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Holz als Roh- und Werkstoff

, Volume 65, Issue 1, pp 1–6 | Cite as

Antioxidant flavonoids from knotwood of Jack pine and European aspen

  • M. Neacsu
  • P. C. Eklund
  • R. E. Sjöholm
  • S. P. Pietarinen
  • M. O. Ahotupa
  • B. R. Holmbom
  • S. M. WillförEmail author
ORIGINALARBEITEN ORIGINALS

Abstract

Flavonoids have recently been found in large amounts in knotwood and stemwood of several tree species. Six flavonoids, two flavonoid glucosides, and one cinnamic acid derivative were isolated from Jack pine and European aspen knotwood and structurally characterised using GC-MS, HR-MS, and NMR spectroscopic analyses. Isolated compounds were further assessed on basis of their potency to inhibit lipid peroxidation and scavenge peroxyl radicals. All tested compounds possessed antioxidant properties close to that of the reference compound Trolox.

Keywords

Trolox Naringenin Propolis Inhibit Lipid Peroxidation Taxifolin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Antioxidative Flavonoide aus dem Astholz von Jack Pine und Aspe

Zusammenfassung

Im Ast- und Stammholz verschiedener Baumarten hat man in jüngerer Zeit größere Mengen von Flavonoiden gefunden. Sechs Flavonoide, zwei Flavonoidglykoside und ein Zimtsäurederivat wurden aus dem Astholz von Jack Pine und Aspe isoliert und mittels GC-MS, HR-MS und NMR Spektralanalysen strukturell bestimmt. Ausgehend von deren Potential, eine Lipidperoxidation zu hemmen und Peroxylradikale abzufangen, wurden die isolierten Verbindungen weiter untersucht. Alle untersuchten Verbindungen verfügten über antioxidative Eigenschaften, die denjenigen der Referenzverbindung Trolox weitgehend entsprachen.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • M. Neacsu
    • 1
  • P. C. Eklund
    • 2
  • R. E. Sjöholm
    • 2
  • S. P. Pietarinen
    • 3
  • M. O. Ahotupa
    • 4
  • B. R. Holmbom
    • 3
  • S. M. Willför
    • 3
    Email author
  1. 1.Department of Chemistry and BiochemistryUniversity of Agricultural Sciences and Veterinary Medicine Cluj-NapocaCluj-NapocaRomania
  2. 2.Laboratory of Organic ChemistryProcess Chemistry Centre, Åbo Akademi UniversityTurku/ÅboFinland
  3. 3.Laboratory of Wood and Paper ChemistryProcess Chemistry Centre, Åbo Akademi UniversityTurku/ÅboFinland
  4. 4.BioCity B 4MCA Research LaboratoryTurku/ÅboFinland

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