Chemical Composition and Antibacterial Activities of Eight Plant Essential Oils from Morocco against Escherichia coli Strains Isolated from Different Turkey Organs

Jaber, Hassna; Oubihi, Asmaa; Ouryemchi, Imane; Boulamtat, Rachid; Oubayoucef, Ali; Bourkhiss, Brahim; Ouhssine, Mohammed

doi:10.1155/2021/6685800

Cited by 22 publications

(16 citation statements)

References 63 publications

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“…Moreover, Acinetobacter baumannii, Klebsiella pneumonia, Escherichia coli and Enterobacter cloacae were found non-sensitive to the studied essential oil components. In agreement, several studies demonstrate that Gram-positive bacteria are more sensitive to the actions of the essential oils than Gram-negative bacteria which appear more tolerant [13], [16]. Table 3 representing the minimum inhibitory concentration of the studied essential oil.…”

Section: The Antibacterial Activitysupporting

confidence: 75%

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Chemical composition, antibacterial and antioxidant activities of Moroccan Daucus carota essential oils

et al. 2021

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Medicinal and aromatic plants have been widely used for their potential ability to curing diseases and injury. Numerous studies were focused nowadays on the pharmacological proprieties of these plants including the antibacterial and antioxidant activities. In this context, the present study aims to determine the chemical composition of essential oils (EOs) from wild carrot (Daucus carota Linnaeus) and evaluate their and antioxidant and antibacterial activities. The essential oil was obtained by Clevenger apparatus hydro-distillation and analyzed, afterward, using Chromatography-Mass spectrometry (GC-MS). A diffusion technique on agar plates was applied to determine the EOs effect against Gram-positive bacteria, whereas the DPPH radical reduction (1,1-diphényl-2-picrylhydrazy) method was used to estimate the antioxidant activity. Findings analysis identified 57 volatile components during this experiment with a majority of α-Pinene (23,5%) and β-Asarone (16,70%). Therefore, the tested EOs revealed great inhibitory properties against the Gram-positive bacteria, and an antioxidant potential with IC50 = 73.31 ± 4.46 µg/mL.

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Section: The Antibacterial Activitysupporting

confidence: 75%

“…To evaluate the minimum inhibitory concentrations (MICs) of EOs, a method described by Oubihi et al [13] was used. The non-miscibility characteristic of essential oils in water involves their preparation in 0.2% agar solution to ensure uniform Eos distribution and to achieve effective emulsification.…”

Section: Minimum Inhibitory Concentration (Mic)mentioning

confidence: 99%

Chemical composition, antibacterial and antioxidant activities of Moroccan Daucus carota essential oils

et al. 2021

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“…Antibacterial activity is performed using the Muller Hinton agar media diffusion method [16]. A microbial suspension with an optical density of 1 McFarland is spread on the petri dish of agar media.…”

Section: Solid-state Diffusion Methodsmentioning

confidence: 99%

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

et al. 2021

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In recent years, a concern has been expressed about the impact of antibiotics and synthetic antioxidants, which are used to inhibit microbial growth and retard fat oxidation in foods. In addition, antibiotic resistance presents a serious menace to human and environmental ecosystems. This has led the food industry to use natural resources such as essential oils in the preparation of foods, this forming their sensory profile and increasing preservation time there. The objective of this work is to determine the chemical composition and evaluate the antibacterial and antioxidant activity of the essential oil of Illicium verum. The yield of essential oil extracted by hydro distillation is about 4.13%. The chemical composition of the essential oil extracted from the dried fruits of Illicium verum was studied by gas chromatography coupled with mass spectrometry (GC and GC/MS). Twenty-eight constituents, representing 99.74% of the essential oil were identified. The major compounds are: trans-anethole (83.46%), D-Limonene (4.56%), Estragole (3.47%) and Linalool (1.07%). Antioxidant activity was determined by the DPPH assay. The essential oils of Illicium verum showed low antioxidant activity with IC50= 286.19 ± 7.4 mg/mL, compared to Ascorbic acid IC50= 0.09 ± 0.01 mg/mL. The antibacterial effect of this essential oil was tested against six microorganisms, of which Staphylococcus aureus is the most sensitive with an MIC of about 1/1000 (v/v), followed by Staphylococcus epidermidis and Enterobacter cloacae with an MIC equal to 1/100 (v/v).

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“…The disc diffusion method was used to screen the antibacterial activity of P. betle extract against clinical isolates of APEC as previously described (Jaber et al 2021). Brie y, 12.5 µL (200 mg/mL) of plant extract was applied to sterile lter paper discs (6 mm diameter) to give a nal concentration of 2.5 mg/disc.…”

Section: Disc Diffusion Assaymentioning

confidence: 99%

Antibacterial, antibiofilm, and anti-adhesion activities of Piper betle leaf extract against Avian pathogenic Escherichia coli

et al. 2021

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Piper betle leaves have traditionally been used to treat many diseases, including bacterial infections. The present study aimed to investigate the antibacterial, antibio lm, and anti-adhesion activities of P. betle extract against Avian pathogenic Escherichia coli (APEC). The ethanol extract of P. betle leaves demonstrated strong antibacterial activity against clinical isolates of APEC with MIC and MBC values ranging from 0.5-1.0 mg/mL. Disruption and breakdown of the bacterial cells were detected when the cells were challenged with the extract at 2×MIC. Bacterial cells treated with the extract demonstrated longer cells without a septum, compared to the control. The extract at 1/8, 1/4, and 1/2×MIC signi cantly inhibited the formation of bacterial bio lm of the isolates (P<0.05) without inhibiting growth. At 1/2×MIC, 55% of the bio lm inhibition was detected in APEC CH09, a strong bio lm producer. At 32×MIC, 88% of the inhibition of viable cells embedded in the mature bio lm was detected in APEC CH09. Reduction in the bacterial adhesion to surfaces was shown when APEC were treated with sub-MICs of the extract as observed by SEM. The results suggested potential medicinal bene ts of P. betle extract for the treatment of the infection caused by Avian pathogenic E. coli.

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Chemical Composition and Antibacterial Activities of Eight Plant Essential Oils from Morocco against Escherichia coli Strains Isolated from Different Turkey Organs

Cited by 22 publications

References 63 publications

Chemical composition, antibacterial and antioxidant activities of Moroccan Daucus carota essential oils

Chemical composition, antibacterial and antioxidant activities of Moroccan Daucus carota essential oils

Chemical composition, antioxidant and antimicrobial activities of the essential oil of Illicium verum

Antibacterial, antibiofilm, and anti-adhesion activities of Piper betle leaf extract against Avian pathogenic Escherichia coli

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