Summary
Evidence of the detection by radiography of α-conidendrin and hydroxymatairesinol, major lignans of western hemlock wood, is presented. Advantages of this new technique to wood chemists, as well as implications to wood technologists in terms of erroneous measurement of the specific gravity of unextracted wood by X-ray densitometry, are discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Barton, G. M. 1963. Conidendrin in floccosoids of western hemlock. Forest Prod. J. 13 (7): 304.
Barton, G. M., Daniels, C. R. 1969. An explanation of floccosoid formation in the wood of western hemlock. Wood Sci. 1 (4): 238–240.
Krahmer, R. L., Hemingway, R. W., Hillis, W. E. 1970. The cellular distribution of lignans in Tsuga heterophylla wood. Wood Sci. Technol. 4 (2): 122–139.
Parker, M. L. 1970. Dendrochronological techniques used by the geolocial survey of Canada. In: Tree-ring analysis with special reference to Northwest America Ed. J. Harry, G. Smith and John Worrall. Univ. Br. Columbia, Fac. For., Vancouver, Bull. 7: 55–66. Also Geol. Surv. Can. Pap. 71-25: 1971. 30 p.
Parker, M. L., Jozsa, L. A. 1973. An X-ray scanning machine used to produce radiographs of wood samples for tree-ring width and density analysis. Wood and Fiber 5 (4): in press.
Parker, M. L., Schoorlemmer, J., Carver, L. J. 1973. A computerized scanning densitometer for automatic recording of tree-ring width and density data from X-ray negatives. Wood and Fiber 5 (4): in press.
Author information
Authors and Affiliations
Additional information
The authors thank R. M. Kellogg of the Western Forest Products Laboratory for his helpful discussions. This research was supported in part through grants to J.H.G. Smith, University of British Columbia, Faculty of Forestry, from the National Research Council of Canada (Grant No. A-2077) and the British Columbia Forest Service.
Rights and permissions
About this article
Cite this article
Parker, M.L., Barton, G.M. & Jozsa, L.A. Detection of lignans in western hemlock by radiography. Wood Science and Technology 8, 229–232 (1974). https://doi.org/10.1007/BF00352026
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00352026