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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Analysis of the physical properties of developing cotton fibres
European Polymer Journal, Volume 51, No. 1, Year 2014
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Description
Cotton fibres develop over four stages: initiation, elongation, secondary-wall thickening, and maturation. They develop a significant crystalline structure during the secondary wall thickening stage of development. Cotton fibres were harvested from 17 days to 60 days after flowering (dpa). Transmission Electron Microscopy (TEM), Interferometry, Attenuated Total Reflectance Fourier-transform Infrared (ATR-FTIR) spectroscopy, immunofluorescence labelling, and fluorescence spectroscopy were used to characterise the cotton fibres in different stages. It was found that, secondary wall thickening and micronaire remain fairly constant from 17 to 24 dpa, after that time significant change occurs until maturity. Maturity ratio increases as the fibres develop. Birefringence increases rapidly from 17 dpa to 26 dpa, then levels off up to 60 dpa. It is evident by comparing the lateral order index (LOI) and results from the binding of a crystalline-cellulose binding probe (CBM3a) that there is a significant increase in the degree of cellulose crystallinity from 17 dpa to 26 dpa. Hydrogen Bond Intensity (HBI) increased to 24 dpa and decreased from 24 to 40 dpa indicating significant changes in inter-molecular hydrogen bonds. From 40 to 60 dpa an increase of HBI was observed. It is concluded that during the maturation stage of cotton fibre development, water loss from lumen allows the cellulose chains to come closer together and to form intermolecular hydrogen-bonds. TEM, Interferometry, ATR-FTIR spectroscopy, and immunofluorescence labelling combined with fluorescence spectroscopy, were demonstrated to be useful techniques in quantifying physical changes in cotton fibres during development, offering advantages over traditional analytical techniques. © 2013 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Kljun, Alenka
United Kingdom, Leeds
University of Leeds
El-Dessouky, Hassan M.
United Kingdom, Leeds
University of Leeds
Egypt, Mansoura
Faculty of Science
Benians, Thomas A.S.
United Kingdom, Leeds
University of Leeds
Goubet, Florence
Belgium, Ghent
Bayer Cropscience - Belgium
Meulewaeter, Frank
Belgium, Ghent
Bayer Cropscience - Belgium
Knox, Paul Paul
United Kingdom, Leeds
University of Leeds
Blackburn, Richard S.
United Kingdom, Leeds
University of Leeds
Statistics
Citations: 35
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1016/j.eurpolymj.2013.11.016
ISSN:
00143057
Research Areas
Environmental