The highest fermentable sugar production (22.05% g/g untreated fiber) was reached with pressurized dilute alkaline pretreatment. In the SSF, the addition of PEG favored ethanol production compared to that in experiments without the polymer, reaching a maximum value of 7.87 g/L at a liquor content of 50% v/v for the pressurized water pretreatment. After lignin recovery by acid precipitation, the liquors had interesting antioxidant properties, similar to those of fruit extracts. The proposed pressurized water pretreatment could be an advantageous choice because it can be performed at mild temperatures (70 °C) and high solid loadings (26.67% w/v) and achieves a high mass yield (72.84% w/w) without the addition of a chemical agent. Furthermore, the liquor can be used in the SSF, reducing the water consumption and number of steps in the cellulosic ethanol processpt_BR
dc.identifier.citationNOGUEIRA, Cleitiane da Costa; PADILHA, Carlos Eduardo de Araújo; JESUS, Anderson Alles de; SOUZA, Domingos Fabiano de Santana; ASSIS, Cristiane Fernandes de; SOUSA JUNIOR, Francisco Canindé de; SANTOS, Everaldo Silvino dos. Pressurized pretreatment and simultaneous saccharification and fermentation with in situ detoxification to increase bioethanol production from green coconut fibers. Industrial Crops And Products, [S.L.], v. 130, p. 259-266, abr. 2019. Elsevier BV. http://dx.doi.org/10.1016/j.indcrop.2018.12.091. Disponível em <https://www.sciencedirect.com/science/article/abs/pii/S0926669018311531?via%3Dihub>. Acesso em 05 nov. 2021.pt_BR
dc.identifier.doi10.1016/j.indcrop.2018.12.091
dc.identifier.issn0926-6690
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45105
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.subjectLignocellulosic materialpt_BR
dc.subjectPolyethylene glycolpt_BR
dc.subjectBiorefinerypt_BR
dc.subjectEnzymatic hydrolysispt_BR
dc.titlePressurized pretreatment and simultaneous saccharification and fermentation with in situ detoxification to increase bioethanol production from green coconut fiberspt_BR
dc.typearticlept_BR

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