Extractives of Stemwood and Sawmill Residues of Scots Pine (Pinus sylvestris L.) for Biorefining in Four Climatic Regions in Finland—Phenolic and Resin Acid Compounds

Show full item record



Permalink

http://hdl.handle.net/10138/327145

Citation

Verkasalo, E.; Möttönen, V.; Roitto, M.; Vepsäläinen, J.; Kumar, A.; Ilvesniemi, H.; Siwale, W.; Julkunen-Tiitto, R.; Raatikainen, O.; Sikanen, L. Extractives of Stemwood and Sawmill Residues of Scots Pine (Pinus sylvestris L.) for Biorefining in Four Climatic Regions in Finland—Phenolic and Resin Acid Compounds. Forests 2021, 12, 192.

Title: Extractives of Stemwood and Sawmill Residues of Scots Pine (Pinus sylvestris L.) for Biorefining in Four Climatic Regions in Finland—Phenolic and Resin Acid Compounds
Author: Verkasalo, Erkki; Möttönen, Veikko; Roitto, Marja; Vepsäläinen, Jouko; Kumar, Anuj; Ilvesniemi, Hannu; Siwale, Workson; Julkunen-Tiitto, Riitta; Raatikainen, Olavi; Sikanen, Lauri
Publisher: Multidisciplinary Digital Publishing Institute
Date: 2021-02-07
URI: http://hdl.handle.net/10138/327145
Abstract: This study aimed to identify and quantify phenolic and resin acid extractive compounds in Scots pine stemwood and sawmill residues in four climatic regions of Finland to evaluate their most optimal sources for bio-based chemical biorefining and bioenergy products. The sample consisted of 140 trees from 28 stands, and sawdust lots from 11 log stands. NMR for the overall extractive analysis and HPLC for the quantitative estimation of phenolic and resin acid compounds were employed. Correlation analysis, multivariate factor analysis, principle component analysis and multiple linear regression modelling were applied for statistical analysis. HPLC identified 12 extractive compounds and NMR five more resin acids. Pinosylvin (PS), pinosylvin monomethyl ether (PSMME), and partly neolignans/lignans occurred in the largest concentrations. Wood type caused the most variation, heartwood having larger concentrations than sapwood (sawdust between them). Regional differences in the concentrations were smaller, but factor analysis distinguished the northern and the southern regions into their own groups. The results indicated higher concentrations of PS, PSMME, and vanillic acid in southern regions and those of, e.g., PSMME glycoside, lignan 2, and neolignan 1 in northern regions. The rather low concentrations of extractives in stemwood and sawdust imply value-added products, efficient sorting and/or large raw material volumes.


Files in this item

Total number of downloads: Loading...

Files Size Format View
forests-12-00192.pdf 2.666Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record