title: Screening analyses of pinosylvin stilbenes, resin acids and lignans in Norwegian conifers.
abstract: The content and distribution of stilbenes and resin acids in Scots pine (Pinus sylvestris) and spruce (Picea abies), sampled in central Norway, have been examined. The contents of pinosylvin stilbenes in pine heartwood/living knots were 0.2-2/2-8 %(w/w). No stilbenes could be detected in spruce (Picea abies). The resin acid contents of pine sapwood/heartwood and knots were 1-4 and 5-10 % (w/w), respectively. Minor amounts of resin acids (<0.2/<0.04 %w/w) were identified in spruce wood/knots. The lignan content in knots of Norwegian spruce was 6.5 % (w/w). Diastereomerically pure hydroxymatairesinol (HMR, 84 % of total lignans) was readily isolated from this source since only minor quantities (2.6 % of total lignans) of the allo-HMR diastereomer was detected. Insignificant amounts of lignans were present in the sapwood. Lignans could not be detected in the sapwood or knots of Norwegian sallow (Salix caprea), birch(Betula pendula) or juniper (Juniperus communis).
authors.affiliation: Paper and Fibre Institute (PFI), Høgskoleringen 6B, NO-7491 Trondheim, Norway.
authors.forename: Hanne
authors.initials: H
authors.lastname: Hovelstad
authors.forename: Ingebjorg
authors.initials: I
authors.lastname: Leirset
authors.forename: Karin
authors.initials: K
authors.lastname: Oyaas
authors.forename: Anne
authors.initials: A
authors.lastname: Fiksdahl
mesh_terms: D000143:Acids / Q000032:analysis* / Q000737:chemistry; D002622:Chemistry, Agricultural; D017705:Lignans / Q000032:analysis* / Q000737:chemistry; D008954:Models, Biological; D012116:Resins, Plant / Q000032:analysis* / Q000737:chemistry; D013267:Stilbenes / Q000032:analysis* / Q000737:chemistry; D013997:Time Factors; D064028:Tracheophyta / Q000737:chemistry*; D000094162:Phytoalexins
chemical_list: D000143:Acids; D017705:Lignans; D012116:Resins, Plant; D013267:Stilbenes; C049032:pinosylvin; D000094162:Phytoalexins