The essential oil of Blumea eriantha DC. (Asteraceae) herb (leaves and stems) (BEHO) and roots (BERO) was obtained by hydro-distillation and analyzed by GC-FID and GC-MS. The chemical constituents of BEHO and BERO were identified according to their mass spectra and relative retention indices. Fifty-two and thirty-eight compounds were identified, comprising 97.1% and 95.5% of the BEHO and BERO, respectively. The prodigious differences were observed in the major constituents of BEHO and BERO. The major compounds were chrysanthenone (52.8%) and 2,4-dimethylether phloroacetophenone (15.1%) (BEHO), 2,5-dimethoxy-p-cymene (31.3%), epi-α-cadinol (12.7%) and γ-cadinene (10.5%) (BERO). The BEHO found a higher concentration of oxygenated monoterpenes, while BERO with phenyl derivatives type of constituents.
Keywords: 2,5-dimethoxy-p-cymene; Blumea eriantha DC; Chrysanthenone; GC–MS; essential oil constituents.