Studies on the hemicelluloses of Setaria sphacelata and Cynodon plectostachyus

Cheetham, Norman W. H. (1970). Studies on the hemicelluloses of Setaria sphacelata and Cynodon plectostachyus PhD Thesis, Department of Agriculture, University of Queensland. doi:10.14264/uql.2016.442

       
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Author Cheetham, Norman W. H.
Thesis Title Studies on the hemicelluloses of Setaria sphacelata and Cynodon plectostachyus
School, Centre or Institute Department of Agriculture
Institution University of Queensland
DOI 10.14264/uql.2016.442
Publication date 1970
Thesis type PhD Thesis
Supervisor R.J. McIlroy
Total pages 183
Language eng
Subjects 07 Agricultural and Veterinary Sciences
Formatted abstract
Hemicelluloses of the tropical species Setaria sphacelata and Cxnodon plectostachyus were extracted from the plant material with aqueous alkali and subjected to purification. In the case of Setaria a continuous electrophoresis method was developed to fractionate the hemicellulose. After acid hydrolysis, monosaccharide compositions were determined by g.I.e. of alditol acetates and by an automated column chromatographic method. Methylation analyses allowed structural details to be deduced and provisional formulae have been proposed. Number-average molecular weights were determined by vapour-phase osmometry on the methylated polysaccharides. A comparative study of three different polysaccharide methylation procedures was made to compare the relative yields obtained, and degree of degradation caused by each method. A method of estimating the molecular weight distribution of polysaccharides was developed.
Keyword Hemicellulose
Additional Notes Spine title: Hemicelluloses of Setaria spacelata and Cynodon plectostachyus

Document type: Thesis
Collection: UQ Theses (RHD) - UQ staff and students only
 
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