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dc.contributor.authorEgüés Artola, Itziar
dc.contributor.authorSánchez Agra, Cristina
dc.contributor.authorMondragón Egaña, Iñaki Bixintxo
dc.contributor.authorLabidi, Jalel
dc.date.accessioned2024-02-08T10:22:31Z
dc.date.available2024-02-08T10:22:31Z
dc.date.issued2012
dc.identifier.citationBioresource Technology 103(1) : 239-248 (2012)
dc.identifier.issn0960-8524
dc.identifier.urihttp://hdl.handle.net/10810/65271
dc.description.abstract[EN]A study of the potential of autohydrolysis and alkaline extraction processes from corn stalks was performed for high purity hemicellulose extraction. The influence of process parameters on the purity of obtained hemicelluloses was analyzed. An experimental design was developed for the autohydrolysis treatments to determine the optimal conditions to solubilize the hemicelluloses with lowest content in contaminants. On the other hand, alkaline extraction, including raw material pretreatment (dewaxing and delignification step) was carried out analyzing the effectiveness of this processes for maximum pure hemicellulose recovery. The maximum yield (54% of the raw material hemicelluloses) and the best physicochemical properties (highest hemicellulose content free of lignin) were obtained with these pretreatments in alkaline extraction. Moreover, the effect of lignin removal by sulfuric acid from the autohydrolysis liquors before hemicellulose precipitation was studied. This purification step has allowed to obtain lignin-free autohydrolysis hemicellulose but with the presence of sulfur as predominant contaminant.es_ES
dc.description.sponsorshipAuthors would like to thank the Department of Education, Universities and Investigation of the Basque Government (pre-doctoral scholarship programs of young researchers training) for supporting financially this work.
dc.language.isoenges_ES
dc.publisherElsevier
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectcorn residueses_ES
dc.subjectautohydrolysises_ES
dc.subjectalkaline extractiones_ES
dc.subjecthemicelluloseses_ES
dc.subjectpurificationes_ES
dc.titleEffect of alkaline and autohydrolysis processes on the purity of obtained hemicelluloses from corn stalkses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderCopyright © 2011 Elsevier Ltd. under CC BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0960852411014271
dc.identifier.doi10.1016/j.biortech.2011.09.139
dc.departamentoesIngeniería química y del medio ambientees_ES
dc.departamentoeuIngeniaritza kimikoa eta ingurumenaren ingeniaritzaes_ES


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Copyright © 2011 Elsevier Ltd. under CC BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as Copyright © 2011 Elsevier Ltd. under CC BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/