Abstract

To investigate the potential for Scots- and lodgepole pine for biorefinery applications such as e.g., biodiesel and glue production, wood samples from five different sites in northern Sweden were compared. 21 fatty and 10 resin acids were detected by extraction and GC MS analysis. Total fatty- and resin acid contents of Scots pine varied between 2.4 and 41.4 mg/g. Corresponding concentrations for lodgepole pine were 23 and 26.0 mg/g of dry material. Multivariate models were made with principal component analysis to take advantage of the multivariate correlations between the individual acids. Wood tissue type explained most of the variation in fatty and resin acid content, with heartwood having up to five times the extractive concentration of sapwood. Resin acids were mainly associated with heartwood, while fatty acids were more associated with sapwood. A five-component PLSDA-model distinguished between the two species, mainly due to differences in their hexadecanoic and heptadecanoic acid contents. Heartwood from Scots pine is more suitable for resin extraction while lodgepole pine is a better option for fatty- and resin acid extraction because of the extractives' evenly distribution between wood types. Around 150 kg of fatty acids and 1 ton of resins can be harvested per hectare from a typical mature boreal lodgepole pine stand, for biorefinery use. Systematic fractionation and selection of heartwood and sapwood will likely optimize industrial applications (e.g. biodiesel production) of each fraction. (C) 2013 Elsevier B.V. All rights reserved.

Keywords

Heartwood; Sapwood; Multivariate data analyses; Pinus contorta; Pinus sylvestris; ANOVA

Published in

Industrial Crops and Products
2013, Volume: 49, pages: 535-541
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Arshadi, Mehrdad

  • Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
    

• Backlund, Ingegerd

  • Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
    

• Geladi, Paul

  • Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
    

• Bergsten, Urban

  • Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Forest Science
Organic Chemistry


Publication identifier

DOI: https://doi.org/10.1016/j.indcrop.2013.05.038

Permanent link to this page (URI)

https://res.slu.se/id/publ/53214