Exploring the Bioactive Potential and Chemical Profile of <i>Schinus molle</i> Essential Oil: An Integrated <i>In Silico</i> and <i>In Vitro</i> Evaluation

Chilean <i>Schinus molle</i> has been used in traditional medicine for effects such as antibacterial, antifungal, anti-inflammatory, analgesic, antiviral, antitumoral, antioxidant, antispasmodic, astringent, antipyretic, cicatrizant, cytotoxic, diuretic, among others. In this study, we e...

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Main Authors: Rómulo Oses, Matías Ferrando, Flavia Bruna, Patricio Retamales, Myriam Navarro, Katia Fernández, Waleska Vera, María José Larrazábal, Iván Neira, Adrián Paredes, Manuel Osorio, Osvaldo Yáñez, Martina Jacobs, Jessica Bravo
Format: Article
Language:English
Published: MDPI AG 2025-08-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/14/15/2449
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Summary:Chilean <i>Schinus molle</i> has been used in traditional medicine for effects such as antibacterial, antifungal, anti-inflammatory, analgesic, antiviral, antitumoral, antioxidant, antispasmodic, astringent, antipyretic, cicatrizant, cytotoxic, diuretic, among others. In this study, we evaluated the pharmacological potential of <i>Schinus molle</i> seed essential oil extract (SM_EO) through <i>in vitro</i> and <i>in silico</i> approaches. <i>In vitro</i>, the antioxidant potential was analyzed, and antitumor activity was evaluated in non-tumor and human epithelial tumor cell lines. <i>Caenorhabditis elegans</i> was used as a model for evaluating toxicity, and the chemical composition of the SM_EO was analyzed using gas chromatography–mass spectrometry. The oil contained four major monoterpenes: α-phellandrene (34%), β-myrcene (23%), limonene (13%), and β-phellandrene (7%). Based on quantum mechanical calculations, the reactivity of the molecules present in the SM_EO was estimated. The results indicated that α- phellandrene, β-phellandrene, and β-myrcene showed the highest nucleophilic activity. In addition, the compounds following these as candidates for antioxidant and antiproliferative activities were α-phellandrene, β-phellandrene, ρ-cymene, sabinene, caryophyllene, l-limonene, and α-pinene, highlighting <i>β</i>-myrcene. Based on ADME-Tox properties, it is feasible to use these compounds as new drug candidates. Moreover, the antibacterial activity MIC value obtained for <i>B. cereus</i> was equivalent to 2 μg/mL, and for <i>Y. enterocolitica</i>, <i>S. enteritidis</i>, and <i>S. typhimurium</i>, the MIC value was 32.5 μg/μL. SM_EO could selectively inhibit the proliferation of human epithelial mammary tumor MCF7 cells treated with SM_EOs at 64 and 16 ug/mL—a significant increase in BCL-2 in a dose-dependent manner—and showed low toxicity against <i>Caenorhabditis elegans</i> (from 10 to 0.078 mg·mL<sup>−1</sup>). These findings suggest that SM_EO may be a potential source of bioactive compounds, encouraging further investigation for applications in veterinary medicine, cosmetics, and sanitation.
ISSN:2223-7747