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Structure and reactivity of lignins and associated phenolic acids in wheat straw TMP and CTMP pulps

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dc.contributor.author Billa, E en
dc.contributor.author de Choudens, C en
dc.contributor.author Monties, B en
dc.date.accessioned 2014-03-01T01:50:24Z
dc.date.available 2014-03-01T01:50:24Z
dc.date.issued 2000 en
dc.identifier.issn 0018-3830 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/26028
dc.subject wheat straw lignins en
dc.subject phenolic acids en
dc.subject thioacidolysis en
dc.subject hydrogen peroxide bleaching en
dc.subject TMP en
dc.subject CTMP en
dc.subject.classification Forestry en
dc.subject.classification Materials Science, Paper & Wood en
dc.subject.other HYDROGEN-PEROXIDE en
dc.subject.other SYRINGYL LIGNIN en
dc.subject.other ETHER LINKAGE en
dc.subject.other VARIABILITY en
dc.subject.other GUAIACYL en
dc.subject.other FRACTIONS en
dc.subject.other SYSTEMS en
dc.subject.other OXYGEN en
dc.subject.other ALKALI en
dc.title Structure and reactivity of lignins and associated phenolic acids in wheat straw TMP and CTMP pulps en
heal.type journalArticle en
heal.language English en
heal.publicationDate 2000 en
heal.abstract The effect of hydrogen peroxide bleaching on the structure of thermomechanical (TMP) and chemother ermechanical (CTMP) wheat straw paper pulps was investigated. The results obtained by thioacidolysis indicated that the TMP treatment did not significantly affect the beta -0-4 structures of lignins whereas, the alkali conditions of sulfonation (CTMP) and bleaching induced the cleavage of the beta -0-4 bonds and an increase in the S/G ratio. Moreover, it was concluded that bleaching and sulfonation are responsible: for the partial solubilisation of the p-coumaric and ferulic acid esters. The ethers of p-coumaric acid are not significantly affected by these treatments whereas, the ethers of ferulic acid are degraded, as shown by acidolysis data. These results underline the structural differences of wheal straw pulps compared to wood pulps. en
heal.publisher WALTER DE GRUYTER & CO en
heal.journalName HOLZFORSCHUNG en
dc.identifier.isi ISI:000165693100012 en
dc.identifier.volume 54 en
dc.identifier.issue 6 en
dc.identifier.spage 637 en
dc.identifier.epage 640 en


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