Pretreatment of Guinea grass (Panicum maximum) with the ionic liquid 1-ethyl-3-methyl imidazolium acetate for efficient hydrolysis and bioethanol production

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dc.contributor.authorOdorico F.H.
dc.contributor.authorMorandim-Giannetti A.A.
dc.contributor.authorLucarini A.C.
dc.contributor.authorTorres R.B.
dc.date.accessioned2019-08-20T00:12:02Z
dc.date.available2019-08-20T00:12:02Z
dc.date.issued2018
dc.description.abstract© 2018, Springer Science+Business Media B.V., part of Springer Nature.In the present study, we pretreated the plant Guinea grass (Panicum maximum) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [EMIM][OAc] to expose its cellulose fibers. For this, we first determined the composition of Guinea grass, with 6.87 ± 1.21% of ash, 14.33 ± 1.18% of lignin, 70.55 ± 1.15% of holocellulose, 29.9 ± 1.20% of cellulose, and 40.65 ± 1.20% of hemicellulose. After characterizing the material, we determined the IL pretreatment conditions that maximized the enzymatic and acid hydrolysis stages [namely: temperature = 157 °C, reaction time = 30 min, and biomass concentration (relative to total mass) = 14%]. Under these conditions, the enzymatic hydrolysis conversions of glucose and total reducing sugars were respectively 69.8 and 54.2%, determined by enzymatic and DNS methods. The acid hydrolysis was also carried out, and conversions of 57.4 and 27.2% were verified by the enzymatic and DNS methods, respectively. Finally, the hydrolysate obtained after the enzymatic hydrolysis was fermented by the yeast Saccharomyces cerevisiae, and the ethanol yield (81.9%) was determined through gas chromatography.
dc.description.firstpage2997
dc.description.issuenumber5
dc.description.lastpage3009
dc.description.volume25
dc.identifier.citationODORICO, F. H.; GIANNETTI, Andreia de Araujo Morandim; LUCARINI, Adriana Celia; TORRES, Ricardo Belchior. Pretreatment of Guinea grass (Panicum maximum) with the ionic liquid 1-ethyl-3-methyl imidazolium acetate for efficient hydrolysis and bioethanol production. Cellulose, v. 25, p. 2997-3009, 2018.
dc.identifier.doi10.1007/s10570-018-1753-z
dc.identifier.issn0969-0239
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1710
dc.relation.ispartofCellulose
dc.rightsAcesso Restrito
dc.subject.otherlanguageAcid hydrolysis
dc.subject.otherlanguageEnzymatic hydrolysis
dc.subject.otherlanguageIonic liquid pretreatment
dc.subject.otherlanguageLignocellulosic materials
dc.titlePretreatment of Guinea grass (Panicum maximum) with the ionic liquid 1-ethyl-3-methyl imidazolium acetate for efficient hydrolysis and bioethanol production
dc.typeArtigo
fei.scopus.citations21
fei.scopus.eid2-s2.0-85044043479
fei.scopus.subjectAcid hydrolysis
fei.scopus.subjectBio-ethanol production
fei.scopus.subjectGuinea grass
fei.scopus.subjectImidazolium
fei.scopus.subjectIonic liquid pretreatment
fei.scopus.subjectLignocellulosic material
fei.scopus.subjectPanicum maximum
fei.scopus.subjectPre-Treatment
fei.scopus.updated2025-02-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044043479&origin=inward
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