| Autor: |
Mith, Hasika, Yayi-Ladékan, Eléonore, Sika Kpoviessi, Salomé Dosso, Yaou Bokossa, Innocent, Moudachirou, Mansourou, Daube, Georges, Clinquart, Antoine |
| Předmět: |
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| Zdroj: |
Journal of Essential Oil-Bearing Plants; Sep2016, Vol. 19 Issue 6, p1413-1425, 13p |
| Abstrakt: |
The chemical composition of essential oils obtained by hydrodistillation from aerial parts ofOcimum basilicum,Ocimum canumandOcimum gratissimumfrom Benin as affected by harvesting time, were analyzed by GC-FID (Gas chromatography-Flame ionization detector) and GC-MS (Gas chromatography-Mass spectrometry). Based on the composition analysis, major components were as follows: estragol (43.0–44.7%) and linalool (24.6–29.8%) inO. basilicumoils; carvacrol (12.0–30.8%) and p-cymene (19.5–26.2%) inO. canumoils; thymol (28.3–37.7%) and γ-terpinene (12.5–19.3%) inO. gratissimumoils. Disc diffusion and broth microdilution assays were used to evaluate the antibacterial activity of essential oils and their main components against two foodborne bacteria,Listeria monocytogenesandSalmonella entericaserotype Typhimurium. The tested oils and their components exhibited notable antimicrobial activities againstL. monocytogenesandS.Typhimurium. TheO. canumandO. gratissimumoils collected at 7h and 19h showed significant higher activities againstL. monocytogenesandS.Typhimurium (MICs and MBCs 0.34–2.5 μL/ mL) (p < 0.05), whereasO. basilicumshowed lower activity (MICs and MBCs 2.0–8.0 μL/mL) at any daytime of harvest, the weakest being at 19h (MIC and MBC 12.0–32.0 μL/mL). The daytime of harvest can influence the composition of oils and their activities on bacteria. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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