Antimicrobial activity of essential oils obtained from aromatic plants of Argentina

Authors
Demo, Mirta Susana; Oliva, Maria de Las Mercedes; López, María Liza; Zunino, María Paula; Zygadlo, Julio Alberto
Publication Year
2005
Language
English
Format
article
Status
Published version
Description
The aim of this work was to evaluate the antibacterial and antifungal activity of essential oils obtained from medicinal plants of the Argentine Republic. The antimicrobial activity of the essential oils of 14 plants collected from different zones was analyzed. The microorganisms used were Staphylococcus aureus, Staphylococcus epidermidis, Bacillus cereus, Micrococcus luteus, Enterococcus faecalis, Escherichia coli, Klebsiella sp., Proteus mirabilis, Pseudomonas aeruginosa, and the yeast Candida albicans. The disk diffusion method was performed to test antimicrobial activity. B. cereus and S. aureus were inhibited by most of the essential oils. Aloysia triphylla, Psila spartoides, and Anemia tomentosa were the most effective compounds against B. cereus, while A. triphylla and Baccharis flabellata were effective against S. aureus. None of the oils inhibited P. aeruginosa. B. flabellata and Pectis odorata were active only against Gram-positive bacteria. A. triphylla and P. spartoides inhibited all tested microorganism, and the remaining essential oils showed variable activity. The minimum inhibitory concentration (MIC) of A. triphylla and P. spartoides essential oils were determined using the disk diffusion method. The lowest MICs were against S. aureus (1/16), B. cereus (1/16), 5. epidermidis (1/8), and C. albicans (1/32) for A. triphylla. The lowest MICs were against S. aureus (1/32), B. cereus (1/32), P. mirabilis (1/32), and C. albicans (1/64) with P. spartoides. The results showed that B. cereus and S. aureus were the most sensitive microorganisms, and P. aeruginosa was the most resistant microorganism. This study may contribute to improve ethnobotanical knowledge and would help to discover substances with potential therapeutical uses, as food preservants or as food-borne pathogen inhibitors.
Fil: Demo, Mirta Susana. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Oliva, Maria de Las Mercedes. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: López, María Liza. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Zunino, María Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Zygadlo, Julio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Subject
ANTIBACTERIAL ACTIVITY
ANTIFUNGAL ACTIVITY
ESSENTIAL OILS
NATURAL SUBSTANCES
Ciencias de las Plantas, Botánica
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/36986