Abstract
The chemical analysis of the compounds present in dichloromethane and ethanolic fractions as well as bioassays enable to understand the differences in the durability of Eperua falcata and Eperua grandiflora. The main distinction between these two species is the acidic subfraction of diterpenoid extract, which is antifungal in Eperua falcata when tested under in-vitro conditions. This study also shows that ethanolic fraction plays an important role in the mechanism of natural durability. Furthermore, it reports the first isolation of cativic acid in Eperua falcata wood.
Zusammenfassung
Anhand chemischer Analyse der in Dichlormethan- und Ethanolfraktionen vorhandenen Verbindungen sowie biologischer Prüfungen können die Unterschiede in der Dauerhaftigkeit von Eperua falcata und Eperua grandiflora aufgezeigt werden. Der Hauptunterschied zwischen den beiden Arten besteht in der sauren Fraktion des Diterpenoid-Extraktstoffes, der sich bei Prüfungen unter in-vitro Bedingungen bei Eperua falcata als pilzwidrig erwies. Anhand dieser Arbeit konnte auch gezeigt werden, dass die Ethanolfraktion eine wichtige Rolle bezüglich der natürlichen Dauerhaftigkeit spielt. Darüber hinaus wird über die erstmalige Isolierung von Cativinsäure aus Eperua falcata Holz berichtet.
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Amusant, N., Moretti, C., Richard, B. et al. Chemical compounds from Eperua falcata and Eperua grandiflora heartwood and their biological activities against wood destroying fungus (Coriolus versicolor) . Holz Roh Werkst 65, 23–28 (2007). https://doi.org/10.1007/s00107-006-0120-1
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DOI: https://doi.org/10.1007/s00107-006-0120-1