Wood resin in bigtooth and quaking aspen wood and knots

Suvi Pietarinen*, Jarl Hemming, Stefan Willför, Frank Vikström, Bjarne Holmbom

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)


The lipophilic extractives, that is, wood resin, in Populus grandidentata (bigtooth aspen) and Populus tremuloides (quaking aspen) sapwood, heartwood, and knots were analyzed. The amount and composition of the extractives in sapwood were similar in both species. Triglycerides, short-chain fatty acids, and steryl esters were predominant in sapwood samples. The knots of both species contained similar amounts of extractives as the stemwood, but the composition was quite different. Monoglycerides; long-chain fatty acids and alcohols, with 22 to 28 carbon atoms; hydroxy fatty acids; and ferulic acid esters of fatty alcohols were the major components in heartwood and knots, but were minor components in the sapwood.

Original languageEnglish
Pages (from-to)27-39
Number of pages13
JournalJournal of Wood Chemistry and Technology
Issue number1-2
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed


  • Aspen
  • Heartwood
  • Knots
  • Lipophilic extractives
  • Populus grandidentata
  • Populus tremuloides
  • Sapwood


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