Gc-ms chemical characterization and in vitro evaluation of antioxidant and toxic effects using drosophila melanogaster model of the essential oil of lantana montevidensis (Spreng) briq

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Abstract

Background and objectives: Natural products such as essential oils with antioxidant potential can reduce the level of oxidative stress and prevent the oxidation of biomolecules. In the present study, we investigated the antioxidant potential of Lantana montevidensis leaf essential oil (EOLM) in chemical and biological models usingDrosophila melanogaster. Materials and methods: In addition, the chemical components of the oil were identified and quantified by gas chromatography coupled to mass spectrometry (GC-MS), and the percentage compositions were obtained from electronic integration measurements using flame ionization detection (FID). Results: Our results demonstrated that EOLM is rich in terpenes with Germacrene-D (31.27%) and β-caryophyllene (28.15%) as the major components. EOLM (0.12-0.48 g/mL) was ineffective in scavenging DPPH radical, and chelating Fe(II), but showed reducing activity at 0.24 g/mL and 0.48 g/mL. In in vivo studies, exposure of D. melanogaster to EOLM (0.12-0.48 g/mL) for 5 h resulted in 10% mortality; no change in oxidative stress parameters such as total thiol, non-protein thiol, and malondialdehyde contents, in comparison to control (p > 0.05). Conclusions: Taken together, our results indicate EOLM may not be toxic at the concentrations tested, and thus may not be suitable for the development of new botanical insecticides, such as fumigants or spray-type control agents against Drosophila melanogaster.

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De Oliveira, M. R. C., Barros, L. M., Duarte, A. E., De Lima Silva, M. G., Da Silva, B. A. F., Pereira Bezerra, A. O. B., … De Menezes, I. R. A. (2019). Gc-ms chemical characterization and in vitro evaluation of antioxidant and toxic effects using drosophila melanogaster model of the essential oil of lantana montevidensis (Spreng) briq. Medicina (Lithuania), 55(5). https://doi.org/10.3390/medicina55050194

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