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- Title
Chemical Composition and Biological Activities of Oregano and Lavender Essential Oils.
- Authors
Benbrahim, Chahla; Barka, Mohammed Salih; Basile, Adriana; Maresca, Viviana; Flamini, Guido; Sorbo, Sergio; Carraturo, Federica; Notariale, Rosaria; Piscopo, Marina; Khadir, Abdelmounaim; Zatout, Asma; Mechaala, Sara
- Abstract
Folk medicine uses wild herbs, especially from the Lamiaceae family, such as oregano and lavender, in the treatment of many diseases. In the present study, we investigated the antibacterial activity of the essential oils of Origanum glandulosum Desf. and Lavandula dentata L. against multidrug-resistant Klebsiella pneumoniae strains. The chemical composition of essential oils and their effect on the ultrastructure of the tested bacteria and on the release of cellular components that absorb at 260 nm were studied. Furthermore, the cytotoxicity and the production of reactive oxygen species in human lymphocytes treated with essential oils were evaluated. Thymol (33.2%) was the major constituent in O. glandulosum, and β-pinene (17.3%) was the major constituent in L. dentata. We observed ultrastructural damage in bacteria and increased release of cellular material. Furthermore, ROS production in human lymphocytes treated with essential oils was lower than in untreated lymphocytes and no cytotoxicity was observed. Therefore, the essential oils of lavender and oregano could be used as a source of natural antibacterial and antioxidant agents with potential pharmacological applications.
- Subjects
LAVENDERS; OREGANO; ESSENTIAL oils; REACTIVE oxygen species; CELL anatomy; KLEBSIELLA pneumoniae; TRADITIONAL medicine
- Publication
Applied Sciences (2076-3417), 2021, Vol 11, Issue 12, p5688
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app11125688