Summary
Ultraviolet absorption spectra were determined microscopically for the different morphological regions of fourteen hardwood species. The woods were chosen to represent a range of methoxyl to carbon nine ratio (MeO/C9) in their lignins. The various trends in absorbance and peak wavelength indicated that
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1.
Syringyl residues become increasingly predominant in the walls of the fiberes and ray cells as the MeO/C9 ratio of the lignin increases.
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The vessel walls and cell corner regions contain mostly guaiacyl residues except at high MeO/C9 ratios when the syringyl character of the vessel walls increases. If certain reasonable assumptions were made, it was possible to resolve the spectrum of the fibre wall of eastern cottonwood into spectra of the syringyl, guaiacyl and p-hydroxy benzoic acid components.
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References
Aulin-Erdtman, G. 1953. Spectrographic contributions to lignin chemistry III. Investigations on model compounds. Svensk Papperstid 56: 91–101
Aulin-Erdtman, G.; Hegbom, L. 1957. Spectrographic contributions to lignin chemistry VII. The ultraviolet absorption and ionization Δ ε-curves of some phenols. Svensk Papperstid. 60: 671–681
Bentum, A. L. K.; Côté Jr., W. A.; Day A. C.; Timell, T. E. 1969. Distribution of lignin in normal and tension wood. Wood Sci. Technol. 3: 318–331
Bland, D. E.; Ho, G.; Cohen, W. E. 1950. Aromatic aldehydes from the oxidation of some Australian woods and their chromatographic separation. Australian J. Sci. Res. 3 A: 642–648
Bland, D. E.; Scurfield, G. 1964. The chemistry of reaction wood, Part IV. The distribution and nature of the lignin in seedlings of hardwoods. Holzforschung 18: 161–166
Casey, J. M. 1970. The chemical characterization of hardwood lignins. M.Sc. thesis University of Washington, Seattle
Creighton, R. H. J.; Gibbs, R. D.; Hibbert, H. 1944. Studies on lignin and related compounds. LXXV. Alkaline nitrobenzene oxidation of plant materials and application to taxonomic classification. J. Amer. Chem. Soc. 66: 32–37
Fergus, B. J.; Procter, A. R.; Scott, J. A. N.; Goring, D. A. I. 1969. The distribution of lignin in sprucewood as determined by ultraviolet microscopy. Wood Sci. Technol. 3: 117–138
Fergus, B. J.; Goring, D. A. I. 1970a. The location of guaiacyl and syringyl lignins in birch xylem tissue. Holzforschung 24: 113–117
Fergus, B. J.; Goring, D. A. I. 1970b. The distribution of lignin in birch woods as determined by ultraviolet microscopy. Holzforschung 24: 118–124
Kawamura, I.; Bland, D. E. 1967. The lignins of Eucalyptus wood from tropical and temperate zones. Holzforschung 21: 65–74
Lang, L. 1963. Absorption spectra in the ultraviolet and visible regions. Academic Press, New York. 4: 84
Musha, Y. 1973. Distribution of lignin in hardwoods. Ph.D.thesis. McGill University, Montreal
Pearl, I. A. 1957. The nature of aspen lignin. Forest Prod. J. 7: 88–90
Pearl, I. A.; Beyer, D. L.; Johnson, B. J.; Wilkinson, S. 1957. Alkaline, hydrolysis of representative hardwoods. Tappi 40: 374–378
Pew, J. C. 1962. Biphenyl group in lignin. Nature 193: 250–252
Pew, J. C. 1963. Evidence of a biphenyl group in lignin. J. Organic Chem. 28: 1048–1054
Sarkanen, K. V.; Chang, H.-M.; Allan, G. G. 1967a. Species variation in lignins II. Conifer lignins. Tappi 50: 583–587
Sarkanen, K. V.; Chang, H.-M.; Allan, G. G. 1967b. Species variation in lignins III. Hardwood lignins. Tappi 50: 587–590
Scott, J. A. N.; Procter, A. R.; Fergus, B. J.; Goring, D. A. I. 1969. The application of ultraviolet microscopy to the distribution of lignin in wood. Description and validity of the technique. Wood Sci. Technol. 3: 73–92
Scott, J. A. N.; Goring, D. A. I. 1970. Lignin concentrationin the S3 layer of softwoods. Cellulose Chem. Technol. 4: 83–93
Smith, D. C. C. 1955. p-Hydroxybenzoate groups in the lignin of aspen (Populus tremula). J. Chem. Soc. 2347–2351
Timell, T. E. 1969. The chemical composition of tension wood. Svensk Papperstid. 72: 173–181
Venverloo, C. J. 1969. The lignin of Populus nigra L. CV. “Italica”. A comparative study of the lignified structures in tissue cultures and the tissues of the tree. Acta Bot. Neerl. 18: 241–314
Venverloo, C. J. 1971. The lignin of Populus nigra L. CV. “Italica” and some other salicaceae. Holzforschung 25: 18–24
Wood, J. R.; Goring, D. A. I. 1971. The distribution of lignin in stem wood and branch wood of Douglas fir. Pulp Paper Mag. Canada 72: T95-T102
Wood, J. R. 1972. The topochemistry of delignification reactions. Ph.D. thesis. McGill University, Montreal
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Musha, Y., Goring, D.A.I. Distribution of syringyl and guaiacyl moieties in hardwoods as indicated by ultraviolet microscopy. Wood Science and Technology 9, 45–58 (1975). https://doi.org/10.1007/BF00351914
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DOI: https://doi.org/10.1007/BF00351914