Prodigious chemotypic variance in essential oil constituents of Blumea eriantha DC. herb and root

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.