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    Author(s): John Ralph; Larry L. Landucci
    Date: 2010
    Source: Lignin and lignans: advances in chemistry: Chapter 5. Boca Raton, FL: Taylor & Francis, c2010: p. 137-244: ISBN: 9781574444865 (hardcover : alk. paper)
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (3.1 MB)

    Description

    This chapter will consider the basic aspects and findings of several forms of NMR spectroscopy, including separate discussions of proton, carbon, heteronuclear, and multidimensional NMR. Enhanced focus will be on 13C NMR, because of its qualitative and quantitative importance, followed by NMR’s contributions to our understanding of lignin structure by topic rather than by the type of NMR experiment. The more recent availability of lignin-biosynthetic-pathway mutant and transgenic plants has greatly aided the NMR analysis of perturbed and normal lignins, providing deeper insights into the lignification process. Solution-state NMR analysis of lignins, without the need for isolation from the other cell wall components, is also covered.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Ralph, John; Landucci, Larry L. 2010. NMR of lignins. In: Lignin and lignans: advances in chemistry: Chapter 5. Boca Raton, FL: Taylor & Francis, c2010: p. 137-244: ISBN: 9781574444865 (hardcover : alk. paper)

    Keywords

    Lignin, wood chemistry, nuclear magnetic resonance spectroscopy, spectrum analysis, chemical composition, analytic chemistry, lignification, plant cell walls, carbon, isotopes, dehydrogenation, transgenic plants, enzymes, biotechnology, pulping, lignin, DHP, syringyl, guaiacyl, ferulate, pulp and paper processes

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