Antibacterial activity of<i>Thymus pallidus</i>Batt. and determination of the chemical composition of its essential oil

Sqalli, Hakima; Ouarti, Asmae El; Farah, Abdellah; Ennabili, Abdeslam; Haggoud, Abdellatif; Koraichi, Saâd Ibnsouda; Houari, Abdellah; Iraqui, Mohammed

doi:10.1080/12538078.2009.10516160

Cited by 13 publications

(3 citation statements)

References 21 publications

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“…The oil of T. satureioides, which is an endemic species of Morocco, was reported to contain borneol (29.4%), camphene (11.8%) and α-pinene (6.6%) [7]. Another study showed that the essential oil of T. pallidus, which is also an endemic species of Morocco, contained α-terpinene (42.2%), thymol (23.9%) and β-ocimene (8.3%) [12]. Generally, a great variability and diversity is observed concerning the chemical composition of the essential oils of Thymus species and subspecies of different origin due to climatic and soil variations, to the vegetative cycle, and to seasonal variation [13,14].…”

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confidence: 99%

Chemical Composition, Antibacterial and Antioxidant Activities of the Essential Oils from Thymus satureioides and Thymus pallidus

Ghalbane

Belaqziz

Loubna

et al. 2011

Natural Product Communications

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This study was designed to examine the in vitro antibacterial and antioxidant activities of the essential oils (EOs) of Thymus satureioides (T.s) and T. pallidus (T.p). EOs were isolated by steam distillation and analyzed by capillary gas chromatography and gas chromatography coupled to mass spectrometry (GC-MS). The major constituents of the volatile fraction of T. satureioides were borneol (29.5%), carvacrol (9.1%), and β-caryophyllene (8.2%), while those of T. pallidus were camphor (29.8%), dihydrocarvone (17.6%), borneol (7.6%) and camphene (7.5%). The essential oils were tested against a panel of Gram+ and Gram-bacteria by using agar diffusion and broth dilution methods. The data indicated that the Gram-positive Bacillus subtilis was the most sensitive strain producing an average inhibition zone of 51.7 mm. Furthermore, Pseudomonas aeruginosa, known as a resistant strain, was also sensitive. The samples were also subjected to screening for their possible antioxidant activity by using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The IC 50 values of the oil of T. satureioides and T. pallidus were 0.32 and 11.6 mg/mL, respectively.

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confidence: 99%

Chemical Composition, Antibacterial and Antioxidant Activities of the Essential Oils from Thymus satureioides and Thymus pallidus

Ghalbane

Belaqziz

Loubna

et al. 2011

Natural Product Communications

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“…Quand à la concentration minimale bactéricide la plus faible égalant à 0.031% est enregistrée pour les HEs des plantes Mentha pulegium et Thymus satureioides (Chraibi et al, 2016), suivie par celle de l'HE de Thymus pallidus Batt étant de 0.08% (Sqalli et al, 2009), alors que la CMB d'HE de Mentha piperita vient au dernier rang avec une valeur de 0.5% contre M. smegmatis (Chraibi et al, 2017 Précédemment, il est rapporté par plusieurs recherches que ces molécules sont dotées d'un effet antimycobactérien (Haouat et al, 2013 ). Prenant par exemple, le cas de l'étude réalisée par Anand et ses collaborateurs (2006) ayant montré que l'épigallocatechin-3-gallate, un composant majeur des polyphénols du thé vert, inhibe la croissance de M. tuberculosis survivant à l'intérieur des macrophages humains via la régulation négative de l'expression d'un gène codant pour la coronine-1, appelée encore TACO (pour tryptophan aspartate containing coat protein) à travers l'inhibition de l'activité de facteur de transcription Sp1.…”

Section: Discussionunclassified

Effet Antimycobactérien Des Plantes Marocaines: Revue Générale

Zahir

Taghiam

2018

ESJ

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Tuberculosis is a major public health problem in the world. It is the leading cause of death from infectious diseases. The upsurge of this disease is mainly due to the emergence of multi-resistant and ultra-resistant strains of Mycobacterium tuberculosis. Hence, efforts to find out new antimycobacterial substances are needed. In this context, plants constitute an immense reservoir of original active molecules with interesting biological effects. Hence, they represent a promising way to discover substances that can possibly better control mycobacterial infections and reduce the emergence of bacterial resistance to anti-tubercular drugs. Consequently, our herein work focuses on the presentation of the antimycobacterial activity of the extracts and / or essential oils of 21 Moroccan plants, through the results analysis of scientific investigations carried out between 2007 and 2017 retained via an electronic navigation by using different databases (ScienceDirect, Pubmed, Scopus, Google Scholars and Google), thus revealing the efforts made by Morocco to fight against tuberculosis.

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“…Therefore, the most encountered compounds are α-Terpinene, thymol, carvacrol, β-ocimene, menthone, borneol, ρ-cymene, β-linalol and caryophyllene. These bioactive molecules are responsible for its antioxidant, antifungal, antibacterial and anti-tumor properties (Fadli et al 2011;Jaafari et al 2007;Jamali et al 2012;Sqalli et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Conservation of Thymus pallidus Cosson ex Batt. by shoot tip and axillary bud in vitro culture

et al. 2020

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Here, we describe an efficient and rapid protocol for the micropropagation of Thymus pallidus Cosson ex Batt., a very rare medicinal and aromatic plant in Morocco. After seed germination, we tested the effect of different macronutrients, cytokinins alone or in combination with gibberellic acid (GA 3) or auxins, on T. pallidus plantlet growth. We found that Margara macronutrients (N 30 K) had the best effect on the in vitro development of the plantlets. The addition of 0.93 µM/L 1,3-diphenylurea (DPU), 0.46 µM/L adenine (Ad), and 0.46 and 0.93 μM/L kinetin (Kin) resulted in the best shoot multiplication and elongation. In addition, the combination of 0.46 µM/L Kin, DPU, or Ad with gibberellic acid, in particular, 0.46 µM/L Ad + 0.58 µM/L GA 3 and 0.46 µM/L Kin + 1.15 µM/L GA 3 , led to better bud and shoot multiplication. Moreover, the integration of the combinations of 0.46 μM/L Kin and auxins, namely 0.46 µM/L Kin + 2.85 µM/L indole-3-acetic acid (IAA), 0.46 µM/L Kin + 2.85 or 5.71 µM/L indole-3-butyric acid (IBA), and 0.46 µM/L Kin + 0.3 or 0.57 µM/L 1-naphthaleneacetic acid (NAA), in the culture medium led to better root development and optimized aerial growth. Finally, the in vitro plants from the medium containing N 30 K + 0.46 µM/L Kin + 2.85 µM/L IAA were successfully acclimatized; these plants served as a source for repeating in vitro culture.

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Antibacterial activity ofThymus pallidusBatt. and determination of the chemical composition of its essential oil

Abstract: Antibacterial activity of Thymus pallidus Batt. and determination of the chemical composition of its essential oil

Cited by 13 publications

References 21 publications

Chemical Composition, Antibacterial and Antioxidant Activities of the Essential Oils from Thymus satureioides and Thymus pallidus

Chemical Composition, Antibacterial and Antioxidant Activities of the Essential Oils from Thymus satureioides and Thymus pallidus

Effet Antimycobactérien Des Plantes Marocaines: Revue Générale

Conservation of Thymus pallidus Cosson ex Batt. by shoot tip and axillary bud in vitro culture

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