Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/34281
Registro completo de metadados
Campo DCValorIdioma
dc.creatorSilva, Caio de Oliveira Gorgulho-
dc.creatorRibeiro, José Antonio de Aquino-
dc.creatorSouto, Augusto Lopes-
dc.creatorAbdelnur, Patrícia Verardi-
dc.creatorBatista, Luís Roberto-
dc.creatorRodrigues, Kelly Assis-
dc.creatorParachin, Nádia Skorupa-
dc.creatorFerreira Filho, Edivaldo Ximenes-
dc.date.accessioned2019-05-16T15:56:19Z-
dc.date.available2019-05-16T15:56:19Z-
dc.date.issued2018-06-
dc.identifier.citationSILVA, C. de O. G. et al. Sugarcane bagasse hydrothermal pretreatment liquors as suitable carbon sources for hemicellulase production by Aspergillus niger. BioEnergy Research, [S.l.], v. 11, n. 2, p. 316–329, June 2018.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1007/s12155-018-9898-zpt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/34281-
dc.description.abstractThe aim of this study was to valorize the hemicellulose-rich liquid fraction (liquor) arising from hydrothermal pretreatment of sugarcane bagasse (SCB) through its utilization as an unconventional, soluble carbon source for the production of hemicellulases, namely xylanases and α-L-arabinofuranosidases (ABFases), by Aspergillus niger DCFS11. Through the use of factorial design, pretreatment conditions producing liquors optimized for either early- or late-phase enzyme production were identified. Subsequent deep characterization of liquor components using liquid chromatography and mass spectrometry was performed to identify compounds likely responsible for hemicellulase induction. SCB liquors arising from various pretreatment configurations induced up to 2- and 8.6-fold higher xylanase and ABFase production, respectively, by A. niger DCFS11 than raw SCB substrate owing to the strong inducing potential of arabinosylated xylooligosaccharides and free arabinose solubilized during pretreatment. Notably, unlike the severe pretreatment conditions required for maximum cellulose saccharification and ethanol yields during biomass conversion, low severity and low biomass loading are required if enzyme production from liquor is desired at early-phase growth with no additional detoxification steps. This suggests that for effective application in biorefineries, separate or multi-step processes would be required to optimize both hemicellulase production by A. niger DCFS11 and cellulose digestion. This work demonstrates the potential of hydrothermal pretreatment of lignocellulosic substrates as a tool to increase the production of enzymes by filamentous fungi.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceBioEnergy Researchpt_BR
dc.subjectHydrothermal pretreatmentpt_BR
dc.subjectLiquorpt_BR
dc.subjectSugarcane bagassept_BR
dc.subjectAspergillus nigerpt_BR
dc.subjectXylanasept_BR
dc.subjectα-L-Arabinofuranosidasept_BR
dc.titleSugarcane bagasse hydrothermal pretreatment liquors as suitable carbon sources for hemicellulase production by Aspergillus nigerpt_BR
dc.typeArtigopt_BR
Aparece nas coleções:DCA - Artigos publicados em periódicos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.