Composition and antibacterial activity of essential oils obtained from plants of the Lamiaceae family against pathogenic and beneficial bacteria
Lina P Roldán, Jesús García Díaz, Jennifer M. Duringer
Dialnet (Universidad de la Rioja)
Abstract
The qualitative composition and antibacterial activity of six essential oils obtained from plants\ncultivated in the Colombian Andes (Mentha spicata, Mentha piperita, Ocimum basilicum, Salvia officinalis,\nRosmarinus officinalis and Thymus vulgaris) and a commercial essential oil of Origanum vulgare subsp.\nhirtum were investigated. The essential oil composition was determined by gas chromatography-mass\nspectrometry (GC-MS), while the antibacterial activity of the essential oils against Escherichia coli,\nSalmonella enteritidis, Salmonella typhimurium, Lactobacillus acidophilus and Bifidobacterium breve\nwas measured as the minimum bacte icidal concentration (MBC) using the agar dilution method. The\nchemical analysis revealed the presence of 16-28 compounds in each oil, corresponding mainly to phenols,\noxygenated and hydrocarbon monoterpenes. O. vulgare and T. vulgaris oils were active at low MBCs\n(MBC . 5 mg/ml) against all bacteria evaluated, including beneficial microorganisms. In contrast, O.\nbasilicum oil was more active against pathogenic bacteria (MBCs . 10mg/ml) than beneficial bacteria\n(MBCs of 80 mg/ml). The present study shows that the antimicrobial potential of essential oils depends not\nonly on the chemical composition of the oil but also on the targeted microorganism. This has important\npractical implications for essential oils intended to be used as feed additives with antibacterial properties\nfor animal nutrition or pharmaceutical products with natural compounds.
Extracted Claims
4 claims extracted from this paper into the knowledge graph
T. vulgaris oil inhibits bacteria
“O. vulgare and T. vulgaris oils were active at low MBCs (MBC < 5 mg/ml) against all bacteria evaluated, including beneficial microorganisms.”
O. vulgare oil inhibits bacteria
“O. vulgare and T. vulgaris oils were active at low MBCs (MBC < 5 mg/ml) against all bacteria evaluated, including beneficial microorganisms.”
O. basilicum oil inhibits pathogenic bacteria
“O. basilicum oil was more active against pathogenic bacteria (MBCs < 10 mg/ml) than beneficial bacteria (MBCs of 80 mg/ml).”