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Fibers 2015, 3(1), 30-40; doi:10.3390/fib3010030

FT-IR Examination of the Development of Secondary Cell Wall in Cotton Fibers

Cotton Structure & Quality Research Unit, Southern Regional Research Center (SRRC), ARS, USDA, New Orleans, LA 70124, USA
Cotton Chemistry & Utilization Research Unit, Southern Regional Research Center (SRRC), ARS, USDA, New Orleans, LA 70124, USA
Mention of a product does not constitute a warranty by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable.
Author to whom correspondence should be addressed.
Academic Editor: Noureddine Abidi
Received: 16 September 2014 / Accepted: 27 January 2015 / Published: 29 January 2015
(This article belongs to the Special Issue Cellulose Fibers)
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The secondary cell wall development of cotton fibers harvested at 18, 20, 24, 28, 32, 36 and 40 days after flowering was examined using attenuated total reflection Fourier transform-infrared (ATR FT-IR) spectroscopy. Spectra of deuterated cotton fibers did not demonstrate significant changes in their O–H stretching band shapes or positions during development. Only a progressive increase in O–H band intensity was observed. Results indicate that the highly crystalline cellulose component produced during secondary cell wall formation maintains the hydrogen bonding network observed for the primary cell wall. Other general changes were observed for the regular ATR spectra. A progressive intensity increase for bands assigned to cellulose Iβ was observed during fiber development, including a marked intensity increase for vibrations at 1002 and 985 cm−1. In contrast, C–O vibrational bands from dominant conformations observed at 1104, 1052, 1028 cm−1 undergo a modest intensity increase during secondary cell wall development. View Full-Text
Keywords: cotton; FT-IR; moisture; maturity; cell wall cotton; FT-IR; moisture; maturity; cell wall

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cintrón, M.S.; Hinchliffe, D.J. FT-IR Examination of the Development of Secondary Cell Wall in Cotton Fibers . Fibers 2015, 3, 30-40.

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