Antifungal potential and chemical composition of Tagetes lunulata Ort. essential oil for the control of Trichophyton rubrum Malmsten

• Rodríguez-Juárez, Mitzy I. ^[1] ; Arjona-Suárez, Enriqueᵼ ^[1] ; Cadena-Íñiguez, Jorge ^[2] ; Guevara-Olivar, Brenda Karina ^[3] ; Ruiz-Posadas, Lucero del Mar ^[1]
  1. [1] Colegio de Postgraduados, Campus Montecillo
  2. [2] Colegio de Postgraduados, Campus San Luis
  3. [3] Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Aragón

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• Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 16, Nº. 12, 1, 2023 (Ejemplar dedicado a: Diciembre), págs. 119-126
• Idioma: inglés
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  • The essential oils of aromatic and medicinal plants are an important resource used to control several health conditions; however, information about their composition and antimicrobial activity is scarce. This study used a gas chromatography-mass spectrometry (GC-MS) to analyze the composition of the essential oil (EO) of Tagetes lunulata Ort., a Mexican endemic plant, known as wild cempaxúchitl. The major components of the EO include: verbenone (47.17%), α-pinene (10.93%), 1,1,1-Trifluoro-2-hexanone (9.63%), β-caryophyllene (6.10%), germacrene-D (4.99%), L-verbenone (4.89%), and E-tagetone (4.44%). The disk agar diffusion method was used to evaluate the antimicrobial activity of T. lunulata against Trichophyton rubrum (athlete's foot). A significant antimicrobial activity was observed with a ≥60% EO concentration. The dilution method was used to determine the minimum inhibitory concentration (MIC): 200 μg ml-1. The T. lunulata EO recorded a strong antimicrobial activity against T. rubrum; therefore, it is a natural alternative for the control of natural antifungals.