Composition and Antimicrobial Activity of the Essential Oils from the Leaves and Flowers of Lippia stachyoides var. martiana (Verbenaceae)±
Rafael F. Silva,
Claudia M. Rezende,
Hellen C. D. Santana,
Roberto F. Vieira,
Rosa B. N. Alves,
Daniela S. Alviano,
Celuta S. Alviano,
Marcelly C. S. Santos,
Humberto R. Bizzo.
The chemical composition of the essential oil from the leaves and flowers of
Lippia stachyoides var. martiana (Verbenaceae) from the Brazilian Cerrado was analyzed by GC/FID
and GC/MS. Fifty-seven and forty-one essential oil constituents were identified in the flowers and leaves,
respectively, being thirty-eight substances found in both oils. Flowers and leaves essential oils were rich in
(E)-nerolidol (15.6 and 16.4%), δ-cadinene (15.8 and 18.5%), spathulenol (8.1 and 16.4%), caryophyllene oxide (6.6 and
7.8%) and cubebol (8.5 and 7.4%), respectively. Both essential oils also showed promising results against yeast-like fungi
and bacteria. Good antifungal activity was observed for Cryptococcus neoformans, with MIC’s of 156 μg/ml and 78
μg/ml for flowers and leaves oils, respectively.
Keywords: Brazilian Cerrado, essential oil, gas chromatography, Lippia stachyoides var. martiana, Verbenaceae.
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