COMPARATIVE STUDY ON THE CONSTITUTENTS OF SOUND AND DISEASE AFFECTED SISSOO (DALBERGIA SISSOO ROXB) WOOD

M. Obaidullah  Hannan; Anup Kumar  Roy; S. M.  Hasnin

doi:10.53808/KUS.1999.1.2.139-142-se

Authors

M. Obaidullah Hannan Forestry and Wood Technology Discipline, Khulna University, Khulna-9208, Bangladesh
Anup Kumar Roy Forestry and Wood Technology Discipline, Khulna University, Khulna-9208, Bangladesh
S. M. Hasnin Research Officer, Bangladesh Forest Research Institute, Chittagong, Bangladesh.

DOI:

https://doi.org/10.53808/KUS.1999.1.2.139-142-se

Keywords:

Dalbergia sissoo; Wood constituents; Sound wood; Massive mortality; Wood technology

Abstract

A comparative study has been conducted on the constituents of sissoo (Dalbergia sissoo) wood to find out the effect of causal agent of massive mortality. Ten ideal pieces of affected and four pieces of sound wood were collected from different plantations. The sawdust of both sound and affected wood was freed from extractives with alcohol benzene mixture in a soxhlet apparatus. Cellulose and hemicellulose were determined by treatment of 10% sodium hydroxide, acetic acid and ethyl alcohol, and lignin by 72% sulfuric acid and phosphoric acid mixture. Distinct variations were found among the constituents of sound and affected sissoo wood. Hemicellulose and lignin content of affected wood were found 5.5 and 7.5% lower than those of sound wood respectively. The causal agent of massive mortality brought about these differences on account of the degradation and decomposition of lignin and hemicellulose.

Downloads

Download data is not yet available.

References

Blanchette, R.A. and Abad. A.R., 1988. Ultrastructural localization of hemicellulose in birch wood (Betula papyrifera) decayed by brown- and white-rot fungi. Holzforschung, 42(6): 393-398.

Blanchette, R.A., Abad, A.R., Farrell, R.L. and Leathers, T.D., 1989. Detection of lignin peroxidase and xylanase by immunocytochemical labeling in wood decayed by basidiomycetes. Applied and Environmental Microbiology, 55(6): 1457-1465.

Browning, B.L., 1967. Methods of Wood Chemistry, Vol. 2. Wiley (Intrscience), New York, pp.561-587.

Cowling. E.B., 1961. Comparative biochemistry of the decay of sweetgum sapwood by white rot and brown rot fungi. USDA Technical Bulletin No. 1258.

Eaton, R.A. and Hale, M.D.C., 1993. Wood: Decay, Pest and Protection. Chapman and Hall, London, 90 pp.

Hoffmann, P. and Parameswaren, N., 1976. On the ultrastructural localization of hemicelluloses within delignified tracheids of spruce. Holzforschung, 30(2): 62-70.

Ruel, K.F. Barnoud, N. and Eriksson, K.E., 1981. Micromorphological and ultrastructural aspects of spruce-wood degradation by wild-type Sporotrichum pulverulentum and its cellulose-less mutant Cel 44. Holzforschung, 35(4): 157-171.

Troup, R.S., 1921. The Silviculture of Indian Trees. Vol. 1, Oxford at the Clarendon Press. 294p.

Walker, J.C.F., 1993. Primary Wood Processing: Principles and Practice. Chapman and Hall. 288p.

Zabel, R.L. and Morrell, J.J., 1992. Wood Microbiology: Decay and its Preservation. Academic Press Inc., New York and London, 230 pp.