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dc.contributor.authorSchneider, Laura
dc.contributor.authorDong, Yue
dc.contributor.authorHaverinen, Jasmiina
dc.contributor.authorJaakkola, Mari
dc.contributor.authorLassi, Ulla
dc.date.accessioned2017-05-29T10:44:17Z
dc.date.available2018-05-20T21:36:03Z
dc.date.issued2016
dc.identifier.citationSchneider, L., Dong, Y., Haverinen, J., Jaakkola, M., & Lassi, U. (2016). Efficiency of acetic acid and formic acid as a catalyst in catalytical and mechanocatalytical pretreatment of barley straw. <i>Biomass and Bioenergy</i>, <i>91</i>, 134-142. <a href="https://doi.org/10.1016/j.biombioe.2016.05.015" target="_blank">https://doi.org/10.1016/j.biombioe.2016.05.015</a>
dc.identifier.otherCONVID_25718491
dc.identifier.otherTUTKAID_70097
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/54158
dc.description.abstractIn this study, the potential of organic acids (formic acid, acetic acid) in a catalytical and mechanocatalytic conversion of lignocellulosic barley straw to valuable sugars is explored using sulfuric acid as a reference. Acid-catalyzed hydrolysis has been carried out with acid-impregnated samples as well as unmodified barley straw. In the mechanocatalytical approach, pretreatment consists of impregnation with the acid catalyst and mechanical treatment by ball milling following chemical hydrolysis. Straw samples and residues were analyzed by Fourier transform infrared spectrometry (FT-IR) whereas hydrolysate analysis was based on total reducing sugar (TRS) determination following the DNS method and capillary electrophoresis (CE) analysis. The results indicated that acetic acid and formic acid are rather mild acids yielding low TRS levels compared to the reference acid. Mechanocatalytical pretreatment slightly increased TRS yields, but not significantly. Strikingly, sulfuric acid showed an efficient conversion efficiency yielding almost 45% of TRS. Furthermore, this study provided evidence for the acetylation of straw components when acetic acid was used as catalyst. Alkali hydrolysis induced the de-esterification, but revealed no significant increase of TRS yields.
dc.language.isoeng
dc.publisherPergamon
dc.relation.ispartofseriesBiomass and Bioenergy
dc.subject.otherBarley straw
dc.subject.othermechanocatalytical conversion
dc.titleEfficiency of acetic acid and formic acid as a catalyst in catalytical and mechanocatalytical pretreatment of barley straw
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201705292539
dc.contributor.laitosKokkolan yliopistokeskus Chydeniusfi
dc.contributor.laitosKokkola University Consortium Chydeniusen
dc.contributor.oppiaineSoveltavan kemian yksikköfi
dc.contributor.oppiaineThe Unit of Applied Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-05-29T09:15:03Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange134-142
dc.relation.issn0961-9534
dc.relation.numberinseries0
dc.relation.volume91
dc.type.versionacceptedVersion
dc.rights.copyright© 2016 Elsevier Ltd. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.subject.ysolignoselluloosa
dc.subject.ysomuurahaishappo
dc.subject.ysoetikkahappo
jyx.subject.urihttp://www.yso.fi/onto/yso/p26727
jyx.subject.urihttp://www.yso.fi/onto/yso/p6513
jyx.subject.urihttp://www.yso.fi/onto/yso/p8313
dc.relation.doi10.1016/j.biombioe.2016.05.015


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