TITLE:
Chemical Composition and Antioxidant DPPH Activity of the Floral and Leaves Essential Oils of cMontanoa speciosa DC
AUTHORS:
Durcy Ruiz-Ciau, Luis Cuevas-Glory, Leovigildo Quijano, Enrique Sauri-Duch
KEYWORDS:
Montanoa speciosa, Asteraceae, Essential Oil Composition, DPPH Assay
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.8 No.4,
March
20,
2017
ABSTRACT: The essential oils obtained by hydrodistillation
from leaves and flowers of Montanoa
speciosa collected in southeastern Mexico (Yucatan) were analyzed by GC-MS.
A total of 71 and 79 components, representing 98.44% and 97.69% of the leaf and
flower oils, respectively, were characterized. The main constituents found were β-caryophyllene
(20.73%, 17.95%), δ-cadinene (9.88%, 9.28%), caryophyllene oxide (9.48%, 8.68%), and germacrene D
(6.94%, 5.85%). The essential oils were screened for their antioxidant
potentials by DPPH assay. The leaves oil
exhibited higher DPPH scavenging capability (72.85 ± 0.28 mmol TE/g
essential oil and 147.83 ± 0.41 mg/mL Vit C/g essential oil) than the floral
oil (68.43 ± 0.10 mmol TE/g essential oil and 131.59 ± 0.87 mg/mL Vit C/g essential
oil).