Inhibitory effect of thyme and basil essential oils, carvacrol, thymol, estragol, linalool and p-cymene towards Shigella sonnei and S. flexneri

Bagamboula, Cf; Uyttendaele, Mieke; Debevere, Johan

doi:10.1016/s0740-0020(03)00046-7

Cited by 590 publications

(368 citation statements)

References 34 publications

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“…The possible antimicrobial action of methyl chavicol might be arrived from the complexation between the protein or other components of the cell membrane of the microbes and the phenolic components in the essential oil as previous reported [48]. Furthermore, methyl chavicol showed limited and weak antibacterial activity [49] which was similar to our report. According to its antifungal activity, the volatile oil from this plant might be used as an active ingredient in antifungal formulations.…”

Section: Resultssupporting

confidence: 91%

Substituted Pyrazolo[3,4-B]Pyridin-3-Ones and Pyrazolo[3,4-B]Pyridine-5- Carbaldehyde, New One-Pot Synthesis Strategy Amelioration Using Vinamidinium Salts, Antibacterial and Antifungal Activities Promising Environmental Protection

Chtiba¹,

Amri²,

Tazarki³

et al. 2017

J Bacteriol Parasitol

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This review summarizes the current knowledge about the syntheses and biological behavior of some pyrazolo [5,4-b]pyridines. So, an expedient method for the synthesis of 2-phenyl-5-aryl-1,6-dihydropyrazolo [3,4-b]pyridin-3-ones and 2-phenyl-3-oxo-1,6-dihydropyrazolo[3,4-b]pyridine-5-carbaldehyde in a single-step via condensation of vinamidinium salts with 3-amino-1-phenyl-2-pyrazolin-5-one is described according to our recent study with synthesis strategy amelioration. Five derivatives (PYR 1-5 ) were prepared and characterized by spectral data (NMR and MS spectral studies). All the derivatives were studied for their antimicrobial activities. So, we screened for antibacterial effects at 1:2, and 1:4 dilutions by the paper disc diffusion method against respectively Bacteria (Escherichia coli CIP 53126 and Bacillus subtilis CIP 5262) and Fungi (Candida albicans ATCC 10231). Then, we screened for Fungi (Aspergillus niger ATCC 16404) by the dilution method (agar and liquid broth). The agar diffusion method (paper disc and well) and the dilution method (agar and liquid broth) are described.

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Section: Resultssupporting

confidence: 91%

Substituted Pyrazolo[3,4-B]Pyridin-3-Ones and Pyrazolo[3,4-B]Pyridine-5- Carbaldehyde, New One-Pot Synthesis Strategy Amelioration Using Vinamidinium Salts, Antibacterial and Antifungal Activities Promising Environmental Protection

Chtiba¹,

Amri²,

Tazarki³

et al. 2017

J Bacteriol Parasitol

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“…It has been demonstrated that most terpenes do not possess high inherent antimicrobial activity. For instance, p-cymene, one of the most important components of thyme EO, does not show antimicrobial activity against many Gram-negative pathogens (Bagamboula et al, 2004). Other terpenes, such as limonene, α-pinene, β-pinene, γ-terpinene, δ-3-carene, sabinene and α-terpinene show a very low or no antimicrobial activity against some bacteria (Dormans and Deans, 2000).…”

Section: Antibacterial Activitymentioning

confidence: 99%

Chemical Composition and in vitro Antibacterial Activity of the Essential Oils of the Leaves, Resin and Stem-Barks of Dacryodes edulis (G. Don) H. J Lam growing in Cameroon on Diarrhea Associated Strains

Riwom¹,

Foe²,

Nyegue³

et al. 2015

J App Pharm Sci

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The aim of this work was to determine the chemical profile and assess in vitro the antibacterial activity of the leaves, resin and stem-barks of Dacryodes edulis. The essential oils were analyzed simultaneously by Gas Chromatography and Gas Chromatography coupled to Mass Spectrometry. Agar diffusion well and microdilution methods were used to assay the antibacterial activity. The resin essential oil contained p-cymene (30.32%), α-thujene (28.58%), α-phellandrene (27.14%) and β-phellandrene (10.16%) as the main components; the stembarks essential oil had as abundant components p-cymene (35.14%), trans-carveol (22.60%), α-thujene (14.86%), β-phellandrene (8.65%) and β-elemene (5.22%). The leaves essential oil was distinct with elemol (29.22%), caryophyllene oxide (15.26%), trans-carveol (11.80%) and spathulenol (6.28%) as major components. The leaves essential oil was the most active with MIC and MBC value of 18.75 mg/mL on B. cereus; the most susceptible strain. The stem-barks essential oil had a MIC of 50 mg/mL and MBC of 100 mg/mL on all the strains meanwhile the resin essential oil had a bacteriostatic effect at 200 mg/mL. Based on these results, it emanates that the essential oils of D. edulis represent a potential source of antibacterial substances.

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“…Due to promising biological activities including cytotoxic (Yang et al, 2014), anti-microbial (Bagamboula et al, 2004), insect-repellant properties (Beier et al, 2014), anti-inflammatory activity (Peana et al, 2002), antihyperglycemic (Weaver et al, 1991;More et al, 2014), antitumorigenic potential (Jana et al, 2014) and sedative effects, linalool as a natural plant-product has been extensively applied in various fields, such as perfumes, cosmetics, flavoring agents and medical science (Re et al, 2000). However, linalool is unstable, volatile and readily oxidizable.…”

Section: Introductionmentioning

confidence: 99%

Production and characterization of nanocapsules encapsulated linalool by ionic gelation method using chitosan as wall material

Xiao

Zhu

2017

Food Sci. Technol

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Linalool has been extensively applied in various fields, such as flavoring agent, perfumes, cosmetics and medical science. However, linalool is unstable, volatile and readily oxidizable. A sensitive substance can be encapsulated in a capsule, so encapsulation technology can solve these problems. In this paper, linalool-loaded nanocapsules (Lin-nanocapsules) were prepared via the ionic gelation method and Lin-nanocapsules were characterized. The results of Fourier transformation infrared spectroscopy (FTIR) showed that linalool was successfully encapsulated in the wall materials. Scanning electron microscopy (SEM) results demonstrated that the shapes of Lin-nanocapsules, with smooth surfaces, were nearly spherical. Lin-nanocapsule average particle size was 352 nm and its polydispersity index (PDI) was proved to be 0.214 by the results of dynamic light scattering (DLC). Thermogravimetric results indicated that linalool loading capacity (LC) was 15.17%, and encapsulation could decrease linalool release and increase linalool retaining time under the high temperature. Oscillatory shear and steady-state shear measurements of Lin-nanocapsule emulsions were systematically investigated. The results of steady-state shear showed that Lin-nanocapsule emulsion, which was Newtonian only for high shear rate, was non-Newtonian. It was proved by oscillatory shear that when oscillation frequency changed from low to high, Lin-nanocapsules emulsion changed from viscous into elastic.Keywords: lin-nanocapsules; flavor; encapsulation; rheology.Practical Application: Lin-nanocapsules were prepared via the ionic gelation method.

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Inhibitory effect of thyme and basil essential oils, carvacrol, thymol, estragol, linalool and p-cymene towards Shigella sonnei and S. flexneri

Cited by 590 publications

References 34 publications

Substituted Pyrazolo[3,4-B]Pyridin-3-Ones and Pyrazolo[3,4-B]Pyridine-5- Carbaldehyde, New One-Pot Synthesis Strategy Amelioration Using Vinamidinium Salts, Antibacterial and Antifungal Activities Promising Environmental Protection

Substituted Pyrazolo[3,4-B]Pyridin-3-Ones and Pyrazolo[3,4-B]Pyridine-5- Carbaldehyde, New One-Pot Synthesis Strategy Amelioration Using Vinamidinium Salts, Antibacterial and Antifungal Activities Promising Environmental Protection

Chemical Composition and in vitro Antibacterial Activity of the Essential Oils of the Leaves, Resin and Stem-Barks of Dacryodes edulis (G. Don) H. J Lam growing in Cameroon on Diarrhea Associated Strains

Production and characterization of nanocapsules encapsulated linalool by ionic gelation method using chitosan as wall material

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