VOLUME 3, TOPIC 15
A. K. Mukerji1
WOOD AND BARK EXTRACTS OF TURKISH CONIFEROUS WOOD SPECIES
AS RAW MATERIAL FOR CHEMICALS
Harzemah HafÚzoXlu1
Most of Turkish coniferous wood
species, Pinus sylvestris, Pinus nigra, Pinus brutia,
Pinus pinea, Cedrus libani, Abies nordmanniana
and Picea orientalis, were investigated for wood
and bark extractives. The bark contains higher amounts of lipophilic extractives than the wood.
Fatty acids, resin acids and sterols are the main groups of lipophilic constituents. The pine species
contain higher amounts of lipophilic extractives than those of the other conifers. Cedar is
distinguished with its unique composition of lipophilic fraction consisting mainly of sesquiterpene
constituents. Also hydropphilic constituents, lignans and monosaccharides, occur both in the wood and in
the bark. The bark is very rich in phenolic constituents, mostly of a complex nature. Barks of fir
and spruce were investigated for their solubility values, phenolic character and suberin
composition. Possible uses of the extractives as chemical raw material are given.
1 Karaelmas University of Zonguldak, Faculty of Forestry,
BartÚn, Turkey
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