Composition and antibacterial activities of essential oils of seven Ocimum taxa

Carović‐Stanko, Klaudija; Orlić, Sandi; Politeo, Olivera; Strikić, Frane; Kolak, Ivan; Miloš, Mladen; Šatović, Zlatko

doi:10.1016/j.foodchem.2009.06.010

Cited by 198 publications

(120 citation statements)

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“…Those obtained from O. canum in this study were much higher than those reported by Yayi et al, 18 and Verma et al, 27 (0.1-0.30 %) for the same species, but comparable to those of Burkina Faso and Comoro Islands (1.0-2.2 %) [28][29][30] . O. gratissimum contained higher oil yields than those reported by Kpoviessi et 5,7,27,32 . These essential oils did not contain compounds such as camphor and Emyroxide, which were previously reported as main constituents in plants from other countries 9,12 .…”

Section: Results and Discussion Ield And Chemical Composition Of Essementioning

confidence: 50%

“…Therefore, there is a need for natural alternatives. Essential oils, extracts or secondary metabolites from medicinal plants have been found to possess promising biological activities [5][6][7][8] . The genus Ocimum, belonging to the Lamiaceae family, contains approximately 50-150 species and is found in tropical and subtropical regions of Asia, Africa, and Central and South America 9 .…”

Section: Introductionmentioning

confidence: 99%

“…O. canum, hoary basil) and O. gratissimum (African basil) have been widely used as medicinal plants, culinary herbs and insect-controlling agents. The essential oils obtained by hydrodistillation or steam distillation from these aromatic and medicinal herbs were shown to possess good antimicrobial activities against a wide range of microorganisms 7,[9][10][11][12] and also antioxidant activities 10,13 . The biological activity of the essential oils depends on their chemical compositions, which could be influenced by several factors such as agronomic conditions 14 , genotypes of plants 15 , drying methods 16 , extraction methods 17 , geographical locations 18 and harvest seasons 10 .…”

Section: Introductionmentioning

confidence: 99%

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Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Mith

Yayi-Ladékan

Kpoviessi

et al. 2016

Journal of Essential Oil Bearing Plants

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Abstract:The chemical composition of essential oils obtained by hydrodistillation from aerial parts of Ocimum basilicum, Ocimum canum and Ocimum gratissimum from Benin as affected by harvesting time, were analyzed by GC-FID (Gas chromatography-Flame ionization detector) and GC-MS (Gas chromatographyMass spectrometry). Based on the composition analysis, major components were as follows: estragol (43.0 -44.7 %) and linalool (24.6 -29.8 %) in O. basilicum oils; carvacrol (12.0 -30.8 %) and p-cymene (19.5 -26.2 %) in O. canum oils; thymol (28.3-37.7 %) and γ-terpinene (12.5-19.3 %) in O. gratissimum oils. 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 monocytogenes and Salmonella enterica serotype Typhimurium. The tested oils and their components exhibited notable antimicrobial activities against L. monocytogenes and S. Typhimurium. The O. canum and O. gratissimum oils collected at 7h and 19h showed significant higher activities against L. monocytogenes and S. Typhimurium (MICs and MBCs 0.34 -2.5 μL/ mL) (p < 0.05), whereas O. basilicum showed 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.

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Section: Results and Discussion Ield And Chemical Composition Of Essementioning

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Mith

Yayi-Ladékan

Kpoviessi

et al. 2016

Journal of Essential Oil Bearing Plants

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“…Although the EOs showed antimicrobial activity, the reason behind this capacity is not well documented. This antimicrobial activity could be caused by the major compounds of the EOs or due to a synergistic effect between the major compounds and the minor ones (Carović-Stanko et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Essential oil ofPsidium cattleianumleaves: Antioxidant and antifungal activity

Castro

Victoria

Hartwig

et al. 2014

Pharmaceutical Biology

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Context: Psidium cattleianum Sabine (Myrtacea) is rich in vitamin C and phenolic compounds, including epicatechin and gallic acid as the main components. Objective: To evaluate the antifungal and antioxidant capacity in vitro of the essential oil of araçá (EOA). The acute toxicity of the EOA also was evaluated in mice. Materials and methods: The leaves of the P. cattleianum were extracted by steam distillation. The antioxidant capacity was evaluated by in vitro tests [1,1-diphenyl-2-picryl-hydrazyl (DPPH), 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonate) (ABTS), ferric ion reducing antioxidant power (FRAP), linoleic acid oxidation, thiobarbituric acid reactive species (TBARS)], and ex vivo analysis [TBARS, d-aminulevunilate dehydratase (d-Ala-D) and catalase activity, non-protein thiols (NPSH), and ascorbic acid levels]. The toxicity was studied in mice by a single oral administration of EOA; and the antifungal activity was performed with five strains of fungi. Results: The EOA exhibited antioxidant activity in the FRAP assay and reduced lipid peroxidation in the cortex (I max ¼ 32.90 ± 2.62%), hippocampus (IC 50 ¼ 48.00 ± 3.00 mg/ml and I max ¼ 32.90 ± 2.62%), and cerebellum (I max ¼ 45.40 ± 14.04%) of mice. Acute administration of the EOA by the oral route did not cause toxicological effects in mice (LD 50 4500 mg/ml). The EOA also showed antifungal activity through of the determination minimum inhibitory concentration (MIC) values ranging from 41.67 ± 18.04 to 166.70 ± 72.17 mg/ml for tested strains. Conclusion:The results of present study indicate that EOA possess antioxidant properties, antifungal and not cause toxicity at tested doses.

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“…Commercial ampicillin (10μg disc -1 ) and chloramphenicol (30μg disc -1 ) discs were used as reference antibiotics. The diameter of inhibition zones, including the disc diameter, was measured in millimeters, and inhibition was scored as weak (10-13,9mm), moderate (14-18mm), or strong (>18mm) according to Carovic-Stanko (2010). Tests were performed in quadruplicate.…”

Section: Gas Chromatography (Gc/fid)mentioning

confidence: 99%