Fates of hemicellulose, lignin and cellulose in concentrated phosphoric acid with hydrogen peroxide (PHP) pretreatment

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Wang, Qing
dc.contributor.author Tian, Dong
dc.contributor.author Hu, Jinguang
dc.contributor.author Shen, Fei
dc.contributor.author Yang, Gang
dc.contributor.author Zhang, Yanzong
dc.contributor.author Deng, Shihuai
dc.contributor.author Zhang, Jing
dc.contributor.author Zeng, Yongmei
dc.contributor.author Hu, Yaodong
dc.date.accessioned 2018-05-22T14:42:17Z
dc.date.available 2018-05-22T14:42:17Z
dc.date.issued 2018
dc.identifier.citation Wang , Q , Tian , D , Hu , J , Shen , F , Yang , G , Zhang , Y , Deng , S , Zhang , J , Zeng , Y & Hu , Y 2018 , ' Fates of hemicellulose, lignin and cellulose in concentrated phosphoric acid with hydrogen peroxide (PHP) pretreatment ' RSC Advances , vol 8 , no. 23 , pp. 12714-12723 . DOI: 10.1039/c8ra00764k en
dc.identifier.issn 2046-2069
dc.identifier.other PURE UUID: 91b6f7fe-0696-4ef2-9423-72a43993d2a5
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/fates-of-hemicellulose-lignin-and-cellulose-in-concentrated-phosphoric-acid-with-hydrogen-peroxide-php-pretreatment(91b6f7fe-0696-4ef2-9423-72a43993d2a5).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85045193583&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/19281728/Wang_et_al_2018_Fates_of_hemicellulose_RSC_Advances.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/31039
dc.description.abstract Xylan, de-alkaline lignin and microcrystalline cellulose were employed as representative models of hemicellulose, lignin and cellulose in lignocellulosic biomass. These three model compounds, together with the real-world biomass, wheat straw were pretreated using the newly developed PHP pretreatment (concentrated phosphoric acid plus hydrogen peroxide) to better understand the structural changes of the recovered solid and chemical fractions in the liquid. Results showed that almost all xylan and higher than 70% lignin were removed from wheat straw, and more than 90% cellulose was recovered in the solid fraction. The pretreated model xylan recovered via ethanol-precipitation still maintained its original structural features. The degree of polymerization of soluble xylooligosaccharides in liquid was reduced, resulting in the increase of monomeric xylose release. Further xylose oxidization via the path of 2-furancarboxylic acid → 2(5H)-furanone → acrylic acid → formic acid was mainly responsible for xylan degradation. The chemical structure of de-alkaline lignin was altered significantly by PHP pretreatment. Basic guaiacyl units of lignin were depolymerized, and aromatic rings and side aliphatic chains were partially decomposed. Ring-opening reactions of the aromatics and cleavage of C-O-C linkages were two crucial paths to lignin oxidative degradation. In contrast to lignin, no apparent changes occurred on microcrystalline cellulose. The reason was likely that acid-depolymerization and oxidative degradation of cellulose were greatly prevented by the formed cellulose phosphate. en
dc.format.extent 10
dc.format.extent 12714-12723
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries RSC Advances en
dc.relation.ispartofseries Volume 8, issue 23 en
dc.rights openAccess en
dc.subject.other Chemistry(all) en
dc.subject.other Chemical Engineering(all) en
dc.subject.other 215 Chemical engineering en
dc.subject.other cellulose en
dc.subject.other lignin en
dc.title Fates of hemicellulose, lignin and cellulose in concentrated phosphoric acid with hydrogen peroxide (PHP) pretreatment en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Sichuan Agricultural University
dc.contributor.department Biomolecular materials
dc.contributor.department Department of Bioproducts and Biosystems en
dc.subject.keyword Chemistry(all)
dc.subject.keyword Chemical Engineering(all)
dc.subject.keyword 215 Chemical engineering
dc.subject.keyword cellulose
dc.subject.keyword lignin
dc.identifier.urn URN:NBN:fi:aalto-201805222479
dc.identifier.doi 10.1039/c8ra00764k
dc.type.version publishedVersion

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