Extractives of Turkish and Pakistani tree species
Willfor, S. and Hafizoglu, H. and Tumen, I. and Yazici, H. and Arfan, M. and Ali, M. and Holmbom, B.
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The composition and amount of hydrophilic and lipophilic extractives in knots and stemwood of eight Turkish and one Pakistani tree species were analysed. Lignans were the main polyphenols in most studied species and pinosylvins in the pines. The two studied juniper species contained no or only little lignans. Most species also contained juvabiones or phenolic diterpenoids. Both polyphenols and lipophilic extractives were more abundant in the knots than in the sternwood.