Composition and the in vitro Antimicrobial Activities of the Essential Oils of some Thymus Species

Abstract

The genus Thymus (Lamiaceae) is represented by 38 species (64 taxa) in Turkey, and 24 of which are endemic to Turkey. Aerial parts of Thymus longicaulis subsp. chaubardii var. chaubardii, T. zygioides var. lycaonicus, T. longicaulis subsp. longicaulis var. subisophyllus and T. pulvinatus collected from three different localities in Balikesir province were subjected to hydrodistillation to yield essential oils which were subsequently analysed by GC and GC/ MS. The main constituents of the oils were identified, and antimicrobial bioassay was applied. Thymol (56.6%, 42.8%, 36.9%) was the main component in the oils of T. longicaulis subsp. chaubardii var. chaubardii (chemotype I), T. longicaulis subsp. chaubardii var. chaubardii (chemotype II) and T. zygioides var. lycaonicus respectively. The oil of T. longicaulis subsp. longicaulis var. subisophyllus contained carvacrol (60.0%) and the oil of T. pulvinatus borneol (27.9%) as main constituents.

Antimicrobial, Antioxidant, and Anti-Inflammatory Activities of Essential Oils from Five Selected Herbs

“…Similarly to the results of earlier studies, the C. martinii and T. vulgaris essential oils showed potent antimicrobial activities against many microorganisms. [23][24][25] However, this study is the first to report a description of the antimicrobial activity of the L. anagallis essential oil, and our results indicate that the essential oil of this herb can serve as an effective antimicrobial additive.…”

Antimicrobial activity of Thymus longicaulis C. Presl essential oil against respiratory pathogens

“…Three reports have been published concerning the antimicrobial activity of T. longicaulis recently. Essential oils isolated from T. longicaulis of Italian origin as well as from its two subspecies chaubardi and longicaulis growing in Turkey showed activities against several standard strains of common pathogenic bacteria and Candida albicans [27,28]. Susceptibility of foodborne bacteria on T. longicaulis essential oil was also assessed [29].…”

Phtytochemical Studies and Quantitative HPLC Analysis of Rosmarinic Acid and Luteolin 5-<i>O</i>-β-D-Glucopyranoside on <i>Thymus praecox</i> subsp. <i>grossheimii</i> var. <i>grossheimii</i>

“…6,7) Thymus species growing in Turkey are rich in essential oils, triterpenes, phenolic acids, flavonoids and monoterpene glucosides. [6][7][8][9][10][11][12][13][14][15][16][17][18] T. praecox ssp. grossheimii var.…”