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Novel xylan gels prepared from oat spelts

: Hettrich, K.; Fanter, C.


Heinze, T.:
Utilization of lignocellulosic materials : Selected contributions from the conference: 51st Cellulose Symposium in: Wiesbaden (Germany), June 23 to 24, 2009
Weinheim: Wiley-VCH, 2010 (Macromolecular symposia 294.2010, Nr.2)
ISSN: 0258-0322
Cellulose Symposium <51, 2009, Wiesbaden>
Conference Paper, Journal Article
Fraunhofer IAP ()

Gels and pastes are used in many areas including application in the cosmetic, pharmaceutical and medical industries. A xylan derivative with pasty consistency was prepared in addition to the synthesis of xylan ethers and esters. The water content of the gel can be widely varied. The gel is formed although the xylan contains no cross-linking group. The hydrophobic and hydrophilic nature of the xylan gel can be adjusted by modifying the xylan. All of the gels can be dried using different methods (air drying, solvent exchange as well as freeze drying) and the dried gels can again disperse in water. The gels were characterised by porosity measurements (mercury intrusion), dynamic vapour sorption (DVS), scanning electron microscopy (SEM) and dispersion stability investigation respectively.