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    Essential Oils of Rosmarinus officinalis and Eucalyptus globulus Cultivated in the Mountainous Region of the State of Rio de Janeiro (Brazil): Chemical Profile and Antileishmanial Activity

    Rogéria Cristina Zauli1,2,3, Tarcísio Martins Santos4, Alberto Wisniewski Jr4, Patrícia Xander1,3, Aislan Cristina Rheder Fagundes Pascoal5★★ Corresponding author

    1. 1Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Laboratory of Cellular Immunology and Biochemistry of Fungi and Protozoa, Federal University of São Paulo, Diadema, São Paulo, BRAZIL.
    2. 2Technical Support Center for Teaching, Research and Extension (NATEPE), Federal University of São Paulo, Campus Diadema, Diadema, São Paulo, BRAZIL.
    3. 3Biology-Chemistry Graduate Program, Federal University of São Paulo, Campus Diadema, Diadema, São Paulo, BRAZIL.
    4. 4Department of Chemistry, Federal University of Sergipe, Av. Marechal Rondon, São Cristóvão, SE, BRAZIL.
    5. 5Department of Basic Sciences, Multi-user Biomedical Research Laboratory, Fluminense Federal University (ISNF-UFF), Nova Friburgo, Rio de Janeiro, BRAZIL.

    CORRESPONDENCE

    Aislan Cristina Rheder Fagundes Pascoal

    Department of Basic Sciences, Multi-user Biomedical Research Laboratory, Fluminense Federal University (ISNF-UFF), Nova Friburgo, Rio de Janeiro, BRAZIL.

    aislanfagundes@id.uff.br

    Received: 18-12-2022; Revised: 29-12-2022; Accepted: 11-01-2023.

    Volume 15, Issue 2 · pp. 297–306 · PUBLISHED · DOI: 10.5530/pres.15.2.032

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    The present study aimed to characterize the chemical profile of essential oils of Rosmarinus officinalis (EORo) and Eucalyptus globulus (EOEg) cultivated in the mountainous region of the state of Rio de Janeiro, Brazil, and to verify the leishmanicidal potential, as well as to determine the cytotoxicity in vitro in mammalian cells. EORo had α-Pinene (37.99%), Cineol (21.48%), D-Verbenone (5.78%) and Limonene (3.28%) as major constituents. The EOEg had as major components Cineol (75.52%), Limonene (8.82%) and o-Cymeno (7.81%). The EOEg had a lower IC50 value of 14.03 ± 2.08 μg/mL, while EORo had an IC50 value of 31.12 ± 4.6 μg/mL, both during the 24-hr exposure period. In the 48-hr period, the IC50 value was almost twice as high with rosemary oil, while in eucalyptus oil there was no significant difference when exposed in this period. The selectivity of EOs was demonstrated in murine cells, showing almost 30 times less toxic to the cell than to the parasite. It can be concluded that this is a pioneering study on the potential of these essential oils against the leishmania parasite. Furthermore, the low toxicity effect on the host cell encourages future studies and in vivo applications.

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      Zauli, R. C., Santos, T. M., Jr, A. W., Xander, P., & Pascoal, A. C. R. F. (). Essential Oils of Rosmarinus officinalis and Eucalyptus globulus Cultivated in the Mountainous Region of the State of Rio de Janeiro (Brazil): Chemical Profile and Antileishmanial Activity. Pharmacognosy Research, 15(2), 297–306. https://doi.org/10.5530/pres.15.2.032