Chemical composition of oleo-gum-resin from Ferula gummosa

▶ Chemical composition of oleo-gum-resin from Ferula gummosa was assessed. ▶ β-Amyrin is the major triterpenoid. ▶ Oleo-gum-resin contains arabinogalactane structurally associated to protein complex. ▶ Arabinogalactan is ramified with terminal α-l-Araf and β-d-Glcp residues.