Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/85041
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dc.contributor.authorKruyeniski, Julia-
dc.contributor.authorFerreira, Paulo J. T.-
dc.contributor.authorVideira Sousa Carvalho, Maria da Graça-
dc.contributor.authorVallejos, María E.-
dc.contributor.authorFelissia, Fernando E.-
dc.contributor.authorArea, María C.-
dc.date.accessioned2019-03-04T12:35:04Z-
dc.date.available2019-03-04T12:35:04Z-
dc.date.issued2019-01-12-
dc.identifier.issn0926-6690pt
dc.identifier.urihttp://hdl.handle.net/10316/85041-
dc.description.abstractThe aim of this work was to evaluate the effect of different pretreatments applied to industrial slash pine sawdust (Pinus elliottii) on its enzymatic hydrolysis. NREL laboratory analytical procedures for standard biomass analysis were used to characterize the thirty one fibrous materials produced. Eight pretreated materials were selected considering both the chemical composition and the enzymatic hydrolysis yield to further evaluate crystallinity and porosity, determined by X-ray diffraction and thermoporosimetry, respectively. Diluted acid, steam explosion, and slight alkali treatments revealed to be not effective to enhance enzymatic hydrolysis of resinous pines since a maximum yield value of only 25% was achieved. On the contrary, strong alkali treatments promoted the lignin removal, thus increasing the accessibility of the material for enzymatic hydrolysis. In accordance, the highest values of the cellulose crystallinity (about 75–76%) were also obtained. No correlation was found between the porosity and the enzymatic hydrolysis yield. It was concluded that to enhance enzymatic hydrolysis the lignin content of the pretreated material should below. As for the hemicelluloses content, only its interaction with the lignin content is significant, as revealed by the regression model obtained.pt
dc.language.isoengpt
dc.publisherElsevierpt
dc.rightsembargoedAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectPretreatmentspt
dc.subjectDelignificationpt
dc.subjectEnzymatic hydrolysispt
dc.subjectPine sawdustpt
dc.subjectCrystallinitypt
dc.subjectPorositypt
dc.titlePhysical and chemical characteristics of pretreated slash pine sawdust influence its enzymatic hydrolysispt
dc.typearticle-
degois.publication.firstPage528pt
degois.publication.lastPage536pt
degois.publication.issue130pt
degois.publication.titleIndustrial Crops and Productspt
dc.relation.publisherversionhttps://doi.org/10.1016/j.indcrop.2018.12.075pt
dc.peerreviewedyespt
dc.identifier.doi10.1016/j.indcrop.2018.12.075pt
dc.date.embargo2020-01-12*
dc.date.periodoembargo365pt
rcaap.embargofctAuthor's post-print on open access repository after an embargo period of between 12 months and 48 monthspt
uc.date.periodoEmbargo365-
item.fulltextCom Texto completo-
item.languageiso639-1en-
item.grantfulltextopen-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitCIEPQPF – Chemical Process Engineering and Forest Products Research Centre-
crisitem.author.orcid0000-0002-4503-6811-
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais
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