Secondary metabolites of Bagassa guianensis Aubl. wood: A study of the chemotaxonomy of the Moraceae family

Mariana Royer (1) , Gaëtan Herbette (2) , Véronique Eparvier (1) , Jacques Beauchêne (1) , Bernard Thibaut (1) , Didier Stien (1)

1 ECOFOG - Ecologie des forêts de Guyane
2 AMU SPEC - Spectropôle - Aix Marseille Université

In order to explain the durability of the Moraceae plant family, phytochemistry of Bagassa guianensis was performed. Ethyl acetate extract was obtained from the heartwood and 18 secondary metabolites were isolated, including 6 moracins [6-O-methyl-moracin M, 6-O-methyl-moracin N and moracin Z; previously identified: moracin M, moracin N and moracin P], 8 stilbenoids [presently identified: ( )-epialboctalol and arachidin 4; previously identified: alboctalol, trans-resveratrol, arachidin 2, trans-oxyresveratrol and artogomezianol], 3 previously identified flavonoids, steppogenin, katuranin and dihydromorin, bsitosterol and resorcinol. Previous studies suggest that stilbenoids are responsible for the natural durability of wood. Our study has determined that B. guianensis is closely related to Morus sp. in phylogeny and should be included in the Moreae sensu stricto tribe of the Moraceae family.

Mots clés: Bagassa guianensis; Moraceae; Secondary metabolites; Stilbenes; Moracins; Flavonoids; Natural durability

Domaines: Matériaux

Mariana Royer, Gaëtan Herbette, Véronique Eparvier, Jacques Beauchêne, Bernard Thibaut, et al.. Secondary metabolites of Bagassa guianensis Aubl. wood: A study of the chemotaxonomy of the Moraceae family. Phytochemistry, 2010, 71, pp.1708-1713. ⟨10.1016/j.phytochem.2010.06.020⟩. ⟨hal-00857200⟩