{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T17:29:04Z","timestamp":1760549344162},"reference-count":0,"publisher":"Walter de Gruyter GmbH","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Holzforschung"],"published-print":{"date-parts":[[2013,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Xylans isolated from eucalypt kraft pulps have been characterized by modern analytical methods. The pulps were partially bleached (DE<jats:sub>OP<\/jats:sub>D) and fully bleached with either a final ClO<jats:sub>2<\/jats:sub> (DE<jats:sub>OP<\/jats:sub>DD) or an alkaline H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> (DE<jats:sub>OP<\/jats:sub>DP) bleaching stage. Alternatively, xylan isolated from the DE<jats:sub>OP<\/jats:sub>D pulp was treated with ClO<jats:sub>2<\/jats:sub> or with H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> under the same conditions as pulps in a final bleaching stage and were further characterized. <jats:sup>1<\/jats:sup>H nuclear magnetic resonance, size exclusion chromatography, UV-vis spectroscopy in cadoxen solution, and UV-resonance Raman spectroscopy were applied as analytical methods. The final ClO<jats:sub>2<\/jats:sub> stage generated new unsaturated moieties in xylan, whereas H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> was very effective in the removal of xylan-related chromophores. The role of xylan to the delay of brightness development in the final ClO<jats:sub>2<\/jats:sub> stage was highlighted by means of a pretreatment with xylanase Pulpzyme HC before the final bleaching stage. By this approach, the final bleachability of the pulp was boosted and the brightness stability of the fully bleached pulp was improved.<\/jats:p>","DOI":"10.1515\/hf-2012-0185","type":"journal-article","created":{"date-parts":[[2013,3,14]],"date-time":"2013-03-14T11:11:53Z","timestamp":1363259513000},"page":"497-503","source":"Crossref","is-referenced-by-count":6,"title":["Contribution of xylan to the brightness development and stability in the final ECF bleaching of eucalypt (<i>Eucalyptus globulus<\/i> Labill.) kraft pulp"],"prefix":"10.1515","volume":"67","author":[{"given":"Pedro E.G.","family":"Loureiro","sequence":"first","affiliation":[{"name":"CICECO, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"given":"Joana I.T.","family":"Sousa","sequence":"additional","affiliation":[{"name":"CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal"}]},{"given":"M. Gra\u00e7a. V.S.","family":"Carvalho","sequence":"additional","affiliation":[{"name":"CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal"}]},{"given":"Dmitry V.","family":"Evtuguin","sequence":"additional","affiliation":[{"name":"CICECO, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal"}]}],"member":"374","published-online":{"date-parts":[[2013,3,14]]},"container-title":["hfsg"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.degruyter.com\/view\/j\/hfsg.2013.67.issue-5\/hf-2012-0185\/hf-2012-0185.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/hf-2012-0185\/xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/hf-2012-0185\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,1,6]],"date-time":"2023-01-06T15:25:54Z","timestamp":1673018754000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/hf-2012-0185\/html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,3,14]]},"references-count":0,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2013,2,16]]},"published-print":{"date-parts":[[2013,7,1]]}},"alternative-id":["10.1515\/hf-2012-0185"],"URL":"https:\/\/doi.org\/10.1515\/hf-2012-0185","relation":{},"ISSN":["1437-434X","0018-3830"],"issn-type":[{"value":"1437-434X","type":"electronic"},{"value":"0018-3830","type":"print"}],"subject":[],"published":{"date-parts":[[2013,3,14]]}}}