Eriksson, Daniel
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
Research article2018Peer reviewedOpen access
Eriksson, Daniel; Arshadi, Mehrdad; Kataria, Rashmi; Bergsten, Urban
The objectives were to determine the content and composition of lipophilic extractives, particularly fatty and resin acids, in three Scots pine trees from each of two stands in northern Sweden, one that was due for thinning and one due for final cutting. Extractives content of branches, needles, barks, stem discs from branch whorls, and sapwood and heartwood samples from various heights was measured. Fractions had very different concentrations and distributions of extractives due to differences in the composition of tissues. The needles had the highest total extractive concentration (around 150kg/ton d.w.), followed by the branches, bark, timber from the final cut stand, and then the pulpwood and timber from the thinning stand. The final cut stand generally provided higher yields of extractives in assortments per hectare than the thinning stand; the difference was five-fold for timber, three-fold for whole trees, two-fold for branches, needles and bark and similar for pulpwood. This information on the content and composition of extractives in different tissues, and the dependence of these quantities on tree age could be used together with information on conventional stand data such as tree numbers and dimensions to guide the selection and management of feedstocks for biorefineries.
Fatty; resin acid; forestry assortment; Scots pine; physical characterization; chemical characterization
Scandinavian Journal of Forest Research
2018, Volume: 33, number: 6, pages: 594-602 Publisher: TAYLOR & FRANCIS AS
Other Chemical Engineering
DOI: https://doi.org/10.1080/02827581.2018.1434235
https://res.slu.se/id/publ/96137