Isolation and Analysis of the Hemicelluloses of the Fossil Tree (Metasequoia Glyptostroboides)
- 1 March 1990
- journal article
- research article
- Published by Taylor & Francis in Journal of Wood Chemistry and Technology
- Vol. 10 (1) , 123-132
- https://doi.org/10.1080/02773819008050231
Abstract
The hemicelluloses of the fossil tree (Metasequoia glyptostroboides) were isolated from a mildly-prepared acid chlorite holocellulose. Arabinoxylan, glucomannan, and galactoglucomannan were isolated from the holocellulose by extraction and fractionation techniques. The sugar compositions of the polysaccharides were analyzed by quantitative thin layer chromatography and gas chromatography. The hemicelluloses accounted for 21–22% of the wood; the arabinoxylan about 10%, the glucomannan about 6.3%, and the galactoglucomannan about 4.8%. The glucose:mannose ratio for the glucomannan and galactoglucomannan were approximately 1:1.6 and 1:1.7, respectively, in contrast to a ratio of 1:3 commonly found in coniferous woods.Keywords
This publication has 1 reference indexed in Scilit:
- Recent progress in the chemistry of wood hemicellulosesWood Science and Technology, 1967