Antimicrobial activity and chemical composition of essential oil of Pelargonium odoratissimum

Abstract

Abstract:The chemical composition of the essential oil from the leaves of Pelargonium odoratissimum (L.) L'Hér., Geraniaceae, was determined and the antimicrobial activities against the Aspergillus flavus CML 1816, Aspergillus carbonarius CML1815 and Aspergillus parasiticus CMLA 817 fungi, as well the Staphylococcus aureus ATCC 25923 and Escherichia coli ATCC 25 992 bacteria were evaluated. The essential oil was isolated by steam distillation using a modified Clevenger apparatus, and its constituents were identified and quantified by GC/MS and GC-FID analyses. In vitro bioanalytical testing was performed using a completely randomized design. The concentrations of essential oil employed ranged from 0.1 to 2 µL.mL -1 (in dimethyl sulfoxide) for the fungus species and from 1 to 500 µL.mL -1 for the bacteria. The diameters of the inhibition zones formed for bacteria and the mean diameters of mycelial growth in perpendicular directions for fungi were measured, followed by calculation of the percentage of inhibition. The essential oil from the leaves of P. odoratissimum furnished methyleugenol (96.80%), a phenylpropanoid. This essential oil inhibited the growth of fungi (100% inhibition) and exhibited a small effect on the bacteria at the concentrations tested.

Bactericidal and Antioxidant Activity of Essential Oils from Myristica fragrans Houtt and Salvia microphylla H.B.K

“…Tripticase soy agar (TSA) [6] culture medium was used to test L. monocytogenes, L. innocua and A. hydrophyla. The Mueller-Hinton [7] culture medium was used to test all other cultures. Initially, a thin layer of agar-culture medium inoculated with 10 7 CFU/mL of bacteria was poured into Petri dishes of 15 cm in diameter.…”

Fitotoxicidad De Aceites Esenciales Y Extractos Acuosos De Plantas Mediterráneas Para El Control De Arvenses

“…odoratissimum es una planta aromática con propiedades astringentes, tónicas y antisépticas (Grieve, 1984;Bown, 1995), de la que existe poco conocimiento técnico y científico (Andrade et al, 2011). Se han llevado a cabo estudios para analizar la composición de su aceite esencial y determinar sus propiedades biológi-cas (Salamone et al, 2010).…”

“…Metileugenol, limoneno y fenchona fueron los componentes mayoritarios del aceite esencial de hojas de P. odoratissimum cultivado en el Reino Unido, verificándose in vitro que dicho aceite ejercía un efecto espasmolí-tico postsináptico sobre el músculo liso, lo que hace recomendable su uso como agente relajante en productos para aromaterapia (Balchin y Roth, 2000), además de mostrar actividad antibacteriana. El aceite esencial de hojas de P. odoratissimum de Brasil contenía un 96.8% de metileugenol, mostrando fuerte actividad antifúngi-ca y escasa antibacteriana (Andrade et al, 2011).…”

Phytochemical Screening and Antibacterial Activity of Menthe Piperita, Artemisa Compestris L and Pelargonium Adoraitissimum Leaves Extracts from North Libya

“…The Pelargonium adoraitissimum belongs to Geraniaceae family and represents important sources of food, medicines and cosmetics and of distilled volatile oils [23][24][25][26][27]. These genera have been found to possess significant pharmacological and biological activities, including antioxidant, anti-neuroinflammatory, antiinfluenza, anticancer, antimicrobial and antifungal activity [23,24,[27][28][29][30]. It is used in folk medicine in Libya and in the world.…”