Fermentação alcoólica de hidrolisado hemicelulósico de torta de girassol por Galactomyces geotrichum UFVJM-R10 e Candida akabanensis UFVJM-R131

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dc.contributor.authorMatos, Jéssica Pereira de
dc.contributor.authorSouza, Kelton Rodrigues de
dc.contributor.authorSantos, Alexandre Soares dos
dc.contributor.authorPantoja, Lílian de Araújo
dc.contributor.institutionUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
dc.date.accessioned2021-06-01T18:09:08Z
dc.date.available2021-06-01T18:09:08Z
dc.date.issued2018-Jan
dc.description.abstractsThe use of the hemicellulosic fraction of plants for the production of second generation bioethanol depends on microorganisms capable to ferment pentoses. Two yeast strains habile to xylose fermenting in synthetic medium, Candida akabanensis UFVJM-R131 and Galactomyces geotrichum UFVJM-R10, not yet registered in the literature for the production of bioethanol, were evaluated here in the alcoholic fermentation of the hemicellulosic hydrolyzate from sunflower cake. The biomass hydrolysis was performed by 38 minutes at 120 °C / 1 atm with 6% H2SO4 solution and solid / liquid ratio of 1:3.2. Chromatographic characterization of the hemicellulosic hydrolyzate showed the presence of glucose (7.57 g L-1), xylose (19.53 g L-1) and arabinose (8.85 g L-1), besides 5-hydroxymethylfurfural (0.71 g L-1), furfural (0.05 g L-1) and acetic acid (5.27 g L-1). Both yeasts were able to produce ethanol from the acid hydrolyzate from sunflower cake. The fermentation carried out with G. geotrichum UFVJM-R10 and C. akabanensis UFVJM-R131 presented YP/S values of 0.29 and 0.27 g ethanol g-1sugars, respectively. The amounts of the inhibitors identified in the hydrolyzate did not affect the efficiency of the alcoholic fermentation. The supplementation of the hydrolyzate with nitrogen and mineral sources increased the rate of consumption of xylose and arabinose.eng
dc.identifier.citationMATOS, Jéssica Pereira de; SOUZA, Kelton Rodrigues de; SANTOS, Alexandre Soares dos; PANTOJA, Lílian de Araújo. Fermentação alcoólica de hidrolisado hemicelulósico de torta de girassol por Galactomyces geotrichum UFVJM-R10 E Candida akabanensis UFVJM-R131. Química Nova, v. 41, n. 1, p. 23-29, 2018. Disponível em: http://acervo.ufvjm.edu.br/jspui/handle/1/2556. Acesso em: 31 maio 2021.pt_BR
dc.identifier.doihttps://doi.org/10.21577/0100-4042.20170146
dc.identifier.issn1678-7064
dc.identifier.scieloS0100-40422018000100023-scl
dc.identifier.urihttps://repositorio.ufvjm.edu.br/items/eb53d242-ebce-4a35-9ab8-8184ba4f0249
dc.language.isopt_BR
dc.publisherSociedade Brasileira de Química
dc.relation.ispartofQuímica Nova
dc.rights.accessRightsAcesso aberto
dc.rights.creativec"This is an open-access article distributed under the terms of the Creative Commons Attribution License" (CC BY)eng
dc.sourceSciELO
dc.subject.keywordBioethanoleng
dc.subject.keywordHemicelluloseeng
dc.subject.keywordSecond generation ethanoleng
dc.subject.keywordPentoseseng
dc.subject.keywordXylose.eng
dc.titleFermentação alcoólica de hidrolisado hemicelulósico de torta de girassol por Galactomyces geotrichum UFVJM-R10 e Candida akabanensis UFVJM-R131pt_BR
dc.typeArtigopt_BR

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