ISOLATED LIGNANS OF<i> ARAUCARIA</i><i> ARAUCANA</i> (MOLINA) K. KOCH PROVIDE WOOD PROTECTION AGAINST ATTACK BY THE XYLOPHAGOUS FUNGUS<i> PLEUROTUS</i><i> OSTREATUS</i> (JACQ.) P. KUMM

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dc.contributor.authorBravo-Arrepol, Gaston
dc.contributor.authorTorres, Solange
dc.contributor.authorPerez, Claudia
dc.contributor.authorGonzalez-Ramirez, Mariela
dc.contributor.authorFigueroa, Fabian
dc.contributor.authorCabrera-Barjas, Gustavo
dc.contributor.authorAranda, Mario
dc.contributor.authorTiezzi, Antonio
dc.contributor.authorGavin, Jose
dc.contributor.authorPaz, Cristian
dc.contributor.authorBecerra, Jose
dc.date.accessioned2025-01-20T17:14:10Z
dc.date.available2025-01-20T17:14:10Z
dc.date.issued2023
dc.description.abstractAraucaria araucana (Molina) K. Koch is an evergreen conifer endemic of Southern Chile and it is considered a sacred tree by the Pehuenche originary people. A. araucana is endangered in the red book. The knots wood of A. araucana are resistant to biological degradation, due to producing a high amount of lignans, even after the decomposition of the tree is possible to find its knots in the forest. In the present study the chemical composition of three wood tissue of A. araucana; knotwood, stemwood, and branches were analyzed by HPTLC-MS, GC-MS, and NMR. Three lignans were purified and identified as eudesmin (1), ((1S,2R,3R) 1,2,3,4tetrahydrona phthalene-2,3-diyl) dimethanol (2) and secoisolarisiresinol (3). Folin-Ciocalteu, DPPH and resistance to biodegradation assays were evaluated to extracts from compressed wood zones. Eudesmin was identified as the principal lignan in knots with a 0.5%w/w and outperformed the fungicide Nipacide (R) P511 in protecting wood against xylophage fungi Pleurotus ostreatus (Jacq.) P. Kumm.
dc.fuente.origenWOS
dc.identifier.issn0717-9707
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91280
dc.identifier.wosidWOS:001207287800007
dc.issue.numero2
dc.language.isoen
dc.pagina.final5875
dc.pagina.inicio5871
dc.revistaJournal of the chilean chemical society
dc.rightsacceso restringido
dc.subjectAraucaria araucana
dc.subjectlignan
dc.subjectknotwood composition
dc.subjecteudesmin
dc.subjectwood resistance
dc.subjectPleurotus ostreatus (Jacq.) P. Kumm
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleISOLATED LIGNANS OF<i> ARAUCARIA</i><i> ARAUCANA</i> (MOLINA) K. KOCH PROVIDE WOOD PROTECTION AGAINST ATTACK BY THE XYLOPHAGOUS FUNGUS<i> PLEUROTUS</i><i> OSTREATUS</i> (JACQ.) P. KUMM
dc.typeartículo
dc.volumen68
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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