Antioxidative activity of the essential oils of Thymus sipyleus subsp. sipyleus var. sipyleus and Thymus sipyleus subsp. sipyleus var. rosulans

Tepe, Bektaş; Sökmen, Münevver; Akpulat, H. Aşkın; Daferera, Dimitra; Polissiou, Moschos G.; Sökmen, Atalay

doi:10.1016/j.jfoodeng.2004.04.015

Cited by 157 publications

(99 citation statements)

References 39 publications

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“…Generally, a high variability and diversity is observed in the chemical composition of essential oils of Thymus species: at least 20 different chemotypes in the genus have been established thus far [20]. Furthermore, the production of phenolic compounds is favoured in warmer and drier climatic zones while other, non-phenolic compounds usually accumulate in higher quantities in colder and damper areas [21].…”

Section: Resultsmentioning

confidence: 99%

Chemical composition and antimicrobial activity of Thymus pannonicus All. (Lamiaceae) essential oil

et al. 2008

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This paper presents the results of a study on chemical composition and antimicrobial activity of Thymus pannonicus All. (Lamiaceae) essential oil from Vojvodina province (north of Serbia). The investigated oil was hydrodistilled from a flowering plant and analysed by GC and GC-MS. Fifty-three constituents were identified (>97% of total oil), with geranial (41.42%, w/w) and neral (29.61%, w/w) as the most prominent. The antimicrobial activity of the oil was evaluated using agar disc diffusion and broth microdilution method against Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa, Escherichia coli, two strains of Klebsiella pneumoniae and two strains of Candida albicans. The essential oil exhibited antimicrobial activity to varying degrees against all tested strains. The maximum activity of T. pannonicus oil was observed against E. coli, S. aureus and both tested strains of C. albicans (MIC = 50 μl/ml, each). Moderate activity was observed against P. aeruginosa and one of the tested strains of K. pneumoniae (MIC = 200 μl/ml), while E. faecalis and the other strain of K. pneumoniae expressed a higher degree of resistance (MIC > 200 μl/ml). This study confirms that essential oil of T. pannonicus possesses remarkable in vitro antimicrobial activity against several medicinally important pathogens. This is attributable to lemon-scented citral, a mixture of geranial and neral, which has well-documented antimicrobial activity against a range of bacteria and fungi.

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Section: Resultsmentioning

confidence: 99%

Chemical composition and antimicrobial activity of Thymus pannonicus All. (Lamiaceae) essential oil

et al. 2008

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“…Cependant la faible activité antioxydante de l'essence de T. algeriensis peut être expliquée par la teneur à peine détectable en thymol (0,15%) et l'absence du carvacrol. En effet ces deux derniers constituants phénoliques ont déjà prouvé leur fort pouvoir antioxydant (Kulisic et al, 2004 ;Sokmen et al, 2004 ;Tepe et al, 2005Tepe et al, , 2007. Les composés phénoliques grâce à leurs propriétés d'oxydo-réduction agissent comme agents réducteurs, donneurs de l'hydrogène et de l'oxygène singulier (Rice-Evans et al, 1995).…”

Section: Ciliatus T Bleicherianus and T Algeriensis)unclassified

Activité antioxydante et composition chimique des huiles essentielles de quatre espèces de thym du Maroc

Amarti

Satrani²,

Ghanmi³

et al. 2011

Acta Botanica Gallica

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Mots clés : huile essentielle -Thymus capitatus -Thymus ciliatus -Thymus bleicherianus -Thymus algeriensis -composition chimique -activité antioxydante.Abstract.-The chemical composition of four Thymus species essential oils (T. capitatus, T. ciliatus, T. bleicherianus and T. algeriensis) was determined by GCand GC/SM. The essential oil of T. capitatus is dominated by carvacrol (70.92%), that of T. ciliatus by thymol (44.2%), that of T. bleicherianus contains α-terpinene (42.23%) and thymol (23.95%) as major chemical constituents, while that of T. algeriensis is formed mainly by camphor (27.7%) and α-pinene (20.5%). The antioxidant activity was determined by the DPPH test. The essential oil of T. capitatus, T. ciliatus and T. bleicherianus show strong antioxidant activity with (IC 50 = 69,04 µg/ml, 74,025 µg/ml and 77,8 µg/ml) respectively, compared to the essence of T. algeriensis and other species of thyme in the literature.

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“…Close to 100 species have been identifi ed in the kind of Thymus across the world (Richard et al, 1985).They are reported to possess some biological effects such as antispasmodic (Meister et al, 1999), antibacterial (Essawi;Srour, 2000 andDob et al, 2006), antifungal (Soliman;Badeaa, 2002), antitabagism (Carlini et al, 2006), giardicidal (Amaral et al, 2006) and antioxidant activities (Tepe et al, 2005). The First Edition of Brazilian Offi cial Pharmacopoeia, published in 1926, includes 1702 Monographs for medicinal products.…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and antitumor activity of different wild varieties of Moroccan thyme

Jaafari¹,

Mouse²,

Rakib³

et al. 2007

Rev. bras. farmacogn.

112

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Antioxidative activity of the essential oils of Thymus sipyleus subsp. sipyleus var. sipyleus and Thymus sipyleus subsp. sipyleus var. rosulans

Cited by 157 publications

References 39 publications

Chemical composition and antimicrobial activity of Thymus pannonicus All. (Lamiaceae) essential oil

Chemical composition and antimicrobial activity of Thymus pannonicus All. (Lamiaceae) essential oil

Activité antioxydante et composition chimique des huiles essentielles de quatre espèces de thym du Maroc

Chemical composition and antitumor activity of different wild varieties of Moroccan thyme

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