Valorization of green coconut fibre: use of the black liquor of organolsolv pretreatment for ethanol production and the washing water for production of rhamnolipids by pseudomonas aeruginosa ATCC 27583

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dc.contributor.authorSouza, Domingos Fabiano de Santana
dc.contributor.authorPadilha, Carlos Eduardo de Araújo
dc.contributor.authorNogueira, Cleitiane da Costa
dc.contributor.authorOliveira, Jackson Araújo de
dc.contributor.authorSantos, Everaldo Silvino dos
dc.date.accessioned2021-12-03T17:53:17Z
dc.date.available2021-12-03T17:53:17Z
dc.date.issued2019-11
dc.description.resumoThe present study proposes the production of ethanol, lignin and rhamnolipids from the valorization scheme of green coconut fibre (GCF) and glycerol. As expected, all pretreatments using 80% (w/w) glycerol and 1% (w/w) sulfuric acid promoted high delignification (> 60%) and good cellulose enrichment (> 50% w/w). The reuse of black liquor in the pretreatments apparently did not affect the glucose release (48.36–49.96 g/L) or the fermentability (22.62–29.64 g/L) of pretreated GCF at 20% (w/v) solid loading. Structural differences between recovered lignin from glycerol-based organosolv pretreatment and alkaline lignin were observed after spectroscopy and thermal stability analyses. In addition, the lignin precipitation water and washing water from the glycerol-based pretreatments of GCF were used in culture media preparation for Pseudomonas aeruginosa ATCC 27583. The production of rhamnolipids varied in the range of 0.57–1.25 g/L and presented greater emulsifying capacity than the rhamnolipids obtained from pure glycerol. Therefore, the methodology described in this study provides an unusual method for obtaining value-added products from organosolv pretreatment of lignocellulosic biomassespt_BR
dc.identifier.citationPADILHA, Carlos Eduardo de Araújo; NOGUEIRA, Cleitiane da Costa; SOUZA, Domingos Fabiano de Santana; OLIVEIRA, Jackson Araújo de; SANTOS, Everaldo Silvino dos. Valorization of green coconut fibre: use of the black liquor of organolsolv pretreatment for ethanol production and the washing water for production of rhamnolipids by pseudomonas aeruginosa atcc 27583. Industrial Crops And Products, [S.L.], v. 140, p. 111604, nov. 2019. Elsevier BV. http://dx.doi.org/10.1016/j.indcrop.2019.111604. Disponível em <https://www.sciencedirect.com/science/article/abs/pii/S0926669019306144?via%3Dihub> Acesso em 05 nov. 2021.pt_BR
dc.identifier.doi10.1016/j.indcrop.2019.111604
dc.identifier.issn0926-6690
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45163
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.subjectBiomasspt_BR
dc.subjectEnzymatic hydrolysispt_BR
dc.subjectLiquor recyclingpt_BR
dc.subjectReusept_BR
dc.subjectBiosurfactantpt_BR
dc.subjectLigninpt_BR
dc.titleValorization of green coconut fibre: use of the black liquor of organolsolv pretreatment for ethanol production and the washing water for production of rhamnolipids by pseudomonas aeruginosa ATCC 27583pt_BR
dc.typearticlept_BR

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