Journal
JOURNAL OF ESSENTIAL OIL BEARING PLANTS
Volume 24, Issue 1, Pages 40-52Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/0972060X.2020.1862711
Keywords
Cymbopogon densiflorus; essential oil; p-menthadienols; antimicrobial activity
Categories
Funding
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
Ask authors/readers for more resources
The essential oil from Brazilian Cymbopogon densiflorus flowers is mainly composed of compounds such as p-mentha-1(7),8-dien-2-ol and limonene, showing weak antioxidant activity and a broad spectrum of antimicrobial activity. It exhibited some efficacy against 7 out of the 10 tested pathogenic bacterial strains with the greatest inhibition observed with the Gram-negative bacterium Shigella sonnei.
This study reports, for the first time, the chemical composition and biological activity of essential oil from Brazilian Cymbopogon densiflorus flowers. Thirty chemical compounds were identified by gas chromatography coupled with mass spectrometry (GC/MS), corresponding to 95 % of total compounds from an essential oil chromatogram obtained by gas chromatography-flame ionization detection (GC-FID ). The essential oil was mainly composed of cis-p-mentha-1(7),8-dien-2-ol (26 %), trans-p-mentha-1(7),8-dien-2-ol (18 %), trans-p-mentha-2,8-dien-1-ol (13 %) limonene (9 %), cis-p-mentha-2,8-dien-1-ol (7 %), cis-carveol (7 %) and carvone (5 %). The identity confirmation of the major compounds was performed by H-1/C-13 heteronuclear single-quantum coherence nuclear magnetic resonance (HSQC NMR). The essential oil exhibited a weak antioxidant activity by the DPPH method and a wide spectrum of antimicrobial activity against the pathogenic bacterial strains tested, showing some efficacy against 7 of the 10 strains with the greatest inhibition observed with the Gram-negative bacterium Shigella sonnei.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available