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Enhancing saccharification of Agave tequilana bagasse by oxidative delignification and enzymatic synergism for the production of hydrogen and methane

dc.contributor.authorGalindo Hernández, Karen Lizeth
dc.contributor.authorTapia Rodríguez, Aida Cecilia
dc.contributor.authorAlatriste Mondragón, Felipe
dc.contributor.authorCelis García, María de Lourdes Berenice
dc.contributor.authorArreola Vargas, Jorge
dc.contributor.authorRazo Flores, Elías
dc.date.accessioned2019-08-22T23:27:38Z
dc.date.available2019-08-22T23:27:38Z
dc.date.issued2018
dc.identifier.citationKaren Lizeth Galindo-Hernández, Aída Tapia-Rodríguez, Felipe Alatriste-Mondragón, Lourdes B. Celis, Jorge Arreola-Vargas, Elías Razo-Flores, Enhancing saccharification of Agave tequilana bagasse by oxidative delignification and enzymatic synergism for the production of hydrogen and methane, International Journal of Hydrogen Energy, Volume 43, Issue 49, 2018, Pages 22116-22125.
dc.identifier.urihttp://hdl.handle.net/11627/5089
dc.description.abstract"Agave tequilana bagasse is a suitable lignocellulosic residue for energy production. However, the presence of lignin and the heterogeneous structure of hemicellulose may hinder the availability of polysaccharides. In this work, the pretreatment of A. tequilana bagasse with alkaline hydrogen peroxide (AHP) followed by enzymatic saccharification with hemicellulases and cellulases was assessed for the removal of lignin and extraction of fermentable sugars, respectively. Results of the AHP pretreatment indicated that it is possible to attain up to 97% delignification and recover 88% of cellulose and hemicellulose after only 1.5 h of treatment. Regarding the saccharification process, the total sugar yield and productivity were both increased by 2-fold using an enzymatic mixture (cellulases + hemicellulases) compared to single enzyme hydrolysis (cellulases), evidencing synergism. Further evaluation of the hydrolyzates as substrate for hydrogen and methane production, resulted in yields 1.5 and 3.6-times (215.14 ± 13 L H2 and 393.4 ± 13 L CH4 per kg bagasse, respectively) superior to those obtained with hydrolyzates of non-pretreated bagasse processed with a single enzyme. Overall, using AHP pretreatment and subsequent hydrolysis with enzymatic mixtures improves the saccharification of A. tequilana bagasse enhancing the production of hydrogen and methane."
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAgave bagasse
dc.subjectAnaerobic digestion
dc.subjectDark fermentation
dc.subjectDelignification
dc.subjectEnzymatic synergism
dc.subjectLignin
dc.subject.classificationELECTROQUÍMICA
dc.titleEnhancing saccharification of Agave tequilana bagasse by oxidative delignification and enzymatic synergism for the production of hydrogen and methane
dc.typearticle
dc.identifier.doihttps://doi.org/10.1016/j.ijhydene.2018.10.071
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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