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Mid-Infrared, Raman and NMR Imaging of Flax

Published online by Cambridge University Press:  02 July 2020

D. S. Himmelsbach ,
S. Khalili ,
G. R. Gamble  and
D. E. Akin
D. S. Himmelsbach
Affiliation:
United States Department of Agriculture, Agricultural Research Service, R. B. Russell Research Center, Athens, GA30604
S. Khalili
Affiliation:
Department of Forest Products, The Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden
G. R. Gamble
Affiliation:
United States Department of Agriculture, Agricultural Research Service, R. B. Russell Research Center, Athens, GA30604
D. E. Akin
Affiliation:
United States Department of Agriculture, Agricultural Research Service, R. B. Russell Research Center, Athens, GA30604
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Extract

Multiple microspectroscopic imaging techniques have been employed to reveal the chemical and structural nature of flax (Linum usitatissimum L.) stem tissue, with the goal of finding the best technique by which to monitor retting processes for the production of linen fibers. Three of these techniques, which we have investigated for this purpose, are: mid-infrared (MIR), Raman and nuclear magnetic resonance (NMR) imaging. Initially, all three techniques were evaluated on the basis of their ability to reveal the nature of unretted flax stems. MIR imaging was found to be the most useful for this purpose. Thus, it was selected as the method of choice to follow retting processes to obtain flax fibers.

A Fourier transform (FT)-IR spectrometer equipped with microscope was used to acquire the MTR images. A FT-Raman spectrometer that was equipped with a Raman microprobe and utilizing a 1064 nm laser source was used to collect the Raman images.

Type
Microscopic Analysis of Natural Fibers
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 844 - 845
Copyright
Copyright © Microscopy Society of America

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