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

dc.creatorGalindo Hernández, Karen Lizeth
dc.creatorTapia Rodríguez, Aida Cecilia
dc.creatorAlatriste Mondragón, Felipe
dc.creatorCelis García, María de Lourdes Berenice
dc.creatorArreola Vargas, Jorge
dc.creatorRazo Flores, Elías
dc.date2019-08-22T23:27:38Z
dc.date2019-08-22T23:27:38Z
dc.date2018
dc.date.accessioned2023-07-17T22:04:49Z
dc.date.available2023-07-17T22:04:49Z
dc.identifierKaren 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.identifierhttp://hdl.handle.net/11627/5089
dc.identifierhttps://doi.org/10.1016/j.ijhydene.2018.10.071
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7544120
dc.description"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.formatapplication/pdf
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsAcceso Abierto
dc.subjectAgave bagasse
dc.subjectAnaerobic digestion
dc.subjectDark fermentation
dc.subjectDelignification
dc.subjectEnzymatic synergism
dc.subjectLignin
dc.subjectELECTROQUÍMICA
dc.titleEnhancing saccharification of Agave tequilana bagasse by oxidative delignification and enzymatic synergism for the production of hydrogen and methane
dc.typearticle


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