Biorelated Polymers pp 41-52 | Cite as
Isolation, Characterisation and Material Properties of 4-O-Methylglucuronoxylan from Aspen
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Abstract
Hemicelluloses are among the most abundant biopolymers although they are not yet being used as materials. This study focused on isolating polymeric 4-O-methylglucuronoxylan, which is the most abundant heteropolysaccharide (hemicellulose) in aspen wood (Populus tremula). The wood chips were extracted sequentially with different liquids. The isolated xylan was analysed for carbohydratate composition, molecular weight and crystallinity. The alkali extraction procedure used is selective and yields a high xylose containing polymeric xylan from aspen wood. The xylan showed fair film forming properties, which were enhanced when the xylan was carboxymethylated in homogenous alkali solution. The carboxymethylated xylan was water soluble and formed excellent films which were partially crystalline.
Keywords
High Performance Liquid Chromatography Steam Explosion Carbohydrate Composition Wood Chemistry Aspen Wood
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References
- 1.Hon, D.N.-S., 1996, Chemical Modification of Lignocellulosic Materials, Chap 1, Marcel Dekker Inc., New York, pp 2–3Google Scholar
- 2.Kleppe, P.J., 1970, Kraft pulping, Tappi, 53: 35–47Google Scholar
- 3.Roberts, J.C., and El-Karim, S.A., 1983, The behavior of surface adsorbed xylans during the beating of a bleached kraft pine pulp, Cellulose Chemistry and Technology, 17: 379–386Google Scholar
- 4.Timell, T.E., 1967, Recent progress in the chemistry of wood hemicelluloses Wood Science Technology, 1: 45–70CrossRefGoogle Scholar
- 5.Glasser, W.G., Kaar, W.E., Jain, K.R., and Sealey, J.E., 2000, Isolation options for noncellulosics heteropolysaccharides (HetPS), Cellulose 41: 299–317CrossRefGoogle Scholar
- 6.Kaar, W.E., Cool, L.G., Merriman M.M., and Brink, D.L., 1991, The complete analysis of wood polysaccharides using HPLC, J. Wood Chemistry and Technology, 11: 447–463CrossRefGoogle Scholar
- 7.Kaar, W.E., Brink, D.L., 1991, Simplified analysis of acid soluble lignin, J. Wood Chemistry and Technology, 11: 465–477CrossRefGoogle Scholar
- 8.Kaar, W.E., Brink, D.L., 1991, Summative analysis of nine common north American woods, J. Wood Chemistry and Technology, 11: 479–494CrossRefGoogle Scholar
- 9.Dahlman, O., Jacobs, A., Liljenberg, A. and Ismail Olsson, A., 2000, Analysis of carbohydrates in wood and pulps employing enzymatic hydrolysis and subsequent capillary zone electrophoresis, J. Chromatogr. A 891: 157–174Google Scholar
- 10.Berggren, R., Berthold, F., Sjöholm, E. and Lindström, M., 2000, Degradation patterns and strength development of fibres subjected to ozone degradation or acid hydrolysis, 6th European Workshop on Lignocellulosics and Pulp, Bordeaux, pp. 205–208.Google Scholar
- 11.Sjöholm, E., Gustafsson, K., Berthold, F. and Colmsjö, A., 2000, Influence of carbohydrate composition on the molecular weight distribution of kraft pulps, Carbohydrate Polymers 41: 1–7.CrossRefGoogle Scholar
- 12.Sjöström, E., 1981, Wood Chemistry, Fundamentals and Applications, San Diego, CA, Academic PressGoogle Scholar
- 13.Gabrielli, I., Gatenholm, P., Glasser, W.G, Jain, R.K., and Kenne, L., 2000, Separation, characterization and hydrogel-formation of hemicellulose from aspen wood, Carbohydrate Polymers 43: 367–374.CrossRefGoogle Scholar
- 14.Shimizu, K., Sudo, K., Ono, H., and Fujii, T., (1989), Wood Processing and Utilization, (J. F. Kennedy, G.O. Phillips, P. A. Williams, eds.) Ellis Horwood, Chicester, pp 407–412Google Scholar
- 15.Teleman, A., Harjunpää, V., Tenkanen, M., Buchert, J., Hausalo, T., Drakenberg, T. and Vuorinen, T., 1995, Characterisation of 4-deoxy-b-L-threo-hex-4-enopyranosyluronoc acid attached to xylan in pine kraft pulp and pulping liquor by 1H and 13C NMR spectroscopy, Carbohydrate Research 272: 55–71.CrossRefGoogle Scholar
- 16.Teleman, A., Lundqvist, J., Tjerneld, F., Stålbrand, H. and Dahlman, O., 2000, Characterization of acetylated 4-O-methylglucoronoxylan isolated from aspen employing 1 H and 1 3C NMR spectroscopy, Carbohydrate Research 329: 807–815.CrossRefGoogle Scholar
- 17.O’Dwyer, M.H. (1926) LXXXVI. The hemicelluloses. Part IV. Biochem.J. Google Scholar
- 18.Glasser, W.G., Jain, R.K. and Sjöstedt, M.A., (1995) Thermoplastic pentosan-rich polysaccharides from biomass, US patent #5,430,142Google Scholar
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