In vitro antimicrobial and cytotoxic activity of Lippia origanoides essential oil against bacteria of potential health concern
biorxiv(2021)
摘要
Due to the growing resistance they develop of bacteria to drugs, the search for alternatives in natural products is considered important such as Lippia origanoides essential oil. Here, the antibacterial activity of the oil and two of its major chemical components were tested against bacteria of potential health concern. The cytotoxicity of these compounds was evaluated in human erythrocytes and Vero cells. 51 compounds were identified in the LOEO, being terpinen-4-ol, γ-Terpinene, citronellal and thymol the main. LOEO and thymol showed antibacterial activity from 904 μg/mL and 200 μg/mL, respectively. γ-Terpinene did not show activity any concentration tested. LOEO showed hemolysis at concentration of 3000 μg/mL and thymol at 100 μg/mL. LOEO and thymol showed cytotoxicity in the evaluated cell lines at 250 μg/mL and 100 μg/mL, respectively. These compounds have a moderate cytotoxicity so it’s considered necessary to study alternatives to reduce the in vitro cytotoxicity of these compounds.
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### Competing Interest Statement
The authors have declared no competing interest.
[1]: pending:yes
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