caa a22 4500 378867733 CHVBK 20180305123402.0 cr unu---uuuuu 161128e20030820xx s 000 0 eng 10.1515/HF.2003.074 doi (NATIONALLICENCE)gruyter-10.1515/HF.2003.074 Effect of Ozonation on Assembly of Xylans [Elektronische Daten] [Å. Linder, J. P. Roubroeks, P. Gatenholm] In this study the molecular structure of birch xylan was altered by ozonation. Longer ozonation times increased the cleavage of aromatic rings in the lignin residues attached to the xylan molecules, resulting in the formation of muconic acid derivatives and other carboxylic acid structures. Size exclusion chromatography showed a decreasing molar mass of xylan after ozonation. The ozonation improved xylan solubility as evidenced by the reduced amounts of aggregates in aqueous solution. Atomic force microscopy showed increases in the sizes of the aggregates. Furthermore, the ozonation resulted in a decreased ability of xylan to assemble into particle-like structures on cellulose surfaces. We therefore believe that there is a relationship between xylan aggregation in aqueous solution and the formation of xylan surface structures on cellulose. Copyright © 2003 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Linder Å. aut Roubroeks J. P. aut Gatenholm P. aut Holzforschung Walter de Gruyter 57/5(2003-08-20), 496-502 0018-3830 57:5<496 2003 57 hfsg https://doi.org/10.1515/HF.2003.074 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2003.074 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Linder Å. aut NATIONALLICENCE 700 1- Roubroeks J. P. aut NATIONALLICENCE 700 1- Gatenholm P. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 57/5(2003-08-20), 496-502 0018-3830 57:5<496 2003 57 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter