The Nature of the Hemicelluloses of Jute Fiber: Part II

Hemicellulose I from jute fiber has been subjected to periodate oxidation under different conditions. From the amount of formic acid liberated during the oxidation under optimum conditions and from its nonreducing character, it is suggested that hemicellulose I has a branched structure. Its molecula...

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Bibliographic Details
Published in:Textile research journal 1954-08, Vol.24 (8), p.705-711
Main Authors: Das Gupta, P.C., Sarkar, P.B.
Format: Article
Language:English
Subjects:
Fibers
Formic acid
Jute
Molecular structure
Molecular weight
Optimization
Oxidation
Textiles
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Summary:Hemicellulose I from jute fiber has been subjected to periodate oxidation under different conditions. From the amount of formic acid liberated during the oxidation under optimum conditions and from its nonreducing character, it is suggested that hemicellulose I has a branched structure. Its molecular weight by the osmotic-pressure method has been found to be about 20,000. Methylaldobiuronic acid, derived from hemicellulose I, gives both formic acid (2 mols.) and formaldehyde (1 mol.) on oxidation with periodate. It appears to be 3- (3-methylglucuronosyl )- D-xylose. Based on the observations made here, a provisional structure is suggested for hemicellulose I.
ISSN:0040-5175
1746-7748
DOI:10.1177/004051755402400802